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Featured researches published by Boyd Viers.


The Journal of Urology | 2017

MP46-05 PREDICTING URETHRAL ATROPHY IN PATIENTS UNDERGOING PRIMARY PLACEMENT OF ARTIFICIAL URINARY SPHINCTER

Matthew Ziegelmann; Brian Linder; Boyd Viers; Laureano Rangel; Marcelino Rivera; Daniel Elliott

INTRODUCTION AND OBJECTIVES: Long-term data on effects of testosterone therapy (TTh) on urinary function in hypogonadal men published so far are from observational studies without a control group. We present registry data including an untreated hypogonadal control group. METHODS: Registry study in 656 men with testosterone 350 ng/dL and hypogonadal symptoms. 360 received TU 1000 mg/12 weeks following an initial 6-week interval (T-group). 296 men opted against TTh and served as controls (CTRL). 8-year data are presented. Changes over time between groups were compared by a mixed effects model for repeated measures with a random effect for intercept and fixed effects for time, group and their interaction. Changes were adjusted for age, weight, waist circumference, blood pressure, fasting glucose, lipids and quality of life to account for baseline differences between groups. In order to further validate results, propensity matching was performed for baseline age, BMI, and waist circumference. 82 men in each group fulfilled criteria. RESULTS: Total group: mean age was 57.4 7.3 years in the T-group and 64.8 4.3 in CTRL, median follow-up time 7 years for both. In the T-group, IPSS decreased from 6.4 4.0 to 2.1 1.0 with a change from baseline of 5.0 points. In CTRL, IPSS increased from 4.5 2.0 to 6.5 2.6 after 8 years by 1.8 points (p<0.0001 for both). Residual urine volume decreased from 47.3 22.8 to 13.7 4.6 mL in the T-group and increased from 48.3 16.3 to 64.5 22.2 in CTRL. Prostate volume increased from 29.2 10.4 to 31.1 11.5 mL in the T-group (p<0.0001) and fell from 34.5 5.9 to 33.5 12.0 in CTRL (NS). Propensity-matched group: mean age was 61.7 5.1 years in the T-group and 61.6 2.9 in CTRL, median follow-up time 8 years in the T-group and 7 in CTRL. In the T-group, IPSS decreased from 7.4 4.2 to 2.0 0.9 with a change from baseline of 5.4 points. In CTRL, IPSS increased from 4.3 2.3 to 7.0 2.6 after 8 years by 1.9 points (p<0.0001 for both). Residual urine volume decreased from 50.6 23.6 to 14.0 4.7 mL in the T-group and increased from 45.7 16.4 to 64.6 16.7 in CTRL. Prostate volume increased from 31.4 12.0 to 33.2 12.7 mL in the T-group (p<0.0001) and from 33.4 6.2 to 33.6 11.0 in CTRL (NS). CONCLUSIONS: Urinary function is improved and preserved for a prolonged period of time by TTh in hypogonadal men and deteriorates in untreated hypogonadal men. The observed changes seem independent of prostate volume.


The Journal of Urology | 2017

PD31-07 CONCURRENT PENILE TRACTION THERAPY IN MEN UNDERGOING COLLAGENASE CLOSTRIDIUM HISTOLYTICUM FOR PEYRONIE’S DISEASE

Matthew Ziegelmann; Boyd Viers; Brian Montgomery; Joshua Savage; Landon Trost

& physical 11 6; pain 5 6; bother 7 4. Theses trends are similar to PDQ scores reported in the phase 3 Xiaflex studies (IMPRESS I & II). On MVA, higher CES-D scores were related to the inability to penetrate (b1⁄40.18, p1⁄40.04). Lower SEAR total scores were related to inability to penetrate (b1⁄4-0.30 p1⁄40.01) and greater curvature (b1⁄40.25, p1⁄40.04). Higher PDQ Bother scores were related to greater curvature (b1⁄40.33, p1⁄40.02), and marginally related to perceived loss of penile length (b1⁄40.24, p1⁄40.06) and inability to penetrate (b1⁄40.22 p1⁄40.09). CONCLUSIONS: The data reinforce the significant prevalence of depression as well as psychosexual and relationship health in degree to men with ED. Common predictors of psychological and relationship variables were inability to penetrate, greater curvature, and perceived loss of penile length. Quality of life questionnaires into clinical practice might benefit some patients.


The Journal of Urology | 2015

MP6-05 THE ASSOCIATION OF PREOPERATIVE NEUTROPHIL TO LYMPHOCYTE RATIO WITH ONCOLOGIC OUTCOMES FOLLOWING RADICAL PROSTATECTOMY FOR PROSTATE CANCER

Vidit Sharma; Patrick Cockerill; Boyd Viers; Laureano Rangel; Rachel Carlson; R. Jeffrey Karnes; Matthew Tollefson


The Journal of Urology | 2015

MP88-12 EFFECTS OF RADIATION THERAPY ON DEVICE SURVIVAL AMONG INDIVIDUALS WITH ARTIFICIAL URINARY SPHINCTERS

Marcelino Rivera; Matthew Ziegelmann; Brian Linder; Boyd Viers; Laureano Rangel; Daniel Elliott


The Journal of Urology | 2016

MP09-16 CONTEMPORARY MAPPING OF POST-PROSTATECTOMY PROSTATE CANCER RELAPSE WITH C-11 CHOLINE PET AND MULTIPARAMETRIC MRI

Ilya Sobol; Rimki Haloi; Sean Park; Boyd Viers; Brian J. Davis; Lance Mynderse; Stephen Boorjian; Houston Thompson; Matthew Tollefson; Matthew Gettman; Adam T. Froemming; Val Lowe; Fernando Quevedo; Igor Frank; J. Karnes; Eugene Kwon


The Journal of Urology | 2015

MP29-16 INCIDENCE AND RISK FACTORS OF URETEROENTERIC ANASTOMOTIC STRICTURE FOLLOWING RADICAL CYSTECTOMY WITH URINARY DIVERSION

Boyd Viers; Amy E. Krambeck; Marcelino Rivera; R. Jeffrey Karnes; Robert Tarrell; Prabin Thapa; Matthew Tollefson; Stephen Boorjian


The Journal of Urology | 2015

MP29-15 CLINICAL OUTCOMES OF URETEROILEAL ANASTOMOTIC STRICTURE MANAGEMENT

Marcelino Rivera; Boyd Viers; Patrick Cockerill; Robert Tarrell; Prabin Thapa; Igor Frank; Stephen Boorjian; Amy E. Krambeck


The Journal of Urology | 2016

PD12-04 MALIGNANT URETEROINTESTINAL ANASTOMOTIC STRICTURE FOLLOWING RADICAL CYSTECTOMY: PATTERNS, RISK FACTORS, AND OUTCOMES

Mary E. Westerman; Boyd Viers; R. Jeffrey Karnes; Robert Tarrell; Prabin Thapa; Matthew Tollefson; Stephen Boorjian


The Journal of Urology | 2016

MP51-15 PRE- AND POST-OPERATIVE PREDICTORS OF INFECTION RELATED COMPLICATIONS IN PATIENTS UNDERGOING PERCUTANEOUS NEPHROLITHOTOMY

Marcelino Rivera; Boyd Viers; Amy E. Krambeck


The Journal of Urology | 2016

PD19-10 PATIENTS ARE WILLING TO USE PHYSICAL ACTIVITY MONITORS TO ENHANCE THEIR MEDICAL CARE: A SURVEY OF PERCEPTIONS AND ACCEPTANCE AMONG A UROLOGICAL PATIENT POPULATION

Boyd Viers; Avinash Nehra; Marcelino Rivera; Daniel O'Neil; Sarah M. Jenkins; Matthew Tollefson; Matthew Gettman

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Igor Frank

University of Rochester

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Prabin Thapa

University of Rochester

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