动脉血压张力测量法的临床应用

Clinical evaluation of tonometry blood pressure monitor

目的 :研究张力血压 (TBP)测量法的临床应用特点及对血压变化的反应速度和准确性。方法 :40例择期行上腹部手术患者全麻下经足背动脉行IBP监测 ,同侧上肢行TBP和NIBP监测 ,每间隔 2min同步记录IBP、NIBP和TBP的SBP、MAP和DBP值 ,每例患者均记录 2 0对数据。结果 :IBP和TBP、IBP和NIBP、TBP和TBP之间的SBP ,MAP和DBP均具有良好的相关性 ,其中以NIBP和TBP的相关性最好 (SBP :r=0 98,MAP :r=0 96 ,DBP :r=0 97)。三种测量方法的SBP、MAP和DBP的变化趋势一致。血压出现急剧变化时 ,与IBP相比 ,TBP波峰滞后出现 ,峰值偏低。结论 :TBP测量法能较准确地反映患者的无创血压水平 ,能连续和实时地反映患者的动脉血压状况及变化趋势 ,但当血压发生急剧和 (或 )异常波动时需注意其应用的局限性。

Objectives: The comparison of the tendency and accuracy of artery blood pressure was made between tonometry, oscillometric and invasive technique Methods: The systolic, mean and diastolic blood pressure values for the tonometry and oscillometric on same pectoral limb, the invasive on dorsalis pedis were record at 2 min intervals during general anestheisa in 40 cases, scheduled for elective upper abdominal surgery Results: The correlation were good between tonometry oscillometric and invasive technique The tendency of the systolic, mean and diastolic blood pressure change between three methods were similar basically The peak value is smaller and the peak occurs delay in tonometry technique when the blood pressure changes markedly in a short time Conclusion: The tendency and accuracy of tonometry technique were good in common use The technique may be limited in critical care situations