The effect of introducing pelvic lymphadenectomy on survival and recurrence rates in Danish endometrial cancer patients at high risk: a Danish Gynecological Cancer Group study

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  • Gitte Ørtoft, Department of Gynecology, Copenhagen University Hospital, Copenhagen, Denmark
  • ,
  • Claus Høgdall, Copenhagen University Hospital Rigshospitalet, Department of Gynecology and Obstetrics, Copenhagen, Denmark.
  • ,
  • Caroline Juhl, Obstetrics and Gynecology Department, Regional Hospital Viborg, Viborg, Denmark
  • ,
  • Lone K Petersen
  • Estrid S Hansen
  • Margit Dueholm

OBJECTIVES: To evaluate the rate of survival and recurrence related to the introduction of pelvic lymphadenectomy in Danish high-risk endometrial cancer patients.

STUDY DESIGN: Data on 713 high-risk patients defined as grade 3 with >50% myometrial invasion or serous/clear/undifferentiated carcinomas stage I-IV endometrial cancer patients diagnosed from 2005 to 2012 were retrieved from the Danish Gynecological Cancer Database. Of these, 305 were high-risk stage I. Five year Kaplan-Meier survival estimates and actuarial recurrence rates were calculated, and adjusted Cox used for comparison. Findings were compared with earlier Danish results.

RESULTS: Lymphadenectomy in 390 radically operated high-risk patients resulted in upstaging of 31 patients from stage I to IIIC and 19 patients from stage II to IIIC corresponding to 12.8%. Upstaging from stage I to IIIC had a cancer-specific survival of 77%, almost comparable to lymph node-negative high-risk stage I patients (81%). Lymphadenectomy patients had a significant higher overall survival as compared with non-lymph node resected for all patients, but not for stage I patients. Lymphadenectomy, however, did not significantly affect cancer-specific survival, progression-free survival, recurrence rate or risk of local, distant, or lymph node recurrence. When the survival of high-risk stage I patients was compared with earlier Danish results, a small improvement in overall survival (7%) and cancer-specificsurvival (8%) was demonstrated.

CONCLUSION: Only a small number of high-risk patients were upstaged from stage I to III due to lymphadenectomy. These patients showed a surprisingly good survival possibly due to correct stage identification and subsequent relevant adjuvant therapy. However, even though introduction of lymphadenectomy in the Danish high-risk population seems to increase overall survival, no significant change in cancer-specific survival, progression-free survival or recurrence patterns was demonstrated.

Original languageEnglish
JournalInternational Journal of Gynecological Cancer
Pages (from-to)68-76
Number of pages9
Publication statusPublished - Jan 2019
Externally publishedYes

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