GURKA, Jiri, Lenka PIHEROVA, Filip MAJER, Anna CHALOUPKA, Daniela ŽÁKOVÁ, Ondrej PELAK, Alice KREBSOVA, Petr PEICHL, Jan KREJČÍ, Tomáš FREIBERGER, Vojtech MELENOVSKY, Josef KAUTZNER, Tomas KALINA, Jakub SIKORA and Milos KUBANEK. Danon disease is an underdiagnosed cause of advanced heart failure in young female patients: a LAMP2 flow cytometric study. ESC Heart Failure. San Francisco: Wiley Periodicals, 2020, vol. 7, No 5, p. 2534-2543. ISSN 2055-5822. Available from: https://dx.doi.org/10.1002/ehf2.12823.
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Basic information
Original name Danon disease is an underdiagnosed cause of advanced heart failure in young female patients: a LAMP2 flow cytometric study
Authors GURKA, Jiri (203 Czech Republic), Lenka PIHEROVA (203 Czech Republic), Filip MAJER (203 Czech Republic), Anna CHALOUPKA (203 Czech Republic, belonging to the institution), Daniela ŽÁKOVÁ (203 Czech Republic), Ondrej PELAK (203 Czech Republic), Alice KREBSOVA (203 Czech Republic), Petr PEICHL (203 Czech Republic), Jan KREJČÍ (203 Czech Republic, belonging to the institution), Tomáš FREIBERGER (203 Czech Republic), Vojtech MELENOVSKY (203 Czech Republic), Josef KAUTZNER (203 Czech Republic), Tomas KALINA (203 Czech Republic), Jakub SIKORA (203 Czech Republic) and Milos KUBANEK (203 Czech Republic, guarantor).
Edition ESC Heart Failure, San Francisco, Wiley Periodicals, 2020, 2055-5822.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 30201 Cardiac and Cardiovascular systems
Country of publisher United States of America
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 4.411
RIV identification code RIV/00216224:14110/20:00116651
Organization unit Faculty of Medicine
Doi http://dx.doi.org/10.1002/ehf2.12823
UT WoS 000573314800056
Keywords in English Advanced heart failure; Danon disease; Lysosomal-associated membrane protein type 2; Screening; White blood cells
Tags 14110115, rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Tereza Miškechová, učo 341652. Changed: 10/10/2021 10:21.
Abstract
Aims Danon disease (DD) is a rare X-linked disorder caused by mutations in the lysosomal-associated membrane protein type 2 gene (LAMP2). DD is difficult to distinguish from other causes of dilated or hypertrophic cardiomyopathy (HCM) in female patients. As DD female patients regularly progress into advanced heart failure (AHF) aged 20-40 years, their early identification is critical to improve patient survival and facilitate genetic counselling. In this study, we evaluated the prevalence of DD among female patients with non-ischemic cardiomyopathy, who reached AHF and were younger than 40 years. Methods and results The study cohort comprised 60 female patients: 47 (78%) heart transplant recipients, 2 (3%) patients treated with ventricular assist device, and 11 (18%) patients undergoing pre-transplant assessment. Aetiology of the cardiomyopathy was known in 15 patients (including two DD patients). LAMP2 expression in peripheral white blood cells (WBC) was tested by flow cytometry (FC) in the remaining 45 female patients. Whole exome sequencing was used as an alternative independent testing method to FC. Five additional female DD patients (two with different novelLAMP2mutations) were identified by FC. The total prevalence of DD in this cohort was 12%. HCM phenotype (57% vs. 9%,*P = 0.022) and delta waves identified by electrocardiography (43% vs. 0%,*P = 0.002) were significantly more frequent in DD female patients. Conclusions Danon disease is an underdiagnosed cause of AHF in young female patients. LAMP2 expression testing in peripheral WBCs by FC can be used as an effective screening/diagnostic tool to identify DD in this patient population.
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