Martini et al reported a nomogram for predicting a significant reduction in estimated glomerular filtration rate (eGFR) after robotic partial nephrectomy. This can help to identify a patient who may benefit from more aggressive management. The authors are from Icahn School of Medicine at Mount Sinai, OhioHealth Dublin Methodist Hospital (Columbus), Temple University, Columbia University, Wake Forest School of Medicine and Swedish Urology Group (Seattle).