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RESEARCH PRODUCT

Spontaneous Nocturnal Erections - Physiology and Clinical Applications. Spontane nachtliche Erektionen - Physiologie und klinische Anwendungen

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description

Spontaneous nocturnal erections in men are a well-known phenomenon whose physiology however is not yet really understood. The measurement of nocturnal erections has gained clinical relevance for the diagnosis of erectile dysfunction because it allows an objective and quantitative assessment of the erectile capacity. A decisive advantage compared to other diagnostic tests carried out during wakefulness is the exclusion of psychological factors to a great extent. Thus, an evaluation of the organic component of an erectile dysfunction is possible. Regarding the interpretation of nocturnal erection records, various factors possibly influencing the results must be considered; this is particularly relevant if the method is applied in forensic evaluations. Registration of at least one normal nocturnal erection indicates that the penile structures are intact and that the organic requirements on the peripheral level for developing an erection are fulfilled. Abnormal nocturnal erection patterns can only be assessed correctly on the basis of a polysomnography carried out simultaneously. In case of an undisturbed sleep profile, missing or clearly diminished nocturnal erections point to organic causes of the erectile dysfunction. With the availability of very effective noninvasive treatment options for erectile dysfunction that are independent of aetiology, nocturnal erection measurement is not part of the routine diagnosis; rather, it is reserved for selected cases where the exact determination of the underlying causes is relevant.