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  • Title: [Atrial tachycardia with atrioventricular block].
    Author: Ostapiuk FE, Aleksandrova EA, Sotskova TV.
    Journal: Kardiologiia; 1978 Apr; 18(4):51-7. PubMed ID: 671967.
    Abstract:
    A clinico-electrocardiographic analysis of 25 cases with atrial tachycardia and atrioventricular block was conducted. Confirmation was established of the connection between the development of atrial tachycardia with atrioventricular block and changes in the myocardium, circulatory insufficiency, acute coronary failure and toxicosis with cardiac glucosides. Such signs of atrial tachycardia with atrioventricular block as the rate of atrial rhythm of 150 to 250 per minute, the possibility of fluctuations in the P-P interval, the presence of an isoelectric PP segment, and atrioventricular block of various degree were found to be of the highest diagnostic value. It is presumed that the development of atrioventricular block in atrial tachycardia is linked with changes in the conducting system of the heart.
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