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Evaluate the Effects of Different Types of Preoperative Restricted Calorie Diets on Weight, Body Mass Index, Operation Time and Hospital Stay in Patients Undergoing Bariatric Surgery: A Systematic Review and Meta Analysis Study Publisher Pubmed



Khalooeifard R1 ; Rahmani J2 ; Ghoreishy SM3 ; Tavakoli A4 ; Najjari K5 ; Talebpour M5
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Authors Affiliations
  1. 1. Department of Clinical Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  3. 3. Department of Nutrition, School of Public Health, Iran University of Medical Sciences, Tehran, Iran
  4. 4. School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
  5. 5. Advanced Minimally Invasive Surgery Fellowship, Department of General Surgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran

Source: Obesity Surgery Published:2024


Abstract

Previous studies investigated low-calorie diets (LCD), very-low-calorie diets (VLCD), and very-low-calorie ketogenic diets (VLCKD) in relation to weight loss and outcomes for bariatric surgery patients. However, the overall effects of these diets on various outcomes remain unclear. This study aimed to assess the impact of preoperative restricted calorie diets on weight, body mass index (BMI), operation time (OT), and hospital stay (HS) in bariatric surgery patients. Seventeen articles were analyzed, revealing the highest weight loss (-8.62) and BMI reduction (-5.75) with VLCKD. Due to insufficient data, the impact of these diets on OT and HS could not be determined. Further interventional studies are required to determine the ideal preoperative diet that achieves optimal weight loss, patient compliance, tolerance, acceptance, and surgical outcomes. © 2023, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.
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