
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions β 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.
Friedreich's ataxia electrocardiogram
Introduction
Overview
Overview
An ECG may be helpful in the diagnosis of Friedreich’s ataxia. Findings on an ECG suggestive of Friedreich’s ataxia include: T-wave repolarization abnormalities especially in the inferior and lateral leads, Bundle branch blocks, ventricular hypertrophy, right axis deviation, short PR interval, interatrial block, left atrial enlargement and right atrial enlargement.
Electrocardiogram
Electrocardiogram
An ECG may be helpful in the diagnosis of Friedreich’s ataxia. Findings on an ECG suggestive of Friedreich’s ataxia include:[1][2][3][4][5][6]
- T-wave repolarization abnormalities, especially in the inferior and lateral leads, is the most common abnormalities seen on the electrocardiogram (ECG) of patients with Friedreich’s ataxia(approximately 85%).
- Bundle branch blocks is found in 15% of patients with Friedreich’s ataxia
- Ventricular hypertrophy, or right axis deviation
- Short PR interval in up to 24% of patients
- Interatrial block in up to 48% of patients
- Left atrial enlargement
- Right atrial enlargement
References
References
- β Hanson E, Sheldon M, Pacheco B, Alkubeysi M, Raizada V (January 2019). “Heart disease in Friedreich’s ataxia”. World J Cardiol. 11 (1): 1β12. doi:10.4330/wjc.v11.i1.1. PMCΒ 6354072. PMIDΒ 30705738.
- β Payne RM, Wagner GR (September 2012). “Cardiomyopathy in Friedreich ataxia: clinical findings and research”. J. Child Neurol. 27 (9): 1179β86. doi:10.1177/0883073812448535. PMCΒ 3674565. PMIDΒ 22764179.
- β Pousset F, Legrand L, Monin ML, Ewenczyk C, Charles P, Komajda M, Brice A, Pandolfo M, Isnard R, Tezenas du Montcel S, Durr A (November 2015). “A 22-Year Follow-up Study of Long-term Cardiac Outcome and Predictors of Survival in Friedreich Ataxia”. JAMA Neurol. 72 (11): 1334β41. doi:10.1001/jamaneurol.2015.1855. PMIDΒ 26414159.
- β Payne RM, Peverill RE (December 2012). “Cardiomyopathy of Friedreich’s ataxia (FRDA)”. Ir J Med Sci. 181 (4): 569β70. doi:10.1007/s11845-012-0808-7. PMIDΒ 22373590.
- β Weidemann F, StΓΆrk S, Liu D, Hu K, Herrmann S, Ertl G, Niemann M (August 2013). “Cardiomyopathy of Friedreich ataxia”. J. Neurochem. 126 Suppl 1: 88β93. doi:10.1111/jnc.12217. PMIDΒ 23859344.
- β Schadt KA, Friedman LS, Regner SR, Mark GE, Lynch DR, Lin KY (September 2012). “Cross-sectional analysis of electrocardiograms in a large heterogeneous cohort of Friedreich ataxia subjects”. J. Child Neurol. 27 (9): 1187β92. doi:10.1177/0883073812448461. PMCΒ 3674639. PMIDΒ 22752487.
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: MMJ
