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Antipsychotics and the Risk of Cerebrovascular Accident: A Systematic Review and Meta-Analysis of Observational
Wan-Ting Hsu1, Amin Esmaily-Fard2, Chih-Cheng Lai3
1Department of Emergency Medicine, National Taiwan University Hospital, Taipei, Taiwan; Health Economics and Outcome Research Group, National Taiwan University Hospital, Taipei, Taiwan.
Background:
Studies investigating the association between antipsychotic use and the risk of cerebrovascular accident (CVA) showed inconsistent results.
Aim:
Conduct a systematic review and meta-analysis to evaluate whether use of antipsychotics is associated with increased risk of CVA.
Methods:
Major electronic databases were searched from 1970 to October 2016 for observational studies investigating the risk of CVA among users of antipsychotics. Pooled estimates of odds ratios (ORs) and 95% confidence intervals (CIs) were obtained by random effects meta-analysis.
Results:
Of 1171 citations identified, 10 studies were considered eligible. Significant increase in risk of CVA was associated with first-generation antipsychotics (OR 1.49; 95% CI 1.24-1.77) but not with second-generation antipsychotics (OR 1.31; 95% CI 0.74-2.30). Use of any antipsychotics in patients with dementia was associated with a low risk of CVA (OR 1.17; 95% CI 1.08-1.26).
Conclusions:
The available evidence suggests use of with first-generation antipsychotics as opposed to second-generation antipsychotics significantly increased the risk of CVA.
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