Seventy-four year old woman with a history of breast cancer who is status post mastectomy

Clinical History 243

Seventy-four year old woman with a history of breast cancer who is status post mastectomy and chemotherapy administration This is a routine post-chemotherapy electrocardiogram.
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Twenty-six year old woman with recurrent palpitations who proceeded to undergo a successful radiofrequency ablation

Clinical History 231

Twenty-six year old woman with recurrent palpitations who proceeded to undergo a successful radiofrequency ablation of the slow atrioventricular nodal pathway with resolution of atypical atrioventricular nodal re-entrant tachycardia confirmed at the time of electrophysiology study.
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Eighty-fouryearold woman with a history of hypertension and spinal stenosis

Clinical History 227

Eighty-fouryearold woman with a history of hypertension and spinal stenosis who was noted to have a sudden onset tachycardia during preoperative evaluation. The patient received intravenous verapamil at which time she converted to normal sinus rhythm. Extended release verapamil was continued without further dysrhythmia recurrence.
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Forty-four year old woman with a several hour history of rapid heart beating1

Clinical History 129

Forty-four year old woman with a several hour history of'rapid heart beating1 and mild shortness of breath. Her past medical history includes hypertension. Her medications included lisinopril. The patient received intravenous adenosine which promptly converted this dysrhythmia to normal sinus rhythm.
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