| Summary: | This study was aimed to assess the prevalence of pulmonary thromboembolism in patients with nephrotic syndrome. An electronic search was conducted through nine electronic databases for selection of relevant articles reporting the prevalence of pulmonary thromboembolism in patients with nephrotic syndrome. National Institute of Health was used to assess the quality of each study. Meta-analysis was used to pool the results. Of total 2267 reports screened, we finally included 11 studies including five retrospective cohorts, four prospective cohorts, and two case series studies. Out of these, ten articles were eligible for meta-analysis. The overall prevalence was 7.93% with 95% CI of 4.27 to 14.73. However, a significant heterogeneity (P < 0.001) was observed with I2= 96% and τ2= 0.899. Moreover, Egger's regression test showed a significant risk of bias (P = 0.006). Patients with nephrotic syndrome are prone to pulmonary embolism, therefore early management is critical to decreasing mortality burden.
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