Evaluation of a New Oscillometric Blood Pressure Monitor by the Cuff Inflation Method during Anesthesia

Abstract

The technique most commonly incorporated in automated noninvasive blood pressure devices is the oscillometric principle during blood pressure cuff deflation. A new oscillometric blood pressure device senses variations in cuff pressure resulting from arterial pulsation during blood cuff inflation and determines arterial blood pressure values. We compared the agreement of the new device with simultaneous direct radial artery blood pressure in 60 patients (300points). Limits of agreement (bias±SD) were 0.43±5.30mmHg for systolic and 3.36±7.10mmHg for diastolic blood pressure. The new oscillometric technique correlates well with the direct arterial technique and provides an acceptable measurement of arterial blood pressure during anesthesia.