Melissa A Kalarchian1, Marsha D Marcus2, Anita P Courcoulas3, Yu Cheng4, Michele D Levine2. 1. Duquesne University School of Nursing, Pittsburgh, Pennsylvania. Electronic address: kalarchianm@duq.edu. 2. Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania. 3. Department of Minimally Invasive Bariatric and General Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania. 4. Western Psychiatric Institute and Clinic, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania; Department of Statistics, University of Pittsburgh, Pittsburgh, Pennsylvania.
Abstract
BACKGROUND: Data on gastrointestinal (GI) side effects of bariatric surgery are limited because of incomplete reporting, cross-sectional samples, and nonstandardized assessments. OBJECTIVE: To report on GI side effects over the first 6 months after Roux-en-Y gastric bypass (RYGB) and laparoscopic adjustable gastric banding (LAGB). SETTING: Academic medical center, United States. METHODS:One hundred forty-four patients completed a standardized clinical interview 6 months after operation, including questions on the occurrence and frequency of episodes of dumping syndrome, vomiting, and plugging for each of the past 6 months; monthly rates were stable, so results were averaged over the entire period. Although data were collected as part of a randomized controlled trial, randomization group and the interaction of group by surgical procedure were not related to GI side effects. Thus, results are reported by procedure only (RYGB, n = 87; LAGB, n = 56). RESULTS: RYGB patients had a higher preoperative body mass index (BMI) than LAGB patients (46.8±6.8 versus 43.5±4.8 kg/m(2), respectively; P = .001), were more likely to report dumping (45.7% versus 4.7%, P<.0001), and were less likely to report plugging (45.7% versus 79.1%, P = .0005). Vomiting did not differ significantly by procedure (68.6% versus 65.1%, P = .7). Most patients experienced each GI side effect less than once per week. CONCLUSION: Although self-reported GI side effects were common over the first 6 months after operation, the frequency of episodes was relatively low. Longer-term follow-up is needed to determine whether symptoms worsen or improve over time.
RCT Entities:
BACKGROUND: Data on gastrointestinal (GI) side effects of bariatric surgery are limited because of incomplete reporting, cross-sectional samples, and nonstandardized assessments. OBJECTIVE: To report on GI side effects over the first 6 months after Roux-en-Y gastric bypass (RYGB) and laparoscopic adjustable gastric banding (LAGB). SETTING: Academic medical center, United States. METHODS: One hundred forty-four patients completed a standardized clinical interview 6 months after operation, including questions on the occurrence and frequency of episodes of dumping syndrome, vomiting, and plugging for each of the past 6 months; monthly rates were stable, so results were averaged over the entire period. Although data were collected as part of a randomized controlled trial, randomization group and the interaction of group by surgical procedure were not related to GI side effects. Thus, results are reported by procedure only (RYGB, n = 87; LAGB, n = 56). RESULTS: RYGB patients had a higher preoperative body mass index (BMI) than LAGB patients (46.8±6.8 versus 43.5±4.8 kg/m(2), respectively; P = .001), were more likely to report dumping (45.7% versus 4.7%, P<.0001), and were less likely to report plugging (45.7% versus 79.1%, P = .0005). Vomiting did not differ significantly by procedure (68.6% versus 65.1%, P = .7). Most patients experienced each GI side effect less than once per week. CONCLUSION: Although self-reported GI side effects were common over the first 6 months after operation, the frequency of episodes was relatively low. Longer-term follow-up is needed to determine whether symptoms worsen or improve over time.
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