Omboni S, Parati G, Groppelli A, Ulian L, Mancia G
Istituto Scientifico Ospedale S. Luca, Centro Auxologico Italiano, Milan, Italy.
J Appl Physiol (1985). 1997 Feb;82(2):698-703. doi: 10.1152/jappl.1997.82.2.698.
The AM-5600 is a new device that simultaneously monitors electrocardiogram (ECG) and noninvasive blood pressure (BP) over a 24-h period. BP readings (Korotkoff sounds and cuff air pressure) are stored into the recorder, allowing the removal of BP artifacts after a visual check. In 12 subjects with essential hypertension, we compared BP values simultaneously provided by the AM-5600 and intra-arterial recordings. At rest, noninvasive systolic BP (SBP) values were lower (5.4 +/- 4.9 mmHg) and diastolic BP (DBP) values were higher (7.3 +/- 7.3 mmHg) than were intra-arterial values. In ambulatory conditions (9 subjects), between-method discrepancies were +0.8 +/- 6.1 and +12.2 +/- 7.4 mmHg for 24-h SBP and DBP, respectively. AM-5600 underestimated 24-h intra-arterial SBP and DBP SD, but it accurately tracked intra-arterial SBP and DBP changes. Editing removed 22.1% of total readings, slightly reducing between-method discrepancies. Thus the AM-5600 provides an accurate average estimate of resting and ambulatory SBP and, for DBP, a less accurate estimate that is slightly improved by editing. The AM-5600 allows accurate description of SBP and DBP profiles and thus may be suitable to describe the abrupt BP changes accompanying a number of clinical events.
AM - 5600是一种新型设备，可在24小时内同时监测心电图（ECG）和无创血压（BP）。血压读数（柯氏音和袖带气压）会存储到记录仪中，以便在目视检查后去除血压伪影。在12名原发性高血压患者中，我们比较了AM - 5600与动脉内记录同时提供的血压值。静息时，无创收缩压（SBP）值低于动脉内值（5.4±4.9 mmHg），舒张压（DBP）值高于动脉内值（7.3±7.3 mmHg）。在动态条件下（9名受试者），24小时SBP和DBP的方法间差异分别为+0.8±6.1和+12.2±7.4 mmHg。AM - 5600低估了24小时动脉内SBP和DBP的标准差，但它能准确跟踪动脉内SBP和DBP的变化。编辑去除了22.1%的总读数，略微减少了方法间的差异。因此，AM - 5600能准确提供静息和动态SBP的平均估计值，对于DBP，其估计值不太准确，但编辑后略有改善。AM - 5600能够准确描述SBP和DBP的变化情况，因此可能适用于描述伴随一些临床事件出现的血压突然变化。
