Protocols for weaning from NIV: Appraisal of Evidence

Ventilatory support by artificial machines for respiratory failure used in 1950s during Copenhagen polio epidemic revolutionized the management of critically ill patients. Ventilatory support provided by “Iron – lung” during that epidemic was without need for placement of endotracheal tube, i.e., non-invasive ventilation. These ventilators though saved many lives during the polio epidemic however had many inherent limitations and were not suitable for all, especially patients with problem in respiratory derive...