J 2019

Genetic architecture of recent-onset dilated cardiomyopathy in Moravian region assessed by whole-exome sequencing and its clinical correlates

CHALOUPKA, Anna, Lenka PIHEROVA, Ilga GROCHOVA, Jana BINOVA, Jan KREJČÍ et. al.

Basic information

Original name

Genetic architecture of recent-onset dilated cardiomyopathy in Moravian region assessed by whole-exome sequencing and its clinical correlates

Authors

CHALOUPKA, Anna (203 Czech Republic, guarantor, belonging to the institution), Lenka PIHEROVA (203 Czech Republic), Ilga GROCHOVA (203 Czech Republic), Jana BINOVA (203 Czech Republic), Jan KREJČÍ (203 Czech Republic, belonging to the institution), Lenka ŠPINAROVÁ (203 Czech Republic, belonging to the institution), Viktor STRANECKY (203 Czech Republic), Stanislav KMOCH (203 Czech Republic) and Milos KUBANEK (203 Czech Republic)

Edition

Biomedical Papers, Olomouc: Palacky University, Olomouc, Palacky University, 2019, 1213-8118

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

30201 Cardiac and Cardiovascular systems

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 1.000

RIV identification code

RIV/00216224:14110/19:00112737

Organization unit

Faculty of Medicine

UT WoS

000506054400004

Keywords in English

dilated cardiomyopathy; familial cardiomyopathy; next generation sequencing; genetic architecture; cardiac remodelling

Tags

Tags

International impact, Reviewed
Změněno: 24/1/2020 10:52, Mgr. Tereza Miškechová

Abstract

V originále

Aims. Recent-onset dilated cardiomyopathy (RODCM) is a disease of heterogeneous aetiology and clinical outcome. In this pilot study, we aimed to assess its genetic architecture and correlate genotype with left ventricular reverse remodelling (LVRR). Patients and Methods. In this multi-centre prospective observational study, we enrolled 83 Moravian patients with RODCM and a history of symptoms of less than 6 months, for whole-exome sequencing (WES). All patients underwent 12-month clinical and echocardiographic follow-up. LVRR was defined as an absolute increase in left ventricular ejection fraction > 10% accompanied by a relative decrease of left ventricular end-diastolic diameter > 10% at 12 months. Results. WES identified at least one disease-related variant in 45 patients (54%). LVRR occurred in 28 patients (34%), most often in carriers of isolated titin truncated variants, followed by individuals with a negative, or inconclusive WES and carriers of other disease-related variants (56% vs. 42% vs. 19%, P=0.041). Conclusion. A substantial proportion of RODCM cases have a monogenic or oligogenic genetic background. Carriers of non-titin disease-related variants are less likely to reach LVRR at 12-months than other individuals. Genetic testing could contribute to better prognosis prediction and individualized treatment of RODCM.