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许多病例的门诊血压与日常活动时或在家时的血压不一致,门诊时测得的血压一般都偏高。为了研究活动状态下血压的情况,动态血压记录技术就由动脉腔内直接测压法及非侵入性的间接测压法二个方面发展起来。直接动态血压测定法:最早的腔内动态测压法是1966年 Stott 所设计的,以后改进为精致的牛津连续血压记录仪。这一记录系统是把动脉导管在肘前窝上3～5公分处经皮肤插入肱动脉内,导管通向压力传感器而将压力连续地记录在牛津血压记录仪上,同时记录心电图。导管内含有肝素的生理盐水是由自动灌注泵加以灌注,以防止血块形成,每12小时更换一次。磁带记录分析仪提供了每搏实时资料、图形显示,且具有高
Outpatient blood pressure in many cases is inconsistent with the daily blood pressure at home or at home, and the blood pressure measured at the clinic is generally high. In order to study the status of blood pressure in the active state, ambulatory blood pressure recording technique was developed from the direct intra-arterial manometry and noninvasive indirect manometry. Direct ambulatory blood pressure measurement: The earliest dynamic intraluminal manometry was designed by Stott in 1966 and later refined into an elaborate Oxford continuous blood pressure recorder. This system of recording transcutaneously inserts the arterial catheter into the brachial artery at a distance of 3 to 5 cm anterior to the elbow. The catheter leads to a pressure transducer and the pressure is continuously recorded on the Oxford Blood Pressure Recorder, while the electrocardiogram is recorded. The catheter containing heparin saline perfusion by automatic perfusion pump to prevent the formation of blood clots, every 12 hours to replace. Tape recorder analyzer provides real-time stroke, graphical display, and high