A man in his 60s presented to the emergency department with chest pain. He had a history of hypertension but no other cardiac history. His pain was described as a dull ache localized to his epigastrium; it had been constant for 4 hours, did not radiate, and was not exacerbated by exertion. Examination of the heart, lungs, and abdomen had normal results. A chest x-ray revealed no acute cardiopulmonary process. An electrocardiogram (ECG) was obtained and is shown in Figure 1.
Ray JC, Kusumoto F, Goldschlager N. A Case of P-Wave MimicryCherchez le P. JAMA Intern Med. 2015;175(10):1693-1694. doi:10.1001/jamainternmed.2015.3342