Preston Marshall

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A study was conducted to assess the validity of nocturnal penile tumescence (NPT) as a means of distinguishing between psychogenic and organic erectile failure (impotence). On the basis of independent clinical criteria, patients were assigned to one of four diagnostic categories--organic impotence, psychogenic impotence, mixed etiology, and uncertain(More)
We investigated the degree of congruence between outcome measures used to evaluate pharmacological treatment of impotence. After a comprehensive multidisciplinary assessment 17 patients were treated with an adrenergic blocker during an 8-week interval. Nocturnal penile tumescence recordings were made before treatment (as part of the assessment procedure)(More)