Abstract
To investigate the effect of different pressing time on the incidence of subcutaneous hemorrhage of low molecular weight heparin (LMWH) administration by meta-analysis. Cochrane Library, PubMed, MEDLINE, CINAHL, EMbase, Springer, EBSCO, China Biomedical Literature Database, CNKI, Wanfang Database, and VIP Database were searched. To screen the literature of randomized controlled trials with different pressing time in patients with subcutaneous LMWH injection from the establishment of the database to December 2020. The quality of the literature was evaluated and the data were extracted. Meta-analysis was performed by RevMan 5.3. A total of 17 randomized controlled trials were included. Meta-analysis showed that the bleeding rate of pressing for 5 min odds ratio (OR = 3.89, 95% confidence interval [CI]: 2.68-5.64, P < .05) or pressing for 10 min (OR = 1.99, 95% CI: 1.34-2.95) was significantly lower than that of pressing for 3 min. Moreover, the bleeding rate was significantly lower in the 5 min pressing (OR = 1.47, 95% CI: 1.18-1.82) and 10 min pressing(OR = 2.12, 95% CI: 1.61-2.77) than in the no compression group. It is the most suitable time to press 5 min after subcutaneous LMWH injection, which can better control the incidence of bleeding.
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