Incidence of Dumping Syndrome after Sleeve Gastrectomy, Roux-en-Y Gastric Bypass and One-Anastomosis Gastric Bypass

Abstract

Purpose: Dumping syndrome (DS) is an important but often underreported problem occurring after bariatric surgery. It is believed that gastric bypass procedures like Roux-en-Y Gastric By-pass (RYGB) and One-Anastomosis Gastric Bypass (OAGB) are more likely to cause DS than the pylorus-preserving Sleeve Gastrectomy (SG). The aim of this study was to evaluate the incidence of DS in patients undergoing SG, RYGB and OAGB. Materials and Methods: A retrospective clinical study with 180 patients undergoing SG (n=50), RYGB (n=53) and OAGB (n=77) between 2016-2018 was performed. All clinical and demo-graphic data were assessed. The percentage of excess weight loss (%EWL) was used to evaluate weight reduction. 127/180 (70.6%) patients took part in an additional phone interview. The incidence of DS was evaluated using validated Sigstad Score. Results: Information about the occurrence of dumping symptoms and patient satisfaction was obtained from 127 patients. Median follow-up was 20.0±11.4 months. Significant differences between the surgical procedures were found for the duration of surgery, complications, weight loss, incidence of DS and satisfaction postoperatively. DS occurred in 15.6% after SG, 56.4% after RYGB and 42.9% after OAGB. A higher weight loss was observed in patients who experienced dumping symptoms. Conclusion: The present results show a clear superiority of SG regarding both perioperative results and incidence of DS compared to RYGB and OAGB and may impact clinicians and patients in their choice of procedure.

Medium-Term Outcomes from a Series of 1000 One Anastomosis Gastric Bypass in Australia: A Case Series

“…Up to 40% of patients with RYGB can experience symptoms of dumping syndrome ranging from a mild severe [ 15 ]. Although it is likely that recall bias and observer bias contribute to the low numbers in our cohort, it has been shown in the literature that dumping syndrome may be less common in patients undergoing OAGB [ 16 ]. Internal herniation occurs in up to 9–10% of patients undergoing RYGB [ 17 ]; we had no patients in our cohort with internal hernia and this appears in line with published data showing significantly lower rates of internal herniation related to OAGB [ 18 ].…”

Marginal Ulcer and Dumping Syndrome in Patients after Duodenal Switch: A Multi-Centered Study

“…While there have been no published studies on dumping syndrome following DS, there are some available data after other bariatric procedures, with reported rates between 15-70%. The incidence of dumping depends on the type of gastrectomy performed, with a higher occurrence in patients who undergo total gastrectomy compared to proximal gastrectomy [27,28].…”