The Role of Point-of-Care Ultrasound in the Emergency Department: The Case of a Contained Rupture of the Ascending Aorta Due to Type A Dissection Causing Subacute Cardiac Tamponade.

• POCUS diagnosed AAS complicated by cardiac tamponade. • POCUS facilitated lifesaving emergency ascending aorta and hemiarch replacement. • The diagnostic accuracy of POCUS in AAS remains highly operator dependent.