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Antipsychotics and venous thromboembolism risk: a meta-analysis.
1Department of Respiratory Medicine, Sir Run Run Shaw Hospital , Zhejiang University School of Medicine, Hangzhou, People’s Republic of China.
Pharmacopsychiatry
|July 9, 2011
Summary
Antipsychotic medications increase the risk of venous thromboembolism (VTE) by 139%. Low-potency antipsychotics pose the highest VTE risk, necessitating further research into dose and duration effects.
Area of Science:
- Pharmacovigilance
- Clinical Epidemiology
- Drug Safety
Background:
- Antipsychotic medications have been inconsistently linked to an increased risk of venous thromboembolism (VTE).
- Existing evidence requires robust synthesis to clarify this association.
Purpose of the Study:
- To conduct a meta-analysis investigating the association between antipsychotic drug use and the risk of VTE.
- To quantify the overall risk and explore variations based on antipsychotic drug potency.
Main Methods:
- A systematic search of PubMed and EmBASE databases was performed up to October 10, 2010.
- Meta-analysis included 7 case-control studies with 31,095 cases and 143,472 controls.
- Statistical analyses were conducted using Revman 4.2 and Stata 10.0 software.
Main Results:
- Antipsychotic exposure was associated with a 139% increased risk of VTE (OR = 2.39, 95% CI: 1.71–3.35).
- Low-potency antipsychotics demonstrated the highest VTE risk (OR = 2.91), followed by atypical (OR = 2.20), conventional (OR = 1.72), and high-potency drugs (OR = 1.58).
Conclusions:
- This meta-analysis concludes that antipsychotics are a significant risk factor for VTE.
- Further large-cohort studies are needed to validate these findings.
- Future research should examine dose-response and duration-of-use effects across diverse populations.
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