Affiliation:
1. University of Novi Sad, Faculty of Medicine, Novi Sad + Institute of Cardiovascular Diseases of Vojvodina, Sremska Kamenica
2. University of Novi Sad, Faculty of Medicine, Novi Sad
Abstract
Introduction. Hypertrophic cardiomyopathy is a disorder of the myocardium
characterized by asymmetric or symmetric left ventricular hypertrophy. It is
often an inherited disorder with an autosomal dominant pattern. The aim of
this study was to evaluate the electrocardiographic characteristics of
patients with hypertrophic cardiomyopathy, as well as to assess the accuracy
of current electrocardiographic criteria for left ventricular hypertrophy
used as indicators of hypertrophic cardiomyopathy. Material and Methods.
This retrospective study was conducted using hospital medical records of 42
patients with the diagnosis of hypertrophic cardiomyopathy. Detailed
electrocardiography analysis, apart from all the usual parameters, included
the calculation of indices used to diagnose left ventricular hypertrophy
including Sokolow augmented vector left, Cornell voltage, Cornell product,
and Sokolow-Lyon index. Results. Sinus rhythm was present in 95.2% of
patients, while atrial fibrillation was found in 4.8%. The majority of
patients presented with left axis deviation. A slight positive correlation
was found between the Sokolow augmented vector left index and posterolateral
wall thickness (r = 0.475; p < 0.05), and also between the Cornell voltage
index and posterolateral wall thickness (r = 0.368; p < 0.05). A borderline
positive correlation was found between the Cornell product index and
posterolateral wall thickness (r = 0.290; p = 0.063). Interventricular
septum thickness showed no significant correlation with any of the
electrocardiographic indices of left ventricular hypertrophy. Conclusion. In
patients with hypertrophic cardiomyopathy, the Sokolow augmented vector left
and Cornell voltage indices were the best indicators of posterolateral wall
hypertrophy, whereas none of the examined indices correlated well with the
interventricular septum thickness.
Publisher
National Library of Serbia