Breau, Rodney HCagiannos, IliasKnoll, GregMorash, ChristopherCnossen, SonyaLavallée, Luke TMallick, RanjeetaFinelli, AntonioJewett, MichaelLeibovich, Bradley CCook, JonathanLeBel, LouiseKapoor, AnilPouliot, FredericIzawa, JonathanRendon, RicardoFergusson, Dean A2019-03-262019-03-262019https://doi.org/10.20381/ruor-23196http://hdl.handle.net/10393/38946Partial nephrectomy is a standard of care for non-metastatic renal tumours when technically feasible. Despite the increased use of partial nephrectomy, intraoperative techniques that lead to optimal renal function after surgery have not been rigorously studied. Clamping of the renal hilum to prevent bleeding during resection causes temporary renal ischaemia. The internal temperature of the kidney may be lowered after the renal hilum is clamped (renal hypothermia) in an attempt to mitigate the effects of ischaemia. Our objective is to determine if renal hypothermia during open partial nephrectomy results in improved postoperative renal function at 12 months following surgery as compared with warm ischaemia (no renal hypothermia).encold ischemiakidney cancerpartial nephrectomyrenal functionrenal hypothermiaArticle10.1136/bmjopen-2018-025662