title: [Origin of the deep and wide T-wave in myocardial diseases].
abstract: The presented analysis concerns the clinical and electrocardiographic data of dynamic examinations of 15 patients in whom ECG recorded a deep and wide ("gigantic") inverted T-wave. In 5 cases the clinical and electrocardiographic data were compared with the anatomic ones. It was demonstrated that a wide and deep inverted T-wave is common in ischaemic heart disease and inflammatory lesions. Focal myocardial lesions (predominantly in the ventricular septum) combined with atrioventricular conductivity disorders in the His-Purkinje system were found to play a definite role in the genesis of the "gigantic" T-wave. In some cases the wide T-wave may develop due to a fusion of T and U-waves. Patients with such ECG alterations suffer severe rhythm disorders in the form of frequent polytopic extrasystoles, paroxysmal ventricular tachycardia, ventricular fibrillation.
mesh_terms: D000208:Acute Disease; D000368:Aged; D001145:Arrhythmias, Cardiac / Q000209:etiology; D004562:Electrocardiography; D005260:Female; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D009203:Myocardial Infarction / Q000503:physiopathology*; D009205:Myocarditis / Q000503:physiopathology*
vernacular_title: Genez glubokogo i shirokogo zubtsa T pri zabolevaniiakh miokarda.