IMR Press / CEOG / Volume 42 / Issue 4 / DOI: 10.12891/ceog1881.2015

Clinical and Experimental Obstetrics & Gynecology (CEOG) is published by IMR Press from Volume 47 Issue 1 (2020). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with S.O.G.

Original Research
The frequencies of the presence of embryonic pole and cardiac activity in early miscarriages with abnormal karyotypes
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1 Department of Obstetrics and Gynecology, Sun Yat-sen Memorial Hospital of Sun Yat-sen University, Guangzhou (China)
Clin. Exp. Obstet. Gynecol. 2015, 42(4), 490–494; https://doi.org/10.12891/ceog1881.2015
Published: 10 August 2015
Abstract

Aims: The objective of this study was to compare the frequencies of the presence of an embryonic pole and cardiac activity in miscarriages with normal and abnormal embryonic karyotypes. Materials and Methods: From January 2008 to December 2012, 405 patients with early miscarriage were evaluated during pregnancy by regular ultrasound, and karyotyping was performed on chorionic villus tissue after curettage. The frequencies of the presence of an embryonic pole and cardiac activity were compared between patients with a normal embryonic karyotype and patients with an abnormal embryonic karyotype. Results: Of the 405 samples, 224 cases (55.3%) had an abnormal karyotype, and 181 cases (44.7%) had a normal karyotype. The frequencies of the presence of an embryonic pole and cardiac activity in miscarriages with normal embryonic chromosomes (71.8% and 57.5%, respectively) were similar to those of miscarriages with abnormal embryonic chromosomes (74.1% and 62.1%, respectively). The frequencies of the presence of an embryonic pole and cardiac activity were higher in miscarriages with viable autosomal trisomies (trisomies 21, 13, and 18), monosomy X, and triploidy than in miscarriages with a normal karyotype or other abnormal karyotypes. Conclusions: The frequencies of the presence of an embryonic pole and cardiac activity are higher in miscarriages with viable autosomal trisomies, monosomy X, and triploidy than in miscarriages with a normal karyotype or other abnormal karyotypes.
Keywords
Miscarriage
Chorionic villus
Karyotype analysis
Ultrasound
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