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Outcomes of comprehensive lymphadenectomy for patients with advanced stage ovarian carcinoma and rare histologic sub-types


Objective To investigate the prognostic significance of comprehensive lymphadenectomy at the time of primary debulking surgery for patients with rare histologic sub-types of epithelial ovarian carcinoma and clinically advanced stage disease who underwent complete gross resection.

Methods The National Cancer Database was accessed and patients diagnosed between January 2010 and December 2015 with stage III–IV clear cell, endometrioid, mucinous, and low-grade serous carcinoma who underwent primary debulking surgery and achieved complete gross resection were identified. Patients who did not undergo lymphadenectomy and those who underwent comprehensive lymphadenectomy (defined as at least 20 lymph nodes removed) were selected for further analysis. Overall survival was compared with the log-rank test and a Cox model was constructed to control for confounders.

Results A total of 381 patients were identified; 133 (34.9%) patients underwent comprehensive lymphadenectomy while 248 (65.1%) patients did not. There were no differences between the two groups in terms of patient race, age, presence of co-morbidities, type of treatment facility, disease stage, histology, and extent of intra-abdominal disease (p>0.05). There was no difference in overall survival between patients who did and did not undergo comprehensive lymphadenectomy (p=0.42); median overall survival was 51.48 and 47.38 months, respectively. After controlling for patient age, race, insurance status, presence of co-morbidities, intra-abdominal tumor spread, stage and histology, performance of systematic lymphadenectomy was not associated with better survival (HR 0.96, 95% CI 0.69 to 1.35).

Conclusion Comprehensive lymphadenectomy is not associated with a survival benefit for patients with rare histologic sub-types of epithelial ovarian carcinoma and advanced stage disease who underwent primary debulking surgery and complete gross resection.

  • ovarian cancer
  • cystadenocarcinoma
  • mucinous
  • surgery

Data availability statement

Data may be obtained from a third party and are not publicly available. Data available from the American College of Surgeons.

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