Laparoscopic Rectal Surgery: Does Immediate Outcome Differ in Respect to Sex?

Abstract

PURPOSE: This study analyzed the immediate postoperative outcome of the laparoscopic approach to the rectum in relation to the sex of the patient. METHODS: Two hundred thirty-nine patients were included in our study. The inclusion criterion was rectal cancer <15 cm from the anal margin. Exclusion criteria were the presence of anesthetic contraindications for pneumoperitoneum, T4, pancolonic polyposis, and ulcerative colitis. The parameters analyzed included demographics, comorbidities, previous abdominal surgery, preoperative chemoradiotherapy, body mass index, operative time, type of operation, difficulty score, conversion, hospital stay, postoperative morbidity according to the Dindo classification, and histopathologic analysis. Analysis was performed on an intention-to-treat basis. Results are given as number of cases and percentages for categorical data, and as median and 95% confidence interval for quantitative variables. Data were analyzed by use of bivariate analysis, contingency tables, and chi or Fisher exact tests for categorical variables, and ANOVA or t test for quantitative variables. The statistical significance level was set at 5% (alpha = 0.05), and two-tailed tests were used throughout. RESULTS: We did not find any statistical differences related to sex in the global series, pure laparoscopy, or converted patients in relation to mortality, conversion, anastomotic leakage, morbidity, reintervention, and morbidity classification according to Dindo (P > .05). We only observed a trend in relation to a longer duration of surgery in men. This was statistically significant in the low anterior resection subgroup (P = .02) and in the overall series (P = .002). Statistical analysis also showed that postoperative stay was longer in men after an anterior resection (P = .015). CONCLUSION: We believe that no important differences exist in perioperative outcomes between men and women after a laparoscopic approach to rectum cancer.