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)

Aug 12, 2020Surgical endoscopy

Short-term results of follow-up surgeries after sleeve gastrectomy: comparing re-sleeve, gastric bypass, and duodenal switch options

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Abstract

Ninety-four patients who had failed primary sleeve gastrectomy underwent various revisional surgeries, with BPD/DS resulting in the largest total weight loss of 21.8 kg.

Revisional surgeries included Roux en-Y gastric bypass (RYGB), biliopancreatic diversion with duodenal switch (BPD/DS), single-anastomosis duodenal switch (SADS), and re-sleeve surgery.
At a median follow-up of 14 months, the median body mass index (BMI) decreased from 41.9 kg/m² to 35.6 kg/m² after revision.
RYGB and BPD/DS had similar rates of major complications within 90 days and long-term, with rates of 7.3% and 3.0%, and 9.8% and 24.2%, respectively.
Bypass-type revisions (RYGB and BPD/DS) may be preferred over re-sleeve procedures for achieving greater weight loss.
Duodenal switch-type procedures may be safe and effective for patients with severe obesity prior to sleeve gastrectomy.

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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/mand 1 year after decreased by 6.3(5.1) kg/m. 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). 2 2

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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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)

Abstract

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