Back to Authors

Köhler, Tobias S.

https://orcid.org/0000-0002-4947-566X

Mayo Clinic

Mayo Clinic

Citations 10

Study recruitment challenges when conducting a randomized controlled trial comparing long- and short-acting local anesthetics for pain control after penile prosthesis
Almohtasib, J, Anians, Wyatt, Parikh, Niki , Köhler, Tobias S. , Ziegelmann, Matthew , Almohtasib, Jamil , Helo, Sevann , Ziegelmann, Matthew J, Kohler, Tobias S , Yang, David H.

The Journal of Sexual Medicine | November 15, 2025 | Volume: 23 | Issue: 1 | Pages: No page available

10.1093/jsxmed/qdaf319 Get It

Outcomes following discontinuation of chlorhexidine gluconate in inflatable penile prosthesis surgery: a return to antibiotics for irrigation and dip
Hashemi, Milad Bonakdar , Guillén-Lozoya, A.H. , Ziegelmann, Matthew , Köhler, Tobias S. , Bonakdar Hashemi, Milad, Helo, Sevann , Lozoya, Andres Guillen , Ziegelmann, Matthew J

The Journal of Sexual Medicine | August 26, 2025 | Volume: 22 | Issue: 11 | Pages: 2134-2135

10.1093/jsxmed/qdaf223 Get It

Penile prosthesis for erectile dysfunction: recommendations from the 5th International Consultation on Sexual Medicine
Köhler, Tobias S. , Munarriz, Ricardo , Parker, Justin , Hatzichristodoulou, Georgios , Moncada, Ignacio , Park, Sung Hun, Ralph, David , Wang, Run , Bettocchi, Carlo , Martins, Francisco E. , Osmonov, Daniar

Sexual Medicine Reviews | January 30, 2025 | Volume: 13 | Issue: 2 | Pages: 144-171

10.1093/sxmrev/qeaf001 Get It

Abstract Introduction Penile prosthesis (PP) is one of the main approved therapies for erectile dysfunction (ED). Greater than 50 years of clinical use has led to considerable innovation in PP surgery and patient care. Objectives To summarize the current literature and provide updated clinical evidence to inform healthcare providers on best practices with PP. Methods A consensus panel was held with leading sexual medicine experts during the 5th International Consultation on Sexual Medicine (ICSM). Relevant peer-reviewed literature was reviewed with focus on research from but not limited to the last 10 years. The quality of each individual study was judged with Oxford levels of evidence (LOE) criteria, but overall LOE were not used as systematic review was not performed. The expert panel generated consensus statements based on the quality of evidence and criteria of GRADE (Grading of Recommendations Assessment, Development and Evaluation). Results PP provides excellent outcomes for the treatment of ED. The panel developed 35 recommendations building upon previous recommendations. Nine recommendations (4, 5, 11,13,17, 25, 26, 31, and 32) are retained without change from 2015. Twelve recommendations (1, 2, 3, 7, 9,14,16,19,21, 28, 33, and 34) change syntax to make statements more active or change details. Fourteen recommendations (6, 8, 10, 12, 15, 18, 20, 22, 23, 24, 27, 29, 30, and 35) are novel in this update. Conclusion Since the 4th ICSM, new evidence has emerged to guide PP use in modern sexual medicine. While multi-institutional studies are needed to improve outcomes, key challenges remain: reducing infections, enhancing devices, and improving awareness and accessibility. We recommend following 5th ICSM guidelines while emphasizing the importance of clinical judgment and shared decision-making for optimal PP outcomes.
IPP PLAN: A penile implant checklist
Pinkhasov, Alexandr, Byrne, Eileen R. , Köhler, Tobias S.

International Journal of Reconstructive Urology | October 31, 2024 | Volume: 2 | Issue: 2 | Pages: 124-127

10.4103/ijru.ijru_23_24 Get It

Lessons learned from the Sexual Medicine Society of North America fellowship bootcamp
Köhler, Tobias S. , Hashemi, Milad Bonakdar , Morey, Allen F. , Nelson, Christian J. , Trost, Landon , Ziegelmann, Matthew , Khera, Mohit , Bonakdar Hashemi, Milad, Helo, Sevann , Nelson, Christian J , Ziegelmann, Matthew J

The Journal of Sexual Medicine | August 26, 2024 | Volume: 21 | Issue: 10 | Pages: 961-966

10.1093/jsxmed/qdae099 Get It

Abstract Background Sexual Medicine Society of North America (SMSNA) fellowships offer variable experience in sexual health domains: erectile dysfunction, Peyronie’s disease, male infertility, male hypogonadism (low testosterone), reconstruction (including male incontinence), benign prostatic hyperplasia, gender affirmation surgery, sexual mental health, and female sexual dysfunction. Aim To evaluate baseline and postbootcamp understanding and trust in these domains. Methods In 2023, 28 of 31 urologists currently enrolled in SMSNA-endorsed fellowships participated in a 3.5-day training bootcamp in Minneapolis, Minnesota. Participants were asked to complete pre- and postbootcamp surveys. The bootcamp curriculum offered American Urological Association guidelines and case-based lectures, hands-on clinical training with cadavers (penile surgery) and models (collagenase training), and interaction with industry. Outcomes Changes in knowledge, independence, and trust in performing the procedures, as well as billing issues and feedback for future bootcamps. Results Prebootcamp surveys revealed vastly varied residency experience. Reported time with an expert faculty member was greatest for benign prostatic hyperplasia and least for female sexual dysfunction, gender affirmation surgery, and low testosterone. The lowest prebootcamp confidence in performing surgery independently was for penile grafting procedures and elevating the neurovascular bundle. Postbootcamp results revealed several areas of significant improvement in confidence (P ≤ .03): intralesional injections for Peyronie’s disease, manual modeling, penile plication, penile grafting procedures, and elevating the neurovascular bundle. There was a trend for improved confidence with the insertion of inflatable (P = .05) and semirigid (P = .08) penile prostheses. Nonsignificant improvement occurred in artificial urinary sphincter surgery (P = .12). Participants graded the bootcamp very highly and requested that next year’s bootcamp have more content on female sexual dysfunction, male incontinence, and low testosterone, as well as more hands-on skills sessions and case-based lecture formats. Clinical Implications Offering a bootcamp with hands-on instruction could significantly improve urologists’ knowledge and confidence. Strengths and Limitations As the main strength, this study was the first specialized bootcamp for urologists in the subject of men’s health, taking into account hands-on and cadaver laboratories, as well as highlighting industrial and pharmaceutical products. The small sample size was the major limitation. Conclusions Current SMSNA fellows present with varied levels of experience and confidence across sexual health domains. Notable confidence improvements were seen with topics that combined didactic lectures with hands-on trainings.
Significant Geographic Variation in Access to Certified Collagenase Clostridium histolyticum Injectors for Peyronie’s Disease Throughout the United States
Sischka, Michael, Krueger, Alexander , Köhler, Tobias S. , Ziegelmann, Matthew , Parikh, Niki , Helo, Sevann

Urology Practice | October 3, 2023 | Volume: 10 | Issue: 6 | Pages: 680-687

10.1097/upj.0000000000000456 Get It

Botox for Erectile Dysfunction
Habashy, Engy, Köhler, Tobias S.

The Journal of Sexual Medicine | April 9, 2022 | Volume: 19 | Issue: 7 | Pages: 1061-1063

10.1016/j.jsxm.2022.03.216 Get It

Penile Prosthesis Infection: Myths and Realities
Hebert, Kevin , Köhler, Tobias S. , Hebert, Kevin J

The World Journal of Men's Health | March 22, 2019 | Volume: 37 | Issue: 3 | Pages: 276

10.5534/wjmh.180123 Get It

Scrotoplasty at Time of Penile Implant is at High Risk for Dehiscence in Diabetics
Sulaver, Randy, Kottwitz, Michael, Frederick, Luke , Dynda, Danuta, Köhler, Tobias S. , Gupta, Nikhil , Welliver, Charles

The Journal of Sexual Medicine | March 6, 2019 | Volume: 16 | Issue: 4 | Pages: 602-608

10.1016/j.jsxm.2019.02.001 Get It

ABSTRACT Introduction Scrotoplasty has become a common practice during insertion of penile prosthesis, improving patient perception of penile length. Previous reports on scrotoplasty outcomes have only focused on the perceived benefits. The risk of wound complications after scrotoplasty is unknown. Aim Identify wound complications and associated risk factors of scrotoplasty with insertion of penile prosthesis. Methods A retrospective review of a single-surgeon series (T.S.K.) of patients who underwent scrotoplasty with initial insertion of inflatable penile prosthesis (IPP) was performed from 2009–2014. Surgical outcomes and wound complications after scrotoplasty were examined, along with patient information, including basic demographics, medical comorbidities, and perioperative data. Main Outcome Measures Studied outcomes included rate of wound complications after scrotoplasty and IPP insertion and identification of risk factors for wound dehiscence. Results Of the 103 scrotoplasties performed during the study period, a total of 15 had mild, moderate, or major wound dehiscence. Of these 15 cases, 9 had mild dehiscence and 5 cases had moderate dehiscence and required stitches to be placed in clinic to reinforce the closure. 1 patient had a major dehiscence requiring a return to the operating room for a washout, with exchange of IPP to malleable prosthesis. Multiple risk factors for wound dehiscence were found, including diabetes (odds ratio 6.1, CI 1.5, 25.0, P = .0129) and scrotoplasty technique (odds ratio 4.9, CI 1.2, 8.6, P = .003). Other examined variables, including patient age, Peyronie’s disease, hypertension, intraoperative penile modeling, smoking, and device manufacturer, were not associated with wound dehiscence. Clinical Implications Patients with diabetes and scrotoplasties performed via V-Y plasty are more likely to experience wound dehiscence. Strengths & Limitations Strengths include a single surgeon, thus lending continuity of skill and technique, a consecutive series, and 100% short-term follow-up. Limitations include retrospective design, single institution series, and lack of long-term follow-up. Conclusion Although scrotoplasty can improve patient satisfaction with IPP, scrotoplasty can lead to increased patient morbidity. Diabetic patients are at increased risk for wound complication after scrotoplasty.
334 Post Priapism PROPPER Data Shows Good Satisfaction and Functional Outcomes
Wallen, J.J., Kansas, Bryan, Köhler, Tobias S. , Karpman, Edward , Christine, Brian, Khera, Mohit , Jones, LeRoy, Bennett, Nelson , Rhee, Eugene, Brant, William O. , Bella, Anthony J, Henry, Guillaume

The Journal of Sexual Medicine | February 3, 2018 | Volume: 15 | Issue: Supplement_1 | Pages: S90-S91

10.1016/j.jsxm.2017.11.214 Get It