arterial blood pressure femoral vs radial

Central blood pressure (BP) can be assessed noninvasively based on radial tonometry and may potentially be a better predictor of clinical outcome than brachial BP. However, the validity of noninvasively obtained estimates has never been examined in patients with chronic kidney disease (CKD). Here we compared invasive aortic systolic BP (SBP) with estimated central SBP obtained by radial artery tonometry and examined the influence of renal function and arterial stiffness on this relationship. We evaluated 83 patients with stage 3 to 5 CKD (mean estimated glomerular filtration rate [eGFR] 30 ml/min/1...

BACKGROUND: A central-to-radial arterial pressure gradient may occur after cardiopulmonary bypass (CPB), which, in some patients, may last for a prolonged time after CPB. Whenever there is a pressure gradient, the radial artery pressure measure may underestimate a more centrally measured systemic pressure, which may result in a misguided therapeutic strategy. It is clinically important to identify the risk factors that may predict the appearance of a central-to-radial pressure gradient, because more central sites of measurements might then be considered to monitor systemic arterial pressure in high-risk patients...

OBJECTIVE: The loss of physiological stiffness mismatch between aorta and peripheral arteries was strongly and independently associated with increased mortality in adult dialysis population. The aim of the study was to evaluate if the reversal of arterial stiffness mismatch was present in pre-dialysis patients with chronic kidney disease (CKD). DESIGN AND METHOD: The aortic-brachial arterial stiffness mismatch (pulse wave velocity (PWV ratio) were assessed using carotid-femoral PWV divided by carotid-radial PWV in 112 adult treated hypertensive CKD patients: 54 - with CKD IIIa (age 59,5 ± 8,4 years, male 46,3%, brachial blood pressure (BP) 149,6 ± 10,3/85,8 ± 9,8 mmHg), 35 - with CKD IIIb (age 60,2 ± 7,8 years, male 45,7%, BP 152,5 ± 12,5/86,4 ± 10,2 mmHg) and 23 with CKD IV (age 57,3 ± 10,2, male 43,4%, BP 156,1 ± 14,3/92,8 ± 12,4 mmHg)...

Cardiac catheterization has been increasingly utilized to evaluate coronary artery disease in patients with end stage liver disease (ESLD). It is known in other populations that radial access reduces access site complications;however, there is a paucity of data in ESLD patients. We investigated vascular and bleeding complications rates between trans-femoral and trans-radial cardiac catheterizations in this high risk population. In this retrospective cohort study, three hundred and thirty four ESLD patients were identified between August 2004 and December 2012 who had undergone trans-femoral (femoral group) or trans-radial (radial group) cardiac catheterizations at our institution...

BACKGROUND: Elevated central pressures and arterial stiffness are associated with increased peripheral resistance and higher sympathetic nervous system activity. Additionally, consumption of a meal is known to be sympathoexcitatory. However, the acute effects of a meal on aortic wave reflection and stiffness are unknown. Therefore, we tested the hypothesis that aortic wave reflection and stiffness would increase after a meal. METHODS: We examined these effects using high-fidelity radial arterial pressure waveforms and carotid-femoral pulse wave velocity measured noninvasively by applanation tonometry before and 60 and 180 minutes after ingestion of a liquid mixed meal (Ensure; 40% of daily energy expenditure) in 17 healthy adults (9 men/8 women; aged 29 ± 2 years)...

OBJECTIVES: Cardioankle vascular index (CAVI) is a new index of arterial stiffness independent of immediate blood pressure. Homocysteine (Hcy) is an independent risk factor for vascular diseases. The aim of this study was to investigate the relationship between Hcy and CAVI in the vascular-related diseases. DESIGN: Descriptive research. PARTICIPANTS: 88 patients (M/F 46/42) with or without hypertension, coronary artery disease or arteriosclerosis obliterans were enrolled to our study...

OBJECTIVES: To determine if postmenopausal women have different arterial stiffness, blood pressure (BP) values, or metabolic patterns in comparison to fertile women and to men at a population level. METHODS: This is a population-based epidemiologic study of 1853 representative men and women aged 18-95 years. Clinostatic humeral BP was measured using Omron 705CP. Aortic BP, augmentation index (AI), and pulse wave velocity (PWV) were determined using applanation tonometry...

BACKGROUND AND AIMS: Recent studies have reported early atherosclerosis in patients with inflammatory bowel disease (IBD). In these patients, the chronic low-grade inflammation may predispose to vascular remodelling and arterial stiffening. We aimed at studying arterial stiffness in IBD patients. METHODS: Thirty-two IBD patients without cardiovascular risk factors and 32 matched controls were enrolled (age 19-49 years). SphygmoCor device (AtCor Medical, Sydney, Australia) was used to measure carotid-femoral and carotid-radial (muscular artery) pulse wave velocity (PWV), augmentation index and central blood pressure...

OBJECTIVE: To investigate whether radial augmentation index (AI) associates with cardiovascular risk as well as arterial stiffness. METHODS: A total of 4985 subjects, 2417 men and 2568 women, aged 18 - 96 (50.9 ± 14.7) years, were recruited. AI was measured in the left radial artery using tonometry Colin HEM-9000AI. Carotid-femoral PWV (CFPWV) and carotid-radial PWV (CRPWV) were examined by automatic pulse wave velocity (PWV) measuring system. Framingham risk score and Chinese ischemic cardiovascular disease risk score were applied upon subjects without cardiovascular disease to calculate individual cardiovascular risk respectively...

BACKGROUND: Transradial access for coronary intervention is associated with reduced access complications compared with transfemoral. Transradial access for renal artery intervention has been less well studied. Safety compared with transfemoral access is undetermined. METHODS AND RESULTS: We evaluated the feasibility of transradial renal intervention (n = 11 patients) and compared safety parameters with a matched group of transfemoral controls (n = 44). All transradial interventions were successful with no complications...

OBJECTIVE: Patients with primary hyperparathyroidism (pHPT) are at increased risk of cardiovascular mortality. We investigated whether aortic stiffness, an early marker of arteriosclerosis and a strong predictor of cardiovascular risk, is increased in pHPT, and whether it improves after parathyroidectomy. METHODS: Twenty-four patients with mild pHPT (age 56 ± 10 years, blood pressure 136/85 mmHg, serum calcium 2.55-3.00 mmol/L) and 48 control subjects individually matched with cases by age, sex and blood pressure underwent aortic (carotid-femoral) and upper-limb (carotid-radial) pulse wave velocity (PWV) determination by applanation tonometry in a case-control study...

BACKGROUND/OBJECTIVES: Pre-eclampsia (PE) is associated with profound changes in the maternal cardiovascular system. The aim of the present study was to assess whether alterations in the maternal arterial stiffness precede the onset of PE in at risk women. METHODOLOGY/PRINCIPAL FINDINGS: This was a cross sectional study involving 70 pregnant women with normal and 70 women with abnormal uterine artery Doppler examination at 22-24 weeks of gestation. All women had their arterial stiffness (augmentation index and pulse wave velocity of the carotid-femoral and carotid-radial parts of the arterial tree) assessed by applanation tonometry in the second trimester of pregnancy, at the time of the uterine artery Doppler imaging...

The purpose of this study was to evaluate central (carotid) artery blood pressure (BP) in endurance athletes. Carotid-femoral (= aortic) pulse wave velocity (PWV) together with radial and carotid tonometry and pulse wave analysis were performed at rest in 30 endurance athletes and 30 sedentary controls, all males matched for age, height, brachial systolic BP (SBP), and diastolic BP. Whereas brachial BP was similar in the two groups, carotid SBP and pulse pressure (PP) were higher in endurance athletes than in controls irrespective of age (123...

Despite the clinical importance of pulse-wave velocity (PWV), there are no standards for accurate carotid-radial pulse-wave measurement in uremic patients with respect to carotid-femoral measurement. We assessed the reproducibility of PWV values using the carotid-radial PWV measurement. We have measured the carotid-femoral PWV and carotid-radial PWV with an automated system (Pulse Pen, DiaTecne) using 2 different blind operators in 105 hemodialysis (HD) patients. The carotid-femoral waveforms were acquired by the first blind operator simultaneously with 2 pressure-sensitive transducers and the transit time of the pulse was calculated using the system software...

BACKGROUND AND AIMS: Carotid sinus hypersensitivity (CSH) is a common cause of fainting and falls in the older adult population and is diagnosed by carotid sinus massage (CSM). Previous work has suggested that age-related stiffening of blood vessels reduces afferent input from the carotid sinus leading to central upregulation of the overall arterial baroreflex response. We examined the differences in arterial stiffness and baroreflex function in older adults at high cardiovascular risk (advanced age, Type 2 diabetes, hypertension and hyperlipidemia) with and without CSH...

OBJECTIVE: The aim of the present study was to assess the relationships between metabolic syndrome, its components and arterial stiffness as well as evaluate the waist measurement that would accurately identify subclinical vascular damage. METHODS: Ninety-one participants (16 men) free of cardiovascular diseases with mean age 68.5 +/- 5.1 (range 60-80 years) and a BMI of 27.73 +/- 3.89 were included in the study. In each participant, we evaluated BMI, waist circumference, SBP and DBP, fasting glucose, cholesterol, low-density lipoprotein and high-density lipoprotein cholesterol, triglycerides and body composition by dual energy X-ray absorptiometry...

OBJECTIVE The relationship between increased arterial stiffness and cardiovascular mortality is well established in type 2 diabetes. We examined whether aerobic exercise could reduce arterial stiffness in older adults with type 2 diabetes complicated by comorbid hypertension and hyperlipidemia. RESEARCH DESIGN AND METHODS A total of 36 older adults (mean age 71.4 +/- 0.7 years) with diet-controlled or oral hypoglycemic-controlled type 2 diabetes, hypertension, and hypercholesterolemia were recruited. Subjects were randomly assigned to one of two groups: an aerobic group (3 months vigorous aerobic exercise) and a nonaerobic group (no aerobic exercise)...

Preeclampsia (PE) is characterized by an aberrant maternal cardiovascular adaptation to pregnancy and increased cardiovascular risk later on in life. The aim of this study was to compare the maternal wave reflections and arterial stiffness in women with established PE and those with normotensive pregnancies, after systematic adjustment for known confounders. This was a cross-sectional study involving 69 normotensive, pregnant women and 54 women with established PE. Maternal wave reflection (augmentation index) and pulse wave velocity of the carotid-radial and carotid-femoral parts of the arterial tree were assessed noninvasively using applanation tonometry...

OBJECTIVES: To investigate the safety of a novel percutaneous circulatory support device during high-risk percutaneous coronary intervention (PCI). BACKGROUND: The Reitan catheter pump (RCP) consists of a catheter-mounted pump-head with a foldable propeller and surrounding cage. Positioned in the descending aorta the pump creates a pressure gradient, reducing afterload and enhancing organ perfusion. METHODS: Ten consecutive patients requiring circulatory support underwent PCI; mean age 71 +/- 9; LVEF 34% +/- 11%; jeopardy score 8 +/- 2...

BACKGROUND: Arterial hypertension and premature coronary artery disease are poorly understood complications of cardiac transplantation in children. Arterial stiffness is associated with cardiovascular risk in adults. Pulse wave velocity (PWV) may be used as a surrogate for arterial rigidity. In this study we investigate PWV in children after cardiac transplantation. METHODS: Sitting blood pressure was measured in 22 children (>6 months after transplantation) and 95 controls and PWV was measured using the SphygmoCor device by high-fidelity applanation tonometry at the carotid, radial and femoral arteries...