Level D· Scientific groundwork from lab and animal studiesAnimal StudyPubMed

Vascularised fat flaps lose 44% of their weight 24 weeks after transplantation.

Oashi K., Furukawa H., Akita S., Nakashima M., Matsuda K., Oyama A.

Animal Study, published in J Plast Reconstr Aesthet Surg (2012) — 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
Animal Study
Journal
J Plast Reconstr Aesthet Surg (2012)
Country
Netherlands
Reported sample size
—
Source database
PubMed
PMID
22633872
DOI
10.1016/j.bjps.2012.04.036

Abstract (original English)

Microsurgical transfer of the vascularised fat flaps has become a well-established method for soft-tissue augmentation because it has been believed to provide the restoration of symmetry without atrophy. Yet little has been reported on the long-term fate of the vascularised fat flaps. The purpose of this study was to evaluate the postoperative changes that occur in the vascularised fat flaps after transplantation. The superficial epigastric fat flaps based on the superficial inferior epigastric vessels in rats were used for this study. Postoperative changes were analysed by comparing pre- and postoperative weight, histological examination and fluorescent angiography. The weight of vascularised fat flaps was 56±18% of the original weight (corrected for body weight gain) 24 weeks after transplantation. In histological examinations, the vascularised fat flaps had almost normal appearances throughout the experimental period. Apoptosis of adipocytes was detected in the vascularised fat flaps using terminal deoxynucleotidyl transferase (TdT)-mediated deoxy-uridine triphosphate (dUTP)-biotin nick end-labelling (TUNEL) method during the first 4 weeks after transplantation. The vascularised fat flaps reduced in weight by about 44% over a period of 24 weeks after transplantation. Apoptosis may partly explain the weight loss.

What this study does not prove

  • • This study does not prove SVF is an approved treatment or a replacement for standard care.
  • • This is preclinical work; animal or laboratory results cannot be applied to humans.

Evidence level

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

How we grade evidence
AdipocytesAdipose TissueAngiographyAnimalsApoptosisDisease Models, AnimalFemaleGraft SurvivalImmunohistochemistryOrgan Size

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