A follow-up study of children born after intracytoplasmic sperm injection (ICSI) with epididymal and testicular spermatozoa and after replacement of cryopreserved embryos obtained after ICSI

Human Reproduction
M BonduelleInge Liebaers

Abstract

The aim of this prospective follow-up study of children born after intracytoplasmic sperm injection (ICSI) was to compile data on karyotypes, congenital malformations, growth parameters and developmental milestones in order to evaluate the safety of this new technique. The study design included karyotyping of the parents and their agreement to genetic counselling and prenatal diagnosis and it was based on a physical examination of the child at the Centre for Medical Genetics at the ages of 2 months, 1 year and at 2 years, where major and minor malformations and psychomotor evolution are recorded. Here we describe the first 57 children born from 40 ICSI pregnancies with epididymal spermatozoa (group 1), the first 50 children born from 34 ICSI pregnancies with testicular spermatozoa (group 2) and the first 58 children born from 48 pregnancies after replacement of cryopreserved ICSI embryos (group 3). Parental karyotypes were obtained from only 72/246 (29%) parents and were all normal. Prenatal karyotypes were determined for a total of 70 samples (40%): 21 in group 1, 15 in group 2 and 34 in group 3. In this last group 2 abnormal 47,XXY karyotypes (5.8%) and no structural aberrations were found. This increase in de-novo sex-chromo...Continue Reading

Citations

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