Human Reproduction, Vol. 14, No. 10, 2629-2634,
October 1999
© 1999 European Society of Human Reproduction and Embryology
Genetic sonography as the preferred option of prenatal diagnosis in patients with pregnancies following intracytoplasmic sperm injection
1 Department of Obstetrics and Gynaecology and 2 Institute of Human Genetics, Medical University Lübeck, Ratzeburger Allee 160, D-23528 Lübeck, Germany
The option of prenatal diagnosis with nuchal translucency measurement at 1014 weeks of gestation and second trimester targeted ultrasound including fetal echocardiography (genetic sonography) is reported in patients after intracytoplasmic sperm injection (ICSI). From January 1995 to December 1998, 153 consecutive patients, with a mean age of 32.3 years (±4.1) and 29.6%
35 years, who had become pregnant after ICSI, were studied. They attended our unit for first and second trimester sonography. Of these, 67.8% of primigravid and 80.9% of nulliparous women were included. Multiple pregnancy rate was 19.7%; 189 fetuses were screened in total. Due to the introduction of genetic sonography in 1995, the rate of invasive prenatal diagnosis decreased from 74% in 1995, to 48, 36 and 19% in 1996, 1997, and 1998 respectively. Two inherited numerical and structural chromosomal anomalies in clinically healthy children at birth (1.0%) and four major malformations in all liveborn children and late abortions (2.1%) were recorded. The results demonstrate that especially in women of advanced reproductive age with a long history of infertility, detailed genetic sonography may be a reasonable and highly accepted alternative to avoid even the relatively low risks associated with invasive screening procedures.
Key words: assisted reproduction techniques/chromosomal aberration/genetic sonography/intracytoplasmic sperm injection/targeted ultrasound
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