High percentage of abnormal semen parameters in a prevasectomy population
| Autor: | Fábio Firmbach Pasqualotto, Kelly S. Athayde, Bernardo Passos Sobreiro, Jorge Hallak, Antonio Marmo Lucon, Eleonora Bedin Pasqualotto |
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| Rok vydání: | 2004 |
| Předmět: |
Adult
Male endocrine system media_common.quotation_subject Population Fertility Semen Andrology Testis Vasectomy Medicine Humans education reproductive and urinary physiology Sperm motility media_common Aged Retrospective Studies education.field_of_study Sperm Count urogenital system business.industry Obstetrics and Gynecology Organ Size Abstinence Middle Aged Sperm Spermatozoa Sexual abstinence Reproductive Medicine Sperm Motility business |
| Zdroj: | Fertility and sterility. 85(4) |
| ISSN: | 1556-5653 |
| Popis: | Objective To evaluate semen characteristics, testicular volume, and hormonal levels of normal fertile men requiring vasectomy for sterilization. Design Retrospective study. Setting(s) Academic medical centers. Patient(s) A total of 889 patients underwent a vasectomy for sterilization. Intervention(s) None. Main Outcome Measure(s) Semen volume, sperm concentration, motility, and morphology according to the World Health Organization (WHO); complex motion parameters evaluated by computer-assisted semen analyzer; FSH, LH, and T levels; and both testicular volumes. Result(s) When compared with the WHO values, 87.2% of the patients presented normal sperm morphology below the normal level. The other semen parameters (semen volume, pH, sperm concentration, and sperm motility) differed from the WHO parameters in 6%–32.2% of patients. Semen volume and sperm concentration presented a progressive increase according to the duration of sexual abstinence. However, patients with 5 days or more of abstinence had a decrease in sperm motility. Mean testicular size had the strongest correlation with serum FSH levels, total sperm count, and sperm concentration. Conclusion(s) Low sperm motility and morphology were found in men who request a vasectomy for sterilization. Semen volume and sperm concentration present a progressive increase and sperm motility a decrease according to the duration of sexual abstinence. Sperm concentration had stronger correlations with testicular size than did sperm quality. Therefore, the WHO normal values need to be reconsidered. |
| Databáze: | OpenAIRE |
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