Fluid aspiration during different suction conditions was compared using Kruskal-Wallis and Mann-Whitney test (Bonferroni correction ). Amount of fluid (mL) aspirated along the tube cuff and the airway pressure changes were recorded for each suction procedure. A closed tracheal suction system (CTSS) catheter (size 14Fr) was attached to the tracheal tube and suction was performed for 5, 10, 15, or 20 seconds under 200 or 300 cm Hâ‚‚O suction pressures. Positive pressure ventilation (PPV) with 15 cm Hâ‚‚O peak inspiratory pressure and 5 cm Hâ‚‚O positive end-expiratory pressure (PEEP) was used. High-volume low pressure tube cuffs of 7.5 mm internal diameter (ID) were placed in a 22 mm ID artificial trachea connected to a test lung.
This study investigated the effect of closed tracheal suctioning on aspiration of fluid past the tracheal tube cuff in an in vitro benchtop model. Massive aspiration past the tracheal tube cuff caused by closed tracheal suction system.ĭave, Mital H Frotzler, Angela Madjdpour, Caveh Koepfer, Nelly Weiss, MarkusĪspiration past the tracheal tube cuff has been recognized to be a risk factor for the development of ventilator-associated pneumonia (VAP).
In a comprehensive laboratory study, different tests namely, unconfined compressive strength (UCS) at the end of freeze-thaw/wet-dry (FT/ : W-D) cycles, resilient modulus (Mr) at the end of F-T/W-D cycles, vacuum saturation, tube suction, and moistur. In a comprehensive laboratory study, different tests namely, unconfined compressive strength (UCS) at the end of freeze-thaw/wet-dry (F-T/W-D) cycles, resilient modulus (Mr) at the end of F-T/W-D cycles, vacuum saturation, tube suction, and moisture. Tube suction test for evaluating durability of cementitiously stabilized soils.
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