comparison of the omron HEM 815F and direct arterial pressure monitoring during hypotensive anesthesia

ABSTRACT

The Omron HEM 815F was compared to direct intraarterial pressure monitories in 20 patients undergoing middle ear surgery, an operation that requires a period of hypotension which was achieved by using sodium nitroprusside infusion. Marked agreement was recorded for systolic arterial pressure and heart rate. However, there was no agreement of mean and diastolic pressures. Direct arterial pressure monitoring remains the method of choice