Korean J Anesthesiol.  1996 May;30(5):554-560. 10.4097/kjae.1996.30.5.554.

Comparison of Mechanical and Manual Ventilation with Jackson-Rees System in Pediatric Anesthesia

Affiliations
  • 1Department of Anesthesiology, College of Medicine, InJe University, Pusan, Korea.

Abstract

BACKGROUND: Manual ventilation in pediatric anesthesia limits the anesthesiologist's ability to manage patients suffering from unexpected problems. Although modified Mapleson D systems connected to ventilators have been used for controled ventilation of anesthetized infants and children, the complexity of factors affecting rebreathing within the Mapleson D circuit has resulted in a variety of recommendations for fresh gas flow and minute ventilation. The aim of this study was to devise a formula for ventilator settings which would provide normal tidal volume, respiratory rate, and minute ventilation without rebreathing during mechanical ventilation in pediatric anesthesia and compare this method to manual ventilation.
METHODS
56 infants and small children anesthetized with enflurane and nitrous oxide were studied. We have constructed a formula for ventilator settings which would generate a predictable normocapnia. PetCO2, PaCO2, SpO2, and SaO2 were measured during manual ventilation (control) and during mechanical ventilation.
RESULTS
Mean PaCO2 with the mechanical ventilation was within normal range. PaCO2 was significantly lower (P<0.05) with the manual ventilation than with the mechanical ventilation.
CONCLUSIONS
We conclude that our formula for ventilator settings can be safely and competently applied to mechanical ventilation with Jackson-Rees system in pediatric anesthesia.

Keyword

Anesthesia; pediatric; Ventilation; mechanical

MeSH Terms

Anesthesia*
Child
Enflurane
Humans
Infant
Nitrous Oxide
Reference Values
Respiration, Artificial
Respiratory Rate
Tidal Volume
Ventilation*
Ventilators, Mechanical
Enflurane
Nitrous Oxide
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