Breathing difficulty - lying down
Alternate Names : Waking at night short of breath, Paroxysmal nocturnal dyspnea, PND, Difficulty breathing while lying down, Orthopnea
Definition
Breathing difficulty while lying down is an abnormal condition in which a person must keep the head elevated (by sitting or standing) to be able to breathe deeply or comfortably. The condition may also cause a person to wake up suddenly during the night feeling short of breath (paroxysmal nocturnal dyspnea).
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