The pulse oximeter perfusion index as a predictor for high illness severity in neonates

@article{Felice2002ThePO,
  title={The pulse oximeter perfusion index as a predictor for high illness severity in neonates},
  author={C. Felice and G. Latini and P. Vacca and R. Kopotic},
  journal={European Journal of Pediatrics},
  year={2002},
  volume={161},
  pages={561-562}
}
Following the first development in its modern form in 1972 by Takuo Aoyagi [1], pulse oximetry has become invaluable for monitoring oxygenation and pulse rate [4]. A constant amount of light (DC) from the pulseoximeter is absorbed by skin, other tissues, and nonpulsatile blood, while a variable amount of light (AC) is absorbed by pulsating arterial inflow. The pulsatile signal indexed against the non-pulsatile signal and expressed as a percentage (AC/DC · 100) is commonly referred to as the… Expand
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