• Pediatric radiology · May 2002

    Comparative Study

    Increased inspiratory pressure for reduction of atelectasis in children anesthetized for CT scan.

    • Michael A Sargent, Douglas H Jamieson, Anita M McEachern, and Derek Blackstock.
    • Department of Radiology, Children's and Women's Health Centre of British Columbia, 4500 Oak Street, Vancouver BC V6H 3N1, Canada. msargent@cw.bc.ca
    • Pediatr Radiol. 2002 May 1;32(5):344-7.

    BackgroundAtelectasis is more frequent and more severe in children anesthetized for CT scan than it is in children sedated for CT scan.ObjectiveTo determine the effect of increased inspiratory pressure on atelectasis during chest CT in anesthetized children.Materials And MethodsAtelectasis on chest CT was assessed by two observers in three groups of patients. Group A comprised 13 children (26 lungs) anesthetized at inspiratory pressures up to and including 25 cm H2O. Group B included 11 children anesthetized at inspiratory pressures > or =30 cm H2O. Group C included 8 children under deep sedation.ResultsAtelectasis was significantly more severe in group A than in groups B and C. There was no significant difference between groups B and C.ConclusionAn inspiratory pressure of 30 cm H2O is recommended for children anesthetized for CT scan of the chest.

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