Biphasic Cuirass Ventilation- Chest Wall Disorders+

Abstract

The respiratory pump's main component is the chest wall, which is made up of the rib cage, belly, spine, and respiratory muscles. At all lung volumes, the elastic forces of the lung encourage passive inward recoil, whereas the elastic forces of the chest wall encourage passive outward recoil. Normally, the chest wall has a high compli- ance, which opposes that of the lung. As a result, the labor of breathing is minor when the respiratory muscles expand a healthy chest wall (in the same direction as the chest wall resting posture). However, when problems tighten and reduce the compliance of the chest wall, the work of breathing might increase dramatically [1). While diseases of the neuromuscular and chest wall systems are rare in isolation, they together make up a significant category of illnesses that can result in chronic ventilatory failure. This is most noticeable in scoliosis, kyphosis, following a thora- coplasty, muscular dystrophies such as Duchenne muscular dystrophy (DMD), myotonic dystrophy. postpoliomyelitis, and motor neurone disease. If bulbar func- tion is reduced, tracheostomy ventilation may be required; nevertheless, noninva- sive ventilation is recommended in other conditions. Positie pressure procedures utilizing nose and face masks are typically the initial choice, however negative pres- sure ventilation is an option.