A young man nearing the end of his second decade with no significant medical history presented to the emergency department with a 1-day history of intermittent palpitations and chest pain associated with shortness of breath. On presentation, the patient appeared anxious with a heart rate of 101 beats per minute, respiratory rate of 20 breaths per minute, blood pressure of 151/79 mm Hg, and pulse oximetry of 96% in room air. His cardiopulmonary examination results, complete blood cell count, basic metabolic panel, and cardiac troponins were all within normal limits. His electrocardiogram on presentation and echocardiogram are shown in Figure 1 and the Video.
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CME Disclosure Statement: Unless noted, all individuals in control of content reported no relevant financial relationships. If applicable, all relevant financial relationships have been mitigated.
Corresponding Author: Hitesh Raheja, MD, Maimonides Medical Center, 4802 10th Ave, Brooklyn, NY 11219 (firstname.lastname@example.org).
Published Online: October 13, 2021. doi:10.1001/jamacardio.2021.4017
Conflict of Interest Disclosures: None reported.
Credit Designation Statement: The American Medical Association designates this Journal-based CME activity activity for a maximum of 1.00 AMA PRA Category 1 Credit(s)™. Physicians should claim only the credit commensurate with the extent of their participation in the activity.
Successful completion of this CME activity, which includes participation in the evaluation component, enables the participant to earn up to:
It is the CME activity provider's responsibility to submit participant completion information to ACCME for the purpose of granting MOC credit.
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