The Impact of Body Mass Index on Abdominal Wall Reconstruction Outcomes: A Comparative Study

Background: Obesity and higher body mass index may be associated with higher rates of wound healing complications and hernia recurrence rates following complex abdominal wall reconstruction. The authors hypothesized that higher body mass indexes result in higher rates of postoperative wound healing complications but similar rates of hernia recurrence in abdominal wall reconstruction patients. Methods: The authors included 511 consecutive patients who underwent abdominal wall reconstruction with underlay mesh. Patients were divided into three groups on the basis of preoperative body mass index: less than 30 kg/m2 (nonobese), 30 to 34.9 kg/m2 (class I obesity), and 35 kg/m2 or greater (class II/III obesity). The authors compared postoperative outcomes among these groups. Results: Class I and class II/III obesity patients had higher surgical-site occurrence rates than nonobese patients (26.4 percent versus 14.9 percent, p = 0.006; and 36.8 percent versus 14.9 percent, p

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