Document Detail

Dermofluorometry: thresholds for predicting flap survival.
MedLine Citation:
PMID:  2710835     Owner:  NLM     Status:  MEDLINE    
The dye fluorescence index (DFI) has been cited as an accurate predictor of skin-flap survival. However, two thresholds, one each for flap survival and flap necrosis, have been advocated. A DFI of less than 15 to 20 percent predicts failure, and a DFI greater than 35 to 50 percent predicts survival. Values of 20 to 35 percent indicate an uncertain outcome. The present study was undertaken (1) to determine the optimum threshold for flap survival prediction in pigs, and (2) to compare dermofluorometry with flap blood flow as measured by radioactive microspheres. Dermofluorometry was found to be an accurate (90 percent) and repeatable predictor of skin and fasciocutaneous flap survival in pigs. At 2 and 5 hours after flap elevation, the optimum DFI thresholds are 7 and 27 percent, respectively. This reflects the dynamic nature of circulation in acute skin flaps and the increased dye delivery over time. Using these calculated thresholds, a high degree of correlation was found with survival estimated at 24 hours. Dermofluorometry also was correlated with the blood flow index. Thus not only is it an accurate flap monitor, but a quantitative estimate of flap blood flow can be obtained.
J G Thomson; C L Kerrigan
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Plastic and reconstructive surgery     Volume:  83     ISSN:  0032-1052     ISO Abbreviation:  Plast. Reconstr. Surg.     Publication Date:  1989 May 
Date Detail:
Created Date:  1989-05-31     Completed Date:  1989-05-31     Revised Date:  2014-10-13    
Medline Journal Info:
Nlm Unique ID:  1306050     Medline TA:  Plast Reconstr Surg     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  859-64; discussion 865     Citation Subset:  AIM; IM    
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MeSH Terms
Dermatologic Surgical Procedures
Fluoresceins / diagnostic use
Predictive Value of Tests
Regional Blood Flow
Skin / blood supply*
Surgical Flaps*
Reg. No./Substance:
0/Fluoresceins; 2321-07-5/Fluorescein

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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