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Sleeve gastrectomy and hypertension: a systematic review of long-term outcomes

  • 2018 SAGES Oral
  • Published:
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Abstract

Introduction

Bariatric surgery has been shown to be a safe and durable intervention for patients struggling with obesity and metabolic syndrome, including hypertension. Buchwald et al. reported hypertension resolution rates in 67.1% and improvement in 78.5% following aggregate bariatric surgery. The laparoscopic sleeve gastrectomy (LSG) is becoming increasingly utilized as a primary bariatric surgery, but lacks long-term outcome data. There are a growing number of studies reporting outcome data beyond 5 years.

Objective

This study aims to systematically evaluate the efficacy of laparoscopic sleeve gastrectomy on hypertension amongst obese patients.

Materials and methods

A comprehensive literature search was conducted through Medline, Embase, Scopus, Web of Science, Dare, Cochrane library, and HTA database. The search terms used were broad: sleeve gastrectomy AND hypertension OR blood pressure. Adult patients undergoing LSG with follow-up hypertension outcome results of at least 5 years were included. Revisional surgeries were excluded. Two independent reviewers were used.

Results

Fourteen studies were included in this systematic review, which included 3550 subjects in total. Mean age was 41.1 ± 10.7 years. Mean pre-operative BMI and weight were 47.7 ± 8.83 kg/m2 and 272.8 ± 48.4 lb, respectively. Pre-operative prevalence of hypertension was 36.5% (range 6.7–91%) which dropped to 14.79% (range 0–33.3%) at approximately 5-year follow-up. Hypertension resolved in 62.17% (range 0–100%) of patients and improved in 35.7% (range 13.3–76.9%) at a mean of 5.35 years of follow-up.

Conclusion

From this systematic review, LSG is an effective intervention for bariatric patients with hypertension. In addition to the observed reduction in the incidence of hypertension, it is likely that LSG may lead to additional health system benefits such as cost savings due to reductions in antihypertensive medications. Further prospective studies should include estimates of cost savings associated with reductions in chronic antihypertensive medication usage.

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Authors and Affiliations

  1. University of Calgary, Calgary, Canada

    Carolyn Graham, Artan Reso, Christopher Armstrong, Neal Church, Philip Mitchell, Estifanos Debru & Richdeep Gill

  2. University of Alberta, Edmonton, Canada

    Noah Switzer

  3. General Surgery Residency Program, Department of Surgery, University of Calgary, 1023 North Tower, 1403 29 Street NW, Calgary, AB, T2N 2T9, Canada

    Carolyn Graham

Authors
  1. Carolyn Graham
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  2. Noah Switzer
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  3. Artan Reso
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  4. Christopher Armstrong
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  5. Neal Church
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  7. Estifanos Debru
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  8. Richdeep Gill
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Correspondence to Carolyn Graham.

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Disclosures

Drs. Graham, Switzer, Reso, Armstrong, Church, Mitchell, Debru, and Gill have no conflicts of interest or financial ties to disclose.

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Graham, C., Switzer, N., Reso, A. et al. Sleeve gastrectomy and hypertension: a systematic review of long-term outcomes. Surg Endosc 33, 3001–3007 (2019). https://doi.org/10.1007/s00464-018-6566-5

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  • DOI: https://doi.org/10.1007/s00464-018-6566-5

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