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Alveolar-arterial oxygen gradient in acute chest syndrome of sickle cell disease

U Emre1, S T Miller, S P Rao

  • 1State University of New York-Children's Medical Center of Brooklyn 11203.

The Journal of Pediatrics
|August 1, 1993
PubMed

Insights

The alveolar-arterial oxygen gradient is the strongest indicator of acute chest syndrome severity in children with sickle cell disease. This measure predicts clinical severity and the need for blood transfusions.

Area of Science:

  • Pediatrics
  • Hematology
  • Pulmonology

Background:

  • Acute chest syndrome (ACS) is a common and serious complication of sickle cell disease (SCD).
  • Assessing ACS severity is crucial for timely and appropriate management in pediatric patients.

Purpose of the Study:

  • To identify the strongest predictor of disease severity in pediatric patients experiencing acute chest syndrome (ACS) in sickle cell disease (SCD).
  • To evaluate the utility of the alveolar-arterial oxygen gradient as a severity indicator for ACS in children.

Main Methods:

  • Analysis of 44 episodes of ACS in 37 children with SCD.
  • Evaluation of clinical severity scores, hospital stay duration, transfusion data, and alveolar-arterial oxygen gradient.
  • Multivariate analysis to determine the strongest predictor of disease severity.

Main Results:

  • The alveolar-arterial oxygen gradient, measured during room air breathing, was identified as the strongest predictor.
  • This gradient effectively predicted both the clinical severity of ACS and the likelihood of requiring blood transfusion.

Conclusions:

  • The alveolar-arterial oxygen gradient is a powerful and reliable indicator for assessing ACS severity in children with SCD.
  • This finding can aid clinicians in better stratifying risk and guiding transfusion decisions in pediatric ACS patients.

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