Intrinsic PEEP on static pressure-volume curves
Copyright policy )Intrinsic PEEP on static pressure-volume curves
The static pressure volume (PV) curve of the total respiratory system is a well established method to assess pulmonary mechanics during respiratory failure. We have tested the impact of auto-PEEP on the PV curve determination in 16 COPD patients. An isovolumic pressure increment (IPI) was found at the beginning of the curve and a close correlation between IPI and auto-PEEP level (r = 0.962) p less than 0.001) was observed. The regression equation was not significantly different from the identity line. We conclude that the appearance of IPI in PV curves is largely determined by auto-PEEP and it is a good estimate of the existing auto PEEP level.
- Hospital de Sant Pau Spain
Male, Positive-Pressure Respiration, Humans, Regression Analysis, Female, Lung Diseases, Obstructive, Middle Aged, Respiratory Insufficiency, Lung Compliance, Aged, Respiratory Function Tests
Male, Positive-Pressure Respiration, Humans, Regression Analysis, Female, Lung Diseases, Obstructive, Middle Aged, Respiratory Insufficiency, Lung Compliance, Aged, Respiratory Function Tests
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