4 results on '"Stuhldreher, Peter"'
Search Results
2. Cystectomy in the Pediatric Exstrophy Population: Indications and Outcomes.
- Author
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Ko, Joan S., Lue, Kathy, Friedlander, Daniel, Baumgartner, Timothy, Stuhldreher, Peter, DiCarlo, Heather N., and Gearhart, John P.
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BLADDER exstrophy , *CYSTECTOMY , *POSTOPERATIVE period , *URINARY diversion , *PEDIATRIC urology , *THERAPEUTICS - Abstract
Objective: To explore the long-term outcomes and indications for cystectomy in patients with bladder exstrophy. Although rare, cystectomy is the final surgical alternative to bladder repair among these patients with a poor quality bladder template.Methods: A prospectively maintained database of 1298 patients with exstrophy-epispadias complex was reviewed for patients who underwent cystectomy between 1970 and 2015 at the authors' institution. Demographic data, indication for cystectomy, surgical history, postoperative outcomes, and continence status were collected.Results: Eighteen (6 male; 12 female) patients with exstrophy (15 classic bladder exstrophy; 2 bladder exstrophy variants; 1 cloacal exstrophy) underwent cystectomy at a median age of 3.8 years. Six patients (33.3%) underwent primary cystectomy without attempted bladder closure. Eight patients (44.4%) had a history of failed primary closure with loss of capacity or inadequate growth after closure. Four patients (22.2%) had successful primary closure but underwent cystectomy secondary to poor bladder compliance with declining renal function or poor bladder growth or quality. Urinary diversion included 6 cutaneous ureterostomies, 4 bowel conduits (1 ileal; 3 colon), 6 continent urinary diversions with ileosigmoid reservoir, and 1 ureterosigmoidostomy. Of 8 patients who underwent a continence procedure, all were dry at a median of 25.3 months after cystectomy.Conclusion: Cystectomy was most commonly indicated in intrinsically diseased bladder templates that remained too small despite permitting time for interval growth. These bladders often were of poor quality and compliance and did not reduce into the pelvis on examination. It was, however, possible to achieve urinary continence in these patients with cystectomy and urinary diversion. [ABSTRACT FROM AUTHOR]- Published
- 2018
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3. Exercise is Associated with Better Erectile Function in Men Under 40 as Evaluated by the International Index of Erectile Function.
- Author
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Hsiao, Wayland, Shrewsberry, Adam B., Moses, Kelvin A., Johnson, Timothy V., Cai, Amanda W., Stuhldreher, Peter, Dusseault, Beau, and Ritenour, Chad W.M.
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EXERCISE , *IMPOTENCE , *SEXUAL dysfunction , *PHYSICAL activity , *YOUNG men , *YOUTHS' sexual behavior - Abstract
ABSTRACT Introduction. Studies have shown an association between erectile dysfunction and sedentary lifestyle in middle-aged men, with a direct correlation between increased physical activity and improved erectile function. Whether or not this relationship is present in young, healthy men has yet to be demonstrated. Aim. The aim of this study was to assess the association between physical activity and erectile function in young, healthy men. Main Outcome Measures. The primary end points for our study were: (i) differences in baseline scores of greater than one point per question for the International Index of Erectile Function (IIEF); (ii) differences in baseline scores of greater than one point per question for each domain of the IIEF; (iii) exercise energy expenditure; and (iv) predictors of dysfunction as seen on the IIEF. Methods. The participants were men between the ages of 18 and 40 years old at an academic urology practice. Patients self-administered the Paffenbarger Physical Activity Questionnaire and the IIEF. Patients were stratified by physical activity into two groups: a sedentary group (≤1,400 calories/week) and an active group (>1,400 calories/week). Men presenting for the primary reason of erectile dysfunction or Peyronie's disease were excluded. Results. Seventy-eight patients had complete information in this study: 27 patients (34.6%) in the sedentary group (≤1,400 kcal/week) and 51 patients (65.4%) in the active group (>1,400 kcal/week). Sedentary lifestyle was associated with increased dysfunction in the following domains of the IIEF: erectile function (44.4% vs. 21.6%, P = 0.04), orgasm function (44.4% vs. 17.7%, P = 0.01), intercourse satisfaction (59.3% vs. 35.3%, P = 0.04), and overall satisfaction (63.0% vs. 35.3%, P = 0.02). There was a trend toward more dysfunction in the sedentary group for total score on the IIEF (44.4% vs. 23.5%, P = 0.057), while sexual desire domain scores were similar in both groups (51.9% vs. 41.2%, P = 0.37). Conclusions. We have demonstrated that increased physical activity is associated with better sexual function measured by a validated questionnaire in a young, healthy population. Further studies are needed on the long-term effects of exercise, or lack thereof, on erectile function as these men age. Hsiao W, Shrewsberry AB, Moses KA, Johnson TV, Cai AW, Stuhldreher P, Dusseault B, and Ritenour CWM. Exercise is associated with better erectile function in men under 40 as evaluated by the international index of erectile function. J Sex Med 2012;9:524-530. [ABSTRACT FROM AUTHOR]
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- 2012
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4. Prostate-specific Antigen/Solvent Interaction Analysis: A Preliminary Evaluation of a New Assay Concept for Detecting Prostate Cancer Using Urinary Samples
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Stovsky, Mark, Ponsky, Lee, Vourganti, Srinivas, Stuhldreher, Peter, Siroky, Mike B., Kipnis, Victor, Fedotoff, Olga, Mikheeva, Larissa, Zaslavsky, Boris, Chait, Arnon, and Jones, J. Stephen
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PROSTATE cancer , *ANTIGENS , *SOLVENTS , *BIOLOGICAL assay , *BIOPSY , *DIAGNOSTIC imaging , *ENZYME-linked immunosorbent assay - Abstract
Objective: To provide preliminary clinical performance evaluation of a novel prostate cancer (CaP) assay, prostate-specific antigen/solvent interaction analysis (PSA/SIA) that focused on changes to the structure of PSA. Methods: Two-hundred twenty-two men undergoing prostate biopsy for accepted clinical criteria at 3 sites (University Hospitals Case Medical Center in Cleveland, Cleveland Clinic, and Veterans Administration Boston Healthcare System) were enrolled in institutional review board–approved study. Before transrectal ultrasound–guided biopsy, patients received digital rectal examination with systematic prostate massage followed by collection of urine. The PSA/SIA assay determined the relative partitioning of heterogeneous PSA isoform populations in urine between 2 aqueous phases. A structural index, K, whose numerical value is defined as the ratio of the concentration of all PSA isoforms, was determined by total PSA enzyme-linked immunosorbent assay and used to set a diagnostic threshold for CaP. Performance was assessed using receiver operating characteristic (ROC) analysis with biopsy as the gold standard. Results: Biopsies were pathologically classified as case (malignant, n = 100) or control (benign, n = 122). ROC performance demonstrated area under the curve = 0.90 for PSA/SIA and 0.58 for serum total PSA. At a cutoff value of k = 1.73, PSA/SIA displayed sensitivity = 100%, specificity = 80.3%, positive predictive value = 80.6%, and negative predictive value = 100%. No attempt was made in this preliminary study to further control patient population or selection criteria for biopsy, nor did we analytically investigate the type of structural differences in PSA that led to changes in k value. Conclusion: PSA/SIA provides ratiometric information independently of PSA concentration. In this preliminary study, analysis of the overall structurally heterogeneous PSA isoform population using the SIA assay showed promising results to be further evaluated in future studies. [Copyright &y& Elsevier]
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- 2011
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