QRS scoring systems for estimating ventricular function
نویسندگان
چکیده
منابع مشابه
Ventricular Tachycardia with Narrow QRS
gram. Tachyeardias originating in the left bundle branch and documented by right, left, and His bundle recordings have been produced in animals given excessive digitalis. We have noted a similar tachycardia in a patient with ischemic heart disease receiving digitalis during hypokalemia. The QRS complexes were 0.10 sec in duration and by contour suggested an ectopic focus located in the posterio...
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Pronounced dependence of ventricular endocardial QRS potentials on ventricular volume.
To evalulate the relation between ventricular endocardial potentials (QRS amplitude) and ventricular dimensions, left and right ventricular endocardial potentials were recorded with hook electrodes in anaesthetised open-chest dogs during transfusion and withdrawal of blood. Left ventricular end-diastolic diameter was measured by ultrasonic crystals, and end-diastolic volume was determined by th...
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The relation between the superior orientation of the QRS axis and the anatomical site of the defect in the ventricular septum in patients with a ventricular septal defect was studied. Of 1031 patients with a ventricular septal defect, 64 (6.2%) had a superior axis on their electrocardiogram. In 59% of these patients the defect was in the inlet portion of the ventricular septum or affected this ...
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ژورنال
عنوان ژورنال: Journal of the American College of Cardiology
سال: 1984
ISSN: 0735-1097
DOI: 10.1016/s0735-1097(84)80382-4