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  • Title: [Practical value of Frank's leads in electrocardiographic diagnosis of myocardial infarction].
    Author: Petelenz T, Knosała P, Zaorski K.
    Journal: Pol Tyg Lek; ; 45(10-11):211-5. PubMed ID: 2216942.
    Abstract:
    Authors' own modification of Frank's leads is discussed. Potentials from these leads are recorded simultaneously with routine ECG. Frank's leads are used to increase possibility to diagnose myocardial infarction. Proposed leads in x, y, z, axis of Frank system enable to differentiate pathological QS wave in chest V1-V3 leads between myocardial infarction of the anterior wall and detectable intraventricular potentials in patients with emphysema. A lack of physiologic Q wave in "z+"-lead always indicates anterior wall infarction. Pronounced Q wave of "infarctional" character in y-lead x-lead--in the lesions to the lateral wall. Pathologies present in the posterior wall infarction while from cal Q wave from "z+"-lead facilitates diagnosis of the posterior wall infarction.
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