Perioperative morbidity of laparoscopic cryoablation of small renal masses with ultrathin probes: a European multicentre experience.

Background: Low morbidity has been advocated for cryoablation of small renal masses.

Objectives: To assess negative perioperative outcomes of laparoscopic renal cryoablation (LRC) with ultrathin cryoprobes and patient, tumour, and operative risk factors for their development.

Design, Setting, And Participants: Prospective collection of data on LRC in five centres.