Estimating actual inspiratory muscle pressure from airway occlusion pressure at 100 msec
نویسندگان
چکیده
منابع مشابه
Inspiratory muscle relaxation rate assessed from sniff nasal pressure.
BACKGROUND Slowing of the maximum relaxation rate (MRR) of inspiratory muscles measured from oesophageal pressure (POES) during sniffs has been used as an index of the onset and recovery of respiratory muscle fatigue. The purpose of this study was to measure MRR at the nose (PNASAL MRR), to investigate its relationship with POES MRR, and to establish whether PNASAL MRR slows with respiratory lo...
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We evaluated the use of pressure support to compensate for the added inspiratory work of breathing due to the resistances of endotracheal tubes and a ventilator demand-valve system for continuous positive airway pressure (CPAP). A mechanical model was used to simulate spontaneous breathing at five respiratory rates through 7-mm, 8-mm, and 9-mm endotracheal tubes with and without a ventilator de...
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BACKGROUND Late inspiratory rise in airway pressure (LIRAP, Paw/ΔT) caused by inspiratory muscle relaxation or expiratory muscle contraction is frequently seen during pressure support ventilation (PSV), although the modulating factors are unknown. METHODS We investigated the effects of respiratory mechanics (normal, obstructive, restrictive, or mixed), inspiratory effort (-2, -8, or -15 cm H2...
متن کاملReproducibility of twitch mouth pressure, sniff nasal inspiratory pressure, and maximal inspiratory pressure.
Twitch mouth pressure (Pmo,tw) during magnetic phrenic nerve stimulation and sniff nasal inspiratory pressure (SNIP) were recently proposed as alternative noninvasive methods for assessing inspiratory muscle strength. This study aimed to compare their reproducibility with maximal inspiratory pressure (MIP) in normal subjects. Ten healthy subjects were studied at functional residual capacity in ...
متن کاملAirway occlusion pressure and respiratory nerve and muscle activity in studies of respiratory control.
M.D.; Gabriel Zubillaga, M.D.; and Ruy V. Louren#{231}o, M.D. W e have evaluated the relationship between respiratory nerve and muscle electrical activity and airway occlusion pressure in both anesthetized animals and conscious humans. This relationship which reflects the coupling of the neuromuscular components of the respiratory control system was studied under conditions of unloaded and load...
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ژورنال
عنوان ژورنال: Journal of Mechanical Ventilation
سال: 2020
ISSN: 2694-0450
DOI: 10.53097/jmv.10003