Prospective study of robotic partial nephrectomy for renal cancer in Japan: Comparison with a historical control undergoing laparoscopic partial nephrectomy |
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| Authors: | Kazushi Tanaka Jun Teishima Atsushi Takenaka Ryoichi Shiroki Yasuyuki Kobayashi Kazunori Hattori Hiro‐omi Kanayama Shigeo Horie Yasushi Yoshino Masato Fujisawa |
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| Institution: | 1. Division of Urology, Kobe University Graduate School of Medicine, Kobe, Japan;2. Japanese Society of Endourology Robotic Partial Nephrectomy Study Group, Kobe, Japan;3. Department of Urology, Institute of Biomedical and Health Science, Hiroshima University, Hiroshima, Japan;4. Division of Urology, Tottori University, Yonago, Japan;5. Department of Urology, Fujita Health University, Toyoake, Japan;6. Department of Urology, Okayama University Graduate School of Medicine, Okayama, Japan;7. Department of Urology, St. Luke's International Hospital, Tokyo, Japan;8. Department of Urology, Tokushima University Graduate School, Tokushima, Japan;9. Department of Urology, Juntendo University, Tokyo, Japan;10. Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan |
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| Abstract: | Objectives To evaluate the outcomes of robotic partial nephrectomy compared with those of laparoscopic partial nephrectomy for T1 renal tumors in Japanese centers. Methods Patients with a T1 renal tumor who underwent robotic partial nephrectomy were eligible for inclusion in the present study. The primary end‐point consisted of three components: a negative surgical margin, no conversion to open or laparoscopic surgery and a warm ischemia time ≤25 min. We compared data from these patients with the data from a retrospective study of laparoscopic partial nephrectomy carried out in Japan. Results A total of 108 patients were registered in the present study; 105 underwent robotic partial nephrectomy. The proportion of patients who met the primary end‐point was 91.3% (95% confidence interval 84.1–95.9%), which was significantly higher than 23.3% in the historical data. Major complications were seen in 19 patients (18.1%). The mean change in the estimated glomerular filtration rate in the operated kidney, 180 days postoperatively, was ?10.8 mL/min/1.73 m2 (95% confidence interval ?12.3–9.4%). Conclusions Robotic partial nephrectomy for patients with a T1 renal tumor is a safe, feasible and more effective operative method compared with laparoscopic partial nephrectomy. It can be anticipated that robotic partial nephrectomy will become more widely used in Japan in the future. |
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| Keywords: | laparoscopic partial nephrectomy renal cancer renal function robotic partial nephrectomy warm ischemia time |
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