Robot-assisted radical prostatectomy in low- and high-risk prostate cancer patients

摘要

OBJECTIVE: To evaluate the benefit of robot-assisted radical prostatectomy (RARP) in the low-risk prostate cancer (PCa) patients suitable for active surveillance and in the high-risk PCa patients who would be considered for alternative treatments such as radiotherapy (RT) and androgen deprivation therapy (ADT) instead of radical prostatectomy. MATERIAL AND METHODS: Of 548 patients, who underwent RARP, 298 PCa patients (258 low-risk and 40 high-risk) with a mean of 3.6 years follow-up, were included into this study. Oncological outcomes were compared separately in low- and high-risk PCa patients. RESULTS: The pathologic Gleason scores were ≥7 in 73 (28%), and 68 (26%) patients had a pathologic stage of T3, 29 (11%) patients had a positive surgical margin (PSM), and 20 (7%) patients had biochemical recurrence (BCR) in the first year follow-up in the low-risk group. Of 258 low-risk PCa patients, a total of 93 (36%) patients had not either BCR, pathologic Gleason score ≥7, or ≥pT3 disease with PSM. In the high-risk group, the pathologic stage was pT2 in 14 (35%) patients and 29 (72%) patients had no biochemical recurrence in the follow-up of these high-risk PCa patients. Of 40 high-risk PCa patients, in a total of 25 (62.5%) patients ≥pT3b disease, BCR, pT3a disease with PSM were not detected. CONCLUSION: Approximately two thirds of high-risk PCa patients benefit from RARP without additional RT or ADT. Besides, more than one third of low-risk PCa patients who fit active surveillance criteria would have unfavorable results.