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230 citation(s) found for "Kohler, T".

(030) Size Matters? Relationship Between IPP Device Size and Satisfaction in Both Patient and Partner
Hashemi, Milad Bonakdar , Almohtasib, J, Pinkhasov, Alexandr, Helo, S, Ziegelmann, M., Kohler, T, Almohtasib, Jamil , Guillen, A, Helo, S

Mayo Clinic

The Journal of Sexual Medicine | December 9, 2025 | Volume: 22 | Issue: Supplement_4 | Pages: No page available

10.1093/jsxmed/qdaf320.030 Get It

Abstract Introduction While previous research has explored overall satisfaction following IPP surgery, the specific relationship between final implant length and perceived satisfaction in both patients and their partners remains underexplored. Objective We aim to evaluate the association between IPP cylinder length and postoperative satisfaction in both patients and their sexual partners, and to determine whether perceived adequacy of length restoration correlates with overall sexual and psychosocial outcomes. Methods We initiated a registry of patients undergoing surgery for placement of a PP. After consent, perioperative study assessments and follow-ups were conducted. After surgery, patients were directed to fulfill a survey at 6 months and 12 months. Patients who fulfilled both items were included in the analysis. Results A total of 237 patients had a PP placement and completed the first survey and 158 the 12-month survey. The median IPP length was 22 cm (20-23). At 6 months, .189 patients (79.7%) reported moderate to high satisfaction, and this positive response was sustained at 12-months (n=132; 83.5%). At 6 months, 178 patients (75.1%) reported moderate to high partner’ satisfaction, and this positive response was sustained at 12-months (n=129; 81.6%). A regression analysis at 6 months showed a correlation of r=0.148 (p=0.029) and r=0.027 (p=0.743) at 12 months, implying that while significant statistically, it is not strongly related, and other factors are likely contributing to the response. Partner satisfaction showed a correlation of r=0.184 (p=0.008) at 6 months and r=0.032 (p=0.702) at 12 months, again showing no causal relationship between length of the IPP device with perceived satisfaction. A secondary analysis was performed in patients who had prostatectomy and were using vacuum devices before IPP placement (n=51). Of these, 12 (5.1%) reported decreased penile size during pre-op counseling. The median IPP length was 22 cm (19.5-23) and 21 cm (19.6-22) among patients who reported a decrease in size before IPP placement (p=0.574). There was no correlation between this statement and IPP length (p=0.572), nor satisfaction levels in both patients r=0.180 (p=0.221) and partners r=0.015 (p=0.921) at 6 months or 12 months r=0.060 (p=0.701) & r=0.078 (p=0.636). Conclusions IPP length showed a significant correlation but a weak association with patient and partner satisfaction. Our findings underscore the need for a multimodal approach when looking for patient and partner satisfaction and not only to perceived cosmesis. Comprehensive preoperative counseling should address these multidimensional aspects to better align expectations and outcomes. Disclosure Yes, this is sponsored by industry/sponsor: Coloplast Clarification: Industry funding only - investigator initiated and executed study
(028) Changing the Status Quo: A Randomized Controlled Trial Comparing Long-Acting and Short-Active Local Anesthetics for Postoperative Pain Control After Penile Prosthesis Placement
Almohtasib, J, Anians, Wyatt, Parikh, Niki , Kohler, T, Ziegelmann, M., Almohtasib, Jamil , Kohler, Tobias S , Helo, Sevann , Yang, D

Mayo Clinic

The Journal of Sexual Medicine | December 9, 2025 | Volume: 22 | Issue: Supplement_4 | Pages: No page available

10.1093/jsxmed/qdaf320.028 Get It

Abstract Introduction The opioid epidemic has encouraged increased efforts to minimize postoperative opioid use, particularly in urologic procedures. While short-acting local anesthetics are often used in inflatable penile prosthesis (IPP) placement, their effects diminish quickly, potentially leading to higher opioid requirements. Liposomal bupivacaine (LB), a long-acting local anesthetic, may reduce opioid requirements, but its cost and limited prospective data in IPP patients warrant further investigation. Objective To compare the efficacy of long-acting liposomal bupivacaine with short-acting ropivacaine in reducing postoperative pain and opioid consumption following inflatable penile prosthesis (IPP) placement. Methods This randomized controlled trial enrolled adult males undergoing primary IPP placement via a penoscrotal approach. Participants were randomized to receive either LB (20 mL Exparel + 20 mL bupivacaine 0.25%) or ropivacaine (40 mL of 0.5%) as part of a standardized multimodal analgesia protocol. All patients received acetaminophen, gabapentin, and meloxicam perioperatively, with oxycodone prescribed as needed postoperatively (figure 1). The primary outcome was postoperative opioid consumption measured in oral morphine equivalents (OME). Secondary outcomes included pain and anxiety scores assessed on postoperative days (POD) 3, 7, and 14 using visual analog scales. Results Only 13 patients completed the study due to difficulties in recruitment (9 in the long-acting group, 4 in the short-acting group). The long-acting group demonstrated consistently lower opioid consumption at all follow-up points. On POD 3, the median cumulative OME was 7.5 vs. 41.25 in the short-acting group. By POD 14, cumulative OME was 15.0 vs. 93.75. (Figure 2) Pain scores followed a similar pattern, with the long-acting group reporting lower median scores on POD 3 (4 vs. 6) and POD 7 (4 vs. 6). Anxiety scores were also lower in the long-acting group throughout the follow-up. Use of non-opioid analgesics was similar across both groups. Conclusions Despite a limited sample size, this trial showed consistent trends favoring LB over ropivacaine for reducing opioid use and pain following IPP placement. These findings suggest potential clinical benefit but require validation in larger, multicenter studies. The trial also illustrates the difficulty of conducting randomized studies when institutional practices strongly favor one approach. Disclosure Any of the authors act as a consultant, employee or shareholder of an industry for: Endo pharmaceuticals.
Cuff conundrum: inflatable penile prosthesis surgery in men who have transcorporal artificial urinary sphincters
Ungerer, Garrett , Kohler, T, Ziegelmann, M, Elliott, Daniel S. , Helo, Sevann , Ziegelmann, Matthew J, Elliott, Daniel, Ziegelmann, M

Mayo Clinic

The Journal of Sexual Medicine | December 5, 2025 | Volume: 23 | Issue: 2 | Pages: No page available

10.1093/jsxmed/qdaf353 | PMID 41498520 Get It

Abstract Background Concerns exist regarding inflatable penile prosthesis (IPP) placement after transcorporal artificial urinary sphincter (TC-AUS) surgery due to potential risk of damaging the AUS cuff during corporal dilation and device placement. Aim To evaluate perioperative complications, infections, revision rates, and device longevity in patients undergoing IPP placement following prior TC-AUS surgery. Methods We present a case series of men who underwent IPP surgery with an existing TC-AUS in place. A retrospective review was conducted of all patients who underwent TC-AUS placement at a single tertiary institution between 2015 and 2025. Patients who subsequently received IPP surgery were identified. Standard IPP techniques were used with additional precautions to protect the AUS, including use of electrocautery instead of sharp dissection and contralateral reservoir placement. Demographics, operative details, complications, infections, revision events, and device survival were collected through review of operative notes and patient records. Outcomes Primary outcomes included intra-operative difficulties, perioperative complications, infection and erosion rates, and revision or failure rates for both the TC-AUS and IPP devices. Results Among 757 TC-AUS placements, 17 patients subsequently underwent IPP surgery. Seven patients (41%) had a history of pelvic irradiation. The median operative time for IPP placement was 83 minutes (interquartile range [IQR] 68-87), and median follow-up was 31.5 months (IQR 11.2-40.6). All reservoirs were positioned contralateral to the AUS reservoir. A 12 Fr catheter was left postoperatively in 10 patients (59%) for <24 hours. Proximal corporal dilation was noted to be challenging in 3 patients (18%) but dilation was completed without cuff injury or corporal perforation. One patient (6%) had TC-AUS cuff erosion 9.5 months after IPP surgery; one patient (6%) experienced TC-AUS device infection 11.5 months after IPP surgery when his AUD pump eroded through the scrotum. Four patients (24%) developed AUS mechanical failure due to cuff leak at a median of 31.9 months after IPP placement (39.9 months post-AUS). Clinical implications IPP implantation following TC-AUS can be performed safely using careful surgical technique, though vigilance for later AUS mechanical failure is warranted. Strengths and limitations This study represents one of the largest single-institution series evaluating IPP after TC-AUS and includes detailed operative and follow-up data. However, its retrospective design, small cohort size, and limited follow-up duration restrict generalizability. Conclusion IPP placement after TC-AUS appears safe, with low infection and erosion rates, though AUS cuff leaks may occur more frequently than when either device is implanted alone.
The Role of Modality-specific Brain Regions in Statistical Learning: Insights from Intracranial Neural Entrainment
Herrera-Chaves, Daniela, Abbass, Mohamad , Muller, Lyle , Martí, Ana Suller , Batterink, Laura , Batterink, Laura , Gilmore, Greydon , Mirsattari, Seyed M. , Köhler, Stefan

Mayo Clinic

Journal of Cognitive Neuroscience | November 20, 2025 | Volume: 38 | Issue: 5 | Pages: 906-926

10.1162/jocn.a.2411 | PMID 41264482 Get It

Abstract Statistical learning (SL) is a powerful mechanism that supports the ability to extract regularities from environmental input. Yet, its neural underpinnings are not well understood. Previous EEG studies of SL have found that the brain tracks regularities by synchronizing its activity with the presented stimuli—a phenomenon known as neural entrainment. However, EEG lacks the spatial resolution to unveil the specific brain regions where this process takes place. In our study, 18 patients with drug-resistant epilepsy who were implanted with intracranial electrodes for presurgical investigation listened to a continuous speech stream containing embedded trisyllabic words. Neural entrainment was measured at the syllable and word frequencies, with the latter providing an online index of learning. SL was further assessed through both explicit and implicit behavioral measures. Behaviorally, we found evidence of learning at the group level in both tasks. At the neural level, our analyses revealed three temporal tuning profiles: 25% of contacts showed entrainment at the syllable frequency, 11% of contacts showed entrainment at both the word and syllable frequencies, and 4% showed entrainment only to the word frequency. Word entrainment, indicating sensitivity to word structures, was most commonly found in auditory and language-related regions, including insula, middle temporal gyrus, superior temporal gyrus, and supramarginal gyrus. In contrast, evidence for neural entrainment in the hippocampus was weak. Overall, these results support the idea that speech-based SL is largely supported by modality-specific brain regions.
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.

Mayo Clinic

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

10.1093/jsxmed/qdaf319 | PMID 41240014 Get It

Ceramide test in patients with erectile dysfunction to assess cardiovascular risk
Guillén-Lozoya, A.H. , Dumbrava, Mihai, Bonakdarhashemi, Milad, Kemble, Jayson , Ziegelmann, Matthew , Vasile, Vlad C. , Kopecky, Stephen L. , Köhler, Tobias , Lozoya, Andres Guillen , Helo, Sevann , Collins, Scott, Vasile, Vlad , Kopecky, Stephen, Collins, Scott

Mayo Clinic

The Journal of Sexual Medicine | October 5, 2025 | Volume: 22 | Issue: 10 | Pages: 1750-1756

10.1093/jsxmed/qdaf182 | PMID 41046349 Get It

Abstract Background Erectile dysfunction (ED) is a known precursor and sequela of cardiovascular disease (CVD), with ED severity predicting CVD severity. Aim This study aimed to evaluate the utility of ceramide levels in patients with ED. Methods We initiated ceramide testing in all patients with ED. We retrospectively analyzed ceramide levels from electronic records and stratified by severity of symptoms using the erectile function domain of the International Index of Erectile Function (IIEF). Outcomes The study aimed to determine whether abnormal ceramide levels were associated with ED severity and increased cardiovascular risk. Results Three hundred and fifty-four patients were reviewed, of whom 253 (71.5%) had moderate or higher ED. A statistically significant difference in abnormal ceramide values was found in patients with moderate to severe symptoms, and the odds of getting an abnormal ceramide test were increased based on the IIEF scoring alone (odds ratio [OR] 2.3 [1.04-5.12]; P-value = .034). Clinical Implications Serum ceramide testing could be beneficial in identifying cardiovascular risk in men with ED, potentially prompting cardiac referrals and lifestyle modifications. Strengths and Limitations The strengths of this study include a large sample size and the use of a well-established scale, while the limitations include the retrospective nature of the study and the need for further research to validate the findings. Conclusion Patients undergoing management for ED may benefit from serum ceramide testing and subsequent cardiac referral.
A survey to assess practice patterns among clinicians administering collagenase Clostridium histolyticum for Peyronie’s disease
Parikh, Niki , Sischka, Michael, Gross, Martin , Yafi, Faysal A. , Ziegelmann, M., Vasdev, Ranveer , Kohler, Tobias S

Mayo Clinic

The Journal of Sexual Medicine | October 3, 2025 | Volume: 23 | Issue: 1 | Pages: No page available

10.1093/jsxmed/qdaf300 | PMID 41182293 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

Mayo Clinic

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

10.1093/jsxmed/qdaf223 | PMID 40973694 Get It

Patient-Reported Barriers to Sex Therapy for Men Referred by Their Urologist: A Pilot Study
Jefferson, Francis A. , Sischka, Michael, Vencill, Jennifer A. , Ziegelmann, Matthew , Britton, Cameron J. , Köhler, Tobias , Collins, C. Scott, Jefferson, Francis, Vencill, Jennifer, Britton, Cameron, Findlay, Bridget, Helo, Sevann , Dumbravă, Mihai , Findlay, Bridget L.

Mayo Clinic

Journal of Sex & Marital Therapy | August 23, 2025 | Volume: 51 | Issue: 7 | Pages: 758-765

10.1080/0092623x.2025.2551838 | PMID 40848043 Get It