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Korean Journal of Obstetrics & Gynecology 2001;44(2):246-251.
Published online February 1, 2001.
Chromosomal Abnormality of Spontaneous Abortus in Relation to Transvaginal Ultrasonographic Finding.
Kyung Ah Jeong, Tae Jung Kang, Jee Eun Han, Kyung Soon Lee
Department of Obstetrics Gynecology, College of Medicine, Ewha Womans University, Seoul, Korea.
To investigate the importance of transvaginal ultrasonographic findings of spontaneous abortion and the relation of transvaginal ultrasonographic finding and the karyotype of abortus. MATERIALS AND METHODS: Transvaginal sonography was undergone to 48 subjects with spontaneous abortion in their early pregnancies who had visited Ewha Womans University Mokdong Hospital, from March 1996 to June 1999. A chromosome analysis of their aborted products was done. RESULTS: The frequency of chromosome abnormalities of abortus was 47.9%. Among the chromosomal abnormalities, trisomy was 31.2%(simple trisomy 27.0%, double trisomy 4.2%), monosomy X 8.4%, poliploidy 8.4%(tripoidy 4.2%, tetraploidy 4.2%). The average maternal age for trisomy was 30.2+/-4.9, and their past number of spontaneous abortions was 1.0+/-0.9, with trisomy 16 most frequent with 23.0%. In the case with trisomy 5, 22, and double trisomy, the average maternal age was increased with 38.0, 36.0+/-2.8, 35.5+/-5.0, respectively. However, no significant relevance could be found. The average maternal age for polyploidy was 30.5+/-3.7, and their past number of spontaneous abortions was 1.0+/-2.0. No significant relevance could be found compared with normal karyotypes. The average maternal age for monosomy X was 27.5+/-1.7, which is lower than the average maternal age for normal karyotypes, but not significantly so. The mean number of past abortions was no different with 1.0+/-0.8. No significant relevance could be found between ultrasonographic findings and chromosomal abnormalities. The measured/expected crown-rump length ratio of the aborted group was smaller than those of the control group. CONCLUSION: Serial ultrasonographic findings in early pregnancies help to diagnose spontaneous abortion, but not efficient to diagnose chromosomal abnormalities in the aborted group.
Key Words: Spontaneous abortion, Chromosome analysis, Transvaginal sonography

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