Is there a relation between preserved renal function and oncological outcomes in patients undergoing partial nephrectomy for renal cell carcinoma?

Partial nephrectomy (PN) is the gold standard for treatment of small renal masses (1). The spread of this technique is due to equivalent oncological outcomes compared to radical nephrectomy (RN), better kidney function preservation and impact on cardiovascular outcomes (2). However, the hypothesis that the amount of renal function could influence oncological outcomes is still poorly inquired.