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Arterial Assessment Validation Publications

 


Baulmann, J. et al.
“A new oscillometric method for assessment of arterial stiffness: comparison with tonometric and piezoelectronic methods”
J Hypertension 2008, 26:523-528

Jatoi, N.A., et al.
“Assessment of arterial stiffness in hypertension: comparison of oscillometric (Arteriograph), piezoelectronic (Complior) and tonometric (SphygmoCor) techniques”
H Hypertension 2009, 27:2186-2191

Boutouyrie P, Revera M and Parati G.
“Obtaining arterial stiffness indices from simple arm cuff measurements: the holy grail?”
J Hypertension 2009; 27: 2159-2161

Rajzer MW, Wojciechowska W, Klocek M, Palka I, Brzozowska-Kiszka M, Kawecka-Jaszcz K.
“Comparison of aortic pulse wave velocity measured by three techniques: Coplior, SphygmoCor and Arteriograph.”
J Hypertension 2008; 26:2001-7

Horvath, G.I. et al.
“Invasive validation of a new oscillometric device (Arteriograph) for measuring augmentation index, central blood pressure and aortic pulse wave velocity.:
J Hypertension 2010, 28:2068-2075

Parati G, Buyzere de M
“Evaluating aortic stiffness through an arm cuff oscillometric device: is validation against invasive measurements enough?”
Journal of Hypertension 2010, 28:2003-2006

 

 

 

 

Assessment of arterial stiffness in hypertension: comparison of oscillometric (Arteriograph), piezoelectronic (Complior) and tonometric (SphygmoCor) techniques.

 

Noor A Jatoi, Azra Mahmud, Kathleen Bennett, John Feely

 

Department of Pharmacology and Therapeutics, Trinity College Centre for Health Sciences and Hypertension Clinic, St. James's Hospital, Dublin, Ireland.

 

Journal of hypertension (impact factor: 4.02). 10/2009; 27(11):2186-91. DOI:10.1097/HJH.0b013e32833057e8

 

Source: PubMed

 

ABSTRACT Arterial stiffness, measured as aortic pulse wave velocity (PWV), and wave reflection, measured as augmentation index (AIx), are independent predictors for total and cardiovascular morbidity and mortality. The aim of this study was to compare a new device

 

 

 

 

Comparison of aortic and carotid arterial stiffness parameters in patients with verified coronary artery disease.

 

Gaszner B, Lenkey Z, Illyés M, Sárszegi Z, Horváth IG, Magyari B, Molnár F, Kónyi A, Cziráki A.

 

Source

 

Heart Institute, Faculty of Medicine, University of Pécs, Hungary.

 

Abstract

 

BACKGROUND:

 

Arterial stiffness parameters are commonly used to determine the development of atherosclerotic disease. The independent predictive value of aortic stiffness has been demonstrated for coronary events.

 

HYPOTHESIS:

 

The aim of our study was to compare regional and local arterial functional parameters measured by 2 different noninvasive methods in patients with verified coronary artery disease (CAD). We also compared and contrasted these stiffness parameters to the coronary SYNTAX score in patients who had undergone coronary angiography.

 

METHODS:

 

In this study, 125 CAD patients were involved, and similar noninvasive measurements were performed on 125 healthy subjects. The regional velocity of the aortic pulse wave (PWVao) was measured by a novel oscillometric device, and the common carotid artery was studied by a Doppler echo-tracking system to determine the local carotid pulse wave velocity (PWVcar). The augmentation index (AIx), which varies proportionately with the resistance of the small arteries, was recorded simultaneously.

 

RESULTS:

 

In the CAD group, the PWVao and aortic augmentation index (Alxao) values increased significantly (10.1 ± 2.3 m/sec and 34.2% ± 14.6%) compared to the control group (9.6 ± 1.5 m/sec and 30.9% ± 12%; P < 0.05). We observed similar significant increases in the local stiffness parameters (PWVcar and carotid augmentation index [Alxcar]) in patients with verified CAD. Further, we found a strong correlation for PWV and AIx values that were measured with the Arteriograph and those obtained using the echo-tracking method (r = 0.57, P < 0.001 for PWV; and r = 0.65, P < 0.001 for AIx values).

 

CONCLUSIONS:

 

Our results indicate that local and regional arterial stiffness parameters provide similar information on impaired arterial stiffening in patients with verified CAD.

 

© 2011 Wiley Periodicals, Inc.

 

 

 

 

Renal Denervation Improves Blood Pressure And Arterial Stiffness

Published: August 27, 2012.
By European Society of Cardiology
http://www.escardio.org http://www.sciencenewsline.com/images/external_link.gif

 

Munich, Germany – August 27 2012: Renal denervation improves blood pressure and arterial stiffness in patients with therapy resistant hypertension, according to research presented at ESC Congress 2012 by Mr Klaas Franzen from the University Hospital of Schleswig-Holstein. The findings suggest that renal denervation regenerates blood vessels and could reduce cardiovascular events.

 

Related Content

 

 

 

Malignant arterial hypertension was historically treated with surgical thoracolumbar splanchnicectomy, a type of sympathectomy treatment that was introduced in 1938. "A significant reduction in blood pressure response was observed in at least half of the patients who underwent splanchnicectomy," said Mr Franzen. "But the treatment led to severe adverse events such as orthostatic hypotension, anhidrosis and intestinal disturbances. After the discovery of effective antihypertensive drugs, splanchnicectomy became neglected and disregarded over time."

 

In 2009 the concept of sympathectomy was reintroduced with intravasal catheter-based percutaneous renal sympathetic denervation (RDN) used in patients suffering from resistant arterial hypertension. Recent publications have shown that RDN significantly lowers systolic and diastolic peripheral brachial blood pressure by 32/12 mmHg after 6 months.

 

Mr Franzen said: "RDN with radiofrequency energy has several important advantages over surgical splanchnicectomy: it is a minimally invasive procedure without significant systematic side effects, it is well tolerated, and recovery times are short."

 

Arterial hypertension can irrevocably harm blood vessels in the short and long term, subsequently leading to increased aortic/arterial stiffness and arteriosclerosis. "Since central aortic pressures and arterial stiffness are much better predictors for future cardiovascular events than peripheral pressures we focused the present study on the effects of RDN on central hemodynamics and arterial stiffness," said Mr Franzen.

 

The researchers studied 21 patients with therapy resistant hypertension (61.9% men; mean age 64 years; 5.0±1.3 antihypertensive drugs) and 6 controls (83.3% men; mean age 57 years; 4.3±2.3 antihypertensive drugs). The inclusion criteria were: (i) use of >3 antihypertensive drugs, (ii) peripheral blood pressure at baseline ≥150 mmHg, and (iii) exclusion of secondary hypertension and anatomical abnormalities of the renal arteries.

 

RDN was performed with an RDN radiofrequency ablation catheter system (1). Central hemodynamics and arterial stiffness, i.e. pulse wave velocity (PWV), were recorded with an Arteriograph device (2). Measurements were performed at baseline, and 3 and 6 months after the intervention.

 

RDN led to an improvement in all parameters compared to baseline. Peripheral systolic blood pressure improved by 7.6% (145 mmHg versus 156 mmHg, p<0.05) after 3 months and by 5.4% (148 mmHg versus 156 mmHg, p<0.05) after 6 months. Central systolic blood pressure improved by 9.5% (147 mmHg versus 161 mmHg, p<0.01) after 3 months and by 6.6% (151 mmHg versus 161 mmHg, p<0.05) after 6 months. Most importantly, PWV improved significantly, both at 3 months (9.4±1.2 m/s versus 10.9±1.8 m/s, p<0.01) and 6 months (9.7±1.8 m/s versus 10.9±1.8 m/s, p<0.01). Univariate analysis of variance (f-test) showed that the improvement of PWV was, at least in part, blood pressure independent.

 

In controls no significant changes in blood pressure values or PWV were observed.

 

"Besides peripheral blood pressures, RDN improved central blood pressures and arterial stiffness, i.e. PWV," said Mr Franzen. "According to age adjusted reference values, the improvement of approximately 1m/s PWV observed in our study could be interpreted as a blood vessel rejuvenation of almost 10 years. This suggests that RDN might be a fountain of youth for blood vessels in patients with therapy resistant hypertension."

 

He added: "Further studies are needed to determine whether the benefits of RDN translate into a reduced risk of cardiovascular events."

 

 

 

 

Arteriograph- Comprehensive cardiovascular risk assessment in only 3 minutes! - A medical breakthrough in early diagnostics of atherosclerosis! 

A big problem today is that many individuals with high risk of cardiovascular diseases otherwise have normal values; normal blood pressure, blood lipids and resting-EKG. The catastrophe strikes without any prior warning. The Arteriograph is an evidence based, fast, easy, noninvasive and user independent way of assessing cardiovascular risk. For the first time one have a good chance of finding high risk patient before it is too late.

1.       Screening of early atherosclerosis among ”healthy” individuals. Only the Arteriograph is useful for this. The Arteriograph gives an overall picture of the risk of assessing cardiovascular disease.

2.       Evaluating the effects of treatments (drugs, nutritional supplements and lifestyle changes etc) on the vascular functions among patients with established atherosclerosis (CAD, POST MI, STROKE, PAD)

3.       Is it not enough to check the blood lipids and blood pressure to prevent atherosclerosis and thereby strokes? No, 40-60% of patients with stroke or heart attacks do not have any know abnormal values such as high amount of blood lipids or high blood pressure (Johns Hopkins White Papers, Coronary Heart Disease - 1998, etc). They also have normal blood glucose values, resting-EKG, are non-smokers and have a healthy diet. Up until now it has been impossible to find there individuals.

4.       Todays metods of assessing cardiovascular risk (SCORE, Framingham) all have limits. They do not take into account important factors such as lack of physical activity, overweight, psychological factors or previous cardiovascular circumstances. (Simon, A. and Levenson, J.: May subclinical arterial disease helps to better detect and treat high-risk asymptomatic individuals? J Hypertension 2005, 23: 1939-1945)

5.       In most cases, lowering the blood pressure is not enough to avoid early death. Individuals who can lower both their arterial stiffness and blood pressure have a much greater chance of a longer life.Circulation 2001;103:987

6.       The Arteriograph is mobile and easy to use. The screening is fast, comfortable, harmless and user independent. It takes only a few minutes and can be described as a computerized blood pressure measurement.

7.       Today´s other available methods are hard to use, expensive, and requires an adequate educated staff. In the future, the Arteriograph may replace the regular blood pressure measurement as it is just as easy but gives much more information.

 

 The Arteriograph is intended for DAILY USE at your clinic to measure AIx, PWV and Central blood pressure etc.

 

 Arteriograph- Comprehensive cardiovascular risk assessment in only 3 minutes!

 

 

 

- A medical breakthrough in early diagnostics of atherosclerosis!

 

 

 

A big problem today is that many individuals with high risk of cardiovascular diseases otherwise have normal values; normal blood pressure, blood lipids and resting-EKG. The catastrophe strikes without any prior warning.

 

The Arteriograph is an evidence based, fast, easy, noninvasive and user independent way of assessing cardiovascular risk. For the first time one have a good chance of finding high risk patients before it is too late .The Arteriograph is also used to evaluate the effect of different medications.

 

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