Comparison of partial vs radical nephrectomy with regard to other-cause mortality in T1 renal cell carcinoma among patients aged ≥75 years with multiple comorbidities


  • M.S. and M.B. contributed equally to the work.

Correspondence: Maxine Sun, Cancer Prognostics and Health Outcomes Unit, University of Montreal Health Center, 1058, rue St-Denis, Montreal, QC, Canada H2X 3J4.



What's known on the subject? and What does the study add?

  • Surgical intervention is the established standard of care option in patients diagnosed with localized RCC.
  • The study found that better and rigorous selection of surgical candidates should be implemented in the context of localized RCC as some patients may not benefit from surgery.


  • To quantify the effect of partial nephrectomy (PN) vs radical nephrectomy (RN) on other-cause mortality (OCM) in elderly patients with localized renal cell carcinoma (RCC) and/or multiple comorbidities.


  • Using the Surveillance, Epidemiology, and End Results Medicare-linked database, patients with T1 RCC, aged ≥75 years, or who had ≥2 comorbidities, were identified (1988–2005).
  • To adjust for inherent differences between treatment types, propensity-based matched analyses were performed.
  • Competing-risks regression analyses for prediction of OCM were assessed according to treatment type.
  • The effect of PN and RN on OCM was examined in three sub-groups: patients aged ≥75 years; patients with ≥2 comorbidities; and patients aged ≥75 years with ≥2 comorbidities.


  • After propensity-based matched analyses and adjustment for all covariates, PN was found to exert a protective effect relative to RN with respect to OCM in all patients (hazard ratio [HR]: 0.84, P = 0.048).
  • In subanalyses, no difference was recorded between PN and RN in patients who were aged ≥75 years (HR: 0.83, P = 0.2), with ≥2 baseline comorbidities at diagnosis (HR: 0.83, P = 0.1), or in patients who were aged ≥75 years and who had ≥2 baseline comorbidities (HR: 0.77, P = 0.2).


  • Some elderly patients and/or those with multiple comorbidities at diagnosis may not benefit from PN with respect to OCM.
  • After rigorous patient selection, alternative treatment options could be considered.