Key result
A 49-year-old man with arrhythmogenic right ventricular cardiomyopathy presented with a giant epsilon wave reaching an amplitude of 0.9 mV, the largest reported to date.
Case Report (n=1)
No
This case reports an unusually large epsilon wave (0.9 mV) in a patient with ARVD/C, highlighting extreme ECG manifestations of the disease.
Recognize giant epsilon waves as possible in ARVC; extends reported amplitude range but leaves clinical implications open.
Epsilon wave, which is a major diagnosis criterion for arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVD/C), is defined as small amplitude potentials. The present case is a 49-year-old man with a history of syncope and palpitations for 6 months. The ECG documented ventricular tachycardia (VT) when the patient has palpitations. However, there has been a giant epsilon wave in sinus rhythm. Electroanatomic mapping also has a prominent double potential identified on ABL catheter. The amplitude of epsilon wave reached 0.9 mV, which might be the maximum epsilon wave until now.
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Bao et al. (2012) conducted a case report in Arrhythmogenic Right Ventricular Cardiomyopathy (n=1). ICD implantation and VT catheter ablation was evaluated on Amplitude of epsilon wave. A 49-year-old man with arrhythmogenic right ventricular cardiomyopathy presented with a giant epsilon wave reaching an amplitude of 0.9 mV, the largest reported to date.
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