Different Low Flow Rates on Gas Exchange in Children During Apnea
Trial Parameters
Brief Summary
Effect of Low flow apneic oxygenation in pediatrics on rate of accumulation of transcutaneous carbon dioxide also, had been studied, compared to high flow rates. Furthermore, a recent study in apneic anesthetized adult discussed the rate of accumulation of carbon dioxide in arterial blood during 4 min of apnea but, no study in pediatrics discussed the effect of different low flow rates on rate of carbon dioxide accumulation during a period of apnea. Aim of the study: the authors aim to study the effect of different flow rates of low flow oxygenation during 3 min of apnea in anesthetized children on the rate of accumulation of carbon dioxide
Eligibility Criteria
Inclusion Criteria: * Children aged 1 to 6 years old weighting 10-20 kg. * American Society of Anesthesiologists (ASA) physical status I or II. * Children will be scheduled for elective surgery under general anesthesia. Exclusion Criteria: * Parent refusal * Patient required nasal intubation * Children with a cardio-respiratory disease like asthma or recent upper respiratory infection. * Anemia. * Obstructive sleep apnea, sepsis. * Children prone to hypoxia or hypercarbia, and upper airway obstruction. * Children reported to have nasal obstruction .