• K S Black, C W Hewitt, D M Miller, E Ramos, J Halloran, V Bressler, S E Martinez, and B M Achauer.
• Division of Plastic Surgery, University of California, Irvine 92717.
• J Burn Care Rehabil. 1986 Jul 1; 7 (4): 313-7.

AbstractClinical evaluation of burn depth soon after injury is subjective, based on gross visual assessment. Previous investigators have quantified this process using fluorometry. Their studies show fluorescein levels in full-thickness burns to be far below control levels and partial-thickness burns to be about 60% of nonburned skin. In both rat and human models, 59 burn sites (eight rats) and 37 burn sites (seven patients) were assessed. Readings were taken for three hours on the rats and one hour on the patients during the first 48 hours, and the procedure was repeated for five days postburn. Maximum values during these periods were determined for burn and nonburn sites, and background levels were subtracted from these values. The rate of fluorescein uptake and the peak times for burn and nonburn sites were then compared. Actual depth of burn was determined by whether or not healing had occurred. The results showed no significant difference between partial-thickness and full-thickness burns using fluorometry, as standard deviations in both models for both depths of burn were large. Therefore, fluorometry did not provide a definitive evaluation of burn depth. These results differ from those reported by previous investigators.

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