High-Velocity Jet in the Right Atrium: What Is the Diagnosis?

Abstract

A 66-year-old man with a history of hypertension and hyperlipidemia presented to the emergency department with palpitations and was found to have paroxysmal supraventricular tachycardia. Auscultation of the chest revealed a high-pitched holosystolic murmur. A transthoracic echocardiogram showed a disturbed color flow signal in the right atrium (RA) not originating from the tricuspid valve (TV), with peak velocities of approximately 5 m/s (Fig. 1; Supplemental Digital Content 1, Supplemental Video 1, http://links.lww.com/AA/B283). Written informed consent was obtained from the patient for publication of this report and accompanying images.