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Examines right heart oxygen saturation step-ups in 1,121 pediatric catheterisations, highlighting the variability of criteria used to detect intracardiac shunts.
To assess prevailing guidelines for the oximetric detection of intracardiac left-to-right shunts, we examined the variability of right heart oxygen saturation step-ups in 1121 catheterisations in children with aortic and pulmonary stenosis, who were studied as part of the joint study of the natural history of congenital heart defects.
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Freed et al. (1979) studied this question.
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