Endocrine Abstracts (2011) 26 P138

Perceived ejaculate volume reduction in subjects with erectile dysfunction: psycho-biological correlates

Giovanni Corona1,4, Valentina Boddi1, Mauro Gacci3, Alessandra Sforza4, Gianni Forti1,2, Edoardo Mannucci5 & Mario Maggi1


1Andrology and Sexual Medicine Unit, University of Florence, Florence, Italy; 2Endocrinology Unit, University of Florence, Florence, Italy; 3Urology Unit, University of Florence, Florence, Italy; 4Endocrinology Unit, Azienda Usl di Bologna, Ospedale Maggiore, Bologna, Italy; 5Diabetes Section Geriatric Unit, Department of Critical Care, University of Florence, Florence, Italy.


Introduction: The disorders of orgasm/ejaculation include premature ejaculation, delayed ejaculation and perceived ejaculate volume reduction (PEVR). To explore the specific associations of PEVR in subjects with erectile dysfunction (ED).

Methods: A consecutive series of 3141 subjects (mean age 51.6±13.1 years old) was studied. Among these, 71 have been excluded because they underwent prostate surgery. Different clinical and biochemical factors were evaluated along with parameters derived from SIEDY structured interview evaluating the contribution of organic, relational and intrapsychic factors to ED.

Results: After adjustment for confounders, PEVR was specifically associated with the use of androgen deprivation therapy as well as with different other medicaments including alpha-blockers, serotonergic reuptake inhibitor antidepressants and angiotensin-converting enzyme inhibitors/angiotensin receptor blockers. A higher prevalence of diabetes mellitus and hypogonadism was observed in subjects with PEVR when compared to the rest of the sample (23.0 vs 14.1%and 9.1 vs 5.3% respectively; both P<0.05). In addition, different sexual parameters such as severe ED (HR=1.25(1.11–1.41); P<0.0001) patient’s (HR=1.53(1.38–1.70); P<0.0001) and partner’s (HR=1.21(1.07–1.36); P<0.005) hypoactive sexual desire (HSD) were also significantly related to PEVR. Furthermore, PEVR was associated with an impairment of both the relational and intrapsychic components of ED. In a multivariate model, adjusting for age, BMI, smoking habit and medicaments, both hypogonadism, diabetes mellitus, and severe ED as well as patient’s and partner’s HSD were all independently associated with PEVR.

Conclusions: Our results indicate that PEVR is important not only for couple reproductive purposes, but it also has a distinct role in the couple’s sexual performance.

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