Seventy-five year old gentleman with a recent history of syncope and permanent pacemaker implantation.

Clinical History 263

Seventy-five year old gentleman with a recent history of syncope and permanent pacemaker implantation. Co-morbidities include chronic atrial fibrillation and past coronary artery bypass graft surgery.
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Sixty-four year old gentleman admitted to the hospital for evaluation of prostate cancer.

Clinical History 241

Sixty-four year old gentleman admitted to the hospital for evaluation of prostate cancer. His past medical history includes paroxysmal atrial fibrillation. His medications at the time of this electrocardiogram included atenolol and warfarin.
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Fifty-six year old gentleman with rheumatoid arthritis who is seen in the outpatient department

Clinical History 139

Fifty-six year old gentleman with rheumatoid arthritis who is seen in the outpatient department for a follow-up evaluation. He has no cardiac history and is on no cardiac medications.
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