Abstract
PurposeBariatric surgery alters gastrointestinal anatomy. In this exploratory study, the SmartPill® wireless motility capsule (WMC) was used to study changes in gastrointestinal physiology following biliopancreatic diversion with duodenal switch (BPD/DS).Material and MethodsTwenty-eight BPD/DS patients (35 ± 11 years, 50% females, body mass index [BMI] 56 ± 5) were to be examined preoperatively and postoperatively. In addition to transit time, appetite control and gastrointestinal symptoms were studied by patient-scored questionnaires (visual analogue scale and Gastrointestinal Symptom Rating Scale (GSRS)). Data was compared to 41 lean unoperated controls.ResultsAbout 1.8 years postoperatively, 18 patients (BMI 35.8 ± 8.3) returned for a second WMC test. As expected, small bowel transit time was reduced, from 3.9 ± 1.6 h to 2.8 ± 2.0, p = 0.02, and at both these time points, it was shorter than in lean controls (5.4 ± 1.9 h, p = 0.001). Postoperatively, a trend towards reduced colon and whole gut transit times was seen in BPD/DS-patients, thus approaching those of lean controls. Surprisingly, BPD/DS patients scored higher satiety than controls preoperatively as well as increased hunger and desire to eat postoperatively. Compared to lean, BPD/DS patients reported a higher total GSRS score at both time points (1.2 ± 0.2 vs 1.7 ± 0.6 and 2.3 ± 0.5, p < 0.001). Postoperatively, the scores for diarrhea and indigestion increased.ConclusionsThe novel use of the SmartPill system in BPD/DS patients gave the expected readouts. Although small bowel transit time was further shortened after BPD/DS, whole gut transit time did not differ from controls. Typical gastrointestinal symptoms were reported postoperatively.Graphical abstract
Highlights
Key Points (a) Biliopancreatic diversion with duodenal switch (BPD/DS) results in a moderate increase in Gastrointestinal Symptom Rating Scale (GSRS) score. (b) Successful novel application of the SmartPill system in BPD/DS patients. (c) BPD/DS reduces small bowel transit time. (d) After BPD/DS, whole gut transit times approached those of lean controls.In an effort to reduce excess weight, bariatric surgery changes gastrointestinal anatomy
Key Points (a) BPD/DS results in a moderate increase in GSRS score. (b) Successful novel application of the SmartPill system in BPD/DS patients. (c) BPD/DS reduces small bowel transit time. (d) After BPD/DS, whole gut transit times approached those of lean controls
Roux-en-Y gastric bypass reduces acid-related conditions, while reflux can be aggravated by sleeve gastrectomy [1]
Summary
Key Points (a) BPD/DS results in a moderate increase in GSRS score. (b) Successful novel application of the SmartPill system in BPD/DS patients. (c) BPD/DS reduces small bowel transit time. (d) After BPD/DS, whole gut transit times approached those of lean controls.In an effort to reduce excess weight, bariatric surgery changes gastrointestinal anatomy. (c) BPD/DS reduces small bowel transit time. (d) After BPD/DS, whole gut transit times approached those of lean controls. Biliopancreatic diversion with duodenal switch (BPD/DS), often used in patients with severe obesity, defined as body mass index (BMI) ≥ 50 kg/m2 [2], has a marked impact on bowel function due to small bowel shortening. Improving physical quality of life, BPD/DS is known to increase the daily number of bowel movements and the risk for troublesome flatus [3, 4]. At present, this is considered an inevitable consequence of the shortened small
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