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KMID : 0356919960300050554
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Korean Journal of Anesthesiology
1996 Volume.30 No. 5 p.554 ~ p.560
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Comparison of Mechanical and Manual Ventilation with Jackson-Rees System in Pediatric Anesthesia
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Abstract
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Background:
@EN 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
ventilazor 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.
@ES Methods:
@EN 56 infants and small children anesthetized with enflurane and nitrous oxide studied. We have constructed a formula for ventilator settings which would generate a predictable normocapnia. PEICO2, PaCO2, SpO2, and SaO2 were measured during
manual
ventilation (control) and during mechanical ventilation.
@ES Results:
@EN Mean PaCO2 with the mechanical ventilation was within normal range. PaCO2 was significantly lower (P<0.05) with the manual ventilation than with the mechnical ventilation.
@ES Conclusions:
@EN We conclude that out formula for ventilator settings can be safely and competently applied to mechanical ventilation with Jackson-Rees system in pediatric anesthesia. (Korean J anesthesiol 1996; 30: 554~560)
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