Reproduction abnormalities and twin pregnancies in parents of sporadic patients with oculo-auriculo-vertebral spectrum/Goldenhar syndrome |
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Authors: | Dagmar Wieczorek Michael Ludwig Stefan Boehringer Piet Hein Jongbloet Gabriele Gillessen-Kaesbach Bernhard Horsthemke |
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Institution: | 1. Institut für Humangenetik, Universit?tsklinikum Essen, Universit?t Duisburg-Essen, Hufelandstr. 55, 45122, Essen, Germany 2. Endokrinologikum Hamburg, Zentrum für Hormon- und Stoffwechselerkrankungen, Reproduktionsmedizin und Gyn?kologische Endokrinologie, Hamburg, Germany 3. Department of Epidemiology and Biostatistics, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands 4. Institut für Humangenetik, Universit?tsklinikum Schleswig-Holstein, Campus Lübeck, Germany
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Abstract: | A great number of case reports on concordant and discordant twins with oculo-auriculo-vertebral spectrum (OAVS) suggest that
there might be an association between reproductive abnormalities, twinning and OAVS. The etiology of OAVS is unknown, but
may involve epigenetic dysregulation of the oocyte or early embryo. We collected data on fertility and pregnancy outcome of
72 parents of patients with sporadic OAVS. We also evaluated prospective follow-up data on 3.372 fetuses and children conceived
by intracytoplasmatic sperm injection (ICSI). Parental age, duration of menstrual cycle and the incidence of spontaneous abortion
was not different when compared to the German population. However, there is an excess of parents who have used assisted reproductive
techniques (ART; retrospective P = 0.038, prospective P = 0.023) and an excess of twins among naturally conceived patients with OAVS (P = 0.0025). An excess of ART conceptions and monozygotic twinning in OAVS is compatible with the concept of overripeness ovopathy
as proposed by Jongbloet (Maandschr Kindergeneeskd 36:352–367, 1968). |
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