Purpose: Obesity is a risk factor for developing abdominal wall hernias and is associated with major postoperative complications, such as surgical site infection, delayed wound healing and recurrent hernia. Therefore, treating incisional hernia in this patient subgroup is a challenge.
Methods: We conducted a comparative, prospective study on patients who underwent primary ventral hernia surgery or incisional hernia surgery through the extended totally extraperitoneal pathway, with body mass indices (BMIs) ≤ 30 (no obesity) and BMI > 30 (with obesity). We collected demographic data, preoperative and intraoperative variables, complication and recurrence rate, hospital stay and follow-up as postoperative data.
Results: From May 2018 to December 2020, 74 patients underwent this surgery, 38 patients without obesity and 36 with obesity. The median area of the hernia defect measured by CT was 57 cm and 93 cm in patients without and with obesity, respectively (p = 0.012). The median follow-up was 16 months. One patient without obesity experienced some postoperative complication compared with four patients with obesity (p > 0.05). No patient without obesity had recurrent hernia compared with two patients with obesity (p > 0.05).
Conclusions: There were statistically significant differences between patients with and without obesity in the size of the hernia defect. However, there were no significant differences in terms of complications, hospital stay, postoperative pain or relapses. Therefore, the minimally invasive completely extraperitoneal approach for patients with obesity appears to be a safe procedure despite our study limitations. Studies with longer follow-ups and a greater number of patients are needed.
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