• 1. Chinese Academy of Medical Sciences and Peking Union Medical Key Laboratory of Chinese Internal Medicine of Ministry of Education and Beijing, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing 100700, P.R.China;
  • 2. Beijing University of Chinese Medicine, Beijing 100029, P.R.China;
SHANG Hongcai, Email: shanghongcai@126.com
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Objective To systematically review the difference in 30-day readmission rates among acute heart failure patients between real-world studies vs. randomized controlled trials (RCTs). Methods PubMed, EMbase, The Cochrane Library, CNKI, CBM, VIP and WanFang Data databases were electronically searched to collect clinical studies on 30-day readmission rates in patients with acute heart failure from inception to April 12th, 2021. Two reviewers independently screened literature, extracted data and assessed the risk of bias of included studies. Meta-analysis was then performed using Stata 16.0 software. Results A total of 33 real-world studies and 11 RCTs involving 106 722 subjects were included. The results of meta-analysis showed that the 30-day heart failure-related readmission rates in the real-world studies and RCTs were 10.8% (95%CI 9.3% to 12.3%) and 6.9% (95%CI 5.3% to 8.4%), respectively. The 30-day all-cause readmission rates in real-world studies and randomized controlled studies were 18.6% (95%CI 15.7% to 21.4%) and 14.2% (95%CI 12.0% to 16.3%), respectively. There were statistically significant differences between two kinds of studies (P<0.05). Conclusions Current evidence suggests that the 30-day heart failure-related and all-cause readmission rates in patients of acute heart failure in real-world studies are significantly higher than those in patients of RCTs. Due to the limited quality and quantity of included studies, more high-quality studies are required to verify the above conclusions.

Citation: ZHANG Xuecheng, LIU Yan, ZHANG Jingjing, CHEN Ying, DAI Hengheng, WAN Siqi, GUAN Zhiyue, HU Mingzhi, SHANG Hongcai. 30-day readmission of patients with acute heart failure: a meta-analysis of real-world studies vs. randomized controlled trials. Chinese Journal of Evidence-Based Medicine, 2021, 21(10): 1203-1210. doi: 10.7507/1672-2531.202104094 Copy

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