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A Systematic Review of the Efficacy and Safety of Aspirin When Delivered at Different Medication Times for the Primary and Secondary Prevention of Cardiovascular and Cerebrovascular Diseases
Therapeutic Innovation & Regulatory Science ( IF 1.5 ) Pub Date : 2020-05-07 , DOI: 10.1007/s43441-020-00156-w Boya Zhou , Qiaoyu Wang , Zhigang Zhao , Xin Feng
Therapeutic Innovation & Regulatory Science ( IF 1.5 ) Pub Date : 2020-05-07 , DOI: 10.1007/s43441-020-00156-w Boya Zhou , Qiaoyu Wang , Zhigang Zhao , Xin Feng
PURPOSE
Effective antiplatelet therapy can significantly reduce the incidence and mortality rate of cardiovascular and cerebrovascular diseases. Aspirin is widely used in the secondary prevention of cardiovascular and cerebrovascular diseases; however, there is widespread debate as to when patients should take an enteric-coated aspirin tablet on a daily basis. In the present study, we evaluated the efficacy and safety of different aspirin medication times (morning or before bedtime) in terms of the primary and secondary prevention of cardiovascular and cerebrovascular diseases using meta-analysis. METHODS
Studies with randomized control trials (RCT) or crossover trials regarding to the usage of aspirin (morning or before bedtime) for the primary or secondary prevention of cardiovascular and cerebrovascular diseases were searched in Medline, EMbase, Cochrane Library, CNKI, Wanfang Data, VIP Database and CBM. Review Manager 5 (RevMan 5, v5.3), a Cochrane systematic reviews software, was used to perform meta-analysis based on the recommendation of the Cochrane Handbook for risk assessment tools. RESULTS
Meta-analysis showed that taking low-dose aspirin tablets before bed reduced systolic and diastolic blood pressure compared with taking it in the morning. At the same time, the number of studies on platelet aggregation rate, C-reactive protein (CRP), serum nitric oxide (NO) or thromboxane B2 (TXB2) is too small to be reliable. However, there was a large heterogeneity across the studies. The quality of some studies was not high enough. CONCLUSION
Additional blood pressure benefits can be achieved by taking aspirin before bedtime, but it does not affect its antiplatelet effect and does not pose a higher risk of bleeding.
更新日期：2020-05-07
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