Impact of Urology Resident Involvement on intraoperative, Long-Term Oncologic and Functional Outcomes of Robotic Assisted Laparoscopic Radical Prostatectomy

New findings regarding the influence of assistants on surgical outcomes in penile prosthesis implantation

Penile prosthesis implantation is the definitive treatment for refractory erectile dysfunction, yet exposure to this procedure during training of urology residents is often limited. To assess the effects of resident participation in penile prosthesis surgery, we compared surgical outcomes in a retrospective case series of 253 penile prosthesis surgeries by a single surgeon at the same institution between 2017 and 2020 with the assistance of either a registered nurse first assistant (RNFA) or a resident. Pertinent patient characteristics and surgical complications including device complications, surgical site infection, postoperative bleeding, iatrogenic injury, cardiovascular events, pulmonary events, and urinary retention were documented. Measured outcomes included operative time, Emergency Room (ER) visits, unplanned postoperative visits, pain medication refills, and surgical complications. Compared to RFNAs, resident-assisted penile prosthesis surgery was associated with significant increase in mean operative time (71.4 min vs. 87.9 min, p < 0.01) and postoperative ER visits (3.0% vs. 10.6%, p = 0.03) but not surgical complications (19.7% vs. 20.8%, OR 1.03, 95% CI [0.46 -2.30]) or other measured outcomes. Compared to a dedicated RFNA, Resident assistance increased operative time by approximately 17 min, but did not increase post-operative surgical complications, supporting the notion that resident assistance in these procedures may be appropriate as an integral part of training.

Positive Surgical Margins After Anterior Robot-assisted Radical Prostatectomy: Assessing the Learning Curve in a Multi-institutional Collaboration

BACKGROUND

The learning curve for robot-assisted radical prostatectomy (RARP) remains controversial, with prior studies showing that, in contrast with evidence on open and laparoscopic radical prostatectomy, biochemical recurrence rates of experienced versus inexperienced surgeons did not differ.

OBJECTIVE

To characterize the learning curve for positive surgical margins (PSMs) after RARP.

DESIGN, SETTING, AND PARTICIPANTS

We analyzed the data of 13 090 patients with prostate cancer undergoing RARP by one of 74 surgeons from ten institutions in Europe and North America between 2003 and 2022.

OUTCOME MEASUREMENTS AND STATISTICAL ANALYSIS

Multivariable models were used to assess the association between surgeon experience at the time of each patient's operation and PSMs after surgery, with adjustment for preoperative prostate-specific antigen level, grade, stage, and year of surgery. Surgeon experience was coded as the number of robotic radical prostatectomies done by the surgeon before the index patient's operation.

RESULTS AND LIMITATIONS

Overall, 2838 (22%) men had PSMs on final pathology. After adjusting for case mix, we found a significant, nonlinear association between surgical experience and probability of PSMs after surgery, with a lower risk of PSMs for greater surgeon experience (p < 0.0001). The probabilities of PSMs for a patient treated by a surgeon with ten, 250, 500, and 2000 prior robotic procedures were 26%, 21%, 18%, and 14%, respectively (absolute risk difference between ten and 2000 procedures: 11%; 95% confidence interval: 9%, 14%). Similar results were found after stratifying patients according to extracapsular extension at final pathology. Results were also unaltered after excluding surgeons who had moved between institutions.

CONCLUSIONS

While we characterized the learning curve for PSMs after RARP, the relative contribution of surgical learning to the achievement of optimal outcomes remains controversial. Future investigations should focus on what experienced surgeons do to avoid positive margins and should explore the relationship between learning, margin rate, and biochemical recurrence. Understanding what margins affect recurrence and whether these margins are trainable or a result of other factors may shed light on where to focus future efforts in surgical education.

PATIENT SUMMARY

In patients receiving robotic radical prostatectomy for prostate cancer, we characterized the learning curve for positive margins. The risk of surgical margins decreased progressively with increasing experience, and plateaued around the 500th procedure. Understanding what margins affect recurrence and whether these margins are trainable or a result of other factors has implications for surgeons and patients, and it may shed light on where to focus future efforts in surgical education.

Outcomes over 20 years performing robot-assisted laparoscopic prostatectomy: a single-surgeon experience

OBJECTIVE

To evaluate a single surgeon's 20-year experience with robotic radical prostatectomy.

METHODS

Patients who had undergone robot-assisted laparoscopic prostatectomy by a single surgeon were identified via an IRB approved prospectively maintained prostate cancer database. Patients were divided into 5-year cohorts (cohort A 2001-2005; cohort B 2006-2010; cohort C 2011-2015; cohort D 2016-2021) for analysis. Oncologic and quality of life outcomes were recorded at the time of follow-up visits. Continence was defined as 0-1 pad with occasional dribbling. Potency was defined as intercourse or an erection sufficient for intercourse within the last 4 weeks.

RESULTS

Three thousand one hundred fifty-two patients met criteria for inclusion. Clavien ≥ 3 complication rates decreased from 5.9% to 3.2%, p = 0.021. There was considerable Gleason grade group (GG) and stage migration to more advanced disease between cohort A (6.4% GG4 or GG5, 16.2% pT3 or pT4, 1.2% N1) and cohort D (17% GG4 or GG5, 45.5% pT3 or pT4, 14.4% N1; p < 0.001). Consistent with this, an increasing proportion of patients required salvage treatments over time (14.6% of cohort A vs 22.5% of cohort D, p < 0.001). 1-year continence rates improved from 74.8% to greater than 92.4%, p < 0.001. While baseline potency and use of intraoperative nerve spare decreased, for patients potent at baseline, there were no significant differences for potency at one year (p = 0.065).

CONCLUSIONS

In this 20-year review of our experience with robotic prostatectomy, complication rates and continence outcomes improved over time, and there was a migration to more advanced disease at the time of surgery.

Innovations in Urologic Surgical Training

PURPOSE OF REVIEW

This review aims to summarize innovations in urologic surgical training in the past 5 years.

RECENT FINDINGS

Many assessment tools have been developed to objectively evaluate surgical skills and provide structured feedback to urologic trainees. A variety of simulation modalities (i.e., virtual/augmented reality, dry-lab, animal, and cadaver) have been utilized to facilitate the acquisition of surgical skills outside the high-stakes operating room environment. Three-dimensional printing has been used to create high-fidelity, immersive dry-lab models at a reasonable cost. Non-technical skills such as teamwork and decision-making have gained more attention. Structured surgical video review has been shown to improve surgical skills not only for trainees but also for qualified surgeons. Research and development in urologic surgical training has been active in the past 5 years. Despite these advances, there is still an unfulfilled need for a standardized surgical training program covering both technical and non-technical skills.

Changes in UK renal oncological surgical practice from 2008 to 2017: implications for cancer service provision and surgical training

OBJECTIVE

To determine and analyse the temporal changes in oncological nephrectomy practice and training opportunities using data obtained from the UK British Association of Urological Surgeons nephrectomy register from 2008 to 2017.

PATIENT AND METHODS

All nephrectomies within the dataset for this time period were analysed (n = 54 251). Cases were divided into radical nephrectomy (RN), partial nephrectomy (PN) and nephroureterectomy (NU). Simple nephrectomy, donor nephrectomy and benign PN were excluded. The annual frequencies for each oncological nephrectomy method, surgical approach, grade of surgeon, hospital caseload numbers and short-term surgical outcomes were determined.

RESULTS

Reported annual nephrectomy numbers increased by 2.5-fold in the 9-year time period. The number of hospitals performing nephrectomies decreased by 22%, however, more than 40% of centres performed more than 70 cases a year. There was a trend towards a decrease in overall length of hospital stay (9 vs 5 days; P < 0.01) and decreased transfusion rates. The proportion of minimally invasive procedures increased from 57% to 75%, with nephron-sparing rates increasing from 8.9% overall to 24.8%. With regard to surgical technique, robot-assisted surgery saw a mean annual increase of 222%. Overall, there was a 10% decrease in the proportion of PNs performed by trainee surgeons.

CONCLUSIONS

Renal surgery has changed considerably with regard to volume and also surgical approach, with rates of nephron-sparing surgery and minimally invasive surgery significantly increasing. Increasing hospital centralization and institutional experience, and a shift to robot-assisted surgery appear to have contributed to the observed improved patient outcomes. The increasing utilization of robot-assisted surgery has potential implications and challenges for the training of future urology surgeons.

The effect of trainee involvement on surgical outcomes and complications of male infertility surgical procedures

In this study, we sought to determine the effect of trainee (resident or fellow physician) involvement in male infertility surgical procedures on patient surgical outcomes and complications. The American College of Surgeons National Surgical Quality Improvement Program (NSQIP) database was retrospectively reviewed for fertility surgical procedures from 2006 to 2012. The procedures included were as follows: epididymectomy, spermatocelectomy, varicocelectomy ± hernia repair, ejaculatory duct resection, vasovasostomy, vasoepididymostomy and 'unlisted procedure male genital system' (to capture sperm retrieval procedures). A variety of peri- and post-operative outcomes were examined. Trainee and nontrainee-involved groups were compared by Wilcoxon rank sum tests, followed by logistic regression, univariate and multivariate analyses. 924 cases were included: 309 with trainees and 615 without. The median post-graduate trainee year was 3 (range: 0-10). Patients in the trainee-involved cohort had higher rates of chronic obstructive pulmonary disease, steroid usage and black race. Mean operative time was 42.5% longer in trainee-involved cases, even after controlling for other covariates (76.2 vs. 49.5 min, p = .00). Hospital stay length was also longer in trainee-involved cases (0.41 vs. 0.35 days, p = .02). There were no differences in superficial infections (p = 1.00), deep wound infections (p = 1.00), urinary tract infections (p = .26), or reoperations (p = .23) with or without trainee involvement.