Data collection
INTRAOPERATIVE BLOOD LOSS
For each patient, the following data were extracted from the database:Patient characteristics, namely sex, age, BMI, American Society of Anesthesiologists (ASA) score, smoking status, alcohol consumption status, and comorbidities.Preoperative laboratory results (plasma triglyceride and serum glucose concentrations).Radiological data. Preoperative contrast-enhanced CT scans were conducted using a CT scanner (GE Lightspeed VSX, 64-slice), and the digital data were collected and analyzed by two dependent experienced radiologists who were blinded to the clinical data. The radiologists measured and defined the image parameters, and reanalysis was performed when the differences in results between the two radiologists exceeded 5%. The CT parameters were the adipose thickness at the drainage area of the ileocolic vessels, adipose area at the drainage area of the ileocolic vessels, adipose density at the drainage area of the ileocolic vessels, type of Henle’s trunk, presence of the right colonic artery, abdominal wall adipose area, and intra-abdominal adipose area. There are six types of Henle’s trunk, each of which may affect the difficulty of surgeryIntraoperative data, namely operative time, intraoperative blood loss, and need for conversion.Postoperative data, namely length of hospitalization, morbidities graded using the Clavien–Dindo classification, and perioperative mortality. The 3-year survival rate was analyzed by follow-up.