Gastric myoelectrical activity in morbidly obese patients before and 3 months after gastric restrictive surgery

F. van Dielen, A.F. de Cock, F. Daams, R.J.M. Brummer, J.W.M. Greve

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Gastric myoelectrical activity in morbidly obese patients before and 3 months after gastric restrictive surgery.

van Dielen FM, de Cock AF, Daams F, Brummer RJ, Greve JW.

Department of General Surgery, University Hospital, Maastricht, The Netherlands. f.vandielen@ah.unimaas.nl

BACKGROUND: Morbid obesity is often associated with gastrointestinal motor disorders. The aim of this study was to investigate gastric motility in morbid obesity, using electrogastrography (EGG) before and 3 months after gastric restrictive surgery. METHODS: 40 morbidly obese subjects (age 40.6+/-10.3 years, BMI 46.4+/-5.7 kg/m2) were studied. VBG and Lap-Band operations were performed in 19 and 21 patients respectively. The following EGG-parameters were determined, both during fasting (f) and postprandially (pp): dominant frequency (DF(f/pp)), dominant power (DP(f/pp)), dominant frequency and power instability coefficient (DFIC and DPIC respectively) and power ratio. RESULTS: In the Lap-Band group, DF(pp), DP(pp) and DFIC(pp) were significantly higher compared with the preprandial state, both preoperatively and 3 months postoperatively. After VBG, DF(f) and DFIC(pp) were significantly lower and DPIC(f) significantly higher compared with the preoperative state. Furthermore, DF(pp) and DP(pp) were significantly higher than the preprandial values. However, in both types of operations, power ratio did not differ significantly between the preoperative and postoperative situation. Furthermore, no clear difference in EGG-parameters between both operations could be observed. CONCLUSION: After gastric restrictive surgery, no major changes in gastric myoelectrical activity occurred, suggesting that if clinical motility problems occur after bariatric surgery, they are not due to gastric myoelectrical dysfunction
Original languageEnglish
Pages (from-to)721-727
Number of pages7
JournalObesity Surgery
Volume13
Issue number5
DOIs
Publication statusPublished - 1 Jan 2003

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