Intracavernous Injection of Prostaglandin E1 for the Treatment of Erectile Impotence

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Abstract
We administered intracavernous injections of 20 μg. prostaglandin E1 to 135 patients with impotence, and evaluated the effects and side effects. Among 135 patients who underwent intracavernous injection of prostaglandin E1 complete erection was observed in 83 (62 per cent), while incomplete erection was noted in 33 (24 per cent). In both groups the erection was sufficient for sexual intercourse. Tumescence without rigidity was noted in 12 patients and no response was obtained in 7. Poor response was seen frequently in patients with disorders of the vascular system and/or damage to the cavernous body of the penis. Priapism after the injection was not observed. Moreover, we never observed any other severe side effects.