A 26-year–old man without any known heart disease reports of intermittent palpitations that last for several minutes and he thinks terminate with coughing. He has been seen several times in an emergency department, but no etiology for the palpitations has been established. His baseline ECG is seen (ECG A).
He has an episode of palpitations that lasts several hours, which prompts another visit to the emergency department. An ECG during the palpitations is recorded (ECG B).
What Is the Diagnosis?
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From the Boston University School of Medicine, Boston, MA; Harvard Medical School, Boston, MA; VA Boston Healthcare System, Boston, MA.
- © 2015 American Heart Association, Inc.