Orthopnea
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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").
[edit] Causes
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.[citation needed] It is also associated with polycystic liver disease.[citation needed]
[edit] See also
[edit] References
- ^ orthopnea at Dorland's Medical Dictionary
- ^ "Dyspnea, Orthopnea, and Paroxysmal Nocturnal Dyspnea -- Clinical Methods -- NCBI Bookshelf". http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=cm&part=A454. Retrieved 2009-03-14.
- ^ Torchio R, Gulotta C, Greco-Lucchina P, et al. (August 2006). "Orthopnea and tidal expiratory flow limitation in chronic heart failure". Chest 130 (2): 472–9. doi:. PMID 16899847. http://www.chestjournal.org/cgi/pmidlookup?view=long&pmid=16899847.
- ^ Walker, H. Kenneth; Vaskar Mukerji (1990). Clinical Methods. Butterworths. ISBN 0407028536. http://www.ncbi.nlm.nih.gov/bookshelf/br.fcgi?book=cm&part=A454. Retrieved 2009-01-16.
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