ABSTRACT
Objective To analyze the safety and effectiveness of robot-assisted laparoscopic partial nephrectomy(RLPN) for cT2 renal tumors in international multi-centers.Methods This study was conducted to collect information on surgical procedures performed by RLPN and robot assisted laparoscopic radical nephrectomy (RRN) in nineteen international urological centers from January 2012 to December 2017.RLPN were performed in 159 patients (118 males and 41 females),with the average age of (59.3 ± 13.2) years,body mass index(BMI) of (28.7 ± 5.4)kg/m2,preoperative GFR of (77.3 ± 22.1) ml/min.RRN were performed in 219 patients,with the average age of (62.0 ± 12.9) years,BMI of (28.7 ±6.1) kg/m2,preoperative GFR of (71.4 ± 20.3) ml/min.There was no statistical difference between the two groups in gender and BMI.The age of the patients in RLPN group was younger than that in RRN group,and the preoperative GFR was better.The patient's baseline demographics,perioperative data,tumor pathology,oncologic outcomes,and renal function (GFR) were recorded.Results All 378 cases underwent successful surgery.The operation time of RLPN was 150 min(65-353 min),which was shorter than that of RRN [180 min(85-361 min),P ＜ 0.001].The intra-operative blood loss of RLPN was more than that of RRN [150 ml (40-3 000 ml) vs.100 ml (10-1 100 ml),P ＜ 0.001].The incidence of intra-operative complications were not statistically different between the two groups [5.7％ (9/159) vs.3.2％ (7/219),P =0.240].The incidence of postoperative complications was higher in the RLPN group than that in RRN group [19.5％ (31/159) vs.10.5％ (23/219),P =0.014],but there was no significant difference in the incidence of complications of grade 3 or above [4.4％ (7/159) vs.2.3％ (5/219),P =0.246].The recurrence-free survival rate of RLPN group was higher than that of RRN group [91.4％ (117/128) vs.81.9％ (167/204),P =0.013],and RLPN group was more conducive to renal function protection (P ＜ 0.001).Conclusions RLPN for cT2 tumors can obtain effective tumor control rate and better renal function preservation.It could be an acceptable alternative for surgical management of cT2 tumors.
ABSTRACT
PURPOSE: To evaluate erectile function (EF) and voiding function following primary targeted cryoablation of the prostate (TCAP) for clinically localized prostate cancer (CaP) in a contemporary cohort. MATERIALS AND METHODS: We retrospectively reviewed all patients treated between 2/2000-5/2006 with primary TCAP. Variables included age, Gleason sum, pre-TCAP prostate specific antigen (PSA), prostate volume, clinical stage, pre-TCAP hormonal ablation, pre-TCAP EF and American Urologic Association Symptom Score (AUASS). EF was recorded as follows: 1 = potent; 2 = sufficient for intercourse; 3 = partial/insufficient; 4 = minimal/insufficient; 5 = none. Voiding function was analyzed by comparing pre/post-TCAP AUASS. Statistical analysis utilized SAS software with p < 0.05 considered significant. RESULTS: After exclusions, 78 consecutive patients were analyzed with a mean age of 69.2 years and follow-up 39.8 months. Thirty-five (44.9 percent) men reported pre-TCAP EF level of 1-2. Post-TCAP, 9 of 35 (25.7 percent) regained EF of level 1-2 while 1 (2.9 percent) achieved level 3 EF. Median pre-TCAP AUASS was 8.75 versus 7.50 postoperatively (p = 0.39). Six patients (7.7 percent) experienced post-TCAP urinary incontinence. Lower pre-TCAP PSA (p = 0.008) and higher Gleason sum (p = 0.002) were associated with higher post-TCAP AUASS while prostate volume demonstrated a trend (p = 0.07). Post-TCAP EF and stable AUASS were not associated with increased disease-recurrence (p = 0.24 and p = 0.67, respectively). CONCLUSIONS: Stable voiding function was observed post-TCAP, with an overall incontinence rate of 7.7 percent. Further, though erectile dysfunction is common following TCAP, 25.7 percent of previously potent patients demonstrated erections suitable for intercourse. While long-term data is requisite, consideration should be made for prospective evaluation of penile rehabilitation following primary TCAP.