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Original Article

Med Arch. 2020; 74(6): 428-432


Assessment of Left Ventricular Hypertrophy (LVH) Criteria by Surface Electrocardiography in a Sample of Iraqi Patients with Systemic Arterial Hypertension

Rafid Bashir Altaweel, Maher Abdulla Radhi.

Abstract
Background: Left ventricular hypertrophy (LVH) in hypertensive patients indicates an ongoing disease process involving the heart. Different electrocardiography (ECG) criteria were investigated; however, the results were conflicting. Objective: To evaluate different ECG criteria in diagnosis of LVH in hypertensive patients using echocardiography as a gold standard. Methods: A hospital based cross sectional observational study which included 140 adult patients with a history of hypertension. Patients were assessed for LVH using five ECG criteria: Romhilt-Estes, SokoloweLyon, Cornell voltage, Gubnere Ungerleider and Peguero-Lo Presti. Echocardiography was used to determine the left ventricular mass index for the patients. The sensitivity and specificity of each ECG criterion was determined considering echocardiography as a gold standard. Results: According to the echocardiographic results, 83 patients (59.29%) were found to have LVH. Age over 40 years, overweight and obesity, high systolic blood pressure (>170 mmHg) and using of antihypertensive drugs were significantly associated with the increased risk of LVH. All included ECG criteria showed low sensitivity and high specificity in detection of LVH in hypertensive patients. There were no significant differences in the efficiency of different ECG criteria in discrimination between mild, moderate and severe cases of LVH. Conclusion: LVH is very common among hypertensive patients, and the sensitivity of ECG criteria is low for these criteria to be clinically used for detection of LVH with high specificity, in which Cornell criterion is the best in detection.

Key words: Left ventricular hypertrophy, Left ventricular mass index, ECG criteria, systemic hypertension.



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