Understanding mechanical insufflation-exsufflation and airway clearance techniques for patients with impaired cough reflex and retained secretions.
Retained bronchial secretions increase airway resistance, compromise gas exchange, and heighten pulmonary infection risks in non-ambulatory and neuromuscular patients.
Mechanical Insufflation-Exsufflation (MIE) devices simulate a natural cough by gradually inflating the lungs with positive pressure followed by a rapid shift to negative pressure.
Integrating oscillation features during inspiration and expiration mobilizes mucus plugs from lower peripheral airways into the trachea for safe evacuation.