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Anesth Analg 2001;92:76-79
© 2001 International Anesthesia Research Society

PEDIATRIC ANESTHESIA

Volume Ventilation of Infants with Congenital Heart Disease: A Comparison of Dräger, NAD 6000 and Siemens, Servo 900C Ventilators

Stephen A. Stayer, MD*, Dean B. Andropoulos, MD*, Sabrina T. Bent, MD*, E. Dean McKenzie, MD{dagger}, and Charles D. Fraser, MD{dagger}

Divisions of *Pediatric Cardiovascular Anesthesiology and {dagger}Congenital Heart Surgery, Baylor College of Medicine, Texas Children’s Hospital, Houston, Texas

Address correspondence and reprint requests to Stephen Stayer, MD, Department of Anesthesiology, Texas Children’s Hospital, 6621 Fannin, Suite 310, Mailcode 2-1495, Houston, TX 77030. Address e-mail to sstayer{at}bcm.tmc.edu

We compared the ventilation and pulmonary mechanics produced by a new anesthesia ventilator (NAD 6000) using a circle system with that produced by a critical care ventilator (Servo 900C) using a nonrebreathing circuit in infants with congenital heart disease. Twenty patients, aged 1 day to 7 mo, weighing 2.1 to 4.6 kg, were studied. The NAD 6000 had improved alveolar ventilation: PaCO2 43 ± 8 vs 47 ± 5 mm Hg (P = 0.005), end-tidal CO2 34 ± 7 vs 37 ± 5 mm Hg (P = 0.042); larger inspired tidal volumes 12.9 ± 2.8 vs 11.3 ± 2.2 mL/kg (P < 0.001), but with higher mean airway pressures 9.7 ± 1.6 vs 8.6 ± 1.3 cm H2O (P < 0.001). These differences in ventilation and airway pressures were not clinically significant. Although there were differences in observed ventilatory variables, both machines provided adequate ventilation when set in the volume control mode.

Implications: We compared two ventilators for use in infants. Twenty infants undergoing surgery for congenital heart defects were randomized to receive ventilation first with one ventilator, then with the other. Although there were differences in observed ventilatory variables, both machines provided adequate ventilation when set in the volume control mode.




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S. A. Stayer, L. K. Diaz, D. L. East, J. N. Gouvion, T. L. Vencill, E. D. McKenzie, C. D. Fraser, and D. B. Andropoulos
Changes in Respiratory Mechanics Among Infants Undergoing Heart Surgery
Anesth. Analg., January 1, 2004; 98(1): 49 - 55.
[Abstract] [Full Text] [PDF]


Lippincott, Williams & Wilkins Anesthesia & Analgesia® is published for the International Anesthesia Research Society® by Lippincott Williams & Wilkins with the assistance of Stanford University Libraries' HighWire Press®. Copyright 2006 by the International Anesthesia Research Society. Online ISSN: 1526-7598   Print ISSN: 0003-2999 HighWire Press
Copyright © 2001 by the International Anesthesia Research Society.