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The echocardiographic correlates of left ventricular hypertrophy diagnosed by electrocardiography
Insights
Electrocardiogram diagnosed left ventricular hypertrophy is primarily indicated by increased septal and left ventricular wall thickness on echocardiography. This study identified key echocardiographic correlates in 28 patients.
Area of Science:
- Cardiology
- Diagnostic Imaging
Background:
- Electrocardiograms (ECG) are used to diagnose left ventricular hypertrophy (LVH).
- Echocardiography provides detailed structural information about the left ventricle.
Purpose of the Study:
- To identify echocardiographic correlates of left ventricular hypertrophy diagnosed via ECG.
- To categorize patients based on echocardiographic findings suggestive of LVH.
Main Methods:
- Echocardiography was performed on 28 consecutive patients meeting ECG criteria for LVH.
- Patients were grouped based on interventricular septal thickness, left ventricular posterior wall thickness, and left ventricular internal dimension.
Main Results:
- 19 patients (68%) showed increased septal and posterior wall thickness (Group 1).
- 3 patients (11%) had isolated left ventricular internal dimension enlargement (Group 2).
- 2 patients (7%) exhibited increased dimensions and wall thickness (Group 3).
- 4 patients (14%) had normal echocardiograms (Group 4).
Conclusions:
- Increased interventricular septal and left ventricular posterior wall thickness are primary echocardiographic indicators of ECG-diagnosed LVH.
- Echocardiography effectively differentiates patterns of cardiac structural changes in LVH.
Abstract:
Echocardiography was performed in 28 consecutive patients who manifested accepted criteria for left ventricular hypertrophy on their electrocardiograms. Four groups of patients were identified: Group 1, nineteen (68%) who had an increase in both interventricular septal and left ventricular posterior wall thickness; Group 2, three patients (11%) with isolated enlargement of the left ventricular internal dimension; Group 3, two subjects (7%) with increased septal thickness, left ventricular posterior wall thickness and left ventricular internal dimension and Group 4, four patients (14%) with normal echocardiographic measurements. It is concluded that increases in both septal and left ventricular wall thickness are the primary echocardiographic correlates of left ventricular hypertrophy as diagnosed on the electrocardiogram.