The Effects of Closed Endotracheal Suction on Ventilation During Conventional and High Frequency Oscillatory Ventilation. Export

@article{citeulike:5143666, abstract = {In newborn infants, closed endotracheal tube (ETT) suction may reduce associated adverse effects, but it is not clear whether ventilation is maintained during the procedure. We aimed to determine the effect of ETT size, catheter size, and suction pressure on ventilation parameters measured distal to the ETT. Suction was performed on a test lung, ventilated with conventional (CMV) and high-frequency oscillatory ventilation (HFOV) using ETT sizes 2.5-4.0 mm, catheter sizes 5-8 Fr and suction pressures 80-200 mmHg. Tracheal and circuit peak inspiratory pressure and positive end-expiratory pressure, and tracheal tidal volume (VT) were recorded for each suction episode. During both CMV and HFOV, tracheal pressures and VT were considerably reduced by suctioning; this reduction was dependent on the combination of ETT, catheter, and suction pressure. Loss of VT, inflation pressure (CMV), and pressure amplitude (HFOV) occurred primarily with insertion of the catheter, and loss of end-expiratory pressure (CMV) and mean tracheal pressure (HFOV) occurred with the application of suction. Circuit pressures were reduced to lesser degree. We conclude that airway pressures and tidal volume are not maintained during closed endotracheal suction with either CMV or HFOV, and choice of equipment and settings will affect the degree of interruption to ventilation.}, author = {Kiraly, Nicholas J. and Tingay, David G. and Mills, John F. and Morley, Colin J. and Dargaville, Peter A. and Copnell, Beverley}, citeulike-article-id = {5143666}, citeulike-linkout-0 = {http://dx.doi.org/10.1203/PDR.0b013e3181b337ec}, citeulike-linkout-1 = {http://view.ncbi.nlm.nih.gov/pubmed/19581839}, citeulike-linkout-2 = {http://www.hubmed.org/display.cgi?uids=19581839}, day = {1}, doi = {10.1203/PDR.0b013e3181b337ec}, issn = {1530-0447}, journal = {Pediatric research}, keywords = {hfo, ventilation}, month = {July}, posted-at = {2009-07-14 06:03:43}, priority = {2}, title = {The Effects of Closed Endotracheal Suction on Ventilation During Conventional and High Frequency Oscillatory Ventilation.}, url = {http://dx.doi.org/10.1203/PDR.0b013e3181b337ec}, year = {2009} }

TY - JOUR ID - citeulike:5143666 L3 - citeulike-article-id:5143666 N2 - In newborn infants, closed endotracheal tube (ETT) suction may reduce associated adverse effects, but it is not clear whether ventilation is maintained during the procedure. We aimed to determine the effect of ETT size, catheter size, and suction pressure on ventilation parameters measured distal to the ETT. Suction was performed on a test lung, ventilated with conventional (CMV) and high-frequency oscillatory ventilation (HFOV) using ETT sizes 2.5-4.0 mm, catheter sizes 5-8 Fr and suction pressures 80-200 mmHg. Tracheal and circuit peak inspiratory pressure and positive end-expiratory pressure, and tracheal tidal volume (VT) were recorded for each suction episode. During both CMV and HFOV, tracheal pressures and VT were considerably reduced by suctioning; this reduction was dependent on the combination of ETT, catheter, and suction pressure. Loss of VT, inflation pressure (CMV), and pressure amplitude (HFOV) occurred primarily with insertion of the catheter, and loss of end-expiratory pressure (CMV) and mean tracheal pressure (HFOV) occurred with the application of suction. Circuit pressures were reduced to lesser degree. We conclude that airway pressures and tidal volume are not maintained during closed endotracheal suction with either CMV or HFOV, and choice of equipment and settings will affect the degree of interruption to ventilation. JF - Pediatric research SN - 1530-0447 TI - The Effects of Closed Endotracheal Suction on Ventilation During Conventional and High Frequency Oscillatory Ventilation. KW - hfo KW - ventilation AU - Kiraly, Nicholas AU - Tingay, David AU - Mills, John AU - Morley, Colin AU - Dargaville, Peter AU - Copnell, Beverley PY - 2009/07/01/ UR - http://dx.doi.org/10.1203/PDR.0b013e3181b337ec ER -