eCite Digital Repository
Volume Not Guaranteed: Closed Endotracheal Suction Compromises Ventilation in Volume-Targeted Mode
Citation
Kiraly, NJ and Tingay, DG and Mills, JF and Dargaville, PA and Copnell, B, Volume Not Guaranteed: Closed Endotracheal Suction Compromises Ventilation in Volume-Targeted Mode, Neonatology, 99, (1) pp. 78-82. ISSN 1661-7800 (2011) [Refereed Article]
![]() | PDF Restricted - Request a copy 90Kb |
Copyright Statement
Copyright 2010 S. Karger AG, Basel
Abstract
Background: Closed endotracheal suction interferes with
mechanical ventilation received by infants, but the change
to ventilation may be different when ventilator modes that
target expired tidal volume (V T e ) are used. Objective: To
measure airway pressure and tidal volume distal to the endotracheal
tube (ETT) during and after closed suction in a
volume-targeted ventilation mode with the Dräger Babylog
8000+, and to determine the time until V T e returns to the
baseline level. Methods: In this benchtop study, closed suction
was performed on 2.5- to 4.0-mm ETTs connected to a
test lung. 5–8 French suction catheters were used at suction
pressures of 80–200 mm Hg during tidal-volume-targeted
ventilation. Results: During catheter insertion and suction,
circuit inflating pressure increased and tidal volume was
maintained, except when a large catheter relative to the ETT
was used, in which case tidal volume decreased. End-expira-
tory pressure distal to the ETT was reduced during suction
by up to 75 cm H 2 O while circuit end-expiratory pressure was
unchanged. Reduction in end-expiratory pressure distal to
the ETT was greatest with large catheters and high suction
pressures. Following suction, circuit and tracheal inflat -
ing pressures increased and tidal volume increased before
returning to baseline in 8–12 s. Conclusions: Closed endotracheal
suction interferes with ventilator function in volumetargeted
mode, with substantially negative intra tracheal
pressure during suction, and the potential for high airway
pressures and tidal volumes following the procedure. These
effects should be considered and pressure limits set appropriately
whenever using volume-targeted ventilation.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | Endotracheal suction; Mechanical ventilation; Neonatal intensive care; Newborn infant |
Research Division: | Medical and Health Sciences |
Research Group: | Cardiorespiratory Medicine and Haematology |
Research Field: | Respiratory Diseases |
Objective Division: | Health |
Objective Group: | Clinical Health (Organs, Diseases and Abnormal Conditions) |
Objective Field: | Respiratory System and Diseases (incl. Asthma) |
Author: | Dargaville, PA (Professor Peter Dargaville) |
ID Code: | 78058 |
Year Published: | 2011 |
Web of Science® Times Cited: | 5 |
Deposited By: | Menzies Institute for Medical Research |
Deposited On: | 2012-06-13 |
Last Modified: | 2017-11-02 |
Downloads: | 1 View Download Statistics |
Repository Staff Only: item control page