Photoplethysmography: Beyond the Calculation of Arterial Oxygen Saturation and Heart Rate

  title={Photoplethysmography: Beyond the Calculation of Arterial Oxygen Saturation and Heart Rate},
  author={K. Shelley},
  journal={Anesthesia & Analgesia},
  • K. Shelley
  • Published 2007
  • Medicine
  • Anesthesia & Analgesia
  • In this article, I examine the source of the photoplethysmograph (PPG), as well as methods of investigation, with an emphasize on amplitude, rhythm, and pulse analysis. The PPG waveform was first described in the 1930s. Although considered an interesting ancillary monitor, the “pulse waveform” never underwent intensive investigation. Its importance in clinical medicine was greatly increased with the introduction of the pulse oximeter into routine clinical care in the 1980s. Its waveform is now… CONTINUE READING
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