Human Reproduction, Vol 13, 48-54, Copyright © 1998 by Oxford University Press
K van der Ven, B Peschka, M Montag, R Lange, G Schwanitz and HH van der Ven
We evaluated the frequency of congenital chromosomal aberrations in a
sample of 305 couples included in an intracytoplasmic sperm injection
(ICSI) programme. Twenty individuals (3.3%) with congenital chromosomal
abnormalities could be identified. The following types of abnormalities
were observed: reciprocal translocations (n = 7), Robertsonian
translocations (n = 3), inversions (n = 3), other structural aberrations (n
= 4) and sex chromosome aberrations (n = 3). The rate of chromosomally
abnormal males (10/305, 3.3%) lay within the expected range for patients
with reduced semen quality. Surprisingly, 50% (10/20) of all abnormal
karyotypes were contributed by the female partner of ICSI patients. These
data confirm the higher incidence of chromosomal aberrations in infertile
populations as compared with the baseline population risk. Additionally,
the data imply that in some cases of male factor infertility a hidden
female chromosomal factor may be present, which cannot be identified by
standard clinical evaluation. In conclusion, we recommend chromosomal
analysis in both partners of couples undergoing ICSI treatment.
ARTICLES
Increased frequency of congenital chromosomal aberrations in female partners of couples undergoing intracytoplasmic sperm injection
Department of Obstetrics and Gynecology, University of Bonn, Germany.
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