Myocardial infarction (MI) can be recognized by clinical features, including electrocardiographic (ECG) findings, elevated values of biochemical markers (biomarkers) of myocardial necrosis, and by ...

Dear Dr. Roach: I am a 79-year-old man in relatively good health. I don’t take any medications. I recently visited a cardiologist regarding some heart palpitations that I have been experiencing. After ...

Normal sinus rhythm Inferior ST segment elevation myocardial infarction Posterior myocardial infarction Left atrial enlargement A posterior wall MI frequently occurs along with an inferior wall MI due ...

Dear Dr. Roach: I am a 79-year-old man in relatively good health. I don’t take any medications. I recently visited a cardiologist regarding some heart palpitations that I have been experiencing. After ...

The posterior wall demonstrates ECG changes the opposite of other myocardial segments due to the location; thus, instead of ST segment elevation, a posterior myocardial infarction is characterized by ...

See related research article by Siha and colleagues on page 1135 and at www.cmaj.ca/lookup/doi/10.1503/cmaj.111683 One could imagine a scenario in which attention to ...

A rather anxious 23-year-old man attends with palpitations. A careful history suggests simple ectopic beats, perhaps exacerbated by his anxiety. There are no red flags in the history, he is a ...

A 50-year-old woman experiences jaw discomfort while at work. It increases in intensity, accompanied by diaphoresis and nausea. An ambulance is called 40 minutes after symptom onset. On arrival to the ...