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Orthopnea: Wikis


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ICD-10 R06.0
ICD-9 786.02

Orthopnea or orthopnoea (Greek from ortho, straight + pnoia, breath) is shortness of breath (dyspnea) which occurs when lying flat,[1] causing the person to have to sleep propped up in bed or sitting in a chair. It is the opposite of platypnea.

It is commonly measured according to the number of pillows needed to prop the patient up to enable breathing (Example: "3 pillow orthopnea").


Orthopnea is due to increased distribution of blood to the pulmonary circulation while recumbent, [2] but usually can be attributed to a more fundamental cause.

Orthopnea is often a symptom of left ventricular heart failure and/or pulmonary edema.[3][4] It can also occur in those with asthma and chronic bronchitis, as well as those with sleep apnea or panic disorder. It is also associated with polycystic liver disease.

See also




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