World J Nephrol Urol

World Journal of Nephrology and Urology, ISSN 1927-1239 print, 1927-1247 online, Open Access

Article copyright, the authors; Journal compilation copyright, World J Nephrol Urol and Elmer Press Inc

Journal website http://www.wjnu.org

Original Article

Volume 5, Number 4, December 2016, pages 79-82

Comparative Analysis of Robotic-Assisted Partial Nephrectomy Versus Open Partial Nephrectomy During the Initial Robotic Learning Curve: Does the End Justify the Means?

Table

**Table 1.** Demographic Data of Patients Undergoing Nephrectomy at the American University of Beirut Medical Center Between July 2013 and 2015
Variable	OPN	RAPN	P-value
Tumor size, cm	4.5 ± 2.7	3.6 ± 1.7	0.25
RENAL score	7 ± 2	5 ± 1	< 0.05
Operative time, min	178 ± 52	296 ± 86	< 0.05
Ischemia time, min	Cold ischemia: 24 ± 2	Warm ischemia: 17.5 ± 1
Intraoperative blood loss, mL	225 ± 132	243 ± 192	Need for blood transfusions: 0
Length of hospital stay, days	6 ± 1.6	4 ± 0.9	0.01
% change in GFR	-9%	-7%	< 0.05