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  • Title: Is prestroke use of angiotensin-converting enzyme inhibitors associated with better outcome?
    Author: Chitravas N, Dewey HM, Nicol MB, Harding DL, Pearce DC, Thrift AG.
    Journal: Neurology; 2007 May 15; 68(20):1687-93. PubMed ID: 17502550.
    Abstract:
    BACKGROUND: There is evidence that angiotensin-converting enzyme inhibitors (ACEIs) reduce the risk of stroke. However, it is unclear whether ACEI use before stroke provides a vasoprotective effect resulting in less severe stroke. METHODS: We ascertained all strokes occurring in a defined population in Melbourne, Australia. Prestroke use of ACEIs and concomitant medications was obtained from medical records. Initial neurologic deficit was dichotomized according to a NIH Stroke Scale (NIHSS) score < 8 (less severe deficit) or > or = 8 (severe deficit). Logistic regression was used to assess the association between prestroke use of ACEIs and stroke severity (measured by severity of neurologic deficits and death at 28 days). RESULTS: Seven hundred sixteen first-ever ischemic stroke patients were included. Previous use of ACEIs was independently associated with a reduced risk of severe neurologic deficits (odds ratio [OR] 0.56; 95% CI 0.35 to 0.91) and death within 28 days (OR 0.46; 95% CI 0.24 to 0.87). Diuretics were associated with an increased risk of severe neurologic deficits (OR 1.81; 95% CI 1.13 to 2.90). Factors associated with a greater NIHSS score were older age, atrial fibrillation, heart failure, and use of diuretics. These factors and claudication were associated with an increased risk of 28-day mortality, whereas use of anticoagulants was associated with a reduced risk of severe neurologic deficits and death. CONCLUSION: Within this large community-based cohort, prestroke use of angiotensin-converting enzyme inhibitors was associated with a reduced risk of severe stroke.
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