Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Aortic insufficiency Electrocardiogram
Introduction
Overview
Overview
In aortic regurgitation, the electrocardiography findings are nonspecific. Electrocardiographic abnormalities in the patient with aortic regurgitation include left axis deviation and signs of left ventricular hypertrophy.[1]
Electrocardiogram
Electrocardiogram
Electrocardiographic abnormalities in the patient with aortic regurgitation include:[1][2][3]
- Nonspecific changes of ST and T wave (due to left ventricular enlargement)
- Right coronary artery ischemic changes (suggestive of aortic dissection)
- ST elevation in II, III, aVF (inferior MI)
- ST elevation in V3R and V4R (right ventricle MI)
- ST depression in V1-V3 (posterior MI)
- Left ventricular hypertrophy
- Left axis deviation
- Left atrial enlargement
- Left ventricular volume overload pattern (prominent Q waves in leads I, aVL, and V3 to V6 and relatively small R waves in V1)
- Left ventricular conduction defects (typically late in the disease process)
- Re-polarization abnormalities
- ST-segment depression in precordial leads
Shown below is an ECG depicting left ventricular hypertrophy. Copyleft image obtained courtesy of ECGpedia [4]
Shown below is an ECG depicting left axis deviation. Copyleft image obtained courtesy of ECGpedia [5]
References
References
- ↑ 1.0 1.1 Bonow RO, Carabello B, de Leon AC, Edmunds LH, Fedderly BJ, Freed MD; et al. (1998). “ACC/AHA Guidelines for the Management of Patients With Valvular Heart Disease. Executive Summary. A report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee on Management of Patients With Valvular Heart Disease)”. J Heart Valve Dis. 7 (6): 672–707. PMID 9870202.
- ↑ Nishimura RA, Otto CM, Bonow RO, Carabello BA, Erwin JP, Guyton RA; et al. (2014). “2014 AHA/ACC guideline for the management of patients with valvular heart disease: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines”. J Thorac Cardiovasc Surg. 148 (1): e1–e132. doi:10.1016/j.jtcvs.2014.05.014. PMID 24939033.
- ↑ Petit CJ, Gao K, Goldstein BH, Lang SM, Gillespie SE, Kim SI; et al. (2016). “Relation of Aortic Valve Morphologic Characteristics to Aortic Valve Insufficiency and Residual Stenosis in Children With Congenital Aortic Stenosis Undergoing Balloon Valvuloplasty”. Am J Cardiol. 117 (6): 972–9. doi:10.1016/j.amjcard.2015.12.034. PMID 26805657.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Cafer Zorkun, M.D., Ph.D. [2]; Varun Kumar, M.B.B.S.; Lakshmi Gopalakrishnan, M.B.B.S; Usama Talib, BSc, MD [3]