Early postoperative complications after liquid nitrogen - based cryoablation therapy for localized kidney cancer

The purpose of the study was to identify risk factors for the development of early postoperative complications after cryoablation of localized kidney cancer. Material and Methods. The study included 56 patients with kidney cancer who underwent cryoablation as a treatment option. Cryoablation for localized kidney cancer was performed using the liquid nitrogen-based cryogenic device. Early postoperative complications during the 30-day follow-up period were classified according to the Clavien-Dindo system. Results. The univariate analysis included 9 predictor factors that affected the risk of developing complications after kidney cancer cryoablation. However, only 2 factors were associated with an increased risk of postoperative complications: tumor localization in the right kidney (odds ratio - 0.2619, 95 % confidence interval - 0.08553-0.8020; p=0.019) and localization in the upper kidney pole (odds ratio 0.09955, 95 % confidence interval - 0.01872-0.5292; p=0.0068). Conclusion. Liquid nitrogen-based cryoablation therapy for localized kidney cancer was shown to be an effective and safe treatment option with a low incidence of postoperative complications.