Human Reproduction, Vol 13, 3399-3401, Copyright © 1998 by Oxford University Press
N Rives, L Sibert, B Clavier, V Delabroye, L Marpeau and B Mace
We present one of the very few deliveries occurring following
intracytoplasmic sperm injection of thawed immotile testicular spermatozoa
from a testicular biopsy of a man with bilateral congenital absence of the
vas deferens. A first attempt in the 33 year old woman with fresh
testicular biopsy extracted spermatozoa was unsuccessful. The supernumerary
spermatozoa were cryopreserved for later use. After thawing, testicular
spermatozoa were immotile. From 11 intact oocytes injected with
frozen-thawed immotile testicular spermatozoa, a two pronuclear
fertilization rate of 27% and a cleavage rate of 100% were obtained. A
total of three embryos was transferred resulting in a singleton pregnancy
and the birth of a normal female baby.
ARTICLES
Full-term delivery following intracytoplasmic sperm injection with frozen-thawed immotile testicular spermatozoa
Reproductive Biology Laboratory, Rouen University Hospital, France.
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