Seminal Vesicle Parameters at 10-Year Intervals Measured by Transrectal Ultrasonography

Terasaki, Toyohiro; Watanabe, Hiroki; Kamoi, Kazumi; Naya, Yoshio

doi:10.1016/s0022-5347(17)35647-1

Cited by 14 publications

(7 citation statements)

References 11 publications

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“…Accordingly, we did not find any association between sperm parameters and SV volume or ejection fraction. SV diameters measured in our study were essentially in agreement with previously reported sonographic data (Fuse et al, 1992;Terasaki et al, 1993;Kim and Lipshultz, 1996;Colpi et al, 1997;La Vignera et al, 1998;Kim et al, 2009). However, the volume we derived was substantially lower than in previous studies (Tanahashi et al, 1975;Terasaki et al, 1993), probably because the mathematical model we used was different.…”

Section: Discussionsupporting

confidence: 91%

“…In fact, SV volume has only been assessed in a few studies, in a limited series of subjects, using different algorithms and before ejaculation (Tanahashi et al, 1975;Terasaki et al, 1993). In addition, the few studies performed before and after ejaculation did not assess the SV volume, evaluating only SV anterior -posterior diameter (Colpi et al, 1997;La Vignera et al, 2008) or anterior -posterior and longitudinal diameter (Hernandez et al, 1990;Fuse et al, 1992;Terasaki et al, 1993). Finally, only some authors (Colpi et al, 1997;La Vignera et al, 2008) took sexual abstinence into consideration.…”

Section: Introductionmentioning

confidence: 99%

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Seminal vesicles ultrasound features in a cohort of infertility patients

et al. 2012

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Section: Discussionsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Seminal vesicles ultrasound features in a cohort of infertility patients

et al. 2012

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“…Stepwise multiple linear, logistic binary or ordinal regressions were applied for multivariate analysis whenever appropriate. As prostate and SV characteristics are strictly related to age and TT (see Morales, and Parsons et al ., ; for prostate; Terasaki et al ., ; Kim et al ., ; Lotti et al ., for SV) and prostate features can also be modulated by abdominal adiposity (Parsons et al ., , ; Lotti et al ., ), all data have been adjusted for age, TT and waist, unless otherwise specified. For graphic purpose, the NIH‐CPSI total score is reported on the abscissa as quartiles, although statistical analyses have been performed using the total score as a continuous variable.…”

Section: Methodsmentioning

confidence: 99%

Seminal, clinical and colour‐Doppler ultrasound correlations of prostatitis‐like symptoms in males of infertile couples

et al. 2013

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SUMMARY'Prostatitis-like symptoms' (PLS) are a cluster of bothersome conditions defined as 'perineal and/or ejaculatory pain or discomfort and National Institutes of Health-Chronic Prostatitis Symptom Index (NIH-CPSI) pain subdomain score ≥4' (Nickel's criteria). PLS may originate from the prostate or from other portions of the male genital tract. Although PLS could be associated with 'prostatitis', they should not be confused. The NIH-CPSI is considered the gold-standard for assessing PLS severity. Although previous studies investigated the impact of prostatitis, vesiculitis or epididymitis on semen parameters, correlations between their related symptoms and seminal or scrotal/transrectal colour-Doppler ultrasound (CDU) characteristics have not been carefully determined. And no previous study evaluated the CDU features of PLS in infertile men. This study was aimed at investigating possible associations among NIH-CPSI (total and subdomain) scores and PLS, with seminal, clinical and scrotal/transrectal CDU parameters in a cohort of males of infertile couples. PLS of 400 men (35.8 AE 7.2 years) with a suspected male factor were assessed by the NIH-CPSI. All patients underwent, during the same day, semen analysis, seminal plasma interleukin 8 (sIL-8, a marker of male genital tract inflammation), biochemical evaluation, urine/seminal cultures, scrotal/transrectal CDU. PLS was detected in 39 (9.8%) subjects. After adjusting for age, waist and total testosterone (TT), no association among NIH-CPSI (total or subdomain) scores or PLS and sperm parameters was observed. However, we found a positive association with current positive urine and/or seminal cultures, sIL-8 levels and CDU features suggestive of inflammation of the epididymis, seminal vesicles, prostate, but not of the testis. The aforementioned significant associations of PLS were further confirmed by comparing PLS patients with age-, waist-and TT-matched PLS-free patients (1 : 3 ratio). In conclusion, NIH-CPSI scores and PLS evaluated in males of infertile couples, are not related to sperm parameters, but mainly to clinical and CDU signs of infection/inflammation.

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“…As prostate and SV characteristics are strictly related to age and TT (see Morales, and Parsons et al ., for prostate; Terasaki et al ., ; Kim et al ., and Lotti et al ., for SV), and owing to the wide age range (18–61 years) and to the fact that sexual dysfunctions are age‐ and TT‐dependent phenomena (Lewis et al ., ), data have been adjusted for age and TT, unless otherwise specified. In addition, as thyroid function plays a role in modulating PRL (Melmed et al ., ) and sexual function (Corona et al ., ), data have been adjusted also for TSH, unless otherwise specified.…”

Section: Methodsmentioning

confidence: 99%

Clinical implications of measuring prolactin levels in males of infertile couples

et al. 2013

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SUMMARYAlthough in females of infertile couples abnormal prolactin (PRL) has a definitive role in the medical flowchart, its role in males is less clear. Animal models suggest that PRL does not play a major role in male reproduction, although its trophic action on male accessory glands was often observed. Studies in humans are scanty. We systematically evaluated possible clinical and ultrasound correlates of PRL in males of infertile couples. Of 288 consecutive males of infertile couples, 269 (36.6 AE 4.4 years) without genetic abnormalities were studied. All men underwent physical, biochemical, seminal evaluation and scrotal and transrectal ultrasound before and after ejaculation. Ejaculatory and erectile functions were assessed by Premature Ejaculation Diagnostic Tool (PEDT) and International Index of Erectile Function (IIEF)-15 respectively; prostate-related symptoms by National Institutes of HealthChronic Prostatitis Symptom Index and International Prostate Symptom Score; psychological symptoms by Middlesex Hospital Questionnaire. Among semen parameters, only the positive association between PRL and ejaculate volume was significant, even adjusting for age, total testosterone and thyroid-stimulating hormone (adj. r = 0.126, p < 0.05). In a logistic ordinal model, adjusting for the aforementioned confounders and ejaculate volume, PRL was negatively associated with delaying ejaculation according to PEDT#1 score (Wald = 4.65, p < 0.05). In an age-and ejaculate volume-adjusted, iterative binary logistic model, low PRL was associated with a fivefold risk of any failure in controlling ejaculation , p < 0.05). Among scrotal and transrectal ultrasound features, we found a significant positive association between PRL and seminal vesicles (SV) volume and inhomogeneity, before and after ejaculation, and with deferential ampullas diameter. Associations with PRL were confirmed in nested 1 : 1 case-control analysis. No significant associations were found between PRL and other clinical parameters. For the first time, this study extends the concept of a trophic effect of PRL on male accessory glands from animals to humans. We report a positive association among PRL and ejaculate and SV volume, before and after ejaculation. Low PRL is associated with a lessened ability to control ejaculation.

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Seminal Vesicle Parameters at 10-Year Intervals Measured by Transrectal Ultrasonography

Cited by 14 publications

References 11 publications

Seminal vesicles ultrasound features in a cohort of infertility patients

Seminal vesicles ultrasound features in a cohort of infertility patients

Seminal, clinical and colour‐Doppler ultrasound correlations of prostatitis‐like symptoms in males of infertile couples

Clinical implications of measuring prolactin levels in males of infertile couples

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