Browse

Risk factors in predicting a poor response to sildenafil citrate in elderly men with erectile dysfunction

Cited 52 time in Web of Science Cited 62 time in Scopus
Authors
Park, Kwanjin; Ku, Ja Hyun; Kim, Soo Woong; Paick, Jae-Seung
Issue Date
2005-02-01
Publisher
Blackwell Science
Citation
BJU Int. 2005 Feb;95(3):366-70.
Keywords
AgedAnalysis of VarianceDiabetes Complications/etiologyErectile Dysfunction/*drug therapyHumansHypogonadism/complicationsMaleMiddle AgedPhosphodiesterase Inhibitors/*therapeutic usePiperazines/*therapeutic usePurinesRisk FactorsSmoking/adverse effectsSulfonesTreatment Failure
Abstract
OBJECTIVE: To assess the clinical efficacy of sildenafil and the potential predictors of poor response to sildenafil in elderly patients with erectile dysfunction (ED). PATIENTS AND METHODS: The study included 162 patients (aged > or = 60 years) treated with sildenafil for at least 8 weeks; all patients were evaluated with a history, physical examination, measurement of total testosterone and a pharmacological erection test. Sexual function before and 8 weeks after treatment was assessed using the self-administered International Index of Erectile Function (IIEF). Treatment was considered successful when the patient attained a higher grade on the erectile function (EF) domain score, and an affirmative response to the overall assessment question. Factors influencing treatment outcome were evaluated by univariate and multivariate statistical analysis. RESULTS: The overall efficacy with sildenafil was 47% (76/162). On univariate analysis, uncontrolled diabetes, current smoking, hypogonadism (<3 microg/L testosterone) and low pretreatment EF domain score (<17) were selected as predictors of a poor response. On multivariate logistic regression, a low pretreatment EF domain score was the strongest independent prognostic factor for a poor response (odds ratio 2.25, 95% confidence interval, 1.45-7.33), and this was followed by hypogonadism (1.89, 1.12-3.16) and current smoking (1.34, 1.04-3.52). CONCLUSION: In a real clinical setting, sildenafil was effective for about half of the elderly men. The baseline EF domain score, hypogonadism and current smoking were significantly associated with failure of sildenafil. These results suggest that modifying reversible risk factors, e.g. stopping smoking and replacing testosterone, would be beneficial in augmenting the efficacy of sildenafil in elderly men.
ISSN
1464-4096 (Print)
Language
English
URI
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Citation&list_uids=15679795

http://hdl.handle.net/10371/15560
DOI
https://doi.org/10.1111/j.1464-410X.2005.05301.x
Files in This Item:
There are no files associated with this item.
Appears in Collections:
College of Medicine/School of Medicine (의과대학/대학원)Urology (비뇨기과학전공)Journal Papers (저널논문_비뇨기과학전공)
  • mendeley

Items in S-Space are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse