• Joshua K Roach and Robert H Thiele.
• Department of Anesthesiology, University of Virginia School of Medicine, PO Box 800710, Charlottesville, VA, 22908-0710, USA. Electronic address: jr2px@hscmail.mcc.virginia.edu.
• Best Pract Res Clin Anaesthesiol. 2019 Jun 1; 33 (2): 127-138.

AbstractArterial blood pressure monitoring is a major part of the decision-making process for every anesthetic. It is important to recognize the advantages, disadvantages, and limitations of available measurement modalities as well as have some understanding of the engineering principles on which these measurements are based. Oscillometry is by far the most common modality used but is limited by its intermittent nature and inaccuracy during hypotension and hypertension. Arterial catheterization is the gold standard for measuring blood pressure but is an invasive procedure that is expensive and not without risk of harm to the patient. Volume clamp and tonometric technologies are relatively new and allow for continuous noninvasive monitoring of the blood arterial waveform, but their accuracy when compared with oscillometry is not well described, and they have not been widely incorporated into standard practice. Additional research is needed to determine whether continuous noninvasive blood pressure monitors can improve outcomes.Copyright © 2019 Elsevier Ltd. All rights reserved.

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