We compared the efficacy of positive pressure ventilation (PPV) vs negative pressure ventilation (NPV) in providing ventilatory muscle rest for five normal subjects and six patients with chronic ...

The iron lung used negative pressure ventilation (NPV), which “mimics natural breathing by creating negative pressure around the chest, causing the lungs to expand and pull in air,” explains ...

Both intermittent negative pressure ventilation (INPV) and positive pressure ventilation through a face or a nasal mask have been used recently for this purpose. nMV in ARF is reported to be ...

Paul Alexander, who was confined to living in and using a cylindrical negative-pressure ventilator for over 70 years after contracting polio as a child, died March 11. his family confirmed.