Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector10523610.17816/kazmj105236Research ArticleCorrected orthogonal ECG leads in patients with chronic coronary insufficiencyOzolE. A.<p>Central Research Laboratory, Department of Hospital Surgery No. 2, Department of Therapy No. 1</p>info@eco-vector.comS. V. Kurashov Medical InstituteKazan State Medical University named after V. I. Lenin1510196950527282303202223032022Copyright © 1969, Eco-Vector1969<p>Corrected orthogonal ECG leads open up the prospect of increasing diagnostic capabilities and at the same time simplifying the ECG method of examination. We have shown the advantages of the modified Frankov system of corrected orthogonal leads in the study of patients with overload and hypertrophy of the ventricles of the heart, mitral stenosis, myocardial infarction. The present work aims to study ECG changes in the same system in patients with coronary insufficiency without any indication of a previous myocardial infarction.</p>Kazan Medical archiveКазанский медицинский архив