Measurement of Blood Pressure
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Measurement of Blood Pressure - Summary
• Measurement of Blood Pressure • Dec 22 07
Methods of blood pressure assessment have come a long way from the days when Hales (1773) developed the invasive glass tube gauges for measuring…
Measurement of Hemodynamic Functioning
• Measurement of Blood Pressure • • Isolated Clinic Normotension • Dec 22 07
As outlined in Figure 1.1, blood pressure is jointly determined by cardiac output and total peripheral resistance. To answer several…
Impedance Cardiography - Measurement of Hemodynamic Functioning
• Measurement of Blood Pressure • Dec 22 07
Impedance cardiography is a noninvasive assessment strategy that can be used to estimate stroke volume and cardiac output (Mohapatru, 1981). Basically, the process involves…
Etiology of Isolated Clinic Normotension
• Measurement of Blood Pressure • • Isolated Clinic Normotension • Dec 22 07
Due to the relative recency of this body of literature, not much is known about the cause of isolated clinic normotension. On the one…
Isolated Clinic Normotension
• Measurement of Blood Pressure • • Isolated Clinic Normotension • Dec 22 07
A few investigators have now observed a condition in which normal blood pressures in the clinic are accompanied by elevated measures during daily life,…
Isolated Clinic Normotension and Target Organ Pathology
• Measurement of Blood Pressure • • Isolated Clinic Normotension • Dec 22 07
Assuming that patients with isolated clinic normotension exhibit elevated blood pressures during most of their daily life (except when in the clinic of course!),…
Isolated Clinic Hypertension and Target Organ Pathology
• Measurement of Blood Pressure • • Isolated Clinic Hypertension • Dec 22 07
Although there exists some disagreement regarding the relative cardiac risk and subsequent treatment recommendations for individuals with confirmed isolated clinic hypertension, it has been…
Detecting Isolated Clinic Hypertension
• Measurement of Blood Pressure • • Isolated Clinic Hypertension • Dec 22 07
Because patients with isolated clinic hypertension have presumably less risk for cardiovascular complications than essential hypertensive patients, there is a question about whether treatment…
Isolated Clinic Hypertension (White Coat Hypertension)
• Measurement of Blood Pressure • • Isolated Clinic Hypertension • Dec 22 07
Isolated clinic hypertension presents a significant problem for physicians who rely on obtaining accurate clinic measures of blood pressure to render appropriate decisions regarding…
Isolated Clinic Hypertension as a Conditioned Response
• Measurement of Blood Pressure • • Isolated Clinic Hypertension • Dec 22 07
One of the most promising hypotheses regarding the etiology of isolated clinic hypertension is that the observed cuff reaction among isolated clinic hypertensive patients…
Nocturnal Dipping of Blood Pressure
• Measurement of Blood Pressure • • Methods of Blood Pressure Measurement • Dec 22 07
One of the most obvious observations among early studies that employed ambulatory measures of blood pressure recording was the fact that blood pressure tended…
Discrepant Clinic and Home/Ambulatory Blood Pressures
• Measurement of Blood Pressure • • Blood Pressure Monitoring during Daily Life • Dec 22 07
For the most part, measures of blood pressure obtained in the clinic and those obtained out of the clinic, either from home or ambulatory…
Accuracy of Ambulatory Blood Pressure Monitoring
• Measurement of Blood Pressure • • Blood Pressure Monitoring during Daily Life • Dec 22 07
Although ambulatory measurement devices compare favorably with auscultatory methods of blood pressure determination in the clinic, there are substantial differences in average blood pressures…
Prognostic Value of Ambulatory Blood Pressures
• Measurement of Blood Pressure • • Blood Pressure Monitoring during Daily Life • Dec 22 07
With the advent of ambulatory blood pressure recording capability, many new empirical questions could be considered regarding the enhanced prediction of risk for cardiovascular…
Prognostic Value of Home Blood Pressure Monitoring
• Measurement of Blood Pressure • • Blood Pressure Monitoring during Daily Life • Dec 22 07
Although it has been well established that elevated clinic-derived measures of blood pressure were associated with both target organ complications (like left ventricular hypertrophy)…
Ambulatory Blood Pressure Monitoring
• Measurement of Blood Pressure • • Blood Pressure Monitoring during Daily Life • Dec 22 07
There are now over a dozen ambulatory blood pressure monitoring devices that meet the standards established by the Association for the Advancement of Medical…
Comparisons of Home and Clinic Blood Pressures
• Measurement of Blood Pressure • • Blood Pressure Monitoring during Daily Life • Dec 22 07
Ayman and Goldshine first reported comparisons between blood pressures measured in the clinic and at home in 1940. In this report, blood pressures of…
Blood Pressure Monitoring during Daily Life
• Measurement of Blood Pressure • • Blood Pressure Monitoring during Daily Life • Dec 22 07
Two general strategies have been employed to obtain measures of blood pressure during daily life: home monitoring and ambulatory monitoring. Home monitoring typically involves…
Clinic Measurement of Blood Pressure
• Measurement of Blood Pressure • • Methods of Blood Pressure Measurement • Dec 22 07
Although significant technological advances have permitted the development of several valid ways to measure blood pressure, most clinic determinations of blood pressure are still…
Continuous Blood Pressure Monitoring Methods
• Measurement of Blood Pressure • • Methods of Blood Pressure Measurement • Dec 22 07
Unfortunately, both auscultatory and oscillometric methods of blood pressure assessment are intermittent measures in that a single blood pressure determination can take almost an…
Vascular Unloading Method - Continuous Blood Pressure Monitoring Methods
• Measurement of Blood Pressure • • Methods of Blood Pressure Measurement • Dec 22 07
The vascular unloading method, initially described by Penaz (1973), involves obtaining estimates of blood pressure from a small pressurized cuff positioned over a finger…
Oscillometric Method - Methods of Blood Pressure Measurement
• Measurement of Blood Pressure • • Methods of Blood Pressure Measurement • Dec 22 07
A second type of noninvasive blood pressure measurement strategy, the oscillometric method, also employs an occluding cuff. However, in contrast to the auscultatory method,…
Auscultatory Method - Methods of Blood Pressure Measurement
• Measurement of Blood Pressure • • Methods of Blood Pressure Measurement • Dec 22 07
Due to the subjectivity associated with pulse palpation and general lack of correspondence between estimates obtained from pulse palpation and intra-arterial measures of blood…
Methods of Blood Pressure Measurement
• Measurement of Blood Pressure • • Methods of Blood Pressure Measurement • Dec 22 07
Direct Intra-arterial Recording
The first method established for measuring blood pressure, intra-arterial recording, was discovered in 1733 when Hales inserted a thin…
Measurement of Blood Pressure
• Measurement of Blood Pressure • Dec 22 07
Diagnosis and monitoring of treatment of essential hypertension require the accurate repeated measurement of blood pressure. Although on the surface it may seem that…
