1. From: Arterial and Plethysmographic Waveform Analysis in Anesthetized Patients with Hypovolemia
Anesthes. 2010;113(1): doi: /ALN.0b013e3181da839f
Figure Legend:
Fig. 1. Arterial and pulse oximeter plethysmographic waveform analysis. Systolic pressure variation (SPV) is the difference between maximal and minimal systolic blood pressure; delta Up (dUp) is a maximal inspiratory minus apneic systolic blood pressure; delta Down (dDown) is an apneic minus minimal systolic blood pressure during expiration; pulse pressure (PP) is a difference between systolic and diastolic blood pressure, PPmax= maximal PP during inspiration; PPmin= minimal PP during expiration; PPV = pulse pressure variation. Plethysmographic waveform variation (PWV) was measured as a difference between maximal and minimal pulse oximeter signals divided by the pulse oximeter signal amplitude during apnea. Pulse oximetry plethysmographic (POP) max and min are defined as maximal and minimal waveform amplitudes over one respiratory cycle.
Date of download: 12/28/2017
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