Oncologic Outcomes of Laparoscopic Radical Hysterectomy Incorporating Modified Tumor-Free Techniques.

Abstract

Objective: It remains unclear whether modifying laparoscopic radical hysterectomy to adopt tumor-free principles can improve oncologic outcomes in patients with early-stage cervical cancer.

Methods: We performed a single-center retrospective cohort study of 276 patients with early-stage cervical cancer who were treated between January 2017 and January 2023, including 151 patients who underwent laparoscopic radical hysterectomy that incorporated modified tumor-free techniques (MTF group) and 125 patients who underwent conventional laparoscopic radical hysterectomy with a uterine manipulator and unprotected intracorporeal colpotomy (non-MTF group). Oncologic outcomes and perioperative results were analyzed using inverse probability treatment weighting (IPTW).

Results: Patients in the MTF group had shorter length of hospital stay than those in the non-MTF group. However, there were no significant differences in operative time, decrease in hemoglobin, or complications. After a median follow-up of 36.0 months (range 15.3-62.0 months) for the MTF group and 66.8 months (range 3.0-82.5 months) for the non-MTF group, recurrence was observed in two (1.3%) and 16 (12.8%) of the patients, respectively. The 2-year disease-free survival (DFS) rates in the MTF group and non-MTF group were 99.3% and 91.9%, respectively. In the primary analysis limited to 2-year survival, the adjusted multivariate analysis showed that use of modified tumor-free techniques was an independent predictor of longer DFS (hazard ratio 0.10 95% CI, 0.01-0.77, P=.027). After IPTW, patients in the MTF group had a more favorable DFS than those in the non-MTF group (log-rank P=.031).

Conclusion: Laparoscopic radical hysterectomy that incorporates modified tumor-free techniques is a feasible treatment for patients with early-stage cervical cancer. Oncologic outcomes of individuals who underwent this procedure were more favorable than those of conventional laparoscopic radical hysterectomy.