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Peritoneal dialysis (PD) is a possible alternative in those patients, but studies are scarce, and mostly with small samples. We conducted this meta-analysis to evaluate the effects of PD in patients with RCHF. Articles published before July 2020 in the following databases: PubMed, Web of Science, and CENTRAL. Mean differences (MD) and 95% confidence intervals (CIs) were computed to generate a pooled effect size with a random effects model. We also assessed heterogeneity, risk of bias, publication bias, and quality of evidence. Twenty observational studies (<jats:italic>n<\/jats:italic>\u2009=\u2009769) were included, with a \u201cbefore and after intervention\u201d design. PD was associated with a significant reduction in NYHA functional class (MD\u2009\u22121.37, 95% CI\u2009\u22120.78 to\u2009\u22121.96) and length of hospitalisation (MD\u2009\u221234.8, 95% CI\u2009\u221220.6 to\u2009\u221248.9\u00a0days\/patient\/year), a small but significant increase in left ventricular ejection fraction (MD 4.3, 95%CI 1.9 to 6.8%) and a non-significant change in glomerular filtration rate (MD\u2009\u22123.0, 95% CI\u2009\u22126.0 to 0\u00a0mL\/min\/1.73m2). Heterogeneity among studies was significant and overall risk of bias was rated from moderate to critical. No significant publication bias was found, and the overall quality of evidence was very low for all outcomes. PD in patients with RCHF improved functional class, length of hospitalisation, and ventricular functional, and had no impact in renal function. Further randomised clinical trials are warranted to confirm our results that showed some limitations.<\/jats:p>","DOI":"10.1007\/s10741-023-10297-3","type":"journal-article","created":{"date-parts":[[2023,2,4]],"date-time":"2023-02-04T10:03:12Z","timestamp":1675504992000},"page":"1053-1063","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Efficacy of peritoneal dialysis in patients with refractory congestive heart failure: a systematic review and meta-analysis"],"prefix":"10.1007","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6061-9663","authenticated-orcid":false,"given":"Ana Teresa","family":"Tim\u00f3teo","sequence":"first","affiliation":[]},{"given":"T\u00e2nia Branco","family":"Mano","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2023,2,4]]},"reference":[{"key":"10297_CR1","doi-asserted-by":"publisher","first-page":"12","DOI":"10.1093\/eurheartj\/ehz859","volume":"41","author":"A Timmis","year":"2020","unstructured":"Timmis A, Townsend N, Gale CP, Torbica A, Lettino M, Petersen SE et al (2020) European Society of Cardiology: cardiovascular disease statistics 2019. 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