Abstract:
BACKGROUND AND PURPOSE:Cerebral small vessel disease reflected by white matter lesions (WMLs) in MRI and kidney function reflected by estimated glomerular filtration rate (eGFR) is closely associated in patients without stroke. We studied whether eGFR and WMLs predict long-term survival in patients with acute stroke. METHODS:After exclusion of patients with low eGFR (N=5 [1.3%]; <30 mL/min/1.73 m(2)), consecutive patients with acute stroke (N=378) subjected to MRI and serum creatinine determination were included in the study and prospectively followed-up up to 12 years. RESULTS:Of the patients, 71.2% had died during the follow-up, 152 (40.2%) had moderate (eGFR <60 mL/min/1.73 m(2)), and 226 (59.8%) had normal or mildly impaired eGFR (>or=60 mL/min/1.73 m(2)). Of the patients, 108 (28.6%) had mild, 68 (18.0%) had moderate, and 202 (53.4%) had severe WMLs. In logistic regression analysis adjusted with age and sex, eGFR <60 mL/min/1.73 m(2) was associated with severe WMLs (relative risk 2.77, 95% CI 1.10 to 6.98, P=0.030). In Cox regression survival analysis adjusted with significant covariates, eGFR <60 mL/min/1.73 m(2) (1.30, 95% CI 1.00 to 1.68, P=0.047) and severe WMLs (hazard ratio 1.32, 95% CI 1.02 to 1.71, P=0.033) were associated with poor survival, whereas they were not independent from each other. In further analyses, presence of either eGFR >or=60 mL/min/1.73 m(2) or only mild to moderate WMLs, or both, was associated with improved survival compared with all other combinations. CONCLUSIONS:Cerebral small vessel disease is closely associated with kidney function in patients with acute stroke. Cerebral small vessel disease and kidney function are closely associated predictors of poor poststroke survival.
journal_name
Strokejournal_title
Strokeauthors
Oksala NK,Salonen T,Strandberg T,Oksala A,Pohjasvaara T,Kaste M,Karhunen PJ,Erkinjuntti Tdoi
10.1161/STROKEAHA.110.587352subject
Has Abstractpub_date
2010-09-01 00:00:00pages
1914-20issue
9eissn
0039-2499issn
1524-4628pii
STROKEAHA.110.587352journal_volume
41pub_type
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