Factors Influencing Abdominal Compliance During CO2 Insufflation in Patients Undergoing Laparoscopic Abdominal Surgery

During laparoscopic surgery, pneumoperitoneum is achieved by insufflating carbon dioxide (CO2) gas into the abdominal cavity to create a safe working space. Pneumoperitoneum-induced elevation in intra-abdominal pressure (IAP) can result in various complications. Abdominal compliance (AC), represents the slope of the P-V curve of the abdominal cavity and is a measure of the ease of abdominal dilatation, is important to balance between surgical safety and complications. The aim of this study was to determine the effect of demographic and anatomic variables on AC.

The study included 90 patients who underwent laparoscopic abdominal surgery. Subcutaneous adipose tissue and abdominal muscle thickness were measured ultrasonographically. Mean AC was calculated during insufflation using the formula (ΔV/ΔP). The relationship between demographic and anatomic variables and AC was investigated