IMR Press / CEOG / Volume 47 / Issue 4 / DOI: 10.31083/j.ceog.2020.04.3433
Open Access Original Research
Rapid diagnostic testing of a neonate in a family with hypertrophic cardiomyopathy
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1 Department of Obstetrics and Gynecology, Asahikawa Medical University, Asahikawa 0788510, Japan
2 Department of Human Genetics, Yokohama City University Graduate School of Medicine, Yokohama 236-0004, Japan
*Correspondence: (TOSHINOBU MIYAMOTO)
Clin. Exp. Obstet. Gynecol. 2020, 47(4), 496–499;
Submitted: 16 September 2015 | Accepted: 4 November 2015 | Published: 15 August 2020
Copyright: © 2020 Ueda et al. Published by IMR Press.
This is an open access article under the CC BY 4.0 license

Familial hypertrophic cardiomyopathy (HCM) is a common but severe genetic disease. A pregnant woman with familial HCM was referred to our hospital as both the couple and their families were concerned that the baby would later develop HCM. Therefore, we determined the risk of HCM in the neonate. Using whole-exome sequencing, mutational analysis was performed on the patient, her family members (including her father, mother, sister, and husband), and the neonate. Sanger sequencing was also performed. We found that HCM in this family was caused by a mutation in the cardiac heavy chain β-myosin (MYH7) gene. Encouragingly, the neonate did not carry this MYH7 mutation as the father was also negative. We were able to determine that the neonate had no risk of familial HCM. Obstetricians should consider genetic screening if a pregnant woman has a severe risk of such familial complications. Content: We demonstrated absence of familial HCM in a neonate and suggest appropriate genetic screening in pregnant women with familial complications.

Early diagnosis
Hypertrophic cardiomyopathy
Whole-exome sequencing
25462547/Japan Society for the Promotion of Science
26462469/Japan Society for the Promotion of Science
24249019/Japan Society for the Promotion of Science
12024421/Ministry of Education, Culture, Sports, Science, and Technology of Japan
11105137/Ministry of Health, Labor and Welfare of Japan, the Strategic Research Program for Brain Sciences
Figure 1.
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