Influence of Leakage from Non-Invasive Positive Pressure Ventilation Mask on FiO2 Value Delivered by Home Oxygen Therapy Concentrator: A Bench Study on Simulating Patients with Chronic Obstructive Pulmonary Disease

Autor: Jun-ichi Kadota, Mayumi Doi, Mitsuhiro Nishitani, Kazuto Doi, Yukoh Yaegashi, Masaru Ando
Rok vydání: 2018
Předmět:
Zdroj: Health. 10:919-927
ISSN: 1949-5005
1949-4998
DOI: 10.4236/health.2018.107068
Popis: Introduction: During the application of non-invasive positive pressure ventilation (NPPV) therapy in home mechanical ventilation (HMV), leaks in the NPPV mask may occur owing to the position of the mask due to conditions such as skin disorders. Methods: To investigate whether such a leak affects FiO2 supplied to the alveoli, we simulated a patient with chronic obstructive pulmonary disorder during NPPV in HMV. In addition, FiO2 was measured in the portion assumed to be the mouth and lungs while setting the flow of the oxygen concentrator and leak amount based on a previous study. Results: FiO2 supplied to the lungs increased statistically significantly upon increasing the amount of leak (P < 0.001). Moreover, values measured for the mouth were similar. However, our results were different from those of a previous study. Conclusions: We observed that FiO2 supplied to alveoli can be reduced by a leak in the NPPV mask. Because our results differ from those previously reported, we believe that further studies should reassess the selection of respirators and oxygen concentrators.
Databáze: OpenAIRE