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Atelectasis on pediatric chest CT: comparison of sedation techniques

M A Sargent1, A M McEachern, D H Jamieson

  • 1Department of Radiology, Children's & Women's Health Centre of British Columbia, 4500 Oak Street, Vancouver BC V6H 3N1, Canada.

Pediatric Radiology
|July 10, 1999
PubMed

Insights

Pulmonary atelectasis is more common and severe in children sedated with general anesthesia for chest CT scans compared to those receiving intravenous pentobarbital sedation. Forced inspiration may help mitigate this risk in anesthetized children.

Area of Science:

  • Pediatric Radiology
  • Anesthesiology
  • Pulmonary Imaging

Background:

  • Increased use of anesthesia for pediatric CT scans noted.
  • Sedation methods for pediatric chest CT scans vary.

Purpose of the Study:

  • Compare pulmonary atelectasis frequency and severity.
  • Evaluate atelectasis in children sedated by anesthesiologists vs. radiologists.
  • Assess outcomes using intravenous pentobarbital.

Main Methods:

  • Retrospective blinded review of 60 pediatric chest CT scans.
  • Compared 41 children sedated by radiologists with 19 sedated by anesthesiologists.
  • Median ages: 29 months (radiologist) vs. 25 months (anesthesiologist).

Main Results:

  • Atelectasis obscuring metastases occurred in 12% (radiology) vs. 68% (anesthesiology) sedations (P < 0.01).
  • Higher grades of atelectasis were observed in children under anesthesia (P < 0.01).

Conclusions:

  • General anesthesia leads to more frequent and severe atelectasis than pentobarbital sedation.
  • Consideration of forced inspiration techniques for anesthetized children undergoing chest CT is recommended.
  • Sedation method impacts pulmonary complication risk in pediatric CT imaging.
Abstract

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