Paroxysmal Nocturnal Dyspnea

**Semantic type:** Sign or Symptom

**Definition:** Sudden onset of shortness of breath that causes one to awaken coughing or wheezing; it may be associated with congestive heart failure or chronic obstructive pulmonary disease.

**Synonyms:** - Cardiac Asthma - PND - Paroxysmal nocturnal dyspnea