Dyspnea is a comprehensive manifestation of subjective sensation and objective signs.According to BORSAM Biomedical
, Patients subjectively feel insufficient inspiration and labored breathing, while objectively, it is manifested as changes in respiratory frequency, rhythm and depth. In severe cases, open mouth breathing, flapping of the nose, seated breathing, or even cyanosis may occur. Dyspnea is one of the main clinical symptoms of respiratory failure. So what causes dyspnea?
The etiology of dyspnea
Dyspnea is an important symptom of respiratory insufficiency. What causes dyspnea?
1. Respiratory diseases
Airway obstruction, lung disease, chest wall, thoracic and pleural diseases, diaphragmatic diseases and limited movement.
2. Cardiovascular diseases
Various causes of heart failure, cardiac tamponade, constrictive pericarditis and so on.
3. The other
Obesity, acidosis, acute infection, and blood diseases can also cause respiratory failure.