Case history
Case history #1
A 42-year-old man complains of palpitations followed by dizziness and brief loss of consciousness. His wife reports that he is pale and short of breath. Emergency medical services were called and found him pulseless. The ECG revealed a rapid, irregular wide complex tachycardia. Later he was successfully resuscitated with two successive direct-current shocks.
Case history #2
A 35-year-old man presents to an emergency department with palpitations, SOB, dizziness, and chest pain of 4 hours duration. An ECG demonstrated narrow-complex short RP tachycardia that responded to intravenous adenosine. The ECG during sinus rhythm revealed ventricular pre-excitation.
Other presentations
Asymptomatic people are diagnosed during routine screening ECGs.
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