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  • Title: Short-term outcomes of revisional surgery after sleeve gastrectomy: a comparative analysis of re-sleeve, Roux en-Y gastric bypass, duodenal switch (Roux en-Y and single-anastomosis).
    Author: Andalib A, Alamri H, Almuhanna Y, Bouchard P, Demyttenaere S, Court O.
    Journal: Surg Endosc; 2021 Aug; 35(8):4644-4652. PubMed ID: 32780238.
    Abstract:
    BACKGROUND: Sleeve gastrectomy (SG) is the most common primary bariatric surgery. Long-term, up to 20% of patients may need revisional surgery. We aimed to evaluate the short-term outcomes of various revisional bariatric surgeries after a failed primary SG. METHODS: This is a single-center retrospective study of a prospectively collected database of obese patients who underwent revisional bariatric surgery during 2010-2018 for a failed previous SG. Failure was defined as inadequate weight loss (< 50% excess weight loss), ≥ 20% weight regain of the weight lost, and presence of refractory non-reflux obesity-related comorbidities ≥ 1 year after SG. Revisions included were re-sleeve, Roux en-Y gastric bypass (RYGB), biliopancreatic diversion with duodenal switch (BPD/DS), and single-anastomosis duodenal switch (SADS). The primary outcome was weight loss after revision. Secondary outcomes included postoperative complications. Due to varying follow-up rates, short-term outcomes (≥ 6 and ≤ 18 months) were assessed. Descriptive statistics are expressed as count(percentage) or median(interquartile range). RESULTS: Ninety-four patients met inclusion criteria. Forty-one underwent conversion to RYGB, 33 had BPD/DS, 7 had SADS, and 13 underwent re-sleeve surgery. Median interval between SG and revision was 31(27) months. At a median of 14(18) months, follow-up rate was 76% for the study cohort. Prior to revision, median BMI was 41.9(11.7) kg/m2 and 1 year after decreased by 6.3(5.1) kg/m2. BPD/DS resulted in the largest total weight loss of 21.8(10.9) kg followed by RYGB 13.2(11.3), SADS 12.2(6.1), and re-sleeve 12.0(11.9) kg; p = 0.023. Major 90-day and long-term complications occurred only after RYGB and BPD/DS and were similar (7.3% vs. 3.0%; p = 0.769 and 9.8% vs. 24.2%; p = 0.173, respectively). CONCLUSIONS: At 1 year, revisional procedures offer further weight loss after a failed primary SG. Bypass-type revisions are preferred over re-sleeve surgery. In the absence of refractory reflux symptoms, duodenal switch-type procedures are safe and effective options especially in patients with severe obesity before SG.
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