Evaluating the Relationship Between Arterial Blood Pressure Changes and Indices of Pulse Oximetric Plethysmography
Anesthesia & AnalgesiaPublished 1 December 2002
Mohammad Golparvar, Hossein Naddafnia, Mahmoud Saghaei
Citations63
SJR quartileQ1
SJR score1.16
SNIP1.63
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TL;DR
The result of this study shows that the effect of pharmacologic hypotension on the plethysmographic waveform of pulse oximeter is similar to that of minimal hypovolemia, which means that blood volume may be inaccurately assessed by the inspection of ventilatory-induced cyclical changes of pulses oximetric waveform in the presence of hypotension.
Abstract
The cyclical respiratory-induced changes in the amplitude of the pulse oximeter waveform can be used to detect normotensive hypovolemia. This study shows that hypotension produces the same effect. Therefore, in hypotensive conditions, we cannot determine the presence of hypovolemia.
Keywords
MedicineEngineering
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