Related Experiment Video
Updated: Jul 10, 2026

Murine Echocardiography of Left Atrium, Aorta, and Pulmonary Artery
Published on: February 20, 2017
Hypertension images: electrocardiographic left ventricular hypertrophy
1Department of Medicine, Section of Cardiology, Hypertension Unit, Medical College of Georgia, Augusta, GA 30912-3105, USA.
Abstract:
The electrocardiogram is an inexpensive adjunct for assessing target organ damage in hypertensive patients. The gender-specific Cornell voltage criteria (men: R(aVL) + S(V3) >35 mm; women: R(aVL) + S(V3) >25 mm) have better overall accuracy than the often-used Sokolow-Lyon or Romhilt-Estes criteria. One of the earliest electrocardiographic findings of hypertensive heart disease is a duration of the negative phase of the P wave in chest lead V1 of >0.04 seconds, a manifestation of left atrial enlargement or abnormality. There is no other cardiovascular risk factor more potent than left ventricular hypertrophy with a "strain pattern." Despite limitations in determining hypertensive heart disease, the electrocardiogram provides other information that is useful in the management of patients with hypertension.
Related Concept Videos
Imaging Studies for Cardiovascular System I:Echocardiography
Indications: Echocardiography is utilized to diagnose heart failure, valve disorders, and myocardial infarction. It also assesses cardiac structures' size, shape, and motion, evaluates...
Mitral Regurgitation I: Introduction
Aortic Regurgitation II: Clinical Features and Diagnostic Tests
Heart Failure II: Pathophysiology
Cardiomyopathy III: Hypertrophic Cardiomyopathy
Hypertension III: Clinical Manifestations and Diagnostic Studies

