Role of genetic testing in arrhythmogenic right ventricular cardiomyopathy/dysplasia.
In a cohort of patients with confirmed or suspected arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D), genetic testing is useful in confirming the diagnosis, particularly in individuals who do not completely fulfil Task Force criteria for the disease, thereby also enabling the adoption of preventive measures in family members. Due to the high percentage of novel mutations that are expected to be identified in ARVC/D, the use of genetic screening technology based on the identification of known mutations seems to have very restricted value. Our results support that the presence of certain genetic variations could play a role in the final phenotype of patients with ARVC/D, where single and compound mutation carriers would have more symptomatic forms of the disease and the polymorphism P366L could be associated to a more benign phenotype.
Institut de Cardiologie de Montréal, Montréal, Québec, Canada.
C
C
Barahona-Dussault
B
B
Benito
O
O
Campuzano
A
A
Iglesias
T L
TL
Leung
L
L
Robb
M
M
Talajic
R
R
Brugada
D000328:Adult; D019571:Arrhythmogenic Right Ventricular Dysplasia / Q000175:diagnosis / Q000235:genetics*; D015331:Cohort Studies; D051187:Desmocollins / Q000235:genetics; D051301:Desmoglein 2 / Q000235:genetics; D051180:Desmoplakins / Q000235:genetics; D005260:Female; D005820:Genetic Testing; D006801:Humans; D008297:Male; D008875:Middle Aged; D009154:Mutation; D051191:Plakophilins / Q000235:genetics; D011110:Polymorphism, Genetic
C081561:DSC2 protein, human; C495314:DSG2 protein, human; C495294:DSP protein, human; D051187:Desmocollins; D051301:Desmoglein 2; D051180:Desmoplakins; C495337:PKP2 protein, human; D051191:Plakophilins