A Prospective, Randomized Surveillance Study of Postoperative Wound Infections after Plastic Surgery

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Abstract
In a postoperative wound infection study in plastic surgery, 315 patients were randomized to either outpatient wound control after 30 days (group I) or self-control by questionnaire (group II). We present a new definition of wound infection based on physiologic wound healing. The surveillance of postoperative wound infection showed follow-up rates of 95 and 68 percent and infection rates of 16.3 and 17.1 percent for groups I and II, respectively. Of the 43 patients (16.7 percent) with postoperative wound infections, 31 (72 percent) were diagnosed after leaving the hospital, and only 12 (28 percent) were diagnosed during hospital stay. The monthly wound infection rate declined from 23.5 percent when the registration started to 12.2 percent at the end of the surveillance. The wound infection rate nearly tripled when duration of surgery was more than 120 minutes compared with less than 60 minutes. Postoperative wound infection was significantly related to preoperative contamination class, with an increase from 10.2 percent wound infections in class “clean” to 37.5 percent in class “dirty.” We conclude that postoperative wound infection also crops up in the plastic surgical department, and this situation has not, to date, been documented sufficiently. A simple questionnaire gives a useful survey of postoperative wound infections. An active follow-up for at least 30 days is essential to register the rate of surgical infections. (Plast. Reconstr. Surg. 96: 948, 1995.)

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