Level D· Scientific groundwork from lab and animal studiesNarrative ReviewPubMed

Obesity as predictor of postoperative outcomes in liver transplant candidates: Review of the literature and future perspectives.

Barone M., Viggiani MT., Avolio AW., Iannone A., Rendina M., Di Leo A.

Narrative Review, published in Dig Liver Dis (2017) — summary generated from the PubMed abstract.

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Level D· Scientific groundwork from lab and animal studiesEvidence level of this study

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

  • Level A · Stronger Clinical Evidence
  • Level B · Emerging clinical evidence with positive signals
  • Level C · Early human research exploring benefits
  • Level D · Scientific groundwork from lab and animal studies
  • Emerging · Emerging topic under active research
Read the A–D evidence level guide

This page is generated from the PubMed record. The Thai description is an automated summary of bibliographic fields and the abstract, not a full translation, and is not medical advice.

Study type
Narrative Review
Journal
Dig Liver Dis (2017)
Country
Netherlands
Reported sample size
—
Source database
PubMed
PMID
28801180
DOI
10.1016/j.dld.2017.07.004

Abstract (original English)

Current American and European guidelines consider a pre-transplant BMI ≥40kg/m 2 as a relative contraindication for liver transplantation but this recommendation is graded as uncertain and requires further research. Moreover, conflicting results are reported on the predictive value of BMI 30-39.9kg/m 2 on post-transplant complication and mortality risk. This study analyzed the data of the literature on the effect of all three BMI classes of obesity on postoperative outcomes in liver transplantation. A PubMed and Cochrane Library search was conducted from inception to October 2015. Analysis of the literature demonstrates that discrepancies among studies are mainly either due to limitations of BMI per se, the different BMI cut-offs used to select patients with obesity or reference group and the different outcomes considered. Moreover, the evaluation of visceral adipose tissue and the detrimental effect of muscle mass reduction in presence of obesity are never considered. BMI assessment should be used as a preliminary method to evaluate obesity. Subsequently, the assessment of visceral adipose tissue and muscle mass should complete the preoperative evaluation of liver transplant candidates. This innovative approach could represent a new field of research in liver transplantation.

What this study does not prove

  • • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • • This is a narrative review: it collects no new patient data and does not systematically appraise evidence quality.

Evidence level

Evidence from laboratory and animal studies provides groundwork for understanding mechanisms and potential before human studies continue.

How we grade evidence
Body Mass IndexHumansIntra-Abdominal FatLiver TransplantationMuscle, SkeletalObesityPostoperative ComplicationsRisk Factors

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