Correlation between Systolic Blood Pressure Measured by Return to Flow Versus Systolic Blood Pressure Measured by Arterial Catheter in the Adult Anesthetized Patient

摘要

The accurate measurement of blood pressure is essential to the conduct of a safe anesthetic. There is a continuing controversy over which means of blood pressure measurement is best in a particular clinical setting. This study examined the clinical usefulness of a new, automated, indirect method of systolic usefulness of a new, automated, indirect method of systolic blood pressure measurement using a return to flow technique. The new method of blood pressure determination has the advantage of providing one systolic pressure value every 10 seconds. This represents a significant improvement over the rate of determination currently available by indirect methods. Patients selected for this study were those whose medical condition or planned procedure required the insertion of an intra-arterial catheter prior to the induction of anesthesia. Blood pressure readings were recorded during a one minute determination cycle; simultaneous readings were taken from the digital display of the intra-arterial catheter. The results from the new indirect method were compared to simultaneous measurements obtained by an intra-arterial catheter.