The cutoff score of the baseline NIH Stroke Scale (NIHSS) for a favorable chronic outcome was relatively low in patients with PC stroke compared to patients with AC stroke. The NIHSS appears to have limitations with respect to its use when comparing the neurologic severity of PC and AC stroke.
Background and Purpose-To evaluate the current status of care and cost of acute ischemic stroke in Japan, we performed a hospital-based analysis at a tertiary emergency hospital with a 24-hour neurology-neurosurgery team and care unit. Methods-During the 12-month period of October 2000 to September 2001, we collected data on 179 patients consecutively hospitalized with acute ischemic stroke within 7 days of onset. We examined demographic data, in-hospital care, length of hospital stay, outcome at discharge, and hospital costs. The medical cost data were collected from official hospital medical cost charts, which calculated direct medical costs for beds, staff, examinations, medications, and rehabilitation. Results-The mean age was 70 years, and 69% were male. Hospital arrival was within 3 hours of onset in 30% of the patients. A history of stroke was present in 37%. The mean initial National Institutes of Health Stroke Scale score was 8.3 points (median, 6 points). Using the Trial of Org 10172 in Acute Stroke Treatment classification, 25% were lacunar, 27% were atherothrombotic, 33% were cardioembolic, and 15% were of unknown origin. All patients underwent neuroimaging studies during hospitalization; 96% and 92% underwent CT and MRI with MR angiography, respectively. Antithrombotic medications were given in 94%, none of whom received thrombolysis. A newly licensed neuroprotective agent, edaravone, was given in 16%. More than half of the patients (55%) were initially admitted to the neurological intensive care unit. Overall, 64% received in-hospital rehabilitation. Mean length of stay was 33 days. In-hospital mortality rate was 3%. On the modified Rankin Scale (mRS), 63% were independent (mRS, 0 to 2) and 34% were dependent (mRS, 3 to 5) at discharge. Two thirds of the patients (65%) went directly back home. The mean hospital cost per patient was $6887 ($209/d), of which 69% was attributable to the costs for beds and staff, 12% for medications, 7% for rehabilitation, 6% for imaging studies, 5% for laboratory examinations, and 1% for other costs. Conclusions-Despite the single hospital-based analysis, this study provided current, precise data on short-term inpatient care and costs of acute ischemic stroke in Japan. Because stroke often carries a permanent dependence, long-term cost-effective stroke care should be established.
Background and Purpose-The purpose of this study was to clarify whether the relevant risk factors for silent cerebral infarcts (SCIs) in subcortical white matter (WM) are different from those in the basal ganglia (BG). Methods-Subjects of this study were 219 adults without a history of stroke or transient ischemic attack and without any abnormality on a neurological examination who consecutively visited the neurology service in our hospital between January 1994 and November 1997 requesting medical evaluation for possible cerebrovascular diseases. Subjects included 141 men and 78 women ranging in age from 33 to 83 years (meanϮSD, 63.2Ϯ9.5 years). We performed brain MRIs and cervical/cranial MR angiographies on all subjects. In this study, SCI was defined as a focal lesion Ͼ5 mm in diameter that was prolonged on both T2-weighted and proton density images. Results-SCIs in the WM and/or BG were detected in 88 (40.2%) of the 219 subjects. No SCI Ͼ15 mm was observed in this series. Fifty of the subjects had SCIs only in the WM, 32 subjects had SCIs in both the WM and BG, and 6 subjects had SCIs only in the BG. Thus, 82 (93.2%) of 88 subjects with SCIs had lesions in the WM. Most subjects with SCIs in the BG also had SCIs in the WM. Multiple logistic regression analyses revealed that age, female sex, and hypertension were significant and independent predictors of SCIs in the WM, and that age, a history of ischemic heart disease, and carotid artery stenosis were significant and independent predictors of SCIs in the BG. Conclusions-The present study indicated that the relevant risk factors for SCIs in the WM and those for SCI in the BG were different. Our results suggest that SCIs are prone to first appear in the WM in association with aging and hypertension, and the additional appearance of SCIs in the BG predicts a progression of generalized atherosclerosis that is manifested in the carotid and coronary arteries. (Stroke. 1999;30:378-382.)
Our data suggest that asymptomatic occlusive lesions in the carotid and intracranial arteries are fairly common in Japanese patients with IHD, although the degree of stenosis is relatively mild. Coexistence of carotid atherosclerosis should be suspected in IHD patients with severe coronary atherosclerosis, and the possibility of atherosclerosis in the intracranial arteries should be considered in aged IHD patients.
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