Ventricular extrasystoles masquerading as aberrantly conducted atrial extrasystoles because of postectopic T wave change.
This presentation reflects a case where broad and bizarre premature QRS complexes are preceded by sinus beats whose T wave is "abnormal," and seems to contain a premature P wave. A diagnosis of atrial extrasystoles with aberrancy thus could be entertained. The extrasystoles, however, are ventricular in origin. The pattern is explained on the basis of postectopic T wave change, that is, the change in configuration of the T wave that occurs in the sinus beat after an extrasystole.
Calabrò
M P
MP
Istituto di Pediatria Medica Preventiva e Sociale, Università di Messina, Italy.
Oreto
G
G
D005117:Cardiac Complexes, Premature / Q000175:diagnosis* / Q000503:physiopathology; D002648:Child; D004562:Electrocardiography; D005260:Female; D006352:Heart Ventricles / Q000503:physiopathology; D006801:Humans