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ACCP-SEEK Board Review Question of the Month |

A 55-Year-Old Man With Acute Myocardial Infarction Develops Tachycardia Following Balloon Angioplasty*

E. William Hancock, MD, FCCP
Author and Funding Information

*From the ACCP-SEEK program, reprinted with permission. Items are selected by Department Editors Richard S. Irwin, MD, FCCP, and John G. Weg, MD, FCCP. For additional information about the ACCP-SEEK program, phone 1-847-498-1400.



Chest. 1999;116(1):243-244. doi:10.1378/chest.116.1.243
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Extract

A 55-year-old man was admitted to the ICU with an acute myocardial infarction. He was managed with immediate cardiac catheterization and balloon angioplasty of a totally occluded right coronary artery, leaving a 30% residual stenosis. The creatine kinase level was 2,200 U/L (17% MB fraction) 6 h after the procedure. At this time, frequent runs of tachycardia begin to occur (Fig 1). The patient is not aware of these, and is free of chest discomfort. Which of the following therapies is most appropriate?

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