Determinants of skeletal muscle catabolism after severe burn

David W. Hart, Steven Wolf, David L. Chinkes, Dennis Gore, Ronald P. Mlcak, Robert B. Beauford, Michael K. Obeng, Sophia Lal, Warren F. Gold, Robert R. Wolfe, David Herndon

Research output: Contribution to journalArticle

231 Citations (Scopus)

Abstract

Objective: To determine which patient factors affect the degree of catabolism after severe burn. Summary Background Data: Catabolism is associated with severe burn and leads to erosion of lean mass, impaired wound healing, and delayed rehabilitation. Methods: From 1996 to 1999, 151 stable-isotope protein kinetic studies were performed in 102 pediatric and 21 adult subjects burned over 20-99.5% of their total body surface area (TBSA). Patient demographics, burn characteristics, and hospital course variables were correlated with the net balance of skeletal muscle protein synthesis and breakdown across the leg. Data were analyzed sequentially and cumulatively through univariate and cross-sectional multiple regression. Results: Increasing age, weight, and delay in definitive surgical treatment predict increased catabolism (P < .05). Body surface area burned increased catabolism until 40% TBSA was reached; catabolism did not consistently increase thereafter. Resting energy expenditure and sepsis were also strong predictors of net protein catabolism. Among factors that did not significantly correlate were burn type, pneumonia, wound contamination, and time after burn. From these results, the authors also infer that gross muscle mass correlates independently with protein wasting after burn. Conclusions: Heavier, more muscular subjects, and subjects whose definitive surgical treatment is delayed are at the greatest risk for excess catabolism after burn. Sepsis and excessive hypermetabolism are also associated with protein catabolism.

Original languageEnglish (US)
Pages (from-to)455-465
Number of pages11
JournalAnnals of Surgery
Volume232
Issue number4
DOIs
StatePublished - 2000

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Skeletal Muscle
Body Surface Area
Sepsis
Proteins
Muscle Proteins
Isotopes
Wound Healing
Energy Metabolism
Leg
Pneumonia
Rehabilitation
Demography
Pediatrics
Weights and Measures
Muscles
Wounds and Injuries
Therapeutics

ASJC Scopus subject areas

  • Surgery

Cite this

Hart, D. W., Wolf, S., Chinkes, D. L., Gore, D., Mlcak, R. P., Beauford, R. B., ... Herndon, D. (2000). Determinants of skeletal muscle catabolism after severe burn. Annals of Surgery, 232(4), 455-465. https://doi.org/10.1097/00000658-200010000-00001

Determinants of skeletal muscle catabolism after severe burn. / Hart, David W.; Wolf, Steven; Chinkes, David L.; Gore, Dennis; Mlcak, Ronald P.; Beauford, Robert B.; Obeng, Michael K.; Lal, Sophia; Gold, Warren F.; Wolfe, Robert R.; Herndon, David.

In: Annals of Surgery, Vol. 232, No. 4, 2000, p. 455-465.

Research output: Contribution to journalArticle

Hart, DW, Wolf, S, Chinkes, DL, Gore, D, Mlcak, RP, Beauford, RB, Obeng, MK, Lal, S, Gold, WF, Wolfe, RR & Herndon, D 2000, 'Determinants of skeletal muscle catabolism after severe burn', Annals of Surgery, vol. 232, no. 4, pp. 455-465. https://doi.org/10.1097/00000658-200010000-00001
Hart, David W. ; Wolf, Steven ; Chinkes, David L. ; Gore, Dennis ; Mlcak, Ronald P. ; Beauford, Robert B. ; Obeng, Michael K. ; Lal, Sophia ; Gold, Warren F. ; Wolfe, Robert R. ; Herndon, David. / Determinants of skeletal muscle catabolism after severe burn. In: Annals of Surgery. 2000 ; Vol. 232, No. 4. pp. 455-465.
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