Info
Orthopnea
cardiovascular : common
- left ventricle dysfunction
diaphragm : Rare
primary
- myelopathy: Trauma
- Phrenic Nerve: Guillian Barre
- neuromuscular junction: myasthenia gravis
- muscle: dermatomyositis
secondary: Load on diaphragm
increase airway pressure
- chronic obstructive pulmonary disease
- asthma
- tracheomalacia
increase abdominal pressure
- obseity
- ascites