Alveolar-arterial oxygen gradient in the assessment of acute pulmonary embolism.

@article{Stein1995AlveolararterialOG,
  title={Alveolar-arterial oxygen gradient in the assessment of acute pulmonary embolism.},
  author={Paul D. Stein and Samuel Z. Goldhaber and J. W. Henry},
  journal={Chest},
  year={1995},
  volume={107 1},
  pages={139-43}
}
PURPOSE The purpose of this investigation is to evaluate the utility of the alveolar-arterial (A-a) oxygen gradient in the diagnosis of acute pulmonary embolism (PE) among patients who participated in the Prospective Investigation of Pulmonary Embolism Diagnosis (PIO-PED). METHODS Pulmonary embolism was diagnosed (n = 280) or excluded (n = 499) by angiography in all patients. Patients were then categorized as (1) the entire cohort, (2) no prior cardiopulmonary disease and no prior PE, and (3… CONTINUE READING
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