A 30-year-old man presented for evaluation of palpitations and exertional dyspnea when climbing stairs, mostly at night. Physical examination was unremarkable, except for sinus tachycardia. Laboratory test results were all within normal limits. The electrocardiogram showed sinus rhythm and early repolarization changes (Cover Image). Thirty-day event monitoring showed sinus tachycardia during episodes of palpitation. The transthoracic echocardiogram was also carried out (Cover Image).
The left ventricular ejection fraction was between 56% and 60%. The estimated pulmonary artery systolic pressure was 24 mmHg. A diagnosis of cortriatriatum was established. ##Disclaimer## The content provided on Docplexus is intended for educational purposes only. While we strive to ensure its accuracy, we make no warranties, explicit or implied, about the suitability, reliability, or adequacy of the…
