Single-Port vs Multiport Robot-Assisted Partial Nephrectomy: A Meta-Analysis.

Background: Several centers have reported their experience with single-port robot-assisted partial nephrectomy (SP-RAPN); however, it is uncertain if utilization of this platform represents an improvement in outcomes compared to multiport robot-assisted partial nephrectomy (MP-RAPN). To evaluate this, we performed a meta-analysis to compare the perioperative, oncological, and functional outcomes between SP-RAPN and MP-RAPN. Methods: For relevant articles, three electronic databases, including PubMed, Scopus, and Web of Science, were searched from their inception until January 1, 2023. A meta-analysis has been reported in line with Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) 2020 and assessing the methodological quality of systematic reviews (AMSTAR) guidelines. The odds ratio (OR) and weighted mean difference (MD) were applied for the comparison of dichotomous and continuous variables with 95% confidence intervals (CI). Results: Of the 374 retrieved abstracts, 29 underwent full-text review, and 8 studies were included in the final analysis, comprising a total cohort of 1007 cases of RAPN (453 SP-RAPN cases and 554 MP-RAPN cases). Compared to MP-RAPN, the SP-RAPN group had a significantly longer ischemia time (MD = 4.6 minutes, 95% CI 2.8 to 6.3, p < 0.001), less estimated blood loss (MD = -12.4 mL, 95% CI -24.6 to -0.3, p = 0.045), higher blood transfusion rate (OR = 2.97, 95% CI 1.33 to 6.65, p = 0.008), and higher postoperative estimated glomerular filtration rate (eGFR) at 6 months (MD = 4.9 mL/min, 95% CI 0.2 to 9.7, p = 0.04). There was no significant difference in other outcomes between the two approaches, including the intraoperative complication, overall postoperative complication, minor postoperative complication (Clavien-Dindo I - II), major postoperative complication (Clavien-Dindo III-V), conversion to radical nephrectomy, pain score on day #1, pain score on discharge, morphine milligram equivalent usage, hospital stay, positive surgical margins, and postoperative eGFR. Conclusions: SP-RAPN represents an emerging technique using a novel platform. Initial studies have demonstrated that SP-RAPN is a safe and feasible approach to performing partial nephrectomy, although with inferior outcomes for ischemia time and blood transfusion rates. Further studies will be necessary to define the best usage of SP-RAPN within the surgeon's armamentarium.

Assessing Decision Regret in Patients with Same-Day Discharge Pathway After Robot-Assisted Radical Prostatectomy.

Introduction: After the introduction of same-day discharge (SDD) pathways for various surgeries, these pathways have demonstrated comparable complication rates and a reduced overall cost of care. Outpatient robot-assisted radical prostatectomy (RARP) is introduced in high-volume centers; however, patients' perspectives on the SDD RARP protocol are not well understood. Materials and Methods: A questionnaire consisting of 24 questions, including the Likert Decisional Regret Scale, was distributed to patients who underwent RARP at our center. The overall decision regret score was calculated as described in the literature. We used 15 as a cutoff point for differentiating between high- and low-regret rates. Median and interquartile range were determined for non-normally distributed variables, while mean ± standard deviation was calculated for continuous data. Results: Of the 72 patients who completed the questionnaire, 65.7% (n = 44) of patients felt no regret about their decision of choosing the SDD RARP protocol and 90.3% (n = 65) of men stated that they would have made the same decision. At the same time, 97.1% (n = 68) of patients would also recommend this procedure to others. The median decisional regret score of the cohort (n = 67) was 0 (0-10). Fifty-four of 67 (80.6%) patients were in the low-regret score group, while 13 (19.4%) were in the high-regret group. Patients in the high-regret group were more likely to have low household income (<$30,000 a year) and they experienced postoperative pain more frequently compared with patients in the lower regret group (7.7% vs 1.9%, p = 0.626, and 61.5% vs 38.9%, p = 0.212, respectively). Conclusions: Most patients expressed low regret about choosing the SDD pathway for RARP, underscoring the importance of thorough explanation of the procedure and discharge process to enhance patient experience. However, a subset of patients did express regret, possibly due to an interplay of patient- and procedure-related factors.

Single-Port Robotic Applications in Urology.

Objective: The da Vinci single-port (SP) platform represents the latest innovation in minimally invasive urologic surgery, and the adoption of this technology by urologists is increasing. In this article, we briefly describe the evolution of minimally invasive and single-site surgery, and offer a comprehensive review of the current literature on the SP platform. Materials and Methods: For relevant articles, three electronic databases, including PubMed, Scopus, and Web of Science, were searched from their inception until August 15, 2022. The published literature to date within SP robotic surgery in urology will be discussed. Evidence Synthesis: There are relatively few high-quality studies on the SP system, but there are multiple case series describing unique indications and surgical approaches with the SP robot, demonstrating safety and feasibility in the hands of experienced robotic surgeons. There also are an increasing number of prospective, larger cohort studies comparing outcomes between SP and multiport (MP) approaches that show benefits of the SP system regarding improved cosmesis, postoperative pain control, and decreased length of stay. Conclusions: Multiple prospective studies have shown benefits regarding cost and pain control for SP platform procedures compared to the traditional MP robotic approach. While its high cost and learning curve represent barriers to adoption, the SP platform represents a critical development in minimally invasive surgery. As this technology is further implemented at more institutions, long-term, high-quality data should accrue that will demonstrate its true value.

Efficacy of Pressure Regulating Balloon Exchange in Men With Post Artificial Urinary Sphincter Persistent or Recurrent Stress Urinary Incontinence.

OBJECTIVE: To assess the efficacy of exchanging the pressure regulating balloon (PRB) to 71-80 cm H2O in patients with persistent or recurrent stress urinary incontinence (SUI) following artificial urinary sphincter (AUS) placement. METHODS: Patients with SUI following AUS placement who underwent PRB replacement between 2011 and 2017 in the absence of urethral cuff malfunction, atrophy, stricture, or erosion were reviewed. Primary outcomes included changes in pad per day (PPD), Incontinence Symptom Index score, and Incontinence Quality of Life (I-QOL). Secondary outcomes included rates of device erosion and all-cause explant or revision. Differences were compared between patients with and without erosion, explant, or revision. Kaplan Meier device survival analysis was performed. RESULTS: Twenty two patients (67 ± 9 years, body mass index of 30 ± 5 kg/m2) with a median follow up of 22.4 months (IQR 9.3, 47.3) were included. Incontinence etiology included radical prostatectomy in 60% of patients. After PRB exchange, the average number of PPD decreased from 4.0 ± 3.0 to 1.0 ± 1.6 PPD (P = .01), as did Incontinence Symptom Index scores (21.6 ± 8.5 vs 16.3 ± 8.1, P <.001) and Incontinence Quality of Life (15.2 ± 6.8 vs 7.2 ± 3.4, P = .01). Three patients with prior radiation (14%) experienced cuff erosion. The explantation/revision rate was 45%(10/22) at 33.5(IQR 8.9,48) months. Kaplan-Meier analysis demonstrated 68%(15/22) and 41%(9/22) retained their device for 12 and 24 months, respectively. CONCLUSION: PRB exchange can transiently alleviate persistent or recurrent post-AUS SUI in the absence of mechanical failure or urethral pathology. Caution is warranted in patients with prior radiation as this was a risk factor for urethral erosion. Although many patients may require device revision within 2 years, it can be a temporizing solution that avoids urethral manipulation and periprocedural device deactivation.

Structural Abnormalities of the Inner Macula in Incontinentia Pigmenti.

IMPORTANCE: This report presents evidence from spectral-domain optical coherence tomography and fluorescein angiography of inner foveal structural abnormalities associated with vision loss in incontinentia pigmenti (IP). OBSERVATIONS: Two children had reduced visual behavior in association with abnormalities of the inner foveal layers on spectral-domain optical coherence tomography. Fluorescein angiography showed filling defects in retinal and choroidal circulations and irregularities of the foveal avascular zones. The foveal to parafoveal ratios were greater than 0.57 in 6 eyes of 3 patients who had extraretinal neovascularization and/or peripheral avascular retina on fluorescein angiography and were treated with laser. Of these, 3 eyes of 2 patients had irregularities in foveal avascular zones and poor vision. CONCLUSIONS AND RELEVANCE: Besides traction retinal detachment, vision loss in IP can occur with abnormalities of the inner foveal structure seen on spectral-domain optical coherence tomography, consistent with prior descriptions of foveal hypoplasia. The evolution of abnormalities in the neural and vascular retina suggests a vascular cause of the foveal structural changes. More study is needed to determine any potential benefit of the foveal to parafoveal ratio in children with IP. Even with marked foveal structural abnormalities, vision can be preserved in some patients with IP with vigilant surveillance in the early years of life.