Why the study?
Does arterial tonometry accurately measure blood pressure compared to an intraarterial catheter in anesthetized adult patients?
Population
17 adult patients studied during general anesthesia
Comparison
Arterial tonometry system for continuous… vs Intraarterial catheter for simultaneous…
Design
Cross-sectional
Authors
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Substantial variability limits tonometry accuracy for individual readings in anesthesia; leaves open its added value over oscillometry after calibration.
Does arterial tonometry accurately measure blood pressure compared to an intraarterial catheter in anesthetized adult patients?
Arterial tonometry accuracy for individual blood pressure measurements is inferior to oscillometry alone, with discrepancies resulting from both the piezoelectric crystal array and oscillometry calibration.
Siegel et al. (1994) studied this question.
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