The Journal of the Japanese Respiratory Society ONLINE JOURNAL
ABSTRACT
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Article in Japanese
Short Communication
Relationship between intermittent negative pressure level and tidal volume during biphasic cuirass ventilation in normal subjects
Jun Hirasawa1), Shinichi Arizono1), Hiroyuki Taniguchi2), Tomoya Ogawa1), Fumiko Watanabe1) and Ryuichi Hasegawa3)
1)Department of Rehabilitation, Tosei General Hospital
2)Department of Respiratory Medicine and Allergy, Tosei General Hospital
3)Department of Emergency and Intensive Care Medicine, Tosei General Hospital
ABSTRACT
The aim of this study was to investigate the effects of inspiratory negative pressure by biphasic cuirass ventilation on tidal volume and the relationship between pressure level and tidal volume in 15 normal subjects. We measured tidal volume during inspiratory negative pressures of -5, -10, -20 and -30 cm H2O. An inspiratory negative pressure of -30 cm H2O was necessary to increase tidal volume. We conclude that -30 cm H2O of biphasic cuirass ventilation significantly increases tidal volume in normal subjects.
KEYWORDS: Biphasic cuirass ventilation, Inspiratory negative pressure, Tidal volume
RECEIVED: 2011.2.9
JJRS, 49(12): 990-992, 2011
