Prospective assessment of survival, morbidity, and cost associated with lymphadenectomy in low-risk endometrial cancer

S. C. Dowdy, B. J. Borah, J. N. Bakkum-Gamez, A. L. Weaver, M. E. McGree, L. R. Haas, G. L. Keeney, A. Mariani, K. C. Podratz

Research output: Contribution to journalArticle

123 Scopus citations

Abstract

Objective: Since 1999, patients with low risk endometrial cancer (EC) as defined by the Mayo criteria have preferably not undergone lymphadenectomy (LND) at our institution. Here we prospectively assess survival, sites of recurrence, morbidity, and cost in this low risk cohort. Methods: Cause-specific survival (CSS) was estimated using the Kaplan-Meier method and compared using the log-rank test. Complications were graded per the Accordion Classification. Thirty-day cost analyses were expressed in 2010 Medicare dollars. Results: Among 1393 consecutive surgically managed cases, 385 (27.6%) met inclusion criteria, accounting for 34.1% of type I EC. There were 80 LND and 305 non-LND cases. Complications in the first 30 days were significantly more common in the LND cohort (37.5% vs. 19.3%; P < 0.001). The prevalence of lymph node metastasis was 0.3% (1/385). Over a median follow-up of 5.4 years only 5 of 31 deaths were due to disease. The 5-year CSS in LND and non-LND cases was 97.3% and 99.0%, respectively (P = 0.32). None of the 11 total recurrences occurred in the pelvic or para-aortic nodal areas. Median 30-day cost of care was $15,678 for LND cases compared to $11,028 for non-LND cases (P < 0.001). The estimated cost per up-staged low-risk case was $327,866 to $439,990, adding an additional $1,418,189 if all 305 non-LND cases had undergone LND. Conclusion: Lymphadenectomy dramatically increases morbidity and cost of care without discernible benefits in low-risk EC as defined by the Mayo criteria. In these low-risk patients, hysterectomy with salpingo-oophorectomy alone is appropriate surgical management and should be standard of care.

Original languageEnglish (US)
Pages (from-to)5-10
Number of pages6
JournalGynecologic oncology
Volume127
Issue number1
DOIs
StatePublished - Oct 1 2012

Keywords

  • Cost analysis
  • Endometrial cancer
  • Lymphadenectomy
  • Morbidity

ASJC Scopus subject areas

  • Oncology
  • Obstetrics and Gynecology

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