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“Heart Rate‐Dependent” Electrocardiographic Diagnosis of Left Ventricular Hypertrophy
Author(s) -
MADIAS JOHN E.
Publication year - 2013
Publication title -
pacing and clinical electrophysiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.686
H-Index - 101
eISSN - 1540-8159
pISSN - 0147-8389
DOI - 10.1111/j.1540-8159.2012.03404.x
Subject(s) - medicine , cardiology , ventricle , left ventricular hypertrophy , qrs complex , heart rate , electrocardiography , ventricular tachycardia , tachycardia , blood pressure
A case is presented revealing the common phenomenon of heart rate‐dependent diagnosis of electrocardiographic (ECG) diagnosis of left ventricular hypertrophy (LVH), which consists of satisfaction of LVH criteria only at faster rates whereas ECGs with a slow heart rate do not satisfy such criteria. The mechanism of the phenomenon has been attributed to the tachycardia‐mediated underfilling of the left ventricle bringing the electrical “centroid” of the heart closer to the recording electrodes, which results in augmentation of the amplitude of QRS complexes, particularly in leads V2–V4. (PACE 2013; 36:e136–e137)