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Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Objective: To compare anesthetic parameters using a novel prone single transverse chest roll technique (STR) to the standard thoraco-pelvic dual transverse roll technique (DTR)., Methods: A retrospective review of 441 patients who underwent PCNL between 2018 and 2022 was performed. A total of 4 surgeons were included-surgeon 1 utilized the STR technique while surgeons 2, 3, and 4 used the DTR technique. Anesthetic parameters including end-tidal CO 2 (ETCO 2 ), mean arterial pressure (MAP), peak airway pressure (P peak ), plateau airway pressure (P plat ), positive end-expiratory pressure (PEEP), oxygen saturation (SpO 2 ), and tidal volume (TV) were compared between both groups at 0 (supine), 15-, 30-, and 60-minute post-intubation intervals. Mixed effects regression models with interaction and pairwise comparisons were made between both groups (P <.05)., Results: A total of 581 PCNLs were performed with 199 using STR and 382 using DTR. Surgery duration, ASA class, and age were similar amongst the STR and DTR groups. Estimated blood loss (59cc vs 83cc, P = .007) and length of stay (77 hrs vs 163 hrs, P = <.001) was significantly lower in the STR group. There was a significantly lower P peak , P plat and TV in the STR compared to DTR group at 0, 15, 30, and 60 minutes (P <.001)., Conclusion: Usage of a single transverse chest roll during prone PCNL appears to be a safe positioning method. STR patients had lower P peak and P plat at all time points, which has been shown to be predictive of lower blood loss., Competing Interests: Declaration of Competing Interest Dr. Amy Krambeck is a paid consultant for Ambu, Boston Scientific, Lumenis, Sonomotion, and Virtuoso Surgical. She is a board member of Sonomotion and Uriprene. Matthew Lee is a paid consultant for Lumenis. The remaining authors declare that they have no conflict of interest., (Copyright © 2024 Elsevier Inc. All rights reserved.)

Objective: To characterize the discrepancy between patients' and providers' assessments of erection rigidity and its association with patient characteristics and penile ultrasound parameters., Methods: Patients presenting for penile Doppler ultrasound between July 2022 and October 2023 were reviewed retrospectively. After intracavernosal injection, patients and providers independently rated erection rigidity from 1 to 10 prior to ultrasound. We defined discrepancy as a difference of 2 out of 10 or greater between the two assessments. Chi-squared and Mann-Whitney U tests were used for hypothesis testing., Results: 65/297 (22%) of patients demonstrated a discrepancy in perceived erection quality. 58/65 (89%) of these patients rated their erections lower than their providers. There was a higher incidence of erectile dysfunction as the primary diagnosis in the discrepant group as compared to the concordant group (P = .01). The discrepant group also showed a higher resistive index on penile ultrasound (P = .04), with no difference in peak systolic velocity, end diastolic velocity, or other clinical variables between the two groups., Conclusion: Discrepancy in perceived erection rigidity was mainly driven by lower patient perception, although these patients had noninferior penile hemodynamics to their peers. These findings underscore the influence of subjective perception of virility on sexual function. It is critical for clinicians to identify patients with poor perception of erectile function out of proportion to physiologic abnormalities. Thoughtful counseling about treatment goals and expectations, emphasizing functional outcomes, and adjunctive treatments such as sex therapy or psychotherapy are critical to therapeutic success in this population., Competing Interests: Declaration of Competing Interest The authors have no conflict of interest to declare., (Copyright © 2024 Elsevier Inc. All rights reserved.)

Objective: To evaluate if implementation of a percutaneous nephrolithotomy (PCNL) equipment whiteboard can improve communication accuracy of surgical equipment, streamline operative efficiency, and decrease unnecessary case equipment costs., Methods: A real-time editable equipment whiteboard was designed and implemented for all PCNL cases between October and December 2021. The relative difference in pre- and post-intervention surgical equipment accuracy as well as overall case costing was compared from 90 days prior to implementation to the period after intervention., Results: Quality assessment surveys were completed prior to whiteboard implementation (N = 25) and cost implementation (n = 15). Pre- and postoperative assessment of equipment communication, assessed on a 10-point scale, improved after implementation of the communication whiteboard (Pre-op: 6.7/10 vs. 8.9/10, P < .001. Post-op: 7.0/10 vs. 9.3/10, P < .001). On average 64% (3.2/5) of items were accurate on preintervention cases. Postintervention accuracy improved to 88% (4.4/5 items) (P = .049). There was a significant relative case cost improvement after implementing the PCNL equipment whiteboard with an average of $436.81 USD savings per case (P = .001) and $488.22 USD per renal moiety (P = .002)., Conclusion: Our baseline quality assessment of surgical team communication regarding PCNL equipment identified an area for improvement. Multidisciplinary feedback resulted in the development of a real-time editable PCNL equipment whiteboard which improved team perception of equipment communication, case item accuracy and resulted in a relative average cost savings for PCNL., Competing Interests: DECLARATION OF COMPETING INTEREST The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 Elsevier Inc. All rights reserved.)

Objective: To compare perioperative outcomes between Holmium laser enucleation of the prostate (HoLEP), open simple prostatectomy (OSP), and robotic simple prostatectomy (RSP) for large prostates (> 80 cc)., Materials and Methods: A retrospective study of 340 patients who underwent HoLEP (n = 209), OSP (n = 66), or RSP (n = 65) at a large academic medical center between January 2013 - September 2021 was performed. Length of stay (LOS), operative time, catheter duration, estimated blood loss (EBL), blood transfusion, and 30-day ED visits and readmissions were compared between the three groups. Univariate analyses consisted of ANOVA with Tukey's corrections and Chi-square tests. Linear and multivariate logistic regression was also performed. All tests were two-sided and a p-value <0.05 was pre-determined to be statistically significant. Analyses were performed with SAS v9.4., Results: HoLEP was found to have the shortest: operative time (1.4 vs 2.7 vs 3.8h), LOS (0.65 vs 4.2 vs 2.6d), and catheter duration (0.38 vs 9.9 vs 11.2d) compared to OSP and RSP, respectively (all P <.0001). HoLEP also had the lowest EBL (66 vs 795 vs 326 mL, P <.0001). HoLEP and RSP had a lower risk of blood transfusion compared to OSP (P <.0001). These associations remained significant on multivariable analyses., Conclusion: HoLEP is a minimally invasive treatment option for large prostates that was found to have shorter operative time, LOS, and catheter duration as well as lower EBL compared to OSP and RSP., (Copyright © 2022 Elsevier Inc. All rights reserved.)

Objective: To define risk factors and perioperative outcomes for matrix stones and compare these outcomes with struvite and calcium stone cohorts., Methods: A retrospective cohort study comparing matrix stones (n=32), struvite stones (n=23) and a matched, calcium stone control group (n=32) was performed. Two-way ANOVA was used to compare the groups for continuous variables. Chi-square tests were used to compare categorical variables. Significance was set at P <.05. All statistical tests were performed using R (v1.73)., Results: We identified no differences in age, gender, or BMI between the three groups. Matrix and struvite stones were more likely to have a history of prior stone surgery and recurrent UTIs compared to calcium stones (P=.027 and P <.001, respectively). Struvite stones were more likely to present as staghorn calculi compared to matrix or calcium stones (56.5% vs 21.7% vs 18.8%, P=.006). There were no significant differences in postoperative stone free rates (P=.378). No significant differences in postoperative infectious complications were identified. Matrix stones were more likely to have Candida on stone culture compared to the struvite or calcium stones (P <.0001)., Conclusion: Matrix and struvite stones were more likely have a history of stone surgery and preoperative recurrent UTIs. Struvite stones were more likely to present as staghorn calculi. Matrix stones were more likely to have Candida present in stone cultures. However, no difference in postoperative infectious outcomes or stone free rates were identified. Further study with larger cohorts is necessary to distinguish matrix stone postoperative outcomes from struvite and calcium stones., (Copyright © 2021 Elsevier Inc. All rights reserved.)

Objective: To investigate perceived barriers to successful same-day discharge (SDD) after holmium laser enucleation of the prostate (HoLEP) from the perspective of surgical and nursing staff members., Methods: A 17-question survey was administered to intraoperative and postoperative surgical staff in June 2021 after a six-month period of implementing a SDD HoLEP pathway with same-day catheter removal. McNemar's and Stuart-Maxwell tests were performed for statistical analysis., Results: Surveys were completed by 30 respondents. The majority of respondents had less than 5 years of surgical experience (63%). Almost all respondents (96%) felt that HoLEP patients could be discharged safely on day of surgery. Overall, 60% felt that HoLEP had a lower risk of post-operative bleeding compared to other transurethral surgeries. There was a significant decrease in number of respondents that felt apprehensive when comparing initiation of SDD HoLEP pathway to 6-months post-implementation (43% vs 7%, P = .003). The most common factors causing apprehension both pre- and post-implementation included: degree of hematuria (43% vs 40%, P = .56), risk of failure of trial of void (40% vs 30%, P = .26), and risk of readmission or unplanned emergency department (ED) visit (33% vs 30%, P = .48). There was a significant decrease in the number of respondents who were apprehensive about lack of experience with SDD after HoLEP comparing pre- and post-implementation (20% vs 0%, P = .01)., Conclusion: While staff report initial apprehension regarding implementation of a SDD HoLEP pathway, adequate support to intraoperative and postoperative teams helps build experience that alleviates these concerns., (Copyright © 2021 Elsevier Inc. All rights reserved.)

Objectives: To determine if patients were obtaining opioids after HoLEP from other sources - despite our opioid-free postoperative pathway - we utilized a national prescription drug monitoring program (PDMP) to review all patients who underwent HoLEP at our institution., Methods: We performed a retrospective review of all HoLEPs completed by two fellowship-trained surgeons. We utilized a national PDMP to determine the true rate of postoperative opioid use. The primary outcome was filling of an opioid prescription within 31 postoperative days. Student t-tests and chi-square tests were used to compare continuous and categorical variables, respectively., Results: From July 2018-July 2020, 284 men underwent HoLEP. Despite our opioid-free pathway, 35 men (12.4%) received postoperative opioids. Unfortunately, 41.2% of opioids were prescribed by our inpatient physician assistant on his own accord. To prevent confounding, these patients were excluded from primary analyses. Thus, only 7.4% of patients received postoperative opioids. On univariate analysis, surgeon experience, chronic opioid use, any opioid exposure, benzodiazepine use, and chronic pain were associated with postoperative opioid use. On multivariate analysis, only preoperative opioid exposure (OR 41.9, P = 0.0383) was identified as a significant variable., Conclusion: 92.6% of patients did not obtain postoperative opioids on our opioid-free post-HoLEP pathway, but 7.4% of patients did obtain opioids from outside sources. Proper education of the surgical team is key to prevent inappropriate opioid prescribing. On multivariate analysis, we identified that any preoperative opioid exposure was associated with an increased risk of obtaining postoperative opioids., (Copyright © 2021 Elsevier Inc. All rights reserved.)

Objective: To determine the true failure rate of opioid free ureteroscopy (OF-URS) and rates of new-persistent opioid use utilizing a national prescription drug monitoring program., Material and Methods: We identified 239 patients utilizing our retrospective stone database who underwent OF-URS from Februrary 2018-March 2020. In Feb 2018, we initiated a OF-URS pathway (diclofenac, tamsulosin, acetaminophen, pyridium and oxybutynin). Patients who had a contraindication to NSAIDs were excluded from primary analyses. A prescription drug monitoring program was then utilized to determine the number of patients who failed OF-URS (defined as receipt of an opioid within 31 days of surgery) as well as rates of new-persistent opioid use (defined as receipt of opioid 91-180 days after surgery). All statistical analyses were performed using SAS 9.4. Tests were 2-sided and statistical significance was set at P<0.05., Results: We found a OF-URS failure rate of 16.6% and 14.0% in the total and opioid naïve cohorts, respectively. Rates of new-persistent opioid use were 0.9% and 1.2%, respectively (lower than published expected rate of ~6% after URS with postoperative opioids). 91% of patients obtained opioid from alternative sources. Uni/multivariate analyses were performed for both cohorts. In the total cohort, benzodiazepine users had a lower risk of OF-URS failure on multivariate analysis. No variables were associated with OF-URS failure in the opioid naïve cohort., Conclusion: The true failure rate of OF-URS is higher than previously thought at 16.6% and 14.0%. However, efforts to reduce opioid prescriptions with OF-URS pathways have successfully reduced new-persistent opioid use., (Copyright © 2021 Elsevier Inc. All rights reserved.)

An otherwise healthy 7-year-old boy was diagnosed with malignant large cell calcifying Sertoli cell tumor (LCCSCT) of the testis. He underwent attempted partial orchiectomy with conversion to radical orchiectomy due to suspected malignancy on intraoperative frozen section. There was no lymph node or visceral metastases. To our knowledge, this is the first report of malignant LCCSCT in the prepubertal population. LCCSCT of the testis is an extremely rare neoplasm, with low malignant potential. Malignant cases are exclusively reported previously in the adult population. We report the first case of malignant LCCSCT in a pediatric patient. We review the literatures and discuss the clinical, pathologic features and treatments of malignant LCCSCT., (Copyright © 2018 Elsevier Inc. All rights reserved.)