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Recurrence Rates in Patients With Cervical Cancer Treated With Abdominal Versus Minimally Invasive Radical
Shitanshu Uppal1, Paola A Gehrig2, Katherine Peng1
1Department of Obstetrics and Gynecology, University of Michigan, Ann Arbor, MI.
Purpose:
To compare the disease-free survival (DFS) between open and minimally invasive radical hysterectomies (RH) performed in academic medical institutions.
Methods:
Retrospective multi-institutional review of patients undergoing RH for stage IA1 (with lymphovascular invasion), IA2, and IB1 squamous, adenocarcinoma, or adenosquamous carcinoma between January 1, 2010 and December 31, 2017.
Results:
Of 815 patients, open RH was performed in 255 cases (29.1%) and minimally invasive RH in 560 cases (70.9%). There were 19 (7.5%) recurrences in the open RH and 51 (9.1%) recurrences in the minimally invasive group (P = .43). Risk-adjusted analysis revealed that minimally invasive RH was independently associated with an increased hazard of recurrence (aHR, 1.88; 95% CI, 1.04 to 3.25). Other factors independently associated with an increased hazard of recurrence included tumor size, grade, and adjuvant radiation. Conization before surgery was associated with lower recurrence risk (aHR, 0.4; 95% CI, 0.23 to 0.71). There was no difference in OS in the unadjusted analysis (HR, 1.14; 95% CI, 0.61 to 2.11) or after risk adjustment (aHR, 1.01; 95% CI, 0.5 to 2.2). Of 264 patients with tumors ≤ 2 cm on final pathology (excluding those with no residual tumor on final pathology), 2/82 (2.4%) recurred in the open RH group and 16/182 (8.8%) in the minimally invasive RH group (P = .058). In propensity score matching analysis, 7/159 (4.4%) recurrences were noted in the open RH group and 18/156 (11.5%) in the minimally invasive RH group (P = .019). Survival analysis revealed an increased risk of recurrence in the minimally invasive group in propensity-matched cohort (HR, 2.83; 95% CI, 1.1 to 7.18).
Conclusion:
In this retrospective series, patients undergoing minimally invasive radical hysterectomy, including those with tumor size ≤ 2 cm on final pathology, had inferior DFS but not overall survival in the entire cohort.
