Finger arterial blood pressures determined by a newly developed sphygmomanometer, HEM-802F, were compared with arterial pressure obtained from direct measurement of the radial artery. An excellent correlation was found between the two methods (systolic: r =0.93, diastolic: r =0.91), although there was a large variability among individual subjects. The range of differences between them are from +32 to −13 mmHg for systolic and +15 to −25 mmHg for diastolic blood pressure measurement. HEM-802F underestimated systolic pressure (−4.0 mmHg) and overes timated diastolic pressure (+6.7 mmHg), compared with intra-arterial readings.
The HEM-802F was useful for the non-invasive arterial pressure monitoring during general anesthesia.