Years of palpitations and a heart rate of 213 beats per minute

Figures

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  Figure 1. Initial ECG upon emergency department evaluation showing sinus tachycardia with occasional premature ventricular complexes.

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  Figure 2. Repeat ECG in the emergency department indicating Belhassen tachycardia as evidenced by a rate of 213 bpm and a right bundle branch block (RBBB) and left axis deviation. This was a unique case of Belhassen ventricular tachycardia in which the heart rate greater than 200 bpm and a QRS that intermittently dropped below 120 msec were seen.

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  Figure 3. Echocardiogram findings indicated no significant structural heart disease. Mild tricuspid regurgitation, mild mitral regurgitation, and normal left ventricle systolic function with an ejection fraction of 60–65% were all noted.