The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
A 64‐year‐old man underwent transthoracic echocardiography after a syncopal event. Two‐dimensional imaging demonstrated a linear density that appeared to divide the right atrium. Color doppler imaging demonstrated that inflow from the inferior vena cava, but not from the superior vena cava, was obstructed by this density. Injection of agitated saline through an upper extremity vein demonstrated that...