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https://www.readbyqxmd.com/read/28063813/assessment-of-vascular-function-in-low-socioeconomic-status-preschool-children-a-pilot-study
#1
Lama Ghazi, Tanja Dudenbostel, Daisy Xing, Deborah Ejem, Anne Turner-Henson, Cynthia Irwin Joiner, Olivia Affuso, Andres Azuero, Suzanne Oparil, David A Calhoun, Marti Rice, Fadi G Hage
Elevated brachial blood pressure (BP) in childhood tracks into adulthood. Central BP and measures of arterial stiffness, such as aortic augmentation index (AIx) and pulse wave velocity (PWV), have been associated with future cardiovascular disease. This pilot study assessed the feasibility of noninvasively measuring these parameters in preschool children and explored factors that may be associated with elevated BP in this age group. Brachial BP was measured using an electronic oscillometric unit (Dinamap PRO 100) and defined as elevated when systolic BP (SBP) and/or diastolic BP (DBP) was ≥ the 90th percentile for age, gender, and height...
December 24, 2016: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28043670/vascular-aging-and-hypertension-implications-for-the-clinical-application-of-central-blood-pressure
#2
REVIEW
Hao-Min Cheng, Sungha Park, Qifang Huang, Satoshi Hoshide, Ji-Guang Wang, Kazuomi Kario, Chang-Gyu Park, Chen-Huan Chen
Vascular aging may be responsible for the high residual lifetime risk for hypertension in the middle-aged and elderly individuals. Increased arterial stiffness and wave reflection has been recognized as the dominant hemodynamic manifestations of vascular aging, and both are major determinants of central blood pressure (BP) and independent predictors for incident hypertension. Because central BP is strongly linearly associated with age, it can be regarded as an integrated marker for vascular aging. Central BP can be measured noninvasively using various techniques, including the convenient cuff-based oscillometric central BP monitors...
December 27, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27939486/changes-in-cerebral-autoregulation-in-the-second-half-of-pregnancy-and-compared-to-non-pregnant-controls
#3
Teelkien R van Veen, Ronney B Panerai, Sina Haeri, Paul P van den Berg, Gerda G Zeeman, Michael A Belfort
OBJECTIVE: The mechanism by which pregnancy affects the cerebral circulation is unknown, but it has a central role in the development of neurological complications in preeclampsia, which is believed to be related to impaired autoregulation. We evaluated the cerebral autoregulation in the second half of pregnancy, and compared this with a control group of healthy, fertile non-pregnant women. METHODS: In a prospective cohort analysis, cerebral blood flow velocity of the middle cerebral artery (determined by transcranial Doppler), blood pressure (noninvasive arterial volume clamping), and end-tidal carbon dioxide (EtCO2) were simultaneously collected for 7min...
October 2016: Pregnancy Hypertension
https://www.readbyqxmd.com/read/27930515/usefulness-of-the-maximum-rate-of-pressure-rise-in-the-central-and-peripheral-arteries-after-weaning-from-cardiopulmonary-bypass-in-pediatric-congenital-heart-surgery-a-retrospective-analysis
#4
Jung-Won Kim, Ji-Yeon Bang, Chun Soo Park, Mijeung Gwak, Won-Jung Shin, Gyu-Sam Hwang
The maximum rate of pressure rise (dP/dtmax) in radial artery has been proposed as a noninvasive surrogate of aortic dp/dtmax, reflecting left ventricular (LV) contractility in children. The aim of this study was to investigate relationship between aortic and radial dp/dtmax at weaning from cardiopulmonary bypass (CPB) and usefulness of these indices for estimating postoperative outcomes in pediatric congenital heart surgery.Aortic and radial arterial pressure waveforms were analyzed simultaneously during weaning from CPB in 29 congenital heart surgery...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27915164/can-the-cerebral-regional-oxygen-saturation-be-a-perfusion-parameter-in-shock
#5
Ashraf Al Tayar, Amr Abouelela, Khaja Mohiuddeen
INTRODUCTION: Shock, defined as a state of tissue hypoperfusion and the tissues reperfusion, is the main goal of management of shock. Increase in central venous saturation (CvSo2) and decrease in blood lactate level are useful in assessment of adequacy of tissue perfusion. Near-infrared spectroscopy is a noninvasive way to observe real-time changes in regional cerebral saturation and has been used in patients with different brain diseases. There is a small body of literature suggesting that cerebral regional oxygen saturation (CrSo2) monitoring added a value in assessment and management of intensive care unit (ICU) patients...
November 10, 2016: Journal of Critical Care
https://www.readbyqxmd.com/read/27884226/patient-management-of-hypertensive-subjects-without-and-with-diabetes-mellitus-type-ii
#6
REVIEW
Michel E Safar, Jacques Blacher, Athanase D Protogerou
The description of blood pressure (BP) curve has evolved to include several noninvasively determined parameters, such as aortic stiffness, BP variability, wave reflections, and pulse pressure amplification. These techniques are likely to improve the efficacy of assessing pulsatile arterial hemodynamics and changes in arterial stiffness. The goal for future antihypertensive treatments should not only reduce steady BP, but also control pulsatile pressure and modify the stiffness gradient between central and peripheral arteries, which is frequently elevated...
January 2017: Medical Clinics of North America
https://www.readbyqxmd.com/read/27830091/new-indices-of-endothelial-function-measured-by-digital-thermal-monitoring-of-vascular-reactivity-data-from-6084-patients-registry
#7
Morteza Naghavi, Albert A Yen, Alex W H Lin, Hirofumi Tanaka, Stanley Kleis
Background. Endothelial function is viewed as a barometer of cardiovascular health and plays a central role in vascular reactivity. Several studies showed digital thermal monitoring (DTM) as a simple noninvasive method to measure vascular reactivity that is correlated with atherosclerosis risk factors and coronary artery disease. Objectives. To further evaluate the relations between patient characteristics and DTM indices in a large patient registry. Methods. DTM measures were correlated with age, sex, heart rate, and systolic and diastolic blood pressure in 6084 patients from 18 clinics...
2016: International Journal of Vascular Medicine
https://www.readbyqxmd.com/read/27754283/me-04-1-assessment-of-central-blood-pressure-for-clinical-application
#8
Trefor Morgan
Central Systolic Blood Pressure is lower than brachial artery blood Pressure due to reflected waves and greater augmentation at the periphery. The relationship is not consistent during life and alters with aging of the blood vessels. Increasing stiffness means that a greater component of the reflected waves returns to the central aorta during systolic contraction causing more amplification and a higher systolic blood pressure. Diastolic blood pressure on the other hand is always higher in the aorta than at the periphery allowing blood flow...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27682002/oxidized-ldl-insulin-resistance-and-central-blood-pressure-after-gestational-diabetes-mellitus
#9
Tiina Vilmi-Kerälä, Outi Palomäki, Päivi Kankkunen, Leena Juurinen, Jukka Uotila, Ari Palomäki
INTRODUCTION: Gestational diabetes mellitus (GDM) is an indicator of future cardiovascular disease. We investigated whether sensitive biomarkers of increased cardiovascular risk differ between women with and without a history of GDM few years after pregnancy, and whether obesity affects the results. MATERIAL AND METHODS: We studied two cohorts - 120 women with a history of GDM and 120 controls, on average 3.7 years after delivery. Circulating concentrations of oxidized low-density lipoprotein (oxLDL) were determined by ELISA...
December 2016: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/27643281/me-04-1-assessment-of-central-blood-pressure-for-clinical-application
#10
Trefor Morgan
Central Systolic Blood Pressure is lower than brachial artery blood Pressure due to reflected waves and greater augmentation at the periphery. The relationship is not consistent during life and alters with aging of the blood vessels. Increasing stiffness means that a greater component of the reflected waves returns to the central aorta during systolic contraction causing more amplification and a higher systolic blood pressure. Diastolic blood pressure on the other hand is always higher in the aorta than at the periphery allowing blood flow...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27594392/influence-of-a-high-intensity-interval-training-session-on-peripheral-and-central-blood-pressure-at-rest-and-during-stress-testing-in-healthy-individuals
#11
Sascha Ketelhut, Florian Milatz, Walter Heise, Reinhard G Ketelhut
BACKGROUND: Regular physical activity is known to reduce arterial pressure (BP). In a previous investigation, we could prove that even a single bout of moderate-intensity continuous exercise (MICE) causes a prolonged reduction in BP. Whether high-intensity interval training (HIIT) has a favourable influence on BP, and therefore may be followed subjects and methods by a prolonged BP reduction, should be examined on the basis of blood pressure response after exercise and during a subsequent stress test...
September 2016: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/27508742/-op-5b-08-impact-of-seasonality-and-air-pollutants-on-carotid-femoral-pulse-wave-velocity-in-hypertensive-patients
#12
M Di Pilla, R M Bruno, L Ghiadoni, F Stea, L Massetti, I Bertolozzi, S Taddei, P A Modesti
OBJECTIVE: The effects of seasonality on blood pressure (BP) and cardiovascular events are well established. However, the influence of seasonality and other environmental factors such as air pollutants on arterial stiffness, a key parameter for cardiovascular risk stratification in hypertensive patients, has never been analyzed. This cross-sectional study aimed at investigating whether seasonality (daily number of hours of light) and acute variations in outdoor temperature and air pollutants may affect carotid-femoral pulse wave velocity (PWV)...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27467272/assessment-of-the-adequacy-of-oxygen-delivery
#13
Katherine Mayer, Stephen Trzeciak, Nitin K Puri
PURPOSE OF REVIEW: This article reviews the recent literature pertaining to assessment of the adequacy of oxygen delivery in critically ill patients with circulatory shock. RECENT FINDINGS: The assessment of the adequacy of oxygen delivery has traditionally involved measurement of lactate, central (or mixed) venous oxygen saturation (ScvO2), and global hemodynamic markers such as mean arterial pressure and cardiac index. The search for noninvasive, reliable, and sensitive methods to detect derangements in oxygen delivery and utilization continues...
October 2016: Current Opinion in Critical Care
https://www.readbyqxmd.com/read/27456517/relations-of-arterial-stiffness-and-brachial-flow-mediated-dilation-with-new-onset-atrial-fibrillation-the-framingham-heart-study
#14
Amir Y Shaikh, Na Wang, Xiaoyan Yin, Martin G Larson, Ramachandran S Vasan, Naomi M Hamburg, Jared W Magnani, Patrick T Ellinor, Steven A Lubitz, Gary F Mitchell, Emelia J Benjamin, David D McManus
The relations of measures of arterial stiffness, pulsatile hemodynamic load, and endothelial dysfunction to atrial fibrillation (AF) remain poorly understood. To better understand the pathophysiology of AF, we examined associations between noninvasive measures of vascular function and new-onset AF. The study sample included participants aged ≥45 years from the Framingham Heart Study offspring and third-generation cohorts. Using Cox proportional hazards regression models, we examined relations between incident AF and tonometry measures of arterial stiffness (carotid-femoral pulse wave velocity), wave reflection (augmentation index), pressure pulsatility (central pulse pressure), endothelial function (flow-mediated dilation), resting brachial arterial diameter, and hyperemic flow...
September 2016: Hypertension
https://www.readbyqxmd.com/read/27401535/estimated-aortic-blood-pressure-based-on-radial-artery-tonometry-underestimates-directly-measured-aortic-blood-pressure-in-patients-with%C3%A2-advancing-chronic-kidney-disease-staging-and%C3%A2-increasing-arterial-stiffness
#15
Rasmus K Carlsen, Christian D Peters, Dinah S Khatir, Esben Laugesen, Hans Erik Bøtker, Simon Winther, Niels H Buus
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...
October 2016: Kidney International
https://www.readbyqxmd.com/read/27324693/cardiovascular-and-hemodynamic-responses-to-adapted-physical-exercises-in-very-old-adults
#16
Michele Panzarino, Angela Gravina, Veronica Carosi, Patrizio Crobeddu, Alessia Tiroli, Roberto Lombardi, Stefano D'Ottavio, Alberto Galante, Jacopo M Legramante
BACKGROUND: Aging is characterized by a physiological reduction in physical activity, which is inversely correlated with survival. AIMS: Aim of the present study is to evaluate the cardiovascular, central hemodynamic and autonomic responses to a single bout of adapted physical exercise in octogenarian subjects. METHODS: We studied cardiovascular, hemodynamic and autonomic responses to adapted physical activity in 33 subjects by a noninvasive methodology (Nexfin(®), Edwards Lifesciences Corporation)...
June 20, 2016: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/27317573/comparison-of-central-blood-pressure-estimated-by-a-cuff-based-device-with-radial-tonometry
#17
Xiaoqing Peng, Martin G Schultz, Walter P Abhayaratna, Michael Stowasser, James E Sharman
BACKGROUND: New techniques that measure central blood pressure (BP) using an upper arm cuff-based approach require performance assessment. The aim of this study was to compare a cuff-based device (CuffCBP) to estimate central BP indices (systolic BP (SBP), diastolic BP (DBP), pulse pressure (PP), augmentation pressure (AP), augmentation index (AIx)) with noninvasive radial tonometry (TonCBP). METHODS: Consecutive CuffCBP (SphygmoCor Xcel) and TonCBP (SphygmoCor 8...
October 2016: American Journal of Hypertension
https://www.readbyqxmd.com/read/27316915/french-intensive-care-society-international-congress-r%C3%A3-animation-2016
#18
(no author information available yet)
No abstract text is available yet for this article.
June 2016: Annals of Intensive Care
https://www.readbyqxmd.com/read/27233300/comparison-of-noninvasive-pulse-transit-time-estimates-as-markers-of-blood-pressure-using-invasive-pulse-transit-time-measurements-as-a-reference
#19
COMPARATIVE STUDY
Mingwu Gao, N Bari Olivier, Ramakrishna Mukkamala
Pulse transit time (PTT) measured as the time delay between invasive proximal and distal blood pressure (BP) or flow waveforms (invasive PTT [I-PTT]) tightly correlates with BP PTT estimated as the time delay between noninvasive proximal and distal arterial waveforms could therefore permit cuff-less BP monitoring. A popular noninvasive PTT estimate for this application is the time delay between ECG and photoplethysmography (PPG) waveforms (pulse arrival time [PAT]). Another estimate is the time delay between proximal and distal PPG waveforms (PPG-PTT)...
May 2016: Physiological Reports
https://www.readbyqxmd.com/read/27195242/practical-suitability-of-a-stand-alone-oscillometric-central-blood-pressure-monitor-a-review-of-the-microlife-watchbp-office-central
#20
Willem J Verberk, Hao-Min Cheng, Li-Chih Huang, Chia-Ming Lin, Yao-Pin Teng, Chen-Huan Chen
Accumulating evidence indicates that central blood pressure (CBP) is a better cardiovascular risk predictor than brachial blood pressure (BP). Although more additional benefits of CBP-based treatment above usual hypertension treatment are to be demonstrated, the demand for implementing CBP assessment in general clinical practice is increasing. For this, the measurement procedure must be noninvasive, easy to perform, and cost- and time-efficient. Therefore, oscillometric devices with the possibility to assess CBP seem the best option...
April 2016: Pulse (Basel, Switzerland)
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