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Neurally adjusted ventilatory assist(NAVA) Tatsutoshi SHIMATANI 1,2 , Nobuaki SHIME 1 1Department of Emergency and Critical Care Medicine Graduate School of Biomedical & Health Sciences Hiroshima University 2Department of Pediatrics Shinshu University Hospital pp.691-702
Published Date 2018/7/1
DOI https://doi.org/10.11477/mf.3102200546
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Neurally adjusted ventilator assist (NAVA) is a ventilator mode which regulates ventilator assistance based on diaphragm electrical activity (EAdi). Although potential lung-protective effects are postulated due to the use of physiological respiratory drive preventing excessive assist, no clinical trials have shown a significant improvement in outcomes. A substantial number of clinical trials have examined patient-ventilator synchrony and shown an improvement in overall asynchronous events with NAVA compared to conventional modes. By (1) preventing excessive assist and preventing diaphragm dysfunction, and (2) reducing excessive work of breathing and preventing respiratory muscle fatigue, this mode may reduce the work of breathing. Continuous EAdi monitoring may be able to more accurately identify excessive inspiratory effort, respiratory muscle fatigue, and asynchrony. Accumulation of knowledge of continuous NAVA mode and clinical trials evaluating clinical outcomes are expected.


Copyright © 2018, MEDICAL SCIENCES INTERNATIONAL, LTD. All rights reserved.

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電子版ISSN 2186-7852 印刷版ISSN 1883-4833 メディカル・サイエンス・インターナショナル

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