A 54-year-old college professor presents to the university health services with complaints of palpitations that began after an aerobics class and have persisted for >1 hour. She states that she has had palpitations in the past, although they have been self-terminating after several minutes. Her physical examination is normal except for a pulse rate that is regular at 148 bpm. An ECG (ECG A) is obtained.
An intervention (carotid sinus pressure) is performed while the ECG (ECG B) is recorded, and the heart rate slows.
What is the diagnosis?
To submit your diagnosis, go to http://circ.ahajournals.org/letters/submit/circulationaha;131/23/2092. The diagnosis will follow in the June 16 issue.
Please go to the journal’s Facebook page for more ECG Challenges: http://goo.gl/cm4K7. Challenges are posted on Tuesdays and Responses on Wednesdays.
- © 2015 American Heart Association, Inc.