A method for measuring tidal volume during high frequency jet ventilation. 1988

J D Young, and M K Sykes
Nuffield Department of Anaesthetics, Radcliffe Infirmary, Oxford.

A new method has been developed to measure tidal volume during high frequency jet ventilation. A pneumotachograph is placed in the expiratory limb of the breathing circuit. Using a model lung, the results from this method did not differ from the tidal volume calculated from pressure changes measured within the model lung. The results from the two methods correlated well (r = 0.99). The method enables the gas volumes entrained and spilled out of the airway during inspiration, true I:E ratios and mean driving pressures to be determined. The method is non-invasive and could easily be applied clinically.

UI MeSH Term Description Entries
D008176 Lung Volume Measurements Measurement of the amount of air that the lungs may contain at various points in the respiratory cycle. Lung Capacities,Lung Volumes,Capacity, Lung,Lung Capacity,Lung Volume,Lung Volume Measurement,Measurement, Lung Volume,Volume, Lung
D006611 High-Frequency Jet Ventilation Respiratory support system used primarily with rates of about 100 to 200/min with volumes of from about one to three times predicted anatomic dead space. Used to treat respiratory failure and maintain ventilation under severe circumstances. Ventilation, High Frequency Jet,High Frequency Jet Ventilation,High-Frequency Jet Ventilations,Jet Ventilation, High-Frequency,Jet Ventilations, High-Frequency,Ventilation, High-Frequency Jet,Ventilations, High-Frequency Jet
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D013990 Tidal Volume The volume of air inspired or expired during each normal, quiet respiratory cycle. Common abbreviations are TV or V with subscript T. Tidal Volumes,Volume, Tidal,Volumes, Tidal

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