記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Headache is frequently reported as a neurological manifestation of myeloproliferative neoplasms (MPNs), including polycythemia vera and essential thrombocythaemia. This study sought to clarify the clinical characteristics and response to treatment of headaches in patients with MPNs. METHODS: We prospectively studied 137 patients with MPNs. The following information was gathered to assess the features of headache at baseline and at follow-up (>6 months): (1) average duration of headache attacks, (2) number of headache days per month, (3) numerical rating scale (NRS), (4) Headache Impact Test-6 (HIT-6), and (5) Migraine Disability Assessment (MIDAS). We compared those parameters for headaches between the baseline and follow-up interviews according to the management. RESULTS: Thirty-seven (27.0%) patients had headache. The prevalence of headaches gradually decreased with increasing age (Age ≤ 49 years: 61.0%, 50-59 years: 38.5%, 60-69 years: 17.2%, 70-79 years: 5.1%, and ≥80 years: 0.0%, P < 0.001). Multiple logistic regression analysis showed that younger age, but not platelet counts or the JAK2 V617F mutation, was independently associated with headaches (Odds Ratios 2.004, 95% confidence intervals 1.293-3.108, P = 0.002). Scintillating scotomas were present in 22 (59.5%) of 37 patients with headaches, while four patients developed sudden headaches that lasted for only 0-10 min. Follow-up interviews were available for 31 (83.8%) of 37 patients with headaches. Twenty-one (67.7%) patients were treated with low-dose aspirin (100 mg once daily) [low-dose aspirin alone: n = 9; combined cytoreductive therapy: n = 12] for headache management. All parameters for headache [average duration of headache attacks, number of headache days per month, NRS score, HIT-6 score, and MIDAS score (all P < 0.001)] were significantly improved at follow-up in patients taking low-dose aspirin. However, there were no significant differences in these parameters of headaches in patients who did not receive low-dose aspirin. CONCLUSION: Headaches is common in patients with MPNs, particularly in younger patients. MPN-related headaches may be managed by using low-dose aspirin and controlling MPNs.

DOI： 10.3389/fneur.2022.1051093

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記述言語：英語  

A 49-year-old woman developed vomiting, hiccups, double vision, and bilateral ptosis, after which tinnitus and deafness appeared. Head magnetic resonance imaging (MRI) showed a brainstem lesion focused on the midbrain and pons. Anti-aquaporin 4 (AQP4) antibody was positive, and there was no evidence of optic neuritis or myelitis, leading to the diagnosis of neuromyelitis optica spectrum disorder (NMOSD). The auditory brainstem response (ABR) showed no derivation of wave V on left stimulation and extended latency between waves III and V on right stimulation, so impairment between the midbrain and pons was suspected. It was useful to evaluate head MRI and the ABR for identification of the location of auditory pathway dysfunction.

DOI： 10.1016/j.heliyon.2021.e06106

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Objective Computed tomography (CT) can be used for visualizing acute intracerebral hemorrhages (ICHs) as distinct hyperdense areas and cerebral edema as perihematomal low-density areas (LDAs). We observed a perihematomal LDA on CT, which appeared to be part of a hemorrhage on magnetic resonance imaging (MRI) in acute ICH. We named this "CT perihematomal rim" and evaluated its characteristics and clinical significance. Methods We stratified patients with acute ICH according to the presence or absence of a CT perihematomal rim and then compared their radiologic findings. Logistic regression analyses were performed to assess whether the CT findings can predict the presence of a CT perihematomal rim. Patients Patients within 24 hours of ICH onset who were admitted between September 1, 2014, and October 31, 2018, were registered. Results Overall, 139 patients (91 men; mean age, 66 years) were investigated. CT perihematomal rims were observed in 40 patients (29%). ICH volumes on CT were 30% smaller than those on MRI in patients with CT perihematomal rims. On a multivariate analysis, the presence of a CT perihematomal rim was independently associated with the maximum diameter of the perihematomal LDA. According to a receiver operating characteristic analysis, the maximum LDA diameter threshold was 7.5 mm (sensitivity, 85%; specificity, 83%). Conclusion CT perihematomal rims were observed in 29% of the patients with acute ICH. A perihematomal LDA (>7.5 mm) in acute ICH cases should be considered a CT perihematomal rim. Clinicians should be aware that the ICH volume on CT may be underestimated by 30%.

DOI： 10.2169/internalmedicine.6653-20

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND AND PURPOSE: Urinary liver-type fatty-acid binding protein (L-FABP), which is a biomarker of kidney tubule injury, has been studied extensively and established as a risk marker of acute kidney injury (AKI). The aim of this study was to investigate whether kidney tubule injury is associated with the development of AKI and mortality in patients with acute ischaemic stroke. METHODS: Acute ischaemic stroke patients hospitalized in the stroke care unit (SCU) within 24 h after symptom onset were prospectively investigated. AKI was defined on the basis of Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Baseline urinary L-FABP was measured on admission. We evaluated the associations among urinary L-FABP, incidence of AKI, and 90-day mortality adjusted for renal function, albuminuria and other potentially predictive variables, using multivariable analysis. RESULTS: In total, 527 acute ischaemic stroke patients (342 men, median age 74 years) were enrolled in the study. Twenty-seven patients (5.1%) experienced AKI within 7 days of admission. In the univariate analysis, high urinary L-FABP level had positive associations with AKI [53.8 μg/g creatinine (Cr) vs. 3.9 μg/g Cr; P < 0.001] and 90-day mortality (15.5 μg/g Cr vs. 4.0 μg/g Cr; P < 0.001). In the multivariate analysis, elevated urinary L-FABP level (per 10-μg/g Cr increase) was independently associated with AKI (odds ratio 1.225, 95% confidence interval (CI) 1.083-1.454; P = 0.003) and 90-day mortality (hazard ratio 1.091, 95% CI 1.045-1.138; P < 0.001). CONCLUSION: Urinary biomarkers of kidney tubule injury are independently associated with the development of AKI and 90-day mortality in patients with acute ischaemic stroke treated at the SCU.

DOI： 10.1111/ene.14448

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Myeloproliferative neoplasms (MPNs) including polycythemia vera (PV) and essential thrombocythemia (ET) have an increased risk of ischemic stroke. However, little is known about brain morphological changes and the cerebral vasculature in MPNs. The aim of the present study is to clarify the prevalence rates of brain infarcts (BIs) on magnetic resonance imaging (MRI) and to assess the detailed clinical and MRI characteristics in those patients. METHODS: We prospectively enrolled patients with MPNs who underwent brain MRI between September 2017 and June 2019. BI patterns were characterized by the numbers and locations of BIs on MRI. RESULTS: A total of 101 patients were included in the present study. BIs were observed in 23 patients (23%). Multiple logistic regression analysis showed that age > 60 years (odds ratio (OR) 7.34, 95% confidence interval (CI) 1.08-49.7, p = .041) and history of thrombosis (OR 40.6, 95% CI 7.97-207, p < .0001) were independently associated with BIs, but not the JAK2V617F mutation. Of the 23 patients with BIs, eight patients (35%) had multiple territorial infarcts, and large vessel involvement was identified in five patients (22%). Two patients had thrombus formation in large vessels. CONCLUSIONS: Among patients with MPNs who underwent MRI, BIs were observed in 23% of patients followed up in our center. Older age and thrombosis history were independently associated with BIs. Some patients with MPNs may present with distinctive MRI findings including multiple territorial infarcts and thrombus formation in large vessels.

DOI： 10.1016/j.jns.2020.116990

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記述言語：英語  

Myotonic dystrophy type 1 (DM1) is an autosomal dominant inherited muscular dystrophy caused by an expanded CTG repeat in the dystrophia myotonica protein kinase (DMPK) gene. Cardiac involvements in DM1 are characterized by cardiac conduction delays and atrial or ventricular tachycardia, which increase the risk of sudden cardiac death when compared with general population. Only a few reports have investigated the association between DM1 and inherited arrhythmias, including Brugada syndrome and a splicing abnormality of the SCN5A gene, encodes the α-subunit of cardiac voltage-gated Na+ channels. Here we report a 24-year-old male patient with progressive grip myotonia and dysphagia, who was genetically diagnosed with idiopathic ventricular fibrillation (IVF) caused by a novel V1764fsX1786 frameshift mutation in the SCN5A gene at the age of 18 years. Family history was negative for arrhythmia, cardiac sudden death, and neuromuscular disorders. Genetic analysis using the Southern blot technique revealed 350 CTG repeats in the DMPK gene. This is the first case of DM1 with genetically confirmed overlapping CTG repeat expansion and a V1764fsX1786 frameshift mutation in the SCN5A gene. Our case suggests that a loss-of-function in the cardiac sodium channel may contribute to the cardiac complications in DM1 patients.

DOI： 10.1016/j.jocn.2020.02.007

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記述言語：英語  

Here, we report a case involving a 67-year-old Japanese woman with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) associated with a novel in-frame complex rearrangement in the NOTCH3 gene. The patient had gradually developed cognitive impairment since the occurrence of an ischemic stroke at the age of 53 years. Her mother had a history of stroke and dementia. Fluid-attenuated inversion recovery magnetic resonance imaging of the brain showed hyperintense lesions in the bilateral temporal poles, external capsules, and periventricular white matter accompanied by multiple cerebral microbleeds on T2*-weighted gradient-echo imaging. A novel in-frame mutation (c.598_610delinsAGAACCC) resulting in the loss of Cys201 in the fifth epidermal growth factor-like repeat of NOTCH3 was identified; this led to a diagnosis of CADASIL. In summary, we report a novel pathogenic mutation (NOTCH3 c.598_610delinsAGAACCC; p.Pro200_Ser204delinsArgThrPro) associated with CADASIL. Further investigations should elucidate the genotype-phenotype correlations in patients with this in-frame complex rearrangement.

DOI： 10.1016/j.jstrokecerebrovasdis.2019.104482

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Anticoagulant therapy often requires temporary interruption. Nevertheless, the frequency and clinical characteristics of stroke patients who develop stroke during anticoagulant interruption are not fully known. METHODS: From March 2011 through May 2017, consecutive acute ischemic stroke patients with AF who were admitted to our stroke unit were retrospectively recruited. Patients who developed ischemic stroke during anticoagulant interruption were defined as those who developed ischemic stroke within 30 days from anticoagulant interruption. The frequency and clinical characteristics of patients during anticoagulant interruption were analyzed. RESULTS: A total of 561 patients with AF and acute ischemic stroke (237 women; median age 78 [IQR 71-85] years) were admitted during the study period. Of these, 21 (3.7%, 12 patients discontinued vitamin K antagonist [VKA] and 9 discontinued direct oral anticoagulants [DOACs]) patients were admitted during the period of anticoagulant interruption. Severity and functional outcomes in stroke patients during anticoagulant interruption were not different from those without anticoagulant treatment. The number of days between anticoagulant interruption and stroke onset was shorter in patients who discontinued DOACs (3 [3-5] days) than in those who discontinuedVKAs (10 [7-20] days, p = .004). The major reason for interruption was planning of invasive procedures (52%). Guideline deviations were suspected in 82% of such cases. CONCLUSION: Patients developing stroke during anticoagulant interruption accounted for 3.7% of stroke patients with AF. Strokes occurred relatively early after interruption, especially in patients who discontinued DOACs. Guideline deviations was frequent.

DOI： 10.1016/j.jns.2019.03.018

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Atrial fibrillation (AF) is the leading cause of cardioembolic stroke (CES), and patients with stroke and AF are frequently assumed to have CES. However, strokes presumably due to atherosclerotic pathophysiologies in large or small vessels can also occur in patients with AF. The aims of the present study were to clarify the prevalence of and factors related to a non-cardioembolic etiology in acute stroke patients with AF. METHODS: From March 2011 through May 2017, consecutive acute ischemic stroke patients with AF were retrospectively recruited. The concomitant presence of non-cardioembolic features (small vessel occlusion [SVO] or large artery atherosclerosis [LAA]) on imaging was evaluated. The frequency of and factors associated with co-existing SVO/LAA features were assessed. RESULTS: A total of 560 consecutive patients with AF and acute stroke (237 women; median age 78 [IQR 71-85] years; NIHSS score 9 [3-20]) were enrolled. Of these, 42 (7.5%) had co-existing SVO/LAA features. Multivariable logistic regression analysis showed that the brain natriuretic peptide level (BNP, OR 0.78, p = .030 per 100 pg/mL increase) was independently and negatively associated with co-existing SVO/LAA features and receiver operating characteristic curve analysis revealed the practical cut-off BNP value was 130 pg/mL (sensitivity 54% and specificity 68%). CONCLUSION: SVO/LAA features were found in 7.5% of acute stroke patients with AF. A relatively low BNP level on admission was independently associated with co-existing SVO/LAA features. Thorough examination for a more appropriate etiology may be particularly necessary in acute stroke patients with AF and a relatively low BNP level.

DOI： 10.1016/j.jns.2019.03.031

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

OBJECTIVE: We investigated the precise clinical and radiologic characteristics of intracerebral hemorrhage associated with direct oral anticoagulant use. METHODS: Patients with acute spontaneous intracerebral hemorrhage admitted to our department from September 2014 to November 2017 were retrospectively analyzed. Clinical and neuroradiological characteristics of patients with direct oral anticoagulant-related intracerebral hemorrhage, and effects of prior treatment on the severity at admission and on outcome at discharge were assessed. RESULTS: Of the 301 enrolled patients (103 women; median age 68 years), 261 received no oral anticoagulants (86.8%), 20 received warfarin (6.6%), and 20 received direct oral anticoagulants (DOACs) (6.6%). Median initial National Institutes of Health Stroke Scale scores differed significantly among the groups (P = .0283). Systolic blood pressure (P = .0031) and estimated glomerular filtration rate (P = .0019) were significantly lower in the oral anticoagulant-related intracerebral hemorrhage group than in other groups. Total small vessel disease scores were significantly higher in the oral anticoagulant-related intracerebral hemorrhage group than in the warfarin group (P = .0413). Multivariate analysis revealed that prior oral anticoagulant treatment (odds ratio: 0.21, 95% confidence interval: 0.05-0.96, P = .0445) was independently negatively associated with moderate-to-severe neurological severity (stroke scale score ≥10) after adjusting for intracerebral hemorrhage location and various risk factors. There were significant differences in hematoma volume in the basal ganglia (P = .0366). CONCLUSIONS: DOAC-related intracerebral hemorrhage may occur particularly in patients with a high risk of bleeding; however, they had a milder initial neurological severity than those with warfarin-related intracerebral hemorrhage, possibly due to relatively smaller hematoma volume, especially in the basal ganglia.

DOI： 10.1016/j.jstrokecerebrovasdis.2018.12.013

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Because the efficacy and safety of anticoagulant therapy in patients with acute intracerebral hemorrhage (ICH) are not fully known, present study aimed to elucidate the current status and the safety of anticoagulant therapy, mainly direct oral anticoagulants (DOACs), for acute ICH and anticoagulant-indicated patients. Methods and Results: From September 2014 through March 2017, consecutive patients with acute (<7 days from onset), spontaneous ICH were retrospectively enrolled from a prospective registry. Whether to start anticoagulation was at the attending physicians' discretion, and thromboembolic or hemorrhagic events during hospitalization were analyzed. A total of 236 patients (80 women [34%]; median age 69 [interquartile range 61-79] years; National Institutes of Health stroke scale score 7 [3-16]) were enrolled. Of them, 47 patients (20%) had an indication for anticoagulant therapy (33 had atrial fibrillation, 14 developed deep vein thrombosis), and 41 of 47 patients (87%) were actually treated with anticoagulant therapy (DOACs were used in 34 patients) after a median of 7 days from ICH onset. There was neither hematoma expansion nor excessive hemorrhagic complications during hospitalization after starting anticoagulant therapy. CONCLUSIONS: Anticoagulant therapy was conducted for approximately 90% of anticoagulation-indicated patients after a median of 7 days from ICH onset. The predominant anticoagulant medications were DOACs. Anticoagulant therapy started from the acute phase of ICH should be safe.

DOI： 10.1253/circj.CJ-18-0938

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND AND PURPOSE: The association between thyroid hormone levels and long-term clinical outcome in patients with acute stroke has not yet been thoroughly studied. The purpose of the present study was to test the hypothesis that thyroid hormone levels are associated with 3-month functional outcome and mortality after acute stroke. METHODS: We retrospectively analyzed 702 consecutive patients with acute stroke (251 women; median age, 73 years) who were admitted to our department. General blood tests, including thyroid stimulating hormone (TSH), free triiodothyronine (FT3), and free thyroxine (FT4), were performed on admission. Neurological severity was evaluated using National Institutes of Health Stroke Scale (NIHSS) scores on admission and modified Rankin Scale (mRS) scores at 3 months after stroke onset. Poor outcome was defined as an mRS score of 3-5 or death. The impact of thyroid function on 3-month outcome was evaluated using multiple logistic regression analysis. RESULTS: Poor functional outcome was observed in 295 patients (42.0%). Age (P < .0001), female sex (P < .0001), admission NIHSS score (P < .0001), smoking (P = .0026), arterial fibrillation (P = .0002), preadmission mRS (P < .0001), estimated glomerular filtration rate (P = .0307), and ischemic heart disease (P = .0285) were significantly associated with poor functional outcome, but no relationship between FT4, TSH, and poor functional outcome was found. A multivariate logistic regression analysis showed that low FT3 values (<2.00 pg/mL) were independently associated with poor functional outcome (odds ratio [OR], 3.16; 95% confidence interval [CI], 1.60-6.24) and mortality (OR, 2.55; 95% CI, 1.33-4.91) at 3 months after stroke onset. CONCLUSIONS: Our data suggest that a low FT3 value upon admission is associated with a poor 3-month functional outcome and mortality in patients with acute stroke.

DOI： 10.1016/j.jstrokecerebrovasdis.2018.06.009

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: This study investigated changes in anticoagulant use, treatment, and functional outcomes in acute ischemic stroke (AIS) patients with non-valvular atrial fibrillation (NVAF) over a 6-year period. Methods and Results: Patients with AIS and NVAF admitted to our department from April 2011 to March 2017 were analyzed retrospectively. Patients were divided into 3 groups based on the time of the initial visit (Periods 1-3, corresponding to April 2011-March 2013, April 2013-March 2015, and April 2015-March 2017, respectively). Associations between prescribed medication prior to event and stroke severity, reperfusion therapy, and outcomes were assessed. There was no significant change in the rate of insufficient warfarin and inappropriately lowered doses of direct oral anticoagulant (DOAC) treatment over time. The number of patients receiving prior DOAC treatment increased, but neurological severity on admission was milder than in the other 2 groups. The rate of reperfusion therapy increased from 19.9% (Period 1) to 42.7% (Period 3) for moderate-to-severe stroke patients. Multivariate logistic regression analysis revealed that reperfusion therapy was independently positively associated with good functional outcomes, but negatively associated with mortality (odds ratios [95% confidence intervals] 7.14 [3.34-15.29] and 0.13 [0.008-0.69], respectively). CONCLUSIONS: Inappropriate anticoagulant use for stroke patients with NVAF did not decrease over time. An increase in reperfusion therapy was a strong factor in improved functional outcomes and mortality.

DOI： 10.1253/circj.CJ-18-0561

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Background The aims of the present study were to investigate the relationships between prior direct oral anticoagulant ( DOAC ) therapy and infarct volume and the site of arterial occlusion in patients with acute ischemic stroke and non-valvular atrial fibrillation. Methods and Results From March 2011 through November 2016, consecutive patients with acute ischemic stroke in the middle cerebral artery territory and non-valvular atrial fibrillation were recruited. The infarct volume was assessed semi-automatically using initial diffusion-weighted imaging, and the arterial occlusion site was evaluated on magnetic resonance angiography. The effect of prior DOAC treatment on the site of arterial occlusion was assessed by multivariate ordinal logistic regression analysis. A total of 330 patients (149 women; median age 79 [quartiles 71-86] years; median National Institutes of Health Stroke Scale score 11 [4-21]) were enrolled. Of these, 239 were on no anticoagulant, 40 were undertreated with a vitamin K antagonist ( VKA ), 22 were sufficiently treated with VKA ( PT - INR ≥1.6), and 29 were on a DOAC before the acute ischemic stroke. The infarct volume on admission differed among the groups (median 14.5 [2.0-59.8] cm3 in patients with no anticoagulation, 24.8 [2.1-63.0] in undertreated VKA , 1.3 [0.3-13.5] in sufficient VKA , and 2.3 [0.5-21.0] in DOAC , P=0.001). Multivariate analysis showed that prior DOAC treatment was independently and negatively associated with more proximal artery occlusion (odds ratio [OR] 0.34, P=0.015), compared with no anticoagulant. Conclusions DOAC treatment before the event was associated with smaller infarct volume and decreased risk of greater proximal artery occlusion in acute ischemic stroke patients with non-valvular atrial fibrillation, compared with no anticoagulation.

DOI： 10.1161/JAHA.118.009507

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Insufficient anticoagulant intensity on admission is common in stroke patients with atrial fibrillation (AF) on vitamin K antagonist (VKA) therapy. Nevertheless, the effects of VKA under-treatment on stroke severity or arterial occlusion are not well known. The aim of the present study was to investigate the relationship between insufficient VKA therapy and stroke severity, or the site of arterial occlusion in patients with acute ischemic stroke (AIS) and AF.Methods and Results:From March 2011 through July 2016, 446 consecutive patients with AF and AIS were recruited. Of the 446 patients, 364 (167 women; median age, 79 years; IQR, 71-86 years) with anterior-circulation stroke were assessed to investigate the effects of insufficient VKA. Of these, 281 were on no anticoagulant, 53 were undertreated with a VKA, and 30 were sufficiently treated with VKA on admission (PT-INR ≥2.0 for patients <70 years and PT-INR ≥1.6 for ≥70 years old). On multivariate analysis, insufficient VKA was independently associated with severe stroke (i.e., initial NIHSS score ≥10; OR, 2.70, P=0.022) and higher prevalence of proximal artery occlusion (OR, 1.91; P=0.039) compared with no anticoagulant therapy. CONCLUSIONS: Insufficient VKA therapy on admission was associated with higher severity of stroke and higher prevalence of proximal artery occlusion in patients with AF and acute anterior-circulation stroke compared with no anticoagulant medication.

DOI： 10.1253/circj.CJ-17-1110

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Poststroke infection (PSI) is common and is usually associated with a severe prognosis. We investigated the association between PSI and thyroid hormones, which are critical to immune regulation, in patients with acute stroke. METHODS: We retrospectively enrolled 520 consecutive patients with acute ischemic stroke (326 men; age, 71.9 ± 13.2 years) admitted to our department between September 2014 and June 2016. The impact of serum thyroid hormone levels measured at admission (thyroid-stimulating hormone [TSH], free triiodothyronine [FT3], and free thyroxine [FT4]) on the PSI was evaluated using multivariate logistic regression analysis. RESULTS: We diagnosed 107 patients (20.6%; pneumonia, 65; urinary tract infection, 19; others, 23) with PSIs. While age (P <.001), body mass index (P = .0012), preadmission modified Rankin scale score (P = .0001), National Institutes of Health Stroke Scale score on admission (P <.001), admission FT3 level (P <.001), atrial fibrillation (P <.001), and ischemic heart disease (P = .0451) were significantly associated with PSI, we found no relationship among TSH levels, FT4 levels, and PSI occurrence. After multivariate adjustment, patients with PSIs were more frequently in the Q1 quartile (≤2.25 pg/mL) than in the Q2 (2.26-2.55 pg/mL; P = .0251), Q3 (2.56-2.89 pg/mL; P = .0007), or Q4 (≥2.90 pg/mL; P = .0010) quartiles of FT3 levels. Moreover, low FT3 levels (<2.29 pg/mL) were independently associated with PSI occurrence (P = .0013). CONCLUSIONS: Low FT3 levels at admission are independently associated with PSI occurrence.

DOI： 10.1016/j.jstrokecerebrovasdis.2017.09.012

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Stroke-associated infection (SAI) is a common and serious complication of stroke. This study aimed to assess the effects of SAI on patient mortality and functional outcome at 3 months after stroke onset. We retrospectively analyzed 809 consecutive patients with acute stroke (517 men and 292 women; median age, 72 years) who were admitted to our department between September 2014 and June 2016. SAI was defined as an infection diagnosed during the hospitalization period. Poor outcome was defined as a modified Rankin Scale (mRS) score of 3-5 or death (mRS score of 6). The effect of SAI on functional outcome was evaluated using a multivariate logistic regression analysis. SAI occurred in 169 patients (20.9%); of these, 106 (62.7%) had pneumonia, 23 (13.6%) had a urinary-tract infection, and 40 (23.7%) had other types of infection. Patients with SAI were older, more likely to be female, had lower body mass indices, had higher stroke severity, and were more likely to have atrial fibrillation and a history of ischemic heart disease than patients without SAI. Poor functional outcome and mortality were more common in patients with SAI than in patients without SAI (poor functional outcome 41.8 vs. 4.8%, mortality 24.3 vs. 3.9%, respectively). After adjusting for age, sex, stroke severity, and various comorbidities, SAI was independently associated with poor functional outcome [odds ratio (OR) 6.88; 95% confidence interval (CI) 3.72-12.73] and mortality (OR 4.45, 95% CI 2.27-8.72) at 3 months after stroke onset. Our results suggest that SAI during the hospitalization period is independently associated with 3-month poor functional outcome and mortality.

DOI： 10.1007/s00415-017-8714-6

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Cortical superficial siderosis (cSS) is a pathologic and radiologic diagnosis of hemosiderin deposition in subpial brain layers. However, cSS has not been fully studied in patients with acute stroke. Here, we investigated the prevalence of cSS in patients with acute stroke and analyzed the relationship between cSS and different clinical and neuroimaging characteristics. From September 2014 through June 2016, consecutive patients with acute stroke who were admitted to our department were retrospectively investigated. We analyzed the prevalence of cSS and the associations between cSS and risk factors, the topographic distribution of cerebral microbleeds (CMBs), and the severity of white matter lesions (WMLs). In total, 739 patients (589 patients with ischemic stroke/transient ischemic stroke [IS/TIA] and 150 with intracerebral hemorrhage [ICH]; mean age, 71.4 years) were enrolled. We identified cSS in six (1.0%) patients with IS/TIA and seven (4.7%) patients with ICH. The presence of cSS was associated with ICH (P < 0.0001), WMLs (P = 0.0105), and lobar and non-lobar CMBs (both P < 0.0001); no associations between cSS and age, sex, cardiovascular risk factors, IS subtype classification, or antiplatelet and anticoagulant therapy were found. In a multivariable logistic regression analysis, high numbers of lobar CMBs (≥ 2; odds ratio, 11.03; 95% confidence interval, 2.03-205.40; P = 0.0029) were independently associated with cSS. Furthermore, cSS was often located near lobar CMBs. Our results suggest that cSS is prevalent in ICH and is independently associated with lobar CMBs; however, no associations between cSS and other risk factors or comorbidities were observed.

DOI： 10.1007/s00415-017-8646-1

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記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：WILEY  

Background and purposeAnticoagulant treatment with a vitamin K antagonist (VKA) has been reported to reduce stroke severity when patients with atrial fibrillation (AF) suffer acute ischaemic stroke (AIS). Direct oral anticoagulant (DOAC) therapy also has the potential to reduce the initial severity of AIS. However, the effect of DOAC therapy on the severity of AIS is not well known. The aim of the present study was to investigate the effect of DOACs on initial stroke severity in patients with AIS and non-valvular AF.
MethodsFrom March 2011 to July 2016, consecutive patients with AIS having non-valvular AF were recruited. The effects of prior DOAC treatment on severity were assessed by multivariate logistic regression analyses.
ResultsA total of 484 patients [208 women; median age 79 (interquartile range, 71-85) years; National Institutes of Health Stroke Scale (NIHSS) score 9 (interquartile range, 3-20)] were enrolled. Of these, 352 (73%) were on no anticoagulant medication, 54 (11%) were undertreated with a VKA, 35 (7%) were sufficiently treated (admission prothrombin time-international normalized ratio: 2.0 for patients &lt;70 years old and 1.6 for 70 years old) with a VKA and 43 (9%) were on a DOAC. The initial NIHSS score (median 10 in patients with no anticoagulation, 13 in undertreated VKA, 7 in sufficient VKA and 6 in DOAC, P = 0.018) was different among the groups. Multivariate analysis showed that DOAC was independently and negatively associated with severe (initial NIHSS score 10) stroke (odds ratio, 0.39; P = 0.041), compared with no anticoagulant therapy.
ConclusionsDirect oral anticoagulant treatment prior to the event should reduce initial stroke severity in patients with AIS and non-valvular AF.

DOI： 10.1111/ene.13405

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

A 67-year-old woman developed weakness of the entire left side of the body and disturbance of consciousness, and was admitted to our hospital. She had atrial fibrillation (AF) on arrival at the hospital. Diffusion weighted magnetic resonance imaging showed high intensity area in the right basal ganglia, and magnetic resonance angiography showed occlusion of the right internal carotid artery (ICA). Thrombolytic therapy with intravenous tissue plasminogen activator (IV tPA) was administered 225 minutes after onset, and endovascular procedure also performed. After endovascular therapy, the patient had successful recanalization of the right ICA. Transesophageal echocardiography (TEE) showed a mass in the left atrium. Cardiac surgery for the excision of a left atrial mass and the maze procedure for atrial fibrillation were performed on the 29th hospital day. The mass was pathologically confirmed as thrombus. Follow up TEE after cardiac surgery revealed recurrence of thrombus at the both origin of pulmonary vein in the left atrium. Finally, the thrombus was disappeared at 6-month after onset with taking warfarin. She had no stroke events during the clinical course.

DOI： 10.5692/clinicalneurol.cn-001069

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: The presence of white matter lesions (WML) is an indicator of small vessel disease; however, the underlying pathological mechanisms are still unclear. We aimed to investigate the association of estimated glomerular filtration rate (eGFR) and urinary albumin-to-creatinine ratio (UACR) with WML severity in first-ever stroke patients. METHODS: We retrospectively enrolled 284 consecutive patients (177 male; median age 72years) admitted to our stroke center between May 2010 and January 2012. eGFR and UACR measurements were performed on admission. WML severity was assessed using the Fazekas classification. Severe WML was defined as a Fazekas grade of 2 or higher. The impact of eGFR and UACR on severe WML was evaluated using multiple logistic regression analysis. RESULTS: Age (P<0.0001), sex (P=0.0094), eGFR (P=0.0173), UACR (P=0.0001), hypertension (P=0.0436), and brain natriuretic peptide (P=0.0354) were significantly associated with severe WML. On multivariable logistic regression analysis, high UACR (≥39.6mg/g creatinine, P=0.039), but not low eGFR (≤74ml/min/1.73m2, P=0.3672), was independently associated with severe WML. Comparisons between the UACR levels showed that severe WML was more frequent in the UACR ≥300mg/g creatinine group than in the UACR <30.0mg/g creatinine group after multivariate adjustment (OR, 2.25; 95% CI, 1.04-5.00; P=0.039). However, there was no significant association between eGFR and severe WML. CONCLUSIONS: Our data suggest that high UACR, but not eGFR, is independently associated with severe WML.

DOI： 10.1016/j.jns.2017.01.011

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Thrombus visualization in patients with acute ischemic stroke has been detected and reported using various imaging modalities. T1-weighted imaging (T1-WI) can depict thrombi as hyperintense signals within vessels. Moreover, in addition to thrombi, T1-WI hyperintensities in arteries may suggest arterial dissection. However, the frequency of and factors related to the T1-hyperintense vessel sign (T1-HVS) are not fully known. The aim of this study was to clarify the prevalence of and related factors for the T1-HVS in patients with acute ischemic stroke. METHODS: From September 2014 through December 2015, consecutive acute ischemic stroke patients who were admitted to our stroke unit within 7 days from symptom onset were retrospectively recruited from the prospective registry. A T1-HVS was defined as the presence of a hyperintense signal, with intensity higher than surrounding brain, within the vessel lumen. Moreover, T1-HVSs were separated into filled T1-HVSs (hyperintensity fills whole vessel lumen) and non-filled T1-HVSs. The frequency of the T1-HVS and the timing of emersion and the relationship between the presence of the T1-HVS and arterial occlusion were assessed. RESULTS: A total of 399 patients (139 women; median age 73 years; National Institutes of Health Stroke Scale score 3) were enrolled in the present study. Of these, 327 (82%) patients had T1-WI on admission. Two hundred and sixty-seven (67%) subjects had at least one follow-up T1-WI (median 6 days after admission), and 134 (34%) cases had ≥2 follow-up T1-WI examinations. The T1-HVS was observed in 18 patients during admission; therefore, the frequency of the T1-HVS in acute ischemic stroke patients was 4.5% (95% CI 2.5-6.5%). All but one (94%) of the T1-HVSs were first observed on follow-up imaging, and the median number of days from onset to T1-HVS appearance was 9. For patients having initial major artery occlusion and follow-up MRI (n = 95), sensitivity and specificity of the T1-HVS for persistent arterial occlusion on follow-up MR angiography were 22 and 100%, respectively. T1-HVS persisted for a few months and then normalized. Although there were no significant differences between filled and non-filled T1-HVS, more patients with non-filled T1-HVS had arterial dissection (43%) than those with filled T1-HVS (9%, p = 0.245). CONCLUSION: The T1-HVS was observed in 4.5% of acute ischemic stroke patients. T1-HVSs appeared in the subacute phase in arteries with persistent occlusion and remained for a few months.

DOI： 10.1159/000479593

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND AND PURPOSE: The aim of this study was to investigate the association of admission serum thyroid hormone concentration with clinical characteristics and functional outcomes in patients after acute ischemic stroke. METHODS: We retrospectively enrolled 398 consecutive patients admitted to our stroke center between July 2010 and April 2012. Serum thyroid stimulating hormone (TSH), free triiodothyronine (FT3), and free thyroxine (FT4) were evaluated upon admission. Neurological severity was evaluated using the National Institutes of Health Stroke Scale (NIHSS) upon admission and the modified Rankin Scale (mRS) upon discharge. Poor outcome was defined as a mRS score of 3-5 or death (mRS score 6). Separate analyses were conducted according to outcome and quartile serum FT3 concentration. RESULTS: In total, 164 patients (41.2%) demonstrated a poor outcome. Age, male gender, blood glucose level, arterial fibrillation, dyslipidemia, smoking, NIHSS score, cardioembolic stroke type, and periventricular hyperintensities, but not FT4 or TSH, were significantly associated with poor functional outcome. Furthermore, poor functional outcome was independently associated with low FT3 (<2.29pg/mL). In comparisons between FT3 quartiles (Q1 [≤2.11pg/mL], Q2 [2.12-2.45pg/mL], Q3 [2.46-2.77pg/mL], Q4 [≥2.78pg/mL]), patients with poor outcomes were more frequent in Q1 than in Q4 after multivariate adjustment. Death was more frequent in Q1 than in Q4 after adjustment for risk factors and comorbidities, but this difference was non-significant after additional adjustment for age and NIHSS score. CONCLUSIONS: Our data suggest that a lower FT3 value upon admission may predict a poor functional outcome in patients with acute ischemic stroke. Further large-scale prospective studies are required to clarify the role of thyroid hormone in the acute phase of ischemic stroke.

DOI： 10.1016/j.jns.2016.06.063

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: The aim of the present study was to clarify the effect of glucose profiles after stroke, which was assessed by a continuous glucose monitoring (CGM) device. METHODS: Acute ischemic stroke patients within 24 h of onset were prospectively studied. CGM was performed for 72 h after admission. CGM parameters were evaluated as follows: (1) mean glucose level, (2) area under the curve (AUC) for glucose level >140 mg/dl and (3) SD of the glucose level. Infarct volume was measured at admission and 24 and 72 h after admission using diffusion-weighted imaging. CGM data and infarct volume growth were compared at 24 and 72 h. RESULTS: Seventy-eight patients were enrolled in the present study. Spearman's rank correlation coefficients showed that both the mean glucose level (r = 0.433, p < 0.001 for 24 h; r = 0.308, p = 0.006 for 72 h) and AUC >140 mg/dl (r = 0.417, p < 0.001 for 24 h; r = 0.277, p = 0.014 for 72 h) were significantly correlated with acute infarct volume growth. The SD of the glucose level was associated with infarct volume growth at 24 h (r = 0.303, p = 0.007), but not 72 h (r = 0.195, p = 0.088). CONCLUSION: Post-stroke hyperglycemia was associated with infarct volume growth during the acute phase of ischemic stroke.

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記述言語：英語  

DOI： 10.1016/j.jns.2014.10.019

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND AND PURPOSE: The aim of the present study was to devise a simple grading scale for assessing the risk of development of malignant MCA infarction (MMI). METHODS: Using MRI, patients with MCA infarction and proximal vessel occlusion (ICA or M1) within 24h of onset were retrospectively studied. MMI was defined as clinical deterioration, midline shift ≥ 5 mm, or brain herniation within 48 h of admission. We evaluated clinical factors independently associated with MMI and created a simple score according to the multivariate logistic regression analysis. RESULTS: Subjects comprised 119 patients, 57 of which (47.9%) developed MMI. Multivariate logistic regression analysis revealed the following independent factors associated with MMI: DWI ASPECTS ≤ 3 [odds ratio (OR), 4.16; 95% CI, 1.36-12.66, P=0.012], ACA territory involvement [OR, 6.90; 95% confidence interval [CI], 2.06-23.10, P=0.002], M1 susceptibility vessel sign (SVS) on T2*-gradient echo [OR, 4.55; 95% CI, 1.38-14.98, P=0.013], and hyperglycemia (glucose value ≥ 145 mg/dl) [OR, 5.31; 95% CI, 1.80-15.68, P=0.002]. These four variables were selected for use in the DASH score, with DWI ASPECTS ≤ 3 as 1 point, ACA territory involvement as 1 point, M1 SVS as 1 point, and hyperglycemia as 1 point. The likelihood of developing MMI for each score was as follows: score 0, 9.1%; score 1, 20.5%; score 2, 63.0%; score 3-4, 96.8%. The C statistic for the score was 0.88 (95% CI, 0.82-0.94, P<0.001). CONCLUSION: Our DASH score reliably assessed a risk for development of MMI in large MCA infarctions.

DOI： 10.1016/j.jns.2013.12.024

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND AND PURPOSE: Hyperglycemia is recognized as a common occurrence associated with a high risk of poor outcome in ischaemic stroke patients. However, little is known about the association between elevated glucose level, growth of infarct volume and neurological deterioration in ischaemic stroke patients without diabetes. The present study aimed to clarify this issue in acute ischaemic stroke patients with arterial occlusion. METHODS: We studied 375 acute ischaemic stroke patients with arterial occlusion within 24 h of onset. Diabetes was diagnosed in patients with a known history of diabetes or HbA1c value ≥ 6.5%. Infarct volume was measured on admission and at follow-up within 48 h using diffusion-weighted imaging. Neurological deterioration was defined as an increase of ≥ 4 points in National Institutes of Health Stroke Scale score within 7 days of stroke onset. We examined the relationship between glucose level on admission, infarct volume growth and neurological deterioration in three categories (all patients, non-diabetes and diabetes) using multivariate modeling. RESULTS: Diabetes was present in 104 patients (27.7%). Multivariate regression analysis showed that elevated glucose level was independently associated with infarct volume growth in all patients (P = 0.034) and non-diabetes (P = 0.002), but not in diabetes (P = 0.871). Moreover, elevated glucose level was independently associated with neurological deterioration in all patients [odds ratio (OR), 1.010; 95% confidence interval (CI), 1.004-1.017; P = 0.002] and non-diabetes (OR, 1.014; 95% CI, 1.002-1.026; P = 0.022), but not diabetes (OR, 1.006; 95% CI, 0.998-1.014; P = 0.151). CONCLUSIONS: Glucose level appears to influence infarct volume growth and neurological deterioration, particularly in non-diabetic patients with ischaemic stroke.

DOI： 10.1111/ene.12280

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: Precise associations between clinical characteristics of transient ischemic attack (TIA) patients and diffusion-weighted imaging (DWI) positivity are still controversial. Thus, the purposes of this were to investigate the clinical characteristics associated with DWI positivity in patients with TIA and to develop a risk score for the prediction of DWI positivity in TIA. METHODS: Between April 2008 and June 2011, we retrospectively enrolled consecutive patients, who were admitted to our hospital with TIA and underwent DWI within 24 hours of admission. Patients were divided into a DWI-positive or DWI-negative group. The clinical characteristics of the 2 groups were compared, and a DWI positivity score was determined for each patient. We calculated the DWI positivity score by assigning a point value of 1 to the following factors: blood urea nitrogen to serum creatinine (BUN/Cr) ratio greater than 17.5, glucose greater than 161 mg/dL, and brain natriuretic peptide (BNP) greater than 55.4 pg/dL. Values below these cutoffs were given a value of 0, and the 3 point values were summed to obtain the final DWI positivity score (from 0 to 3). RESULTS: A total of 41 patients (median age = 62 years; 8 women) were enrolled in this study. There were 14 (35%) patients with DWI positivity. The median of the BUN/Cr ratio, blood glucose, and BNP were significantly higher in the DWI-positive than that in the DWI-negative group. As the DWI positivity score increased, there was an increased rate of DWI positivity. CONCLUSIONS: Our data indicate that seminal scores that included BUN/Cr ratio, glucose, and BNP contributed to DWI positivity in TIA patients.

DOI： 10.1016/j.jstrokecerebrovasdis.2013.09.002

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND AND PURPOSE: Hyperglycemia (HG) is associated with infarct volume expansion in acute ischaemic stroke patients. However, collateral circulation can sustain the ischaemic penumbra and limit the growth of infarct volume. The aim of this study was to determine whether the association between HG and infarct volume expansion is dependent on collateral circulation. METHODS: We performed a retrospective analysis of 93 acute ischaemic stroke patients with internal carotid artery or middle cerebral artery occlusion within 24 h of onset were retrospectively studied. HG was diagnosed in patients with an admitting blood glucose value ≥140 mg/dl. Angiographic collateral grade 0-1 was designated as poor collateral circulation and grade 2-4 as good collateral circulation. Infarct volume was measured at admission and at again within 7 days using diffusion-weighted magnetic resonance images. RESULTS: Among 34 patients with poor collateral grade, the change in infarct volume was significantly greater in the HG group than in the non-HG group (106.0 ml vs. 22.7 ml, P = 0.002). Among the 59 patients with good collateral circulation, the change in infarct volume was greater in the HG group than in the non-HG group (53.3 ml vs. 10.9 ml, P = 0.047). Multiple regression analysis indicated that admission HG (P = 0.004), baseline National Institutes of Health Stroke Scale score (P = 0.018), and poor collateral circulation (P = 0.040) were independently associated with infarct volume expansion. CONCLUSIONS: Infarct volume expansion was greater in individuals with HG on admission regardless of collateral circulation status.

DOI： 10.1111/j.1468-1331.2012.03801.x

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND: It is unknown whether the clinical features and outcomes of intracerebral hemorrhage (ICH) patients who undergo maintenance hemodialysis (HD) at the time of ICH are similar to those of general ICH patients. METHODS: We retrospectively examined the medical records of ICH patients admitted to the Stroke Center of Kawasaki Medical School Hospital within 7 days of ICH onset between April 2004 and June 2011. Patients were classed as HD or non-HD, and clinical characteristics were compared between the two groups. ICH volume was measured on admission CT and follow-up CT scan (< 24 h after admission). Hematoma enlargement was defined as a hematoma that increased by more than 33% of its initial volume. Early death was defined as all-cause death within 14 days of ICH onset. The factors associated with early death were determined using multivariate logistic regression analysis. RESULTS: Five hundred and seven patients (320 males; 69.0 years old, interquartile range 59.0-79.0) were enrolled in the study. Thirty-six (7.2%) were receiving maintenance HD at the time of ICH and formed the HD group, and the remaining 471 patients formed the non-HD group. Use of antithrombotic agents prior to ICH was more common in the HD group than in the non-HD group (41.7 vs. 21.9%; p = 0.012). Brainstem (30.6 vs. 11.3%; p = 0.003) and lobar (19.4 vs. 6.6%; p = 0.013) hematoma locations were more common in the HD group than in the non-HD group. Enlargement of ICH volume was more common in the HD group than in the non-HD group (25.8 vs. 10.2%; p = 0.015). Early death was more common in the HD group than in the non-HD group (33.3 vs. 9.3%; p < 0.001). On the multivariate logistic regression analysis adjusted for age, sex and renal dysfunction, National Institutes of Health Stroke Scale score > 20 [odds ratio (OR) 27.40, 95% confidence interval (CI) 9.69-77.44; p < 0.001], ICH volume > 30 ml (OR 9.53, 95% CI 3.82-23.77; p < 0.001), HD (OR 6.42, 95% CI 1.39-29.76; p = 0.017), the use of antithrombotic agents (OR 3.04, 95% CI 1.22-7.56; p = 0.017) and glucose > 150 mg/dl (OR 2.51, 95% CI 1.01-6.26; p = 0.047) were independent factors associated with early death. CONCLUSION: Maintenance HD is independently associated with early death in ICH patients.

DOI： 10.1159/000351504

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

Cerebral microbleeds (CMBs) are recognized as a manifestation of arteriolosclerosis in cerebral small vessels. However, little is known regarding whether stroke patients with CMBs often have systemic atherosclerosis. The aim of the present study was to elucidate this issue using the cardio-ankle vascular index (CAVI), a new index of systemic atherosclerosis, in acute ischemic stroke patients. We prospectively studied 105 patients (71 males, median age=70.0 years) with acute ischemic stroke. All of the patients were examined using T2*-weighted gradient echo magnetic resonance imaging (MRI) to look for and assess the CMBs and using fluid-attenuated inversion recovery to evaluate white matter hyperintensity (WMH). We assigned the patients into CMB and non-CMB groups and compared the clinical characteristics of these groups. The factors associated with CMBs were investigated using multivariate logistic regression analysis. T2*-weighted gradient echo MRI revealed CMBs in 47 patients (44.8%) and no CMBs in 58 patients (55.2%). The CAVI was significantly higher in the CMBs group (10.5 vs. 8.6, P<0.001). In the multivariate logistic regression analysis, CAVI per one point increase (odds ratio (OR), 1.50; 95% confidence interval (CI), 1.12-2.00; P=0.006), advanced WMH (OR, 4.78; 95% CI, 1.55-14.74; P=0.006) and impaired kidney function (OR, 3.31; 95% CI, 1.16-9.81; P=0.031) were independent factors associated with the presence of CMBs. A high CAVI was independently associated with CMBs in patients with acute ischemic stroke. Our results indicated that ischemic stroke patients with CMBs may have cerebral arteriolosclerosis as well as systemic atherosclerosis.

DOI： 10.1038/hr.2012.84

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

BACKGROUND AND PURPOSE: Spontaneous intra-cranial arterial dissection (SICAD) without history of head and neck injury is now recognized as an important cause of stroke. However, the frequency of SICAD involving the anterior cerebral artery (ACA), middle cerebral artery (MCA), and posterior cerebral artery (PCA) territories remains unclear. This study therefore investigated the distribution of SICAD. METHODS: Subjects comprised 194 patients (126 men, 68 women; median age, 68.0 years) with infarct isolated to the ACA, MCA or PCA territories who underwent conventional angiography. Diagnosis of SICAD was based on clinical and neuroradiological findings. Frequency of SICAD was compared among ACA, MCA, and PCA infarcts. All patients were divided into SICAD and non-SICAD groups, and clinical characteristics were compared between groups. RESULTS: Infarcts involved the ACA in 14 cases (7.2%), MCA in 165 cases (85.1%), and PCA in 15 cases (7.7%). SICAD was diagnosed in 17 of 194 cases (8.8%), with cerebral angiography showing main findings of the string sign in 11 patients (64.7%), the pearl and string sign in 6 patients (35.3%), and pseudoaneurysm formation in 2 patients (11.7%). SICAD most frequently involved the ACA (ACA, 64.3%; MCA, 4.2%; PCA, 6.7%; P<0.001). CONCLUSION: SICAD was seen in 64.3% of patients with ACA infarct. The mechanisms of ACA infarction may thus differ from those of MCA and PCA infarction.

DOI： 10.1016/j.jns.2011.02.021

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記述言語：日本語   掲載種別：研究論文（学術雑誌）  

We report here in a 61-year-old woman in whom sensory disturbance predominantly affecting the distal portion of the limbs progressed over the course of 1 year. Blood tests showed IgM monoclonal gammopathy as well as the presence of anti-myelin-associated glycoprotein (MAG) antibody. Nerve conduction studies revealed significant prolongation of distal latency, and sural nerve biopsy showed IgM deposition on the myelin sheath. She was diagnosed as suffering anti-MAG neuropathy. High-dose intravenous immunoglobulin therapy proved to be ineffective and her symptoms progressed. Therefore, rituximab was administered and the sensory disturbance improved. Although no detailed studies on rituximab therapy for anti-MAG neuropathy have been reported in Japan, the present findings suggest that rituximab may be more effective than immunoglobulin therapy and other conventional therapies that have been used for autoimmune neuropathies.

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記述言語：英語   掲載種別：研究論文（学術雑誌）  

We report a patient with uncontrolled Crohn's disease who presented with progressive weakness of proximal muscles and a marked elevation of serum creatine kinase. Muscle biopsy from the left deltoid exhibited myositic changes with inflammatory infiltrates in the perimysium, endomysium, and perivascular locations. Most were stained as CD68-positive macrophages, whereas some were CD4- and CD8-positive T lymphocytes. Due to uncontrolled bowel inflammation, several fistulae were found in the descending colon, and partial colectomy was performed. An examination of the resected colon exhibited inflammation of the bowel structure surrounded mainly by CD68-positive macrophages. The histopathological findings of the descending colon were analogous to those of the muscle. After an increased dose of mesalazine and partial colectomy, her muscle symptoms improved. These findings suggest that the myositis in Crohn's disease is immune-mediated and that treatment of bowel inflammation should be emphasized as opposed to steroid or other immunosuppressive therapy.

DOI： 10.1002/mus.21164

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：WILEY  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

DOI： 10.1161/str.52.suppl_1.P401

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：日本医科大学医学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：WILEY  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：WILEY  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：日本語   出版者・発行元：(一社)日本頭痛学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：Movement Disorder Society of Japan (MDSJ)  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本脳循環代謝学会  

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記述言語：日本語   出版者・発行元：(一社)日本脳神経超音波学会  

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記述言語：日本語   出版者・発行元：(一社)日本脳神経超音波学会  

J-GLOBAL

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記述言語：日本語   出版者・発行元：(一社)日本脳神経超音波学会  

J-GLOBAL

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記述言語：日本語   出版者・発行元：(一社)日本脳神経超音波学会  

J-GLOBAL

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：日本語   出版者・発行元：東京慈恵会医科大学附属柏病院  

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記述言語：日本語   出版者・発行元：(一社)日本脳循環代謝学会  

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記述言語：日本語   出版者・発行元：(一社)日本脳循環代謝学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

症例は67歳の女性。意識障害と左片麻痺で発症し、頭部MRI及びMRA所見から右内頸動脈閉塞症による脳梗塞と診断した。心電図で心房細動があり、発症225分で経静脈的血栓溶解療法を開始し、脳血管内治療を併用し発症から275分で再開通を得た。第3病日の経食道心臓超音波検査(transesophageal echocardiography;TEE)で左房内に腫瘤を認め、第29病日に左房内腫瘤摘出術と心房細動に対してメイズ手術を施行し、摘出した腫瘤は病理学的に血栓であった。術後のTEEで、メイズ手術で焼灼した左房内肺静脈起始部に血栓を認めた。ワルファリンによる抗凝固療法を6ヵ月間継続し、脳梗塞の再発はなく、最終的に血栓は消失した。(著者抄録)

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その他リンク： https://search.jamas.or.jp/default/link?pub_year=2017&ichushi_jid=J01550&link_issn=&doc_id=20171109390006&doc_link_id=1390001205038678656&url=https%3A%2F%2Fcir.nii.ac.jp%2Fcrid%2F1390001205038678656&type=CiNii&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00003_3.gif

記述言語：日本語   出版者・発行元：(一社)日本脳神経超音波学会  

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記述言語：日本語   出版者・発行元：日本内科学会-関東地方会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：日本語   出版者・発行元：日本嚥下医学会  

筋萎縮性側索硬化症(ALS)は呼吸障害から経皮内視鏡的胃瘻造設術(PEG)が時に困難となる。2010年から当院では呼吸障害例に対して非侵襲的陽圧換気療法(NPPV)下でのPEG(N-PEG)を導入している。目的:N-PEGの有効性を検討する。対象と方法:2004年から2015年に当院でPEGを施行し、経過中に気管切開術や侵襲的陽圧換気療法を施行していないALSの31例を対象とした。2009年以前にPEGを施行したNPPV導入前群(前群)7例と2010年以後のNPPV導入後群(後群)24例にわけ、年齢、性別、PEGの施行時期、呼吸リスク、早期死亡について後方視的に検討した。後群ではPEG後の生存期間や摂食状況のレベル(FILS)も検討した。結果:後群24例中4例でN-PEGを施行していた。年齢の中央値は前群62.3歳、後群70.2歳で有意差を認めた。性別、施行時期、呼吸リスクは両群で差がなかった。早期死亡は前群で2例だが後群にはなく、有意差を認めた。後群でPEG後の平均生存期間は9.8ヵ月だった。FILSの中央値はPEG時に7.1が6ヵ月後は2.5であった。結論:N-PEGの導入によりPEG後の早期死亡は明らかに減少した。呼吸障害が進行したALSに対してN-PEGは有用な方法と思われた。(著者抄録)

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その他リンク： https://search.jamas.or.jp/default/link?pub_year=2017&ichushi_jid=J05944&link_issn=&doc_id=20170210130011&doc_link_id=%2Feg1engei%2F2017%2F000601%2F003%2F0086-0091%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Feg1engei%2F2017%2F000601%2F003%2F0086-0091%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：日本脳循環代謝学会  

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記述言語：日本語   出版者・発行元：(一社)日本脳循環代謝学会  

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記述言語：日本語   出版者・発行元：(一社)日本頭痛学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：日本内科学会-関東地方会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：日本内科学会-関東地方会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

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記述言語：日本語   出版者・発行元：(株)診断と治療社  

＜Headline＞1 経静脈的血栓溶解療法や脳血管内治療(早期再灌流療法)を行うために、早期虚血性変化と血管病変の評価が必須である。2 早期虚血性変化の判定にはMRI拡散強調画像が有用であり、血管病変の判定にはMR angiography、CT angiography、頸部血管超音波検査を用いる。3 灌流画像による虚血ペナンブラ領域の評価は、治療効果が期待できる患者を判定する一助となりうる。また、MRI所見から発症時刻を推測することも可能である。4 近年は、高磁場MRI(3-7tesla)を用いた新たな試みも行われている。(著者抄録)

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その他リンク： https://search.jamas.or.jp/default/link?pub_year=2015&ichushi_jid=J00697&link_issn=&doc_id=20150121130005&doc_link_id=%2Fae4digta%2F2015%2F010301%2F007%2F0037-0042%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fae4digta%2F2015%2F010301%2F007%2F0037-0042%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：東京慈恵会医科大学成医会  

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その他リンク： https://search.jamas.or.jp/default/link?pub_year=2014&ichushi_jid=J00884&link_issn=&doc_id=20150212040030&doc_link_id=%2Fcz8jikei%2F2014%2F012906%2F030%2F0217-0217%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Fcz8jikei%2F2014%2F012906%2F030%2F0217-0217%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：日本語   出版者・発行元：(株)日本臨床社  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

DOI： 10.5692/clinicalneurol.54.70

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

DOI： 10.5692/clinicalneurol.54.403

Scopus

PubMed

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：日本嚥下医学会  

症例は87歳の女性。2008年10月に自発性が低下した。症状は急速に進行して整容や排泄は介助となった。11月にミオクローヌスが出現し、脳波で周期性同期性放電を認めた。プリオン蛋白遺伝子解析ではcodon232の変異を認め、クロイツフェルト・ヤコブ病(CJD)と診断した。自発性低下から経口摂取が困難になったが、胃瘻は作成せずに経鼻経管栄養とした。2009年3月に吸気時喘鳴が出現し、内視鏡用感染防止シースを用いて喉頭内視鏡で観察したところ両側声帯外転障害を認めた。気管切開はせず、呼吸状態が悪化して4月に永眠された。剖検では食道入口部に経鼻胃管による潰瘍を認めた。一方、CJDによる疑核の変性は乏しく声帯外転障害の主因はnasogastric tube syndrome(NTS)と考えられた。CJDでは経鼻経管栄養を長期に施行することが多く、NTSに注意が必要である。(著者抄録)

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その他リンク： https://search.jamas.or.jp/default/link?pub_year=2013&ichushi_jid=J05944&link_issn=&doc_id=20130227190010&doc_link_id=%2Feg1engei%2F2013%2F000201%2F012%2F0069-0075%26dl%3D0&url=https%3A%2F%2Fwww.medicalonline.jp%2Fjamas.php%3FGoodsID%3D%2Feg1engei%2F2013%2F000201%2F012%2F0069-0075%26dl%3D0&type=MedicalOnline&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00004_2.gif

記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：KARGER  

Web of Science

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)東京内科医会  

経静脈的血栓溶解療法(t-PA)を施行した急性期脳梗塞患者16例のうち、投与前に画像検査で主幹動脈閉塞を確認できた9例(男4例・女5例・41～93歳)について検討した。閉塞血管は内頸動脈1例、中大脳動脈5例、前大脳動脈1例、椎骨動脈1例、脳底動脈1例であった。9例中6例で急性期の再開通現象を認め、この6例中4例は退院時modified Rankin Scale(mRS)が0～1、他の1例は2、残り1例は5で、mRS 5の症例はt-PA投与前のMRI所見で梗塞巣が広範であり治療効果が得られなかった。再開通を認めなかった3例の閉塞血管はそれぞれ内頸動脈、中大脳動脈、脳底動脈で、いずれも治療効果はなく退院時mRSは5であった。なお、t-PA投与7日以内に症候性頭蓋内出血を認めた症例はなかった。

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記述言語：日本語   出版者・発行元：日本末梢神経学会  

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記述言語：日本語   出版者・発行元：耳鼻と臨床会  

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記述言語：日本語   出版者・発行元：東京慈恵会医科大学成医会  

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その他リンク： https://search.jamas.or.jp/default/link?pub_year=2010&ichushi_jid=J00884&link_issn=&doc_id=20110203080004&doc_link_id=http%3A%2F%2Fhdl.handle.net%2F10328%2F6480&url=http%3A%2F%2Fhdl.handle.net%2F10328%2F6480&type=%E6%9D%B1%E4%BA%AC%E6%85%88%E6%81%B5%E4%BC%9A%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%9D%B1%E4%BA%AC%E6%85%88%E6%81%B5%E4%BC%9A%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6_%E5%AD%A6%E8%A1%93%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80093_3.gif

記述言語：日本語   出版者・発行元：(一社)日本脳神経超音波学会  

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記述言語：日本語   出版者・発行元：(一社)日本脳神経超音波学会  

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記述言語：日本語   出版者・発行元：(公社)日本リハビリテーション医学会  

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記述言語：日本語   出版者・発行元：(公社)日本リハビリテーション医学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：東京慈恵会医科大学成医会  

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その他リンク： https://search.jamas.or.jp/default/link?pub_year=2009&ichushi_jid=J00884&link_issn=&doc_id=20100329080049&doc_link_id=http%3A%2F%2Fhdl.handle.net%2F10328%2F5386&url=http%3A%2F%2Fhdl.handle.net%2F10328%2F5386&type=%E6%9D%B1%E4%BA%AC%E6%85%88%E6%81%B5%E4%BC%9A%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6%EF%BC%9A%E6%9D%B1%E4%BA%AC%E6%85%88%E6%81%B5%E4%BC%9A%E5%8C%BB%E7%A7%91%E5%A4%A7%E5%AD%A6_%E5%AD%A6%E8%A1%93%E3%83%AA%E3%83%9D%E3%82%B8%E3%83%88%E3%83%AA&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F80093_3.gif

記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：英語   掲載種別：研究発表ペーパー・要旨（国際会議）   出版者・発行元：LIPPINCOTT WILLIAMS & WILKINS  

Web of Science

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記述言語：日本語   出版者・発行元：耳鼻と臨床会  

症例は37歳、男性。右側難聴が出現し、突発性難聴の診断で副腎皮質ステロイドを内服した。難聴は改善したのでステロイドを中止したが、左動眼神経、両側三叉神経、両側舌咽迷走神経障害が約10日間で急速に進行した。頭部MRIは正常で、髄液蛋白が上昇し、急激な経過からギラン・バレー症候群を疑い、大量ガンマグロブリン療法を施行した。しかし、症状が進行したのでステロイド治療を追加したところ、多発脳神経障害は改善傾向となった。その後、ツベルクリン反応陰性、肺門部・涙腺・耳下腺のガリウムシンチ集積像陽性、気管支肺胞洗浄液の総細胞数とリンパ球増加・CD4/8比上昇からサルコイドーシスと診断した。一連の症状は難聴も含めサルコイドーシスによるもので、ステロイドの早期中止がその後の多発脳神経障害を引き起こしたと考えられた。サルコイドーシスによる脳神経障害は時に症状の進行が早く、ギラン・バレー症候群と鑑別を要することがある。(著者抄録)

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その他リンク： https://search.jamas.or.jp/default/link?pub_year=2008&ichushi_jid=J00581&link_issn=&doc_id=20090107230012&doc_link_id=10.11334%2Fjibi1954.54.6Supplement2_S157&url=https%3A%2F%2Fdoi.org%2F10.11334%2Fjibi1954.54.6Supplement2_S157&type=J-STAGE&icon=https%3A%2F%2Fjk04.jamas.or.jp%2Ficon%2F00007_3.gif

記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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記述言語：日本語   出版者・発行元：(一社)日本神経学会  

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