Global 30-Day Morbidity and Mortality of Primary Bariatric Surgery Combined with Another Procedure: The BLEND Study


Martinino A., Nanayakkara K. D. L., Madhok B., Wong G. Y. M., Abouelazayem M., Pereira J. P. S., ...More

Obesity Surgery, vol.34, no.11, pp.4152-4165, 2024 (SCI-Expanded, Scopus)

  • Publication Type: Article / Article
  • Volume: 34 Issue: 11
  • Publication Date: 2024
  • Doi Number: 10.1007/s11695-024-07296-0
  • Journal Name: Obesity Surgery
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Food Science & Technology Abstracts, MEDLINE
  • Page Numbers: pp.4152-4165
  • Keywords: Combined procedures, Concomitant cholecystectomy, Concomitant hiatal hernia repair, Concomitant ventral hernia repair, Primary bariatric and metabolic surgery
  • Istanbul University-Cerrahpasa Affiliated: No

Abstract

Background: No robust data are available on the safety of primary bariatric and metabolic surgery (BMS) alone compared to primary BMS combined with other procedures. Objectives: The objective of this study is to collect a 30-day mortality and morbidity of primary BMS combined with cholecystectomy, ventral hernia repair, or hiatal hernia repair. Setting: This is as an international, multicenter, prospective, and observational audit of patients undergoing primary BMS combined with one or more additional procedures. Methods: The audit took place from January 1 to June 30, 2022. A descriptive analysis was conducted. A propensity score matching analysis compared the BLEND study patients with those from the GENEVA cohort to obtain objective evaluation between combined procedures and primary BMS alone. Results: A total of 75 centers submitted data on 1036 patients. Sleeve gastrectomy was the most commonly primary BMS (N = 653, 63%), and hiatal hernia repair was the most commonly concomitant procedure (N = 447, 43.1%). RYGB accounted for the highest percentage (20.6%) of a 30-day morbidity, followed by SG (10.5%). More than one combined procedures had the highest morbidities among all combinations (17.1%). Out of overall 134 complications, 129 (96.2%) were Clavien-Dindo I–III, and 4 were CD V. Patients who underwent a primary bariatric surgery combined with another procedure had a pronounced increase in a 30-day complication rate compared with patients who underwent only BMS (12.7% vs. 7.1%). Conclusion: Combining BMS with another procedure increases the risk of complications, but most are minor and require no further treatment. Combined procedures with primary BMS is a viable option to consider in selected patients following multi-disciplinary discussion. Graphical Abstract: (Figure presented.)