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The Impact of Bariatric Surgery on Cardiac Structure, and Systolic and Diastolic Function in Patients with Obesity: A Systematic Review and Meta-analysis

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Abstract

The purpose of this study was to provide pooled data from all studies on the impact of bariatric surgery on cardiac structure, and systolic and diastolic function evaluated by either echocardiography or cardiac magnetic resonance. PubMed, Web of Science, Embase, and Scopus databases were searched. Almost all of cardiac left-side structural indices improved significantly after bariatric surgery. However, right-side structural indices did not change significantly. Left ventricular ejection fraction and most of the diastolic function indices improved significantly after the bariatric surgery. The subgroup analysis showed that the left ventricular mass index decreased more in long-term follow-up (≥ 12 months). In addition, subgroup analysis of studies based on surgery type did not reveal any difference in outcomes between gastric bypass and sleeve gastrectomy groups.

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Data Availability

All the data underlying the findings of this systematic review and meta-analysis is available from the corresponding author.

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Correspondence to Zhamak Khorgami.

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This review is registered with PROSPERO (http://www.crd.york.ac.uk/PROSPERO) with registration number of CRD42022339042.

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Key Points

• Most of left-side cardiac structure indices improved significantly after bariatric surgery.

• Bariatric surgery improves left ventricle ejection fraction significantly but modestly.

• Most cardiac left-side diastolic function indices were significantly improved after bariatric surgery.

• Right-side cardiac indices did not change significantly after bariatric surgery.

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Esparham, A., Shoar, S., Kheradmand, H.R. et al. The Impact of Bariatric Surgery on Cardiac Structure, and Systolic and Diastolic Function in Patients with Obesity: A Systematic Review and Meta-analysis. OBES SURG 33, 345–361 (2023). https://doi.org/10.1007/s11695-022-06396-z

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  • DOI: https://doi.org/10.1007/s11695-022-06396-z

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