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 ...

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 ...

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 Dr.

An iron lung, also known as a negative pressure ventilator, is a medical device used to assist individuals with respiratory insufficiency, particularly those affected by conditions such as polio ...