The effect of intrauterine manipulator on oncological outcome in
early-stage, low-grade endometrial cancer: A retrospective cohort study
Abstract
Objective To evaluate the influence of intrauterine (IU) or
non-IU manipulators on oncological outcome in early-stage, low-grade
endometrioid endometrial cancer (EEC). Design Retrospective
cohort study Setting Nationwide population-based study in the
Netherlands Population Women with FIGO stage I, low-grade EEC
who received total laparoscopic hysterectomy between 2010 and 2020.
Methods Patient data were identified from the Netherlands
Cancer Registry. Data regarding hospital manipulator preferences were
retrieved through an online survey. Patients were categorized based on
hospital manipulator preference. Survival analyses were performed using
univariable and multivariable cox regression analysis. Main
outcome measures Recurrence of cancer, disease-free survival (DFS),
overall survival (OS), site of recurrence, and manipulator preference
according to type of hospital. Results Of the total study
population (N = 5,205), 1524 (29.3%) patients underwent surgery in
hospitals that used non-IU manipulators and 3681 (70.7%) in hospitals
that used IU manipulators. Recurrence of cancer was experienced by 195
patients, 49 (3.2%) in the non-IU group and 146 (4.0%) in the IU
group. No significant difference in site of recurrence was observed
(p=0.778). After adjusting for potential confounders, type of uterus
manipulator did not affect DFS (hazard ratio [HR] 0.93, 95%
confidence interval [CI] 0.78–1.11) and OS (HR 0.90, 95% CI
0.75–1.09). Conclusion IU manipulators are not inferior to
non-IU manipulators with respect to oncological outcome in early-stage,
low-grade EEC.