[Duration of QRS complexes in arrhythmogenic right ventricular dysplasia. A new non-invasive diagnostic marker].
Arrhythmogenic right ventricular dysplasia (ARVD) may result in sudden death of young and sometimes athletic individuals, while if properly treated it is associated with a good prognosis. It is probably more widespread than currently thought. Comparison of the electrocardiograms of 43 ARVD patients with those of 44 normal individuals provided a new criterion enabling identification of the disease. Measurement of a QRS interval longer than 110 ms in sinus rhythm in lead V1 in an individual with an apparently normal heart enabled identification of the disease with a sensitivity of 55 p. cent and specificity of 100 p. cent if used alone, and a sensitivity of 60 p. cent if used in combination with a prolongation of QRS in lead V3 to greater than 110 ms, but with a specificity of 82 p. cent. After elimination of appearances of right bundle branch block, sensitivity was 50 p. cent for V1. This parameter studied in a hospital population should be validated in minor forms before leading to compulsory ECGs for individuals in high-risk occupations (athletes, public vehicle drivers, etc.).
Fontaine
G
G
Service de Rythmologie et de Stimulation Cardiqque, Hôpital Jean-Rostand, Ivry-sur-Seine.
Umemura
J
J
Di Donna
P
P
Tsezana
R
R
Cannat
J J
JJ
Frank
R
R
D000328:Adult; D000367:Age Factors; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000503:physiopathology; D004562:Electrocardiography / Q000295:instrumentation / Q000379:methods; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006352:Heart Ventricles / Q000002:abnormalities*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D013997:Time Factors
La durée des complexes QRS dans la dysplasie ventriculaire droite arythmogène. Un nouveau marqueur diagnostique non invasif.