J 2020

Danon disease is an underdiagnosed cause of advanced heart failure in young female patients: a LAMP2 flow cytometric study

GURKA, Jiri; Lenka PIHEROVA; Filip MAJER; Anna CHALOUPKA; Daniela ŽÁKOVÁ et al.

Základní údaje

Originální název

Danon disease is an underdiagnosed cause of advanced heart failure in young female patients: a LAMP2 flow cytometric study

Autoři

GURKA, Jiri; Lenka PIHEROVA; Filip MAJER; Anna CHALOUPKA; Daniela ŽÁKOVÁ; Ondrej PELAK; Alice KREBSOVA; Petr PEICHL; Jan KREJČÍ; Tomáš FREIBERGER ORCID; Vojtech MELENOVSKY; Josef KAUTZNER; Tomas KALINA; Jakub SIKORA a Milos KUBANEK

Vydání

ESC Heart Failure, San Francisco, Wiley Periodicals, 2020, 2055-5822

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

30201 Cardiac and Cardiovascular systems

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 4.411

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14110/20:00116651

Organizační jednotka

Lékařská fakulta

EID Scopus

Klíčová slova anglicky

Advanced heart failure; Danon disease; Lysosomal-associated membrane protein type 2; Screening; White blood cells

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 10. 10. 2021 10:21, Mgr. Tereza Miškechová

Anotace

V originále

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.