Assessment of ductus arteriosus shunt in preterm infants supported by mechanical ventilation: effect of interatrial shunting.

@article{Evans1994AssessmentOD,
  title={Assessment of ductus arteriosus shunt in preterm infants supported by mechanical ventilation: effect of interatrial shunting.},
  author={Nick J Evans and Prabha Iyer},
  journal={The Journal of pediatrics},
  year={1994},
  volume={125 5 Pt 1},
  pages={778-85}
}
We studied 51 preterm infants (< 1500 gm) with serial color Doppler echocardiography to determine the impact of incompetence of the foramen ovale on the hemodynamic implications of shunting through a patent ductus arteriosus. Doppler and two-dimensional echocardiographic measures included left atrial/aortic root ratio, right (RVSV) and left ventricular stroke volumes (LVSV), and outputs to determine relative ventricular outputs (RVSV/LVSV) and to calculate the pulmonary/systemic flow ratio (Qp… CONTINUE READING

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