Diphtheria electrocardiogram
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Dima Nimri, M.D. [2]
Overview
ECG in patients with diphtheria can be normal. However, in patients with diphtheria myocarditis, a wide range of abnormalities related to conduction and rhythm may be seen.
Electrocardiogram
ECG in patients with diphtheria can be normal. However, in patients with diphtheria myocarditis, a wide range of abnormalities related to conduction and rhythm may be seen. Some of the ECG findings in diphtheria myocarditis include:
- Prolonged PR or QT intervals
- Alterations in the ST segment, which can be elevation or depression
- Alterations in the T wave
- Atrioventricular block (AV block)
- Bundle branch block (BBB)
- Hemiblock
- Sinus bradycardia
- Arrythmias, such as supraventricular tachycardia (SVT) and ventricular tachycardia (VT)