Erectile dysfunction in Singapore men: presentation, diagnosis, treatment and results.
Three hundred and thirteen new cases were seen in more than two years at the Sexual Dysfunction Clinic at the Division of Urology, Toa Payoh Hospital (TPH). Patients were assessed by history, clinical examination, psychological evaluation, hormonal and biochemical tests; special investigations such as monitoring of nocturnal penile tumescence, cavernosography, selective pudendal arteriography and tests of neurological function were performed where indicated. Two hundred and twenty-seven patients (72.5%) had impotence due to organic causes while 86 patients (27.5%) were found to have psychogenic impotence. Diabetes mellitus and vascular disease account for the large proportion of organic impotence (81%). Patients with psychogenic impotence responded fairly well to psychosexual therapy and drug treatment in certain cases. Forty-four patients underwent medical therapy which consisted mainly of pharmacologically induced penile erections by the use of papaverine, phentolamine or prostaglandin E-1; 21 patients (48%) who were on self-injection therapy became non-compliant subsequently. One hundred and fourteen andropausal patients with low testosterone levels received hormonal replacement. Thirty-one patients underwent surgery--stripping and ligation of the deep dorsal vein of the penis (13 patients), microsurgical arterial revascularisation (two patients) and penile prosthetic implantation (16 patients). Our success rates for the operations were 54%, 100% and 88% respectively.
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