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Christopher T. Layton; Patricia B. Williams, PhD; David B. Hankins, MS; Tu Phan; John H. Key; Michael F. Pratt, MD

Arch Otolaryngol Head Neck Surg. 1994;120(1):56-60.

Abstract
This study evaluated the effect of prostaglandin E₂ on skin flap survival in the porcine model. Dorsal random skin flaps on hypopigmented 15- to 25-kg pigs were used. Prostaglandin E₂ (10 ng/kg per minute) was infused for 2 days prior to surgery and continued during the 7-day postoperative period. Mean flap survival was 52.58%±3.62% for the control group and 68.51%±3.34% for the experimental group (P<.05). A moderate correlation existed between prostaglandin E₂ serum levels and flap viability. A strong correlation was noted between red blood cell flexibility and the amount of flap survival (r=.86). As red blood cell flexibility increased, the survival percentage also increased. Although prostaglandin E₂ reduced adenosine diphosphate-induced platelet aggregation from a baseline of 86.08%±8.33% to 54.61% ±17.21%, no correlation was noted between the amount of platelet aggregation and percent flap survival (r=.52). (Arch Otolaryngol Head Neck Surg. 1994;120:56-60)

Author Affiliations
From the Departments of Pharmacology (Drs Layton and Williams and Ms Phan and Messrs Hankins and Key) and Otolaryngology–Head and Neck Surgery (Dr Pratt), Eastern Virginia Medical School, Norfolk.

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