Obesity and postoperative outcomes of the patients with laparoscopic adrenalectomy: a systematic review and meta-analysi
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RESEARCH ARTICLE
Open Access
Obesity and postoperative outcomes of the patients with laparoscopic adrenalectomy: a systematic review and meta-analysis Celestin Danwang1,2* , Valirie Ndip Agbor3,4 and Jean Joel Bigna5,6
Abstract Background: Studies have suggested differences in postoperative outcomes between patients with obesity and those without following adrenalectomy, but these remained to be ascertained with synthesis of available evidence. The aim of this systematic review and meta-analysis was to investigate the association between obesity and outcomes of patients after laparoscopic adrenalectomy. Methods: We searched EMBASE, PubMed, Global Index Medicus, and Web of Science, without language restriction, to identify cohort studies published between January 1, 2000 and November 6, 2019. We considered studies with data comparing outcomes of adults with and without obesity after laparoscopic adrenalectomy. Random-effects meta-analysis was used to pool study-specific estimates. This review was registered with PROSPERO, CRD42018117070. Results: Five studies with data on a pooled sample of 353 patients with obesity and 828 without were included in the meta-analysis. The risk of bias was moderate to low. We found no association between obesity and the various stages of postoperative complications: Clavien-Dindo grade 1 (OR = 1.57; 95%CI = 0.55–4.48; I2 = 44.6%), grade 2 (OR = 1.12; 95%CI = 0.54–2.32; I2 = 0.0%), grade 3 (OR = 1.79; 95%CI = 0.58–5.47; I2 = 0.0%;), grade 4 (OR = 0.43; 95%CI = 0.05–3.71; I2 = 0.0%), and grade 5 (death) (OR = 0.43; 95% CI = 0.02–14.31). Furthermore, no association was found between obesity and readmission rates (OR = 0.7; 95% CI = 0.13–3.62) and conversion of laparoscopic to open surgery (OR = 0.62; 95% CI = 0.16–2.34; I2 = 19.5%). Conclusions: This study suggests that obesity is not associated with complications following laparoscopic adrenalectomy. This meta-analysis might have been underpowered to detect a true association between obesity and patient outcome after laparoscopic adrenalectomy due to the small number of included studies. Larger studies are needed to clarify the role of obesity in patients undergoing laparoscopic adrenalectomy. Keywords: Laparoscopy, Adrenalectomy, Obesity, Outcome
* Correspondence: [email protected] 1 Epidemiology and Biostatistics Unit, Institute of Experimental and Clinical Research, Université Catholique de Louvain, Brussels, Belgium 2 Department of Surgery and Specialties, Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material i
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