<unk>  <unk>  is defined as sudden, severe shortness of breath at night that awakens a person from sleep, often with coughing and wheezing.  It is most closely associated with congestive heart failure.<unk>  commonly occurs several hours after a person with heart failure has fallen asleep.<unk>  is often relieved by sitting upright, but not as quickly as simple orthopnea. Also unlike orthopnea, it does not develop immediately upon lying down.
Paroxysmal nocturnal dyspnea
Exercise intolerance
Platypnea
Sleep apnea
Trepopnea
Nocturnal asthma
Sleep Apnea
Central sleep apnea