Articles: erectile-dysfunction.
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Erectile dysfunction (ED) is common in men with cardiovascular disease. The introduction of sildenafil citrate, the first oral agent for the treatment of this disorder, has increased awareness about the risks of sexual activity in cardiac patients and raised concerns about the safety of sildenafil in patients being treated for coronary disease. Sildenafil is a potent and selective inhibitor of phosphodiesterase type 5 (PDE5), the enzyme responsible for the degradation of cyclic guanosine monophosphate (cGMP). ⋯ None of the serious cardiovascular events reported in these trials were considered treatment related by the investigators. There is a small but finite increased risk of developing ischemia or infarction with sexual activity. Therefore, before prescribing sildenafil or any current or future treatment for ED to patients with known cardiac disease or multiple cardiovascular risk factors, physicians should discuss the potential cardiac risk of sexual activity and perform a complete medical assessment, including an exercise stress test if appropriate.
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Int. J. Radiat. Oncol. Biol. Phys. · Nov 2000
Comparative StudyA comparison of radiation dose to the neurovascular bundles in men with and without prostate brachytherapy-induced erectile dysfunction.
The etiology of erectile dysfunction after definitive local therapy for carcinoma of the prostate gland represents a multifactorial phenomenon including neurogenic compromise, venous insufficiency, local trauma, and psychogenic causes. It has been suggested that impotence after prostate brachytherapy is a consequence of excessive radiation dose to the neurovascular bundles (NVB). Herein we evaluate the potential relationship between radiation dose to the NVB and the development of erectile dysfunction following prostate brachytherapy. ⋯ In this study, no relationship between radiation dose to the NVB and the development of post brachytherapy erectile dysfunction was discernible. Such a difference may become evident with additional follow-up. If long-term brachytherapy-induced erectile dysfunction is related to the radiation dose to the NVB, the ultimate preservation of potency following prostate brachytherapy may be markedly inferior to what has been reported. Nevertheless, the majority of this patient population responded favorably to sildenafil.
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J. Natl. Cancer Inst. · Oct 2000
Health outcomes after prostatectomy or radiotherapy for prostate cancer: results from the Prostate Cancer Outcomes Study.
Radical prostatectomy and external beam radiotherapy are the two major therapeutic options for treating clinically localized prostate cancer. Because survival is often favorable regardless of therapy, treatment decisions may depend on other therapy-specific health outcomes. In this study, we compared the effects of two treatments on urinary, bowel, and sexual functions and on general health-related quality-of-life outcomes over a 2-year period following initial treatment. ⋯ There are important differences in urinary, bowel, and sexual functions over 2 years after different treatments for clinically localized prostate cancer. In contrast to previous reports, these outcome differences reflect treatment delivered to a heterogeneous group of patients in diverse health care settings. These results provide comprehensive and representative information about long-term treatment complications to help guide and inform patients and clinicians about prostate cancer treatment decisions.
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Hypogonadism is an uncommon cause of erectile dysfunction. Unfortunately, hypogonadal states in adult males are difficult to diagnose on purely clinical grounds and it is necessary to seek biochemical support. The simplest way to establish the diagnosis of hypogonadism is by determination of serum testosterone levels. ⋯ In the absence of an adequate response, co-morbidities should be diligently sought out. In the absence of reliable guidelines for androgen administration to patients with erectile failure, a set of recommendations are provided. International Journal of Impotence Research (2000) 12, Suppl 4, S112-S118.