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Obes Surg. 2000 Oct;10(5):391-401.

Bariatric surgery for morbid obesity.

Author information

1
ECRI Plymouth Meeting, Pennsylvania 19462-1298, USA.

Abstract

BACKGROUND:

Bariatric surgery is a treatment for severely obese patients. We examined the efficacy of bariatric surgery, addressing three questions: 1) What is the overall weight reduction following bariatric surgery? 2) What complications are associated with bariatric surgery? 3) What impact does weight loss have on obesity-related comorbidity?

METHODS:

Fixed and random effects meta-analyses were used to determine the amount of weight reduction following bariatric surgery. The influence of a variety of co-variates that could affect study results was examined. Information from evidence-based sources was used to explore the impact of weight loss on comorbidities.

RESULTS:

Meta-analyses results were affected by loss to follow-up, and within-study heterogeneity of variance. Therefore, results were pooled from studies with complete patient follow-up. Meta-analysis of six studies reporting weight loss at 1 year and four studies with mean follow-up of 9 months to 7 years demonstrated BMI reductions of 16.4 kg/m(2) and 13.3 kg/m(2), respectively. Weight reduction following bariatric surgery may be associated with improvements in risk factors for cardiac disease including hypertension, type 2 diabetes and lipid abnormalities, and may decrease the severity of obstructive sleep apnea.

CONCLUSION:

Bariatric surgery is appropriate for obese patients (BMI >40 kg/m(2) or > or =35 kg/m(2) with obesity-related comorbidity) in whom non-surgical treatment options were unsuccessful. Additional research is needed to examine the long-term benefits of weight loss following bariatric surgery, particularly with respect to obesity-related comorbidities.

PMID:
11054242
DOI:
10.1381/096089200321594246
[Indexed for MEDLINE]

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