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Joseph E. Dohar, MD; George S. Goding, Jr, MD; Robert H. Maisel, MD

Arch Otolaryngol Head Neck Surg. 1994;120(1):74-77.

Abstract
Using a dorsally based, random skin flap model in 14 swine, the influence on skin flap survival of isoflurane used with nitrous oxide as maintenance anesthetic agents was examined. The mean area of skin flap survival was 54.9% for the experimental group compared with 28.6% in the control group. Arterial blood gas content (Po₂, Pco₂, and HCO₃–), respiratory rate, acid-base balance, blood pressure level, pulse rate, and temperature were monitored. Improved survival of the isoflurane–nitrous oxide group was independent of these parameters. These data support the findings of a previous study that isoflurane positively affects random skin flap survival in a swine model. Furthermore, the addition of nitrous oxide partially reduces isoflurane's beneficial effects. (Arch Otolaryngol Head Neck Surg. 1994;120:74-77)

Author Affiliations
From the Department of Pediatric Otolaryngology, Children's Hospital of Pittsburgh (Pa) (Dr Dohar), and Department of Otolaryngology–Head and Neck Surgery, University of Minnesota, Minneapolis (Drs Goding and Maisel).

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