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114 citation(s) found for "Trost, Landon".

Response to Commentary on Contemporary Considerations in a Man with Low Sex Drive
Wittmann, Daniela , Khera, Mohit , Trost, Landon , Mulhall, John P.

Mayo Clinic

The Journal of Sexual Medicine | September 17, 2020 | Volume: 17 | Issue: 11 | Pages: 2311-2311

10.1016/j.jsxm.2020.08.014 | PMID 32952048 Get It

Discrepancy between Post-Vasectomy Semen Analysis Recommendation and Practice Patterns in the Post-2012 American Urological Association Guideline Era
Manka, Madeleine, Miller, Adam , Sharma, Vidit , Butaney, Mohit , Trost, Landon , Ziegelmann, Matthew , Manka, Madeleine G

Mayo Clinic

Journal of Urology | August 17, 2020 | Volume: 204 | Issue: 6 | Pages: 1312-1317

10.1097/ju.0000000000001330 | PMID 32799727 Get It

Intraoperative Use of Betadine Irrigation is Associated With a 9-Fold Increased Likelihood of Penile Prosthesis Infection: Results From a Retrospective Case-Control Study
Manka, Madeleine, Yang, David Y. , Andrews, Jack R. , Hebert, Kevin , Köhler, Tobias , Trost, Landon , Manka, Madeleine G, Yang, David, Andrews, Jack, Chalmers, Brian , Hebert, Kevin J , Yang Md, David , Chalmers, Brian P.

Mayo Clinic

Sexual Medicine | June 26, 2020 | Volume: 8 | Issue: 3 | Pages: 422-427

10.1016/j.esxm.2020.05.010 | PMID 32601002 Get It

Abstract Introduction Infection remains a persistent complication of penile prosthesis (PP) surgery. Despite popularity of Mulcahy’s PP washout protocol, Betadine has known tissue toxicity. Aim We evaluated PP infection rate based on the type of intraoperative irrigation used, ½ strength Betadine vs vancomycin/gentamicin. Methods We reviewed a prospective database of men undergoing primary, revision, and salvage PPs. No other changes to operative or perioperative techniques occurred after the change in irrigation solution. Univariate and logistic regression analyses were used to evaluate differences in infection rate with use of Betadine vs vancomycin/gentamicin irrigation. Potential confounders were reviewed. Main Outcome Measure The primary outcome was rate of PP infection before and after change of intraoperative irrigation. Results From 2014 to 2018, 217 patients underwent PP placement at our institution by a single surgeon; of whom, 21 (9.7%) experienced an infection (primary = 10 [7.1%], revision = 11 [17.19%], salvage = 0 [0%]). Overall, 152 (70%) received irrigation with Betadine and 65 (30%) with Vancomycin/Gentamicin. Univariate analysis demonstrated significantly increased infection rates with Betadine irrigation (odds ratio [OR]: 4.64, P = .006) and with revision surgery (OR: 2.68, P = .02). Significance of increased infection rate with Betadine was maintained (OR: 9.3; P = .025) after controlling for age, body mass index, Charlson comorbidity index, smoking, diabetes, primary vs revision/salvage, prior penile surgery, use of ectopic reservoir, and adjunctive glanulopexy. Conclusions Changing from intraoperative Betadine to vancomycin/gentamicin solution dramatically reduced infection rates among men undergoing PP placement in both primary and revision cases. We hypothesize that differences in infection rate may relate to the relative toxicity or non-sterile nature of Betadine. Manka MG, Yang D, Andrews J, et al. Intraoperative Use of Betadine Irrigation is Associated With a 9-Fold Increased Likelihood of Penile Prosthesis Infection: Results From a Retrospective Case-Control Study. Sex Med 2020;8:422–427.
Prevalence and Predictors of Climacturia and Associated Patient/Partner Bother in Patients with History of Definitive Therapy for Prostate Cancer
Jimbo, Masaya , Alom, Manaf, Pfeifer, Zachary, Haile, Eiftu , Stephens, Dane, Gopalakrishna, Ajay , Ziegelmann, Matthew , Trost, Landon , Köhler, Tobias , Ziegelmann, Matthew J, Viers, Boyd R. , Trost, Landon W

Mayo Clinic

The Journal of Sexual Medicine | March 13, 2020 | Volume: 17 | Issue: 6 | Pages: 1126-1132

10.1016/j.jsxm.2020.02.016 | PMID 32179016 Get It

Abstract Background Climacturia is an under-reported complication of definitive therapy for prostate cancer (PCa) - that is, radical prostatectomy (RP) and/or radiation therapy (RT). Aim We sought to identify the prevalence and predictors of climacturia and associated patient/partner bother in patients with and without prior PCa treatment. Methods We analyzed a database of patients who presented to our Men's Health clinic and filled out a questionnaire related to sexual function and pertinent medical histories. The prevalence of climacturia and associated patient/partner bother in patients with/without prior RP/RT was calculated. Univariable and multivariable logistic regressions were performed to identify predictors associated with climacturia and patient/partner bother. Outcomes The primary outcomes were the prevalence and predictors of climacturia and associated patient/partner bother in patients with/without history of definitive PCa treatment. Results Among 1,117 patients able to achieve orgasm, 192 patients (17%) had prior history of definitive therapy for PCa (RP alone = 139 [72%]; RT alone = 22 [11%]; RP + RT = 31 [16%]). Climacturia was reported by 39%, 14%, 52%, and 2.4% of patients with history of RP alone, RT alone, RP + RT, and neither RP nor RT, respectively (P < .05 between all groups). 33 to 45 percent of patients with climacturia noted significant patient/partner bother. Factors significantly associated with climacturia were prior RP, prior RT, history of other prostate surgery, and erectile dysfunction, although erectile dysfunction was not significant on multivariable analysis. Significant reduction in climacturia prevalence was noted for patients who were ≥1 year out from RP, compared with patients who were <1 year out. Among patients with prior RP/RT, stress urinary incontinence was associated with increased risk of climacturia, whereas diabetes was associated with decreased risk. No factors were associated with patient/partner bother. Among patients with prior RP, nerve-sparing technique did not predict presence of climacturia but was associated with reduced patient/partner bother. Clinical translation Given significant prevalence of climacturia and associated patient/partner bother, patients should be counseled on the risk of climacturia before undergoing RP/RT. Strengths and limitations Strengths include the large study population and the focus on both RP and RT. Limitations include the facts that this is a single-institution study that primarily relies on patients’ subjective reporting and that the study population may not represent the general population. Conclusions Climacturia affects a significant proportion of patients with history of RP/RT for PCa, and many patients and their partners find this bothersome.
Contemporary Considerations in the Pathophysiology of Low Sex Drive in Men
Wittmann, Daniela , Khera, Mohit , Trost, Landon , Mulhall, John P.

Mayo Clinic

The Journal of Sexual Medicine | February 27, 2020 | Volume: 17 | Issue: 6 | Pages: 1049-1052

10.1016/j.jsxm.2020.02.001 | PMID 32115396 Get It

Sperm retrieval rates in non‐mosaic Klinefelter patients undergoing testicular sperm extraction: What expectations do we have in the real‐life setting?
Boeri, Luca , Palmisano, Franco , Sibona, M. , Franceschelli, Alessandro , Ruíz-Castañé, Eduard, Sarquella‐Geli, Joaquim, Bassas‐Arnau, Lluís, Scroppo, Fabrizio Ildefonso , Saccà, Antonino , Timpano, M. , Gadda, Franco , Trost, Landon , Colombo, Fulvio , Montorsi, Francesco , Sánchez‐Curbelo, Josvany , Salonia, Andrea , Montanari, E. , Larcher, Alessandro , Capogrosso, Paolo , Salonia, Andrea , Preto, Mirko , Gentile, Giorgio , Falcone, Marco , Ceruti, C. , Rolle, Luigi , Gontero, Paolo

Mayo Clinic

Andrology | January 30, 2020 | Volume: 8 | Issue: 3 | Pages: 680-687

10.1111/andr.12767 | PMID 31999885 Get It

AbstractBackgroundA recent meta‐analysis (Human Reproduction Update 23, 2017 and 265) reported positive sperm retrieval rates (SRR) in 50% of patients with Klinefelter syndrome (KS) undergoing testicular sperm extraction (TESE). However, these results do not reflect the rates of SR that we observe in clinical practice. We assessed the rate and potential predictors of SR in Klinefelter patients in the real‐life setting.Materials and MethodsWe reviewed clinical data of 103 KS men who underwent TESE between 08/2008 and 03/2019 at five tertiary referral Andrology centers. Patients underwent testis ultrasound, hormonal evaluation, and genetic testing. All patients were azoospermic based on the 2010 WHO reference criteria. Conventional TESE (cTESE) or microsurgical TESE (mTESE) was performed based on the surgeon's preference. We used descriptive statistics and logistic regression models to describe the whole cohort.ResultsMedian (IQR) patient's age was 32 (24‐37) years. Baseline serum FSH and total testosterone levels were 29.5 (19.9‐40.9) mUI/mL and 3.8 (2.5‐11.0) ng/mL, respectively. Conventional TESE and mTESE were performed in 38 (36.5%) and 65 (63.5%) men, respectively. The sperm retrieval rate was 21.4% (22/103 men). Fifteen patients used spermatozoa for ICSI and five ended in live birth children. Patients with positive SR were similar to those with a negative TESE in terms of clinical, hormonal, and procedural parameters (all P > .05). Logistic regression analyses confirmed the lack of association between clinical, hormonal, and procedural parameters with SR outcome.DiscussionGiven the conflicting results in the literature regarding SRR in KS, patients should be carefully counseled regarding TESE outcomes based on data from published literature and local results.ConclusionsIn the real‐life setting, we observed a lower SRR (21.4%) than that reported in meta‐analyses in our cohort of KS patients. No associations between clinical, hormonal, and procedural variables with TESE success were found.
Peyronie's Disease Intervention Studies: An Exploration of Modern-Era Challenges in Study Design and Evaluating Treatment Outcomes
Ziegelmann, Matthew , Trost, Landon , Levine, Laurence A. , Ziegelmann, Matthew J, Russo, Giorgio Ivan

Mayo Clinic

The Journal of Sexual Medicine | January 10, 2020 | Volume: 17 | Issue: 3 | Pages: 364-377

10.1016/j.jsxm.2019.11.271 | PMID 31932258 Get It

AbstractIntroductionPeyronie's disease (PD) is characterized by pain, deformity, sexual dysfunction, and psychological bother. Several treatments are available with varying levels of efficacy, and significant limitations exist with the currently available literature.AimTo explore modern-era methodological challenges inherent to PD research as they pertain to intervention studies.MethodsWe performed a critical review of the PD intervention literature to identify common methodological challenges with emphasis on aspects of patient assessment and treatment outcomes, study design, and statistical analysis. The key objective was to provide an impetus on which to build future research protocols, rather than focus on weaknesses with any individual studies.Main Outcome MeasureExpert opinion was used to summarize limitations with commonly reported objective outcomes such as penile curvature, girth, and length along with imaging modalities and objective questionnaires. Appropriate study design and statistical analysis were also reviewed to discuss common pitfalls in the PD literature.ResultsThere are multiple shortcomings inherent to studying objective PD outcomes such as penile curvature, girth, and length. These include lack of standardized protocols for preintervention and postintervention assessment, interobserver and intraobserver variability, and lack of consistent definitions for what defines an objective outcome as clinically “meaningful” for patients. Similarly, imaging studies including penile ultrasound are subject to marked variation, thereby limiting their utility to measure predefined primary or secondary study outcomes including cavernosal artery hemodynamics and penile plaque size. Objective and validated questionnaires such as the Peyronie's Disease Questionnaire and International Index of Erectile Function require that patients have recently engaged in sexual activity, which is challenging for many patients as a result of penile deformity with PD. Finally, careful study design and statistical analysis (including appropriate study power) are imperative to ensure reliable results. Current shortcomings in the majority of studies contribute to the low level of evidence available for most PD interventions.Clinical ImplicationsFuture PD intervention studies should focus on optimizing study design and statistical analysis. Furthermore, authors must incorporate standardized protocols for assessing preintervention and postintervention outcomes.Strength & LimitationsThe current analysis and recommendations for future study are based on the expertise and opinion of the manuscript authors.ConclusionMultiple areas of weakness in study design, statistical analysis, and patient outcomes assessment limit the reliability of data derived from PD intervention studies in the modern era. The global themes identified herein should serve as a basis upon which to build future research protocols.
384 Likelihood of Subsequent Penile Surgery for Patients with Peyronie's Disease Previously Treated with Collagenase Clostridium Histolyticum or Penile Surgery
Trost, Landon , Huang, H., Burudpakdee, Chakkarin , Hu, Yiqun , Han, Xu

Mayo Clinic

The Journal of Sexual Medicine | January 1, 2020 | Volume: 17 | Issue: Supplement_1 | Pages: S109-S109

10.1016/j.jsxm.2019.11.229 Get It

302 Outcomes Related to Penile Prosthesis Reservoir Removal: A Multi-institutional Experience
Clavell-Hernández, Jonathan, Supak, Dylan N., Trost, Landon , Köhler, Tobias , Henry, G.D., Loeb, Aram, Cornell, Robert J., Wang, R., Wang, R.

Mayo Clinic

The Journal of Sexual Medicine | January 1, 2020 | Volume: 17 | Issue: Supplement_1 | Pages: S71-S72

10.1016/j.jsxm.2019.11.199 Get It

301 Outcomes of Modified Glans Hypermobility Correction at Time of Initial IPP
Dodge, Nicole, Wen, Lexiaochuan , Houlihan, Matthew, Köhler, Tobias , Trost, Landon

Mayo Clinic

The Journal of Sexual Medicine | January 1, 2020 | Volume: 17 | Issue: Supplement_1 | Pages: S71-S71

10.1016/j.jsxm.2019.11.198 Get It