Nocturnal Penile Tumescence with Stamps: A Comparative Study Under Sleep Laboratory Conditions

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Abstract
The usefulness of noctural penile tumescence with stamps to measure erections during sleep were evaluated under laboratory conditions and compared to strain gauge recording. If the ring of stamps does not break a diagnosis of organic dysfunction is supported. If breakage occurs at the perforations no diagnostic conclusion can be made. The diagnostic importance [in humans] of nocturnal penile tumescence with stamps was limited.