ArticleIrish journal of medical science2026
Evaluation of reflux in the pre- and postoperative periods in patients undergoing mini (one-anastomosis) gastric bypass due to morbid obesity.
Article in Irish journal of medical science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundObesity is a prevalent health problem in both developed and developing countries. There is no consensus on the incidence of gastro-oesophageal reflux following MGB, and the underlying factors affecting reflux remain unclear.
aimThis study aimed to investigate factors that may influence the development of gastro-oesophageal and biliary reflux after MGB surgery.
methodsThis study was designed as a retrospective cohort study. Patients aged 18-65 years who underwent MGB surgery were included in the study. Reflux symptoms were assessed using the GerdQ questionnaire preoperatively and at 6 months and 1 year postoperatively, and the results were compared.
resultsA total of 256 patients were included in the study, with an average age of 44.51 ± 10.07 years. The mean preoperative body mass index (BMI) was 47.8 ± 8.32 kg/m², decreasing to 28.05 ± 5.44 kg/m² at the one-year postoperative mark. The proportion of patients experiencing severe reflux decreased significantly from 42.7% preoperatively to 7.8% at 1 year postoperatively (p < 0.001). However, reflux symptoms at six and twelve months postoperatively were significantly higher in patients with a preoperative hiatal hernia (p < 0.001).
conclusionMini gastric bypass surgery is an effective option for managing reflux; however, as symptoms do not improve in patients with a preoperative hiatal hernia, this procedure should be avoided in patients with both gastro-oesophageal reflux and a hiatal hernia. Furthermore, the increased risk of biliary reflux should always be considered in patients with a hiatal hernia but without gastro-oesophageal reflux.
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