title: [Cryopreservation of human spermatozoa--evaluation of 93 semen depots].
abstract: Cryopreserved semen depots from 93 patients who had terminated contract with the CRYO-BANK-KREFELD were evaluated for prefreeze quality and post-thaw motility after a few days and after long-term storage (mean = 44 month). 2/3 of these patients had onkological disease. Only 20% of the ejaculates were normozoospermic and showed motility after thawing of more than 20%. The average recovery rate after long term storage was only 28% and revealed a significant decrease with time of about 20%. The concentration of motile spermatozoa, especially in patients with testicular cancer (x = 2.1 mill/ml), was so much reduced one must assume that in the most cases of semen banking there was no chance to achieve pregnancy.
authors: F B
authors: FB
authors: Kolodziej
authors: T
authors: T
authors: Katzorke
authors: D
authors: D
authors: Propping
mesh_terms: D015925:Cryopreservation; D005260:Female; D006801:Humans; D008297:Male; D011247:Pregnancy; D012662:Semen Preservation; D013081:Sperm Motility; D013094:Spermatozoa / Q000502:physiology*; D013696:Temperature; D013736:Testicular Neoplasms / Q000503:physiopathology; D013997:Time Factors
vernacular_title: Kryokonservierung humaner Spermatozoen--Auswertung von 93 Samenlangzeitdepots.