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Viers, Boyd R.

https://orcid.org/0000-0003-2733-6623

Mayo Clinic

Mayo Clinic

Citations 56

Optimizing Flap Selection for Urosymphyseal Fistula Repair: A Comparative Analysis of Surgical Outcomes
Escandón, Joseph M. , Fadel, Anthony , Kemble, Jayson , Houdek, Matthew T. , Bakri, Karim , Fadel, Anthony , Kemble, Jayson P , Houdek, Matthew T , Viers, Boyd, Bakri, Karim , Escandón, Joseph M , Kreutz‐Rodrigues, Lucas , Viers, Boyd R.

Microsurgery | March 18, 2026 | Volume: 46 | Issue: 3 | Pages: No page available

10.1002/micr.70197 Get It

ABSTRACT Background There is limited data regarding the surgical outcomes of urosymphyseal fistula (USF) repair with primary repair or autologous tissue transfer. We performed a study to compare outcomes of USF repair with primary repair, VRAM flap, and omental flap. Methods We retrospectively identified patients with a diagnosis of USF who underwent fistula decompression and urinary tract reconstruction. The minimal follow‐up was 3 months. Patients with distal urethral obstruction, radiation cystitis, or a non‐viable sphincter underwent anterior exenteration and flap transfer. Results Fifty‐six patients were included. Eleven patients underwent surgical management for USF using primary repair (19.6%), 34 had omental flap‐based reconstruction (60.8%), and a VRAM flap was used in 11 patients (19.6%). The 90‐day rate of sepsis was lower with omentum flap transposition (3%) compared with VRAM flap (27%) or primary repair (18%, p = 0.041). The rate of fistula recurrence was lower in the omentum flap group compared with USF primary repair (30%) or VRAM flap repair group (27.3%, p = 0.04). On multivariable analysis, USF repair with the omentum flap decreased the odds of fistula recurrence 90 days after surgery compared with primary repair (OR 0.012, p = 0.011) but not when compared with VRAM. Conclusion The omentum flap may offer a better safety profile in terms of decreasing the rate of early sepsis and rate of fistula recurrence for USF repair in comparison to primary repair. There is limited evidence regarding the superiority of the omentum flap to decrease the rate of late fistula recurrence when compared with the VRAM flap.
Outcomes After Colon Conduit Urinary Diversion: A Multi-Institutional Retrospective Study From the Reconstruction and Diversion: Improving Outcomes Group
Hebert, Kevin , Swinney, Seth , Johnson, Ryan, Ramsay, Joemy M. , Fendereski, Kiarad , DeWitt-Foy, Molly , Bearrick, Elizabeth , Maymi-Castrodad, Patricia, Stoffel, John T. , Seyer, A, McCormick, Benjamin J. , Myers, JeremyB, Hebert, Kevin J , Ramsay, Joemy , Bearrick, Elizabeth , Maymi-Castrodad, Patricia , Stoffel, John T , Seyer, Amanda, Viers, Boyd R , McCormick, Benjamin J , Myers, Jeremy B , Elliott, Sean, Viers, Boyd R.

Journal of Urology | January 13, 2026 | Volume: 215 | Issue: 5 | Pages: 621-632

10.1097/ju.0000000000004935 Get It

Timing for Repair of Urosymphyseal Fistula After Diagnosis Determines the Incidence Postoperative Outcomes
Escandón, Joseph M. , Kemble, Jayson , Houdek, Matthew T. , Bakri, Karim , Fadel, Anthony E, Kemble, Jayson P , Houdek, Matthew T , Viers, Boyd, Bakri, Karim , Escandón, Joseph M , Kreutz‐Rodrigues, Lucas , Fadel, Anthony , Paget, James , Viers, Boyd R.

Journal of Surgical Oncology | December 7, 2025 | Volume: 133 | Issue: 2 | Pages: 217-225

10.1002/jso.70133 Get It

ABSTRACT Purpose There is limited evidence regarding the optimal timing of urosymphyseal fistula (USF) repair. Our aim was to conduct a comparative analysis evaluating the postoperative complications and surgical outcomes among patients undergoing surgery for USF, comparing those treated in an early versus delayed fashion. Methods Fifty‐eight patients with diagnosis of USF and who underwent fistula decompression, pubic bone resection, and urinary tract reconstruction were included. Patients who underwent USF repair within 100 days of diagnosis were classified as having early repair, while those treated after 100 days were considered to have delayed repair. Results Thirty‐one underwent delayed USF repair (53.4%), while 27 underwent early repair (46.6%). Most patients were male (96.8%). The median age (72 years vs . 69 years, p = 0.13) and mean BMI (28.7 vs . 28.6, p = 0.97) were comparable between groups. The rate of overall 90‐day complications following USF repair was comparable between groups (77.4% vs . 63%, p = 0.228). We did not find a difference between the rates early complications among groups. The rates of long‐term recurrent pain (46.7% vs . 11.1%, p = 0.004), recurrent osteomyelitis (20% vs . 0%, p = 0.014), and fistula (23.3% vs . 3.7%, p = 0.033) were higher in the delayed USF repair group compared to the early USF repair group. The follow up time was similar between groups too (25.43‐months vs . 32.8‐months, p = 0.257). Conclusion While early USF repair might not affect the incidence of early complications within 90 days post‐surgery, it is associated with reduced rates of long‐term recurrent pain, recurrent osteomyelitis, and fistula recurrence compared to delayed USF repair.
A Step Toward Modernization of Urologic Training: Incorporation of a Novel Surgical Intelligence Platform for Robotic Prostatectomy Video Review
Henning, Grant M., Cohen, Tal , McLeay, Matthew T. , Potretzke, Aaron M. , Koo, Kevin , Boorjian, Stephen A. , Tollefson, Matthew K. , Linder, Brian J. , Khanna, Abhinav, Henning, Grant , Basourakos, Spyridon P. , Potretzke, Aaron M , Koo, Kevin , Viers, Boyd R. , Henning, Grant M , Linder, Brian J , Henning, Grant M., Findlay, Bridget L.

Journal of Endourology | October 6, 2025 | Volume: 39 | Issue: 11 | Pages: 1204-1210

10.1177/08927790251371728 Get It

Purpose: Surgical video review can be used in urologic training, yet significant barriers to the implementation of video review programs exist, and formal assessment of usage and utility for trainees is limited. Here, we evaluate a novel video review platform to describe patterns of use and determine perceived utility. Materials and Methods: We analyzed learning points entered by trainees during video review of radical prostatectomy cases using our surgical intelligence–enabled Film Room platform between September 2023 and July 2024. Learning point content was categorized according to surgical coaching domains as technical, cognitive, nontechnical, or descriptive. Entries were compared by surgical step and level of training. Anonymous surveys were distributed to trainees to determine perceived utility and reveal patterns of video review. Results: Thirteen trainees entered 480 unique learning points across all radical prostatectomy steps and spanning surgical coaching domains during the study period. Learning points varied by training level, with junior trainees entering points more often than senior trainees for Retzius-space dissection ( N = 73 vs 17, p < 0.01) and seminal vesicle and posterior dissection ( N = 58 vs 27, p < 0.01). Trainees used video review in preparation for both upcoming cases and performance analysis. Ninety-four percent of survey respondents reported they either agreed or strongly agreed that video review helped them develop surgical skills. Conclusions: We found usage across training levels and high perceived utility of our Film Room platform for video review of robotic prostatectomy. Implementation of video review platforms holds promise to augment existing urologic training and should be explored further.
Variability in Health Care Utilization and Perioperative Outcomes Among Urinary Diversion Patients: Analysis of the National Surgical Quality Improvement Program Database
Fadel, Anthony , Pinkhasov, Alexander M., Sharma, Vidit , Anderson, Katherine T. , Viers, Boyd R. , Fadel, Anthony , Findlay, Bridget L. , Pinkhasov, Alexander M.

Urology Practice | May 27, 2025 | Volume: 12 | Issue: 5 | Pages: 548-556

10.1097/upj.0000000000000839 Get It

Transmeatal Urethral Surgery: Distal Penile Strictures
Olive, Elizabeth J. , Pence, Sierra T. , Premo, Hayley , Ungerer, Garrett , Anderson, Katherine T. , Warner, Jonathan R., Premo, Hayley , Lee, Yeonsoo Sara , Findlay, Bridget L. , Viers, Boyd R. , Warner, J. Nick

Videourology™ | April 23, 2025 | Volume: 39 | Issue: 1 | Pages: 1-3

10.1089/vid.2024.0085 Get It

Introduction: Endoscopic urethroplasty combines the minimally invasive benefit of endoscopic dilation or urethrotomy with the durability of open urethroplasty. Novel techniques in endoscopic urethroplasty have appeared through the years since the 1970s, including several techniques to hold free grafts against urethrotomy beds, such as grafts glued or sutured to a catheter, double-balloon catheter, and a novel balloon-graft carrying device along with transperineal sutures. 1 – 7 Ungerer et al. describe their endoscopic buccal graft urethroplasty using laparoscopic suturing instruments and a procedure-specific transurethral sheath. 8 In this video, we present our technique and early outcomes for transmeatal urethral surgery (TraMUS) for distal penile strictures. This technique applies to any stricture of the penile urethra where the distal aspect of a buccal mucosa graft (BMG) can be accessed transmeatally. Materials and Methods: The patient is prepped in the supine position. A 6 o’clock incision is made sharply using a nasal speculum with a scalpel, and an endoscopic cold knife set along the ventral plate of the urethra from the proximal end of the stricture to the meatus. Goal caliber is 26 French. The urethrotomy length is measured. A split-thickness BMG is deployed by passing a 26 French offset scope into the urethra. A Laborie needle is passed through the scope, through the mucosal edge of the urethrotomy, and out the penile skin. With each puncture, a 3-0 PDS free suture is passed through the needle, and the needle is removed to externalize the suture through the meatus. This is repeated until one pair of sutures exists on either side of the proximal urethrotomy. The equipment is removed and the transmeatal ends of each pair of sutures are passed through the proximal end of the graft from anti-mucosa to mucosa using a free needle and tied. The transcutaneous suture ends are pulled to parachute the graft into the urethra over the urethrotomy and then tied externally at the skin. The distal end of the graft is secured to the meatus with interrupted 4-0 Vicryl. Quilting sutures are placed along the graft using 3-0 Vicryl on skiied SH needles, similarly passing the needles through the urethra and out the skin with ends tied together, and then tying externally at the skin. Alternatively, quilting may be performed via the Laborie needle for more proximal placement. A Foley catheter is placed, and a compressive dressing is applied to the penis. The catheter remains for 2 weeks. Cystoscopy is performed at 4 months and 1 year to ensure patency. Results: Nineteen patients have been treated using TraMUS for distal penile strictures. Eighteen patients had at least 4 month of follow-up, with an average follow-up of 8 months (range 4–21 months). 2 failures are documented, in which we were unable to pass the 17 Fr flexible cystoscope. Median graft length was 5 cm (range 3–15 cm, IQR 4.9). Conclusions: TraMUS for distal penile strictures is a promising new technique for minimally invasive urethral reconstruction. The technique appears to be effective, and further data about outcomes are still needed. Patient Consent: Author(s) have received and archived patient consent for video recording/publication in advance of video recording of the procedure. Conflicts of Interest: The authors have no disclosures. Runtime of video: 8 mins 13 secs.
Transmeatal Urethral Surgery: Anterior Urethral Strictures—Techniques and Early Outcomes
Premo, Hayley , Pence, Sierra T. , Olive, Elizabeth J. , Ungerer, Garrett , Anderson, Katherine , Warner, Jonathan R., Premo, Hayley , Lee, Yeonsoo Sara , Findlay, Bridget L. , Viers, Boyd R. , Warner, J. Nick

Videourology™ | April 8, 2025 | Volume: 39 | Issue: 1 | Pages: 1-2

10.1089/vid.2024.0083 Get It

Introduction: Urethral strictures affect about 1% of men over 65 in the United States and significantly impact quality of life. 1 Most strictures (92.2%) occur anteriorly. 2 Urethroplasty, the gold standard treatment, is traditionally open but can be performed endoscopically with comparable results. This prospective study describes a technique for transmeatal urethral surgery with buccal graft urethroplasty for anterior urethral strictures. Methods: A 21 French direct vision internal urethrotomy (DVIU) cystoscope is used to inspect the stricture and make an incision along its ventral aspect. After the stricture is measured, a graft of buccal mucosa is harvested. For graft deployment, we utilize a 26 French Wolf Offset Nephroscope™ and a rigid injeTAK® cystoscopy needle. At the distal aspect of the urethrotomy, the needle is passed through the urethra and out the perineum. A pair of the sutures is placed on either side of the urethrotomy and held externally at the meatus. The graft is oriented with the lamina propria facing the spongiosum. The previously placed sutures are then passed from lamina propria to mucosa at the distal aspect of the graft. The sutures are tied, creating a knot on the mucosal side. The external sutures are then pulled, and the graft retracts into the urethra. The JNW Urtract™ and Securestrap® are then used for graft fixation. Graft Deployment: At the distal aspect of the urethrotomy, the injeTAK® needle is passed through the urethra and out of the perineum. A pair of the sutures is then placed on either side of the urethrotomy. These are held in place at the meatus to maintain proper laterality and avoid twisting. The graft is oriented into position, with the anti-mucosa facing the exposed spongiosum and the mucosa facing the lumen. The previously placed sutures are then passed from anti-mucosa to mucosa using a free Mayo needle at the distal aspect of the graft. The suture pairs are tied, creating a knot on the mucosal side. The external sutures are then pulled, and the graft retracts into the urethra. Cystoscopy is performed to ensure the graft is covering the urethrotomy. Graft Fixation: The JNW Urtract was then introduced with the Securestrap® (a Vicryl tacking suture). While a finger externally compresses the perineum toward the tip of the Securestrap®, the ventral midline portion of the graft is secured. A 22 French Foley catheter is then placed over a wire. Results: Out of 20 total patients, 13 are eligible for their 4-month follow-up. Of those who have completed follow-up, 86% had urethral patency on cystoscopy. The average duration of foley catheterization was 2.4 weeks. The average operative time was 100.8 minutes, and the average estimated blood loss was 37.5 cc. Conclusion: Transmeatal urethral surgery is a safe and effective repair option for management of anterior urethral stricture disease. The authors have no disclosures or commercial associations that might create a conflict of interest. Authors have received and archived patient consent for video recording/publication in advance of video recording of the procedure. Data and video obtained during the treatment of patients at Mayo Clinic in Rochester, Minnesota. Authors have received and archived patient consent for video recording/publication in advance of video recording of the procedure. No conflicts of interest or obligations resulted from data collection. Runtime of video: 8 mins 52 secs.
Transmeatal Urethral Surgery: Short Strictures Techniques and Early Outcomes
Tolbert, Sierra, Premo, Hayley , Olive, Elizabeth J. , Ungerer, Garrett , Anderson, Katherine T. , Warner, Jonathan N. , Lee, Yeonsoo Sara , Findlay, Bridget L. , Viers, Boyd R.

Videourology™ | March 27, 2025 | Volume: 39 | Issue: 1 | Pages: 1-2

10.1089/vid.2024.0082 Get It

Introduction and Objectives: Urethral stricture disease is a challenging urologic problem with a high recurrence rate. Initial management is typically completed endoscopically (e.g., urethral dilation, direct visual internal urethrotomy); however, guidelines recommend against repeated endoscopic management. Currently, surgical urethroplasty or intermittent catheterization remains the only other option. We have demonstrated a minimally invasive approach to urethroplasty. In this video, we aim to demonstrate the techniques and early outcomes of transmeatal urethral surgery for short urethral strictures. Materials and Methods: We demonstrate the procedure in two different individuals with idiopathic bulbar urethral strictures less than 2 cm. The patient is prepped in dorsal lithotomy position. Under direct visualization via cystoscopy, the ventral place of the urethral stricture is first incised to a goal of 26 Fr lumen. Next, mucosal realignment is completed via LSI Solutions’ URTRAC sheath and the RD 180 endoscopic suturing device. Two sutures are placed on either side of the urethrotomy incision site, allowing the proximal and distal ends of the mucosa to be pulled perpendicular to the urethrotomy. After reapproximation, a titanium knot is introduced endoscopically to anchor each suture into place. An indwelling catheter is then left in place. Patients are then seen at four months postoperatively. Results: Out of four total patients, there is a 100% success rate cystoscopically at 4 months postoperatively. There have been no recorded intraoperative or postoperative complications. The average operating room time was 54 minutes, and the average estimated blood loss was 9 mL. Conclusions: Transmeatal urethral surgery for short strictures via incision and urethral reapproximation appears to be a safe and effective repair option for the management of short urethral strictures. All research procedures were carried out in accordance with ethical guidelines and institutional policies, reviewed by the IRB. Authors have received and archived patient consent for video recording/publication in advance of video recording of procedure. The authors declare that there are no commercial associations or financial interests in any product or service discussed in this article that might create a conflict of interest. The authors have not engaged in any activities or relationships with commercial entities that would bias or influence the content of this study. Runtime of video: 5 mins 40 secs.
A Flipped Classroom Model to Enhance Simulation Education for Percutaneous Renal Surgery
Qi, Robert , Potretzke, Aaron M. , Liaw, Christine , Bearrick, Elizabeth , Ungerer, Garrett , Granberg, Candace F. , Koo, Kevin , Liaw, Christine W., Bearrick, Elizabeth N., Ungerer, Garrett N, Viers, Boyd R. , Koo, Kevin , Findlay, Bridget L.

Urology Practice | February 21, 2025 | Volume: 12 | Issue: 2 | Pages: 187-190

10.1097/upj.0000000000000752 Get It

Transmeatal Urethral Surgery for Obliterated Membranous Urethra Strictures: A Step-by-Step Guide
Lee, Yeonsoo Sara , Pence, Sierra T. , Premo, Hayley , Olive, Elizabeth J. , Ungerer, Garrett , Anderson, Katherine , Warner, Jonathan R., Sara Lee, Yeonsoo , Findlay, Bridget L. , Viers, Boyd R. , Warner, J. Nick

Videourology™ | January 6, 2025 | Volume: 39 | Issue: 1 | Pages: 1-2

10.1089/vid.2024.0072 Get It

Objective: To describe a step-by-step guide for successful implementation of transmeatal urethral surgery for obliterated membranous urethral strictures. Patient and Methods: The patient is placed in the dorsal lithotomy position. Cystoscopy will be performed through both the suprapubic tube above and transmeatally from below. A Libri rigid endoscopic needle will be passed under guidance, with placement of a 0.38 wire through the inner lumen. Subsequently, over the wire, a tiger tail catheter will be placed and the wire exchanged for a rigid sensor wire, over which a charger balloon will be passed and used for dilation. The Olympus resectoscope will be used to resect the area of the stricture. The RD180 from LSI solutions will be used to situate the graft over the area of the stricture. Results: Our number of cases is five, of which 4 have had no recurrence. The median follow-up is 6 months. We have three from radiation and two from pelvic fractures. In the radiation population, one patient did recur. However, he was not obliterated and has been voiding even though he has a 14 French urethra. Conclusion: This technique appears to be a safe and effective repair option for management of obliterated membranous urethra strictures. Author disclosure statement: J.N.W. is a consultant for Olympus. The other authors have no conflicts of interest to disclose. Authors have received and archived patient consent for video recording/publication in advance of video recording of procedure . Runtime of video: 7 min 38 sec.