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Updated: Apr 27, 2026

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Effects of bariatric surgery on right ventricular structure and function.

Cesare Cuspidi1, Carla Sala, Marta Rescaldani

  • 1aDepartment of Health Science, University of Milano-Bicocca bIstituto Auxologico Italiano cDepartment of Clinical Sciences and Community Health, University of Milano and Fondazione Policlinico di Milano, Milan, Italy dUniversity Clinical Hospital Centre 'Dragisa Misovic', Belgrade, Serbia eIstituto di Ricerche a Carattere Scientifico Multimedica, Sesto San Giovanni, Milan, Italy.

Journal of Cardiovascular Medicine (Hagerstown, Md.)
|July 1, 2014
PubMed
Summary

Bariatric surgery improves right ventricle (RV) structure and function in obese patients. This leads to reduced RV hypertrophy and better RV performance, potentially offering cardioprotective benefits.

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Area of Science:

  • Cardiology
  • Obesity Medicine
  • Bariatric Surgery Outcomes

Background:

  • Obesity is linked to left ventricular (LV) changes like hypertrophy and dysfunction, often reversible with bariatric surgery.
  • The impact of bariatric procedures on the right ventricle (RV) remains less understood.
  • RV structural and functional changes are significant predictors of patient outcomes.

Purpose of the Study:

  • To comprehensively review and synthesize existing literature on RV structural and functional changes post-bariatric surgery.
  • To assess the effects of bariatric interventions on RV morphology and performance using various imaging techniques.

Main Methods:

  • Systematic literature search using terms like 'bariatric surgery,' 'obesity,' 'right ventricle,' and 'cardiac imaging techniques.'
  • Analysis of pooled data from eight studies involving 537 obese patients with preserved systolic function.
  • Evaluation of RV structure and function using echocardiography and magnetic resonance imaging.

Main Results:

  • Bariatric surgery demonstrated significant beneficial effects on RV morphology and function in obese individuals.
  • Procedures led to a decrease in RV mass, reverting obesity-related right ventricular hypertrophy.
  • Improvements in both systolic and diastolic RV performance were observed, linked to reduced BMI and improved sleep apnea.

Conclusions:

  • Bariatric surgery positively impacts RV structure and function in morbidly obese patients.
  • The observed improvements in RV health may contribute to the overall cardioprotective effects of bariatric surgery.
  • Addressing RV changes is crucial for improving long-term outcomes in patients undergoing bariatric procedures.