Giant P wave in a patient with right ventricular cardiomyopathy.
A P wave of 7.5 mm in lead I and 12.5 in V1 was detected in a 28-year-old man, with a progressive cardiomegaly since the age of 14 years. At last admission he had minor symptoms, and a systolic murmur consistent with tricuspid regurgitation. The electrocardiogram showed an extremely tall P wave and a QRS of a very low amplitude; T waves were inverted on the precordial leads. These ECG features, and subsequent investigations, were consistent with right ventricular cardiomyopathy with massive tricuspid regurgitation, and right atrial abnormality.
Martini
B
B
Department of Cardiology, University of Padua, Italy.
Nava
A
A
Buja
G F
GF
Canciani
B
B
Bigolin
E
E
Dalla Volta
S
S
D000328:Adult; D001282:Atrial Flutter / Q000503:physiopathology; D002312:Cardiomyopathy, Hypertrophic / Q000503:physiopathology*; D004452:Echocardiography; D004562:Electrocardiography; D005500:Follow-Up Studies; D006329:Heart Conduction System / Q000503:physiopathology; D006330:Heart Defects, Congenital / Q000503:physiopathology*; D006352:Heart Ventricles / Q000503:physiopathology*; D006801:Humans; D008297:Male