title: [Pregnancy with spermatozoa from the head of the epididymis in spermatic duct agenesis].
abstract: From a male affected of agenesis of corpus and cauda epididymis and vas deferens, sperms were surgically obtained aspirating epididymal content with the help of a surgical microscope. Motile sperms were separated after discontinuous Percoll gradient centrifugation and used to inseminate in vitro the spouse's oocytes 8 hrs. after aspiration according to the current techniques. Twenty hours later, oocytes were checked for fertilization and transferred to fresh culture medium. From 13 preovulatory oocytes only one was fertilized and transferred to the Fallopian tube at the 6 cells stage. Fourteen days after embryo transfer, serum HCG concentration was 320 mU/ml and on day 29th a 5mm fetal sac showing heart beats was detected by transvaginal sonography. After an uneventful 38 weeks gestation a normal baby girl weighing 2,800 g was delivered.
authors.affiliation: Fundación Halitus, Buenos Aires, Argentina.
authors.forename: R S
authors.initials: RS
authors.lastname: Pasqualini
authors.forename: G R
authors.initials: GR
authors.lastname: Valzacchi
authors.forename: C J
authors.initials: CJ
authors.lastname: Quintans
authors.forename: M
authors.initials: M
authors.lastname: Donaldson
authors.forename: N
authors.initials: N
authors.lastname: Matarasso
mesh_terms: D000328:Adult; D004624:Embryo Transfer; D004822:Epididymis / Q000002:abnormalities*; D005260:Female; D005307:Fertilization in Vitro; D006801:Humans; D008297:Male; D011247:Pregnancy; D013094:Spermatozoa / Q000502:physiology*
vernacular_title: Embarazo logrado con espermatozoides obtenidos de la cabeza epididimaria en una agenesia de vías espermáticas.