Does measurement of systolic blood pressure with a pulse oximeter correlate with conventional methods?
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The pulse oximeter is commonly used in the operating room. We evaluated the use of a pulse oximeter to monitor systolic blood pressure in 20 healthy volunteers and 42 anesthetized patients. We compared the pulse oximeter method of measuring systolic blood pressure with the cuff methods using Korotkoff sounds and Doppler ultrasound as well as with direct pressure measurement through an intraarterial cannula. Systolic blood pressure values obtained by pulse oximeter correlated well with values obtained by other conventional methods. The best correlation was found with Doppler ultrasound (r = 0.996) and the worst with arterial cannulation (r = 0.880). We conclude that this method can be used intraoperatively to measure systolic blood pressure.
Key WordsMeasurement techniques: pulse oximetry Monitoring: blood pressure Equipment: blood pressure cuffs, cannulas Doppler pulse oximeters
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- 3.Kirkendall WM. Feinleib M, Freis ED, Mark AL. Recommendations for human blood pressure determination by sphygmomanometers. Dallas: American Heart Association, 1980:1146A-1155A (AHA Committee Report 70-019-B)Google Scholar
- 6.Gravenstein JS, Paulus DA. Monitoring practice in clinical anesthesia. Philadelphia: Lippincott, 1982:37–88Google Scholar
- 8.Van Bergen FH, Weatherhead DS, Treloar AE, et al. Comparison of indirect and direct methods of measuring arterial blood pressure. Circulation 1954;10:481–490Google Scholar
- 9.Bruner JMR, Krenis LJ, Kunsman JM, Sherman AP. Comparison of direct and indirect methods of measuring arterial blood pressure. Med Instrum 1981;14:182–188Google Scholar
- 10.Hamilton WF, Dow P. An experimental study of the standing waves in the pulse propagated through the aorta. Am. J Physiol 1939;125:48–59Google Scholar