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Obes Surg. 2003 Jun;13(3):347-9.

Prevalence of non-alcoholic steatohepatitis in morbidly obese subjects undergoing gastric bypass.

Author information

  • 1Department of Surgery, Fletcher Allen Health Care/University of Vermont College of Medicine, Burlington, USA. Laurie.Spaulding@VTmednet.org

Abstract

BACKGROUND:

Obesity is the most common cause of non-alcoholic steatohepatitis (NASH). This is a prospective study to determine the incidence and severity of NASH in patients undergoing Roux-en-Y gastric bypass (RYGBP) for morbid obesity. We also examined the relationship between NASH and potential risk factors.

METHODS:

In 48 consecutive patients at RYGBP, a core liver biopsy was obtained from the left lateral segment. A single liver pathologist reviewed the histology for steatosis, ballooning/disarray, necroinflammation, and fibrosis.

RESULTS:

84% of patients were female, and average BMI was 51. 18% had WHR >1. The following risk factors were present: DM 16%; hyperlipidemia 61%; HTN 47%; and abnormal LFTs 18%. 90% had abnormal liver histology, and 56% qualified for the diagnosis of NASH. Only DM and abnormal LFTs were found to be significantly related to NASH.

CONCLUSIONS:

NASH is a common co-morbidity of obesity and requires systemized grading and staging to develop accurate knowledge of the incidence, severity, natural history and impact of weight loss.

PMID:
12841891
[PubMed - indexed for MEDLINE]
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