Association between tumor contact surface area and parenchymal volume change in robot-assisted laparoscopic partial nephrectomy carried out using the enucleation technique.

To evaluate the change in the operated parenchymal volume during robot-assisted partial nephrectomy limited to the enucleation technique, and to analyze the predictors of decrease in operated parenchymal volume, including the tumor contact surface area. The study included 135 patients who underwent robot-assisted partial nephrectomy for T1 renal tumors using the enucleation technique. Measurements of the parenchymal volume, tumor volume and contact surface area were obtained in the venous phase on enhanced computed tomography. All measurements, including volumetric and renal function analysis, were carried out <2 months before and 6 months after surgery. The mean age of included participants was 56 years, and the mean tumor size was 33 mm. The mean tumor volume was 26 cc, and the mean contact surface area was 22 cm Contact surface area is a strong predictor of the decrease in the parenchymal volume in the operated kidney during robot-assisted partial nephrectomy carried out using the enucleation technique for T1 renal tumors.

Informations de copyright

© 2019 The Japanese Urological Association.