The investigators assess the changes in respiratory compliance according to different levels of positive end expiratory pressure (PEEP) in children under general anesthesia. In addition, the investigators evaluate the intratidal compliance-volume profile at each PEEP level and determine the optimal PEEP level during anesthesia.
Study Type
INTERVENTIONAL
Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Enrollment
47
The different levels of PEEP, 5 cmH2O, 8 cmH2O and 12 cmH2O, are applied serially. Mean respiratory compliance and intratidal compliance-volume profile are evaluated.
Seoul National University Hospital
Seoul, South Korea
Mean respiratory compliance
Mean static and dynamic compliance
Time frame: During 15 minutes after applying each level of PEEP
Compliance profile
We will determine Intratidal compliance-volume profile using the changes in compliance over time --\> I, merely increasing compliance profile; IH, increasing turning into horizontal compliance profile; D, merely decreasing compliance profile; HD, horizontal turning into decreasing compliance profile; IHD, increasing turning into horizontal and further turning into decreasing compliance profile If compliance profile is I, the PEEP is low. On the other hand, compliance profile is D, PEEP level is considered to be high.
Time frame: During 15 minutes after applying each level of PEEP
Airway resistance
Mean airway resistance
Time frame: During 15 minutes after applying each level of PEEP
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.