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Observational Study
. 2021 Aug;31(8):3623-3629.
doi: 10.1007/s11695-021-05458-y. Epub 2021 May 22.

How Sustained is Roux-en-Y Gastric Bypass Long-term Efficacy? : Roux-en-Y Gastric Bypass efficacy

Marta Guimarães  1   2   3 , Catarina Osório #  4 , Diogo Silva #  4 , Rui F Almeida  4 , António Reis  4 , Samuel Cardoso  5 , Sofia S Pereira  6   5 , Mariana P Monteiro  6   5 , Mário Nora  6   4
Affiliations
Observational Study

How Sustained is Roux-en-Y Gastric Bypass Long-term Efficacy? : Roux-en-Y Gastric Bypass efficacy

Marta Guimarães et al. Obes Surg. 2021 Aug.

Abstract

Purpose: The rate of weight regain after Roux-en-Y Gastric Bypass (RYGB) can hamper the procedure long-term efficacy for obesity treatment and related comorbidities. To evaluate the rate of weight loss and comorbidity remission failure 10 years or more after RYGB surgery.

Materials and methods: Retrospective observational cohort study. Patients submitted to RYGB for obesity treatment at a single centre with 10 years or more after surgery underwent a clinical reassessment.

Results: Among the subjects invited for clinical revaluation (n = 585), only those who performed RYGB and attended the hospital visit were included in the study (n = 281). The pre-operative mean body mass index (BMI) was 44.4 ± 6.1 kg/m2. Mean post-operative time was 12.2 ± 1.1 years. After surgery, mean BMI was significantly lower 33.4 ± 5.8 kg/m2 (p < 0.0001), 29.5% with a BMI < 30 kg/m2. Mean Total Weight Lost (%TWL) was 24.3 ± 11.4%, reaching a %TWL ≥ 20% in 70.1% with a mean %TWL of 30.0 ± 7.0%. Co-morbidities remission rate was 54.2% for type 2 diabetes, 34.1% for hypertension, 52.4% for hyperlipidemia and 50% for obstructive sleep apnea. Early complications rate was 13.2% and revision surgery occurred in 2.8% of patients. Four patients died of RYGB complications within the first 90 days after surgery.

Conclusion: RYGB has a high rate of long-term successful weight loss and obesity-associated comorbidity improvement. Weight loss failure requiring revision surgery occurs in a small proportion of patients. Our data confirms the long-term effectiveness of RYGB as primary bariatric intervention.

Keywords: Obesity; Roux-en-y gastric bypass; Type 2 diabetes.

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Conflict of interest statement

None.

Figures

Fig. 1
Fig. 1
Patient selection flowchart
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