Блокада передневерхней ветви левой ножки пучка Гиса по данным электрокардиотопографии

Amplitude parameters of QRS complex are studied by means of electrocardiotopography in 42 healthy persons and 53 patients with left anterior hemiblock (LAH). For LAH redistribution of zones of I and II half of dipole circular motion, reduction of overlaping zones, appearance of qr zone in the right upper-anterior part of the chest, decreasing of amplitude of R wave on the anterior surface and increasing on the posterior upper-left area, increasing of amplitude of S wave on the lower anterior-left level of registration, more frequent appearance of multipolarity with registration of additional maximum of electropositivity, decreasing of the amplitude of all waves of QRS complex are typical. New additional diagnostic criterion of LAH is proposed, with high sensitivity, specificity and informativity.