Hour-to-hour and week-to-week variability and reproducibility of wave reflection indices derived by aortic pulse wave analysis: implications for studies with repeated measurements

2007 ◽  
Vol 25 (8) ◽  
pp. 1678-1686 ◽  
Author(s):  
Theodore G Papaioannou ◽  
Emmanouil N Karatzis ◽  
Kalliopi N Karatzi ◽  
Elias J Gialafos ◽  
Athanassios D Protogerou ◽  
...  
Keyword(s):  
Wave Reflection ◽  
Pulse Wave ◽  
Pulse Wave Analysis ◽  
Repeated Measurements ◽  
Wave Analysis

Repeatability of SphygmoCor pulse wave analysis in assessing arterial wave reflection in pregnancy using applanation tonometry

2014 ◽  
Vol 33 (3) ◽  
pp. 322-332 ◽  
Author(s):  
Michael A. Crilly ◽  
Kirsty M. Orme ◽  
Joan Henderson ◽  
Angela J. Allan ◽  
Sohinee Bhattacharya
Keyword(s):  
Wave Reflection ◽  
Pulse Wave ◽  
Applanation Tonometry ◽  
Pulse Wave Analysis ◽  
Wave Analysis ◽  
Arterial Wave Reflection ◽  
In Pregnancy

Protective effects of ascorbic acid on arterial hemodynamics during acute hyperglycemia

2004 ◽  
Vol 287 (3) ◽  
pp. H1262-H1268 ◽  
Author(s):  
Brian A. Mullan ◽  
Ciaran N. Ennis ◽  
Howard J. P. Fee ◽  
Ian S. Young ◽  
David R. McCance
Keyword(s):  
Blood Pressure ◽  
Ascorbic Acid ◽  
Wave Reflection ◽  
Pulse Wave ◽  
Left Ventricular ◽  
Pulse Wave Analysis ◽  
Wave Analysis ◽  
Acute Hyperglycemia ◽  
Pulse Wave Reflection ◽  
Arterial Hemodynamics

Mortality increases when acute coronary syndromes are complicated by stress-induced hyperglycemia. Early pulse wave reflection can augment central aortic systolic blood pressure and increase left ventricular strain. Altered pulse wave reflection may contribute to the increase in cardiac risk during acute hyperglycemia. Chronic ascorbic acid (AA) supplementation has recently been shown to reduce pulse wave reflection in diabetes. We investigated the in vivo effects of acute hyperglycemia, with and without AA pretreatment, on pulse wave reflection and arterial hemodynamics. Healthy male volunteers were studied. Peripheral blood pressure (BP) was measured at the brachial artery, and the SphygmoCor pulse wave analysis system was used to derive central BP, the aortic augmentation index (AIx; measure of systemic arterial stiffness), and the time to pulse wave refection ( Tr; measure of aortic distensibility) from noninvasively obtained radial artery pulse pressure (PP) waveforms. Hemodynamics were recorded at baseline and then every 30 min during a 120-min systemic hyperglycemic clamp (14 mmol/l). The subjects, studied on two separate occasions, were randomized in a double-blind, crossover manner to placebo or 2 g intravenous AA before the initiation of hyperglycemia. During hyperglycemia, AIx increased and Tr decreased. Hyperglycemia did not change peripheral PP but did magnify central aortic PP and diminished the normal physiological amplification of PP from the aorta to the periphery. Pulse wave reflection, as assessed from peripheral pulse wave analysis, is enhanced during acute hyperglycemia. Pretreatment with AA prevented the hyperglycemia-induced hemodynamic changes. By protecting hemodynamics during acute hyperglycemia, AA may have therapeutic use.

scholarly journals Limited value of pulse wave analysis in assessing arterial wave reflection and stiffness in the pulmonary artery

2021 ◽  
Vol 9 (18) ◽  
Author(s):  
Junjing Su ◽  
Ulf Simonsen ◽  
Soren Mellemkjaer ◽  
Luke S. Howard ◽  
Charlotte Manisty ◽  
...  
Keyword(s):  
Pulmonary Artery ◽  
Wave Reflection ◽  
Pulse Wave ◽  
Pulse Wave Analysis ◽  
Wave Analysis ◽  
Arterial Wave Reflection

scholarly journals Pulse wave analysis and prevalent cardiovascular disease in type 1 diabetes

2010 ◽  
Vol 213 (2) ◽  
pp. 469-474 ◽  
Author(s):  
Catherine T. Prince ◽  
Aaron M. Secrest ◽  
Rachel H. Mackey ◽  
Vincent C. Arena ◽  
Lawrence A. Kingsley ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Type 1 Diabetes ◽  
Pulse Wave ◽  
Pulse Wave Analysis ◽  
Wave Analysis

Pulse wave analysis of the aortic pressure waveform in patients with vasovagal syncope

2014 ◽  
Vol 31 (1) ◽  
pp. 74-79 ◽  
Author(s):  
Simon Pecha ◽  
Samer Hakmi ◽  
Iris Wilke ◽  
Yalin Yildirim ◽  
Boris Hoffmann ◽  
...  
Keyword(s):  
Pulse Wave ◽  
Vasovagal Syncope ◽  
Aortic Pressure ◽  
Pulse Wave Analysis ◽  
Pressure Waveform ◽  
Wave Analysis

Photoplethysmography beyond perfusion and oxygenation monitoring: pulse wave analysis for hepatic graft monitoring

2014 ◽  
Author(s):  
Tony J. Akl ◽  
Mark A. Wilson ◽  
M. Nance Ericson ◽  
Gerard L. Coté
Keyword(s):  
Pulse Wave ◽  
Pulse Wave Analysis ◽  
Wave Analysis ◽  
Oxygenation Monitoring

Abstract P116: VARIATION IN MEAN ARTERIAL PRESSURE (MAP) AND ITS HEMODYNAMIC COMPONENTS DURING 24-HOUR AMBULATORY PULSE WAVE ANALYSIS: IMPACT OF AGE, RACE, GENDER AND BODY SIZE

Hypertension ◽  
2021 ◽  
Vol 78 (Suppl_1) ◽  
Author(s):  
Sagar Nagpal ◽  
Debduti Mukhopadhyay ◽  
Peter Osmond ◽  
Joseph E Schwartz ◽  
Joseph L Izzo
Keyword(s):  
Heart Rate ◽  
Pulse Wave ◽  
Beta Blockers ◽  
Demographic Characteristics ◽  
Pulse Wave Analysis ◽  
Clinical Implications ◽  
Wave Analysis ◽  
Contributing Factors ◽  
Clinical Associations ◽  
The Impact

BP is highly variable within and between individuals but the impact of variation in underlying hemodynamic components is unknown. We tested the feasibility and clinical associations of quantitated variances in MAP and its hemodynamic components [heart rate (HR), stroke volume (SV) and total vascular resistance (TVR)] obtained by 24-hr ambulatory pulse wave analysis (PWA, Mobil-O-Graph, IEM, Stolzberg, DE). BP and PWA were measured every 20 min for 24 hrs. Indexed to body surface area, MAP = HR*[SV index (SVI)]*[TVR index (TVRI)]; ln(MAP) = ln(HR) + ln(SVI) + ln(TVRI); and total MAP variability = var [ln(MAP)] = covariance (cov)[ln(HR), ln(MAP)] + cov[ln(SVI), ln(MAP)] + cov[ln(TVRI), ln(MAP)]. Relative contributions to var[ln(MAP)] for each hemodynamic component (as %) were calculated and associations with demographic characteristics were analyzed by correlations and t-tests. We studied 152 people (49% women, 23% black); mean(SD): # readings 57(11), age 59(16) yr, BMI 29.9(6.5) kg/m 2 , systolic BP 135(18) and MAP 106(14) mmHg. Mean(SD) 24-hr values were: ln(MAP) 4.64 (0.13), ln(HR) 4.20 (0.15), ln(SVI) -3.32 (0.15), and ln(TVRI) 3.75 (0.18). Relative contributions of hemodynamic components to total 24-hr ln(MAP) variation were: TVRI 54(36)%, HR 33(38)%, and SVI 13(40)%. The large SDs of these relative contributions led to analysis of potential contributing factors: TVRI contribution was correlated with 24-hr mean MAP (r=0.24, p=0.003) and was higher (>54%) in males (p=0.03) and blacks (p=0.04); HR contribution was inversely related to MAP (r=-0.26, p=0.001), age (r=-0.29, p=0.0003) and BMI (r=-0.173 p=0.05) and was lower (<33%) in blacks (p=0.008); SVI contribution was correlated with age (r=0.31, p<0.0001) and BMI (r=0.23, p=0.005) and was higher (>13%) in women (p=0.03). We conclude that 24-hr ambulatory PWA can identify components of MAP variation within individuals and their associations with demographic factors. The relative contributions of hemodynamic components (HR, SV, TVR) to 24-hr variability in ln(MAP) varies systematically with 24-hr mean MAP, age, race, gender, and BMI. Theoretical clinical implications may include therapeutic adjustments for extremes of variation in HR (beta-blockers), TVR (vasodilators) or SV (diuretics).

Pulse Wave Analysis to Estimate Cardiac Output: Comment

2021 ◽  
Author(s):  
Scott Hughey ◽  
Jacob Cole ◽  
Gregory Booth
Keyword(s):  
Cardiac Output ◽  
Pulse Wave ◽  
Pulse Wave Analysis ◽  
Wave Analysis
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