Nephron sparing surgery for renal cell carcinoma up to 7 cm in the context of guideline development: a contribution of healthcare research.

This study again demonstrated that the PADUA-score is a robust predictor of technical feasibility and treatment outcome for open PN. Consistent implementation of guidelines for nephron sparing surgery in RCC ≤7 cm is possible even in the setting of a training clinic and need not be associated with compromised treatment quality despite the increasing level of difficulty. Depending on the author, there are various definitions of trifecta-outcome. A uniform trifecta-concept would be desirable.