Cardiology Case Report: Syncope Plus Shortness of Breath

Our latest case report from Brady Pregerson, MD, features a woman in her 20s presenting with dyspnea and palpitations followed by a syncopal episode. Check out the EKG and see if you can determine the correct diagnosis.

History: A woman in her 20s presents to the emergency department with dyspnea and palpitations followed by a syncopal episode. She denies chest pain, fever, cough, injury from the fall, or other complaints. She denies any significant past medical history.

Exam: Vital signs are normal except for a pulse around 130 and a BP around 105

EKG is Done:

What is the most likely diagnosis?