Roux-en-Y gastric bypass 10-year follow-up: the found population

J Hunter Mehaffey, Florence E Turrentine, Michael S Miller, Bruce D Schirmer, Peter T Hallowell
Surgery for Obesity and Related Diseases 2016, 12 (4): 778-782

BACKGROUND: The long-term durability of Roux-en-Y gastric bypass (RYGB) remains ill-defined in the American population secondary to poor follow-up after bariatric surgery.

OBJECTIVES: This study evaluated the population lost to follow-up to better define the long-term durability of RYGB for weight loss and co-morbidity amelioration.

METHODS: All patients (n = 1087) undergoing RYGB at a single institution between 1985 and 2004 were evaluated. Univariate differences in preoperative co-morbidities, postoperative complications, annual weight loss, and 10-year co-morbidities were analyzed to compare outcomes between patients with routine follow-up and those without. Using electronic medical record review for all encounters at our academic medical center and telephone survey, we obtained data for patients lost to follow-up.

RESULTS: Among 1087 RYGB patients, 151 (14%) had consistent 10-year follow-up in our prospectively collected database, with yearly clinic visits beyond 2 years postoperatively. Electronic medical record review and telephone survey data were collected on an additional 500 (46%) patients, resulting in 60% of patients having 10-year follow-up after RYGB. There was no statistical difference in any preoperative or postoperative variables between the 2 groups. We found no difference in co-morbidity prevalence preoperatively or at 10 years between groups. Examination of percent excess body mass index lost at yearly intervals revealed no difference between the groups at each interval up to 10 years (P = .36).

CONCLUSION: We found no difference in 10-year outcomes, including weight loss and co-morbidity reduction, between patients with routine clinic visits and those lost to follow-up. These 10-year data address the gap in knowledge resulting from poor long-term follow-up after bariatric surgery.

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