Abstract 2742: The Comparison Of Direct Measurement Of Central Blood Pressure And Noninvasive Evaluation By Radial Artery Tonometry.

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Kenji Takazawa ◽  
hiroshi kobayashi ◽  
mineko kino ◽  
akira aizawa
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Guide Wire ◽  
Blood Pressure Measurement ◽  
Regression Line ◽  
Aortic Pressure ◽  
Applanation Tonometry ◽  
Central Blood Pressure ◽  
Medical Systems ◽  
Significant Difference

Background and objectives: New devices including radial applanation tonometer have been developed for central blood pressure measurement. The devices can noninvasively calculate the central blood pressure. To investigate the accuracy of estimated central blood pressure, this study demonstrates the comparison of catheter based central blood pressure and radial applatnation tonometer based central blood pressure. Materials and Methods: Seventy two patients (64 ± 10 years old) underwent cardiac catheterization were recruited for this study. Ascending aortic pressure was measured using a pressure guide wire (RADI Medical Systems), and recorded on a laptop personal computer through a SEIREG polygraph (Siemens). Radial arterial pulse waves were simultaneously measured noninvasively using applanation tonometry technique by HEM-9000AI (Omron Healthcare Co.,Ltd.) and SphygmoCor (AtCor Medical Pty Ltd.). The measurements were performed before and after administration of vasodilator (nicorandil or glycerol trinitrate) or antihypertensive (nicardipine hydrochloride) drugs. The central blood pressure calculated by HEM-9000AI (cSBP) and SphygmoCor (aSBP Sphy) was compared respectively with that by catheter (aSBP). Results: cSBP and aSBP Sphy indicated significant correlation with aSBP (r=0.94, 0.93, respectively, p=0.001). The regression line slope of cSBP to aSBP was 0.92 and that of aSBP Sphy to aSBP was 0.76. A significant difference was observed between aSBP and aSBP Sphy, but was not observed between aSBP and cSBP. Bland-Altman test showed that the difference of cSBP to aSBP was - 0.4 ± 9.6 mmHg and that of aSBP Sphy to aSBP was -9.0 ± 10.3 mmHg. It shows significant difference between cSBP to aSBP error and aSBP Sphy to aSBP error (p<0.05). Conclusion: The central blood pressure measured by HEM-9000AI is very close to that by catheter. These findings indicate that noninvasive central blood pressure measurement by radial applanation tonometry is accurate enough for clinical applications.

scholarly journals Blood pressure measurement and the prevalence of postprandial hypotension

2019 ◽  
Vol 42 (1) ◽  
pp. E39-E46 ◽  
Author(s):  
Kenneth M. Madden ◽  
Boris Feldman ◽  
Graydon S. Meneilly
Keyword(s):  
Blood Pressure ◽  
Older Adults ◽  
Pressure Measurement ◽  
Past History ◽  
Blood Pressure Measurement ◽  
Geriatric Medicine ◽  
Medical Systems ◽  
Meal Test ◽  
Postprandial Hypotension ◽  
Significant Difference

Background: Postprandial hypotension (PPH) is a serious condition that has been shown to be an independent risk factor for falls, fractures and death. Purpose: The prevalence of this problem in older adults with a past history of falls has shown a wide variability in the literature; the present study seeks to examine how the frequency with which blood pressure is measured impacts the prevalence and severity of PPH. Methods: Older adults were recruited sequentially from a geriatric medicine falls clinic for meal testing (n=95). All subjects (mean age 77.5±0.7 years, 61±5% female) were fasting prior to each 90 min standardized meal test. A Finometer (Finapres Medical Systems BV) was used to monitor blood pressure. Beat-by-beat systolic (SBP) measures were averaged for 0.5, 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45 and 90 min respectively during the meal test. Results: Using the original diagnostic method of checking mean blood pressure every 10 min resulted in a PPH prevalence of 42.1±5.1% in our population, with an overall range from 81.1±4.0% to 11.6±3.3% depending on the frequency of calculating SBP. The maximal observed postprandial decrease in SBP also showed a significant difference with blood pressure measurement frequency (p

Accuracy of the London School of Hygiene and Remler M2000 sphygmomanometers

1981 ◽  
Vol 61 (s7) ◽  
pp. 399s-401s ◽  
Author(s):  
D. J. Fitzgerald ◽  
W. G. O'Callaghan ◽  
K. O'Malley ◽  
E. T. O'Brien
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Calibration Error ◽  
London School ◽  
Lower Blood ◽  
Significant Difference ◽  
Blood Pressures ◽  
The Mean ◽  
Selection Of

1. The accuracy of the Remler M2000, a semiautomatic portable blood pressure recorder, was assessed with the London School of Hygiene (LSH) and Hawkesley random-zero sphygmomanometers used as reference standards. 2. The Remler gave higher recordings than the LSH sphygmomanometer, the mean systolic and diastolic differences being 5.9 mmHg (P &lt; 0.001) and 4.7 mmHg (P &lt; 0.001) respectively. No significant difference was demonstrated between paired Remler and Hawkesley recordings. 3. When simultaneous paired LSH and Hawkesley sphygmomanometer recordings were compared, the LSH gave lower blood pressures: 7.1 mmHg (P &lt; 0.001) for systolic and 3.6 mmHg (P &lt; 0.001) for diastolic recordings. 4. The LSH sphygmomanometer underestimates blood pressure, partly due to a calibration error but also because the selection of end points for this device differs from other methods of blood pressure measurement.

scholarly journals Knowledge of accurate blood pressure measurement procedures in chiropractic students

2013 ◽  
Vol 27 (2) ◽  
pp. 152-157 ◽  
Author(s):  
Angela M. Crosley ◽  
James R. La Rose
Keyword(s):  
Blood Pressure ◽  
Health Care ◽  
Health Care Providers ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Clinical Skill ◽  
Care Providers ◽  
Item Score ◽  
Significant Difference ◽  
Chiropractic Students

Objective Blood pressure measurement is a basic clinical procedure. However, studies have shown that many errors are made when health care providers acquire blood pressure readings. Our study assessed knowledge of blood pressure measurement procedures in chiropractic students. Methods This was an observational, descriptive study. A questionnaire based on one created by the American Heart Association was given to 1st, 2nd, 3rd, and final year students (n = 186). A one way ANOVA was used to analyze the data. Results Of the students 80% were confident that their knowledge of this clinical skill was adequate or better. However, the overall score on the knowledge test of blood pressure–taking skills was 52% (range, 24%–88%). The only significant difference in the mean scores was between the 1st and 2nd year students compared to the 3rd and 4th year students (p &lt; .005). Of the 16 questions given, the following mean scores were: 1st year 10.45, 2nd year 9.75, 3rd year 7.93, and 4th year 8.33. Of the 16 areas tested, 10 were of major concern (test item score &lt;70%), showing the need for frequent retraining of chiropractic students. Conclusion Consistent with studies in other health care disciplines, our research found the knowledge of blood pressure skills to be deficient in our sample. There is a need for subsequent training in our teaching program.

scholarly journals P63 Accuracy (Validation) of Central Blood Pressure Measurement Using the Sphygmocor Xcel-cuff Device

2020 ◽  
Vol 25 (Supplement 1) ◽  
pp. S105
Author(s):  
Martin Schultz ◽  
Dean Picone ◽  
Matthew Armstrong ◽  
Andrew Black ◽  
Nathan Dwyer ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Central Blood Pressure ◽  
Accuracy Validation

Central Blood Pressure Measurement

2016 ◽  
pp. 49-58
Author(s):  
Dimitrios A. Vrachatis ◽  
Theodore G. Papaioannou ◽  
Athanasios D. Protogerou
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Blood Pressure Measurement ◽  
Central Blood Pressure

P124 CENTRAL BLOOD PRESSURE MEASUREMENT: PARADIGM SHIFT

2018 ◽  
Vol 24 (C) ◽  
pp. 115
Author(s):  
Gilberto Campos Guimarães Filho ◽  
Weimar Kunz Sebba Barroso Sousa
Keyword(s):  
Blood Pressure ◽  
Pressure Measurement ◽  
Paradigm Shift ◽  
Blood Pressure Measurement ◽  
Central Blood Pressure
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