Orthopnea is the sensation of breathlessness when lying down that goes away when sitting or standing up. It's a symptom most commonly caused by heart failure, but it can also occur from a severe ...

Information about orthopnea was available for all patients at baseline and for 143 patients at a 6-month to 1-year follow-up. A yes/no format standardized form collected the history of orthopnea.

Orthopnea can be defined as dyspnea that develops in the recumbent position and is relieved by elevation of the head with pillows. In the recumbent position, there is reduced pooling of fluid in ...