Blood pressure monitoring
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Blood pressure monitoring · Feb 2014
Clinical TrialValidation of a conical cuff on the forearm for estimating radial artery blood pressure.
There has been a growing need for and interest in measuring noninvasive blood pressure (NIBP) in obese patients. In many situations, available rectangular upper arm blood pressure cuffs do not fit properly, closing in a crisscross manner or overlapping the elbow. To address this issue, GE Healthcare has designed a conically shaped cuff for use on the forearm to estimate radial arterial blood pressure. This study evaluated using this forearm cuff with an oscillometric NIBP algorithm compared with an invasive radial arterial blood pressure reference. ⋯ The statistical results show that oscillometric NIBP measurements taken with the conically shaped cuff placed on the forearm give an accurate estimation of radial arterial blood pressure.
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Blood pressure monitoring · Oct 2013
Effect of mechanical behaviour of the brachial artery on blood pressure measurement during both cuff inflation and cuff deflation.
The aim of this study was to investigate the effect of different mechanical behaviour of the brachial artery on blood pressure (BP) measurements during cuff inflation and deflation. ⋯ We have shown that the mechanical behaviour of the brachial artery during BP measurement differs between cuff deflation and cuff inflation.
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Blood pressure monitoring · Jun 2013
Clinical TrialValidation of the Tensoval Duo Control II blood pressure monitor for clinic use and self-measurement according to the British Hypertension Society protocol and the European Society of Hypertension International Protocol Revision 2010.
The Tensoval Duo Control II is an automated upper arm device that uses a combination of oscillometric and auscultatory technology to determine blood pressure noninvasively. The accuracy of this device was assessed according to the British Hypertension Society (BHS) protocol and the European Society of Hypertension International Protocol revision 2010 (ESH-IP2) in an adult population. ⋯ The Tensoval Duo Control II device is recommended for clinical and home use according to both the BHS and the ESH-IP2 standard.
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Blood pressure monitoring · Apr 2013
Clinical TrialAmbulatory blood pressure monitoring in acute stroke: pathophysiology of the time rate of blood pressure variation and association with the 1-year outcome.
Time rate of blood pressure (BP) variation is a measure of the speed of BP fluctuations derived from a computerized analysis of ambulatory BP monitoring. The aim of this study was to identify pathophysiological differences in the time rate of BP variation between stroke subtypes, on the basis of the Trial of Org 10172 in Acute Stroke Treatment criteria, in the acute phase and to examine the impact of time rate of BP variation on outcome at 1 year after stroke. ⋯ Time rate of BP variation shows significant differences between stroke subtypes in the acute phase of the event, and it is associated with outcome at 1 year. Lowering the time rate of BP variation, in the acute phase, might lead to better outcomes in patients who have had a cerebrovascular incident.
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Blood pressure monitoring · Oct 2012
Invasive blood pressure monitoring systems in the ICU: influence of the blood-conserving device on the dynamic response characteristics and agreement with noninvasive measurements.
Invasive blood pressure monitoring is the most reliable method in critically ill patients. Noninvasive oscillometric pressure monitoring is also widely used in the ICU, and discrepancies between the methods are common. Inclusion of a blood-conserving device may influence the fidelity of the system and reliability of the invasive pressure values. We examined the dynamic response characteristics of the monitoring systems with and without the blood-conserving device, and assessed agreement between invasive and noninvasive blood pressures. ⋯ Inclusion of a blood-conserving device in the existing monitoring circuit may affect its dynamic response characteristics. Discrepancies between invasive and noninvasive pressures are common, with systolic pressure showing more variability than the mean arterial pressure. The low Fn of the invasive monitoring system could be a contributing factor to the discrepancy between two methods.