keyword
MENU ▼
Read by QxMD icon Read
search

Sphygmocor

keyword
https://www.readbyqxmd.com/read/28914629/association-between-ambulatory-blood-pressure-values-and-central-aortic-pressure-in-a-large-population-of-normotensive-and-hypertensive-patients
#1
Ana Rouxinol-Dias, Sara Araújo, José A Silva, Loide Barbosa, Jorge Polónia
OBJECTIVE: Our aim was to examine the association of ambulatory blood pressure monitoring (ABPM) and central blood pressure (CBP) data in a large set of normotensive and hypertensive patients and its relation with pulse wave velocity (PWV). PATIENTS AND METHODS: This cross-sectional study was carried out in a single centre and included 2864 individuals who carried out an ABPM, measurement of CBP from the aortic waveform (SphygmoCor) and carotid-femoral PWV (Complior)...
September 13, 2017: Blood Pressure Monitoring
https://www.readbyqxmd.com/read/28882449/contribution-of-backward-and-forward-wave-pressures-to-age-related-increases-in-aortic-pressure-in-a-community-sample-not-receiving-antihypertensive-therapy
#2
Bryan Hodson, Gavin R Norton, Imraan Ballim, Pinhas Sareli, Angela J Woodiwiss
Reports on the contribution of aortic forward (Pf) and backward (Pb) wave pressures to age-related increases in central aortic pulse pressure (PPc) have been confounded by the use of participants receiving antihypertensive therapy. We assessed the relative contribution of Pf and Pb to age-related increases in PPc (radial applanation tonometry and SphygmoCor software using an assumed triangular wave for wave separation analysis) in 892 community participants not receiving antihypertensive therapy. We validated our results using aortic flow waves (echocardiography) for wave separation analysis in 254 of these participants...
August 24, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28860092/high-serum-adipocyte-fatty-acid-binding-protein-level-as-a-potential-biomarker-of-aortic-arterial-stiffness-in-hypertensive-patients-with-metabolic-syndrome
#3
Ming-Chun Chen, Bang-Gee Hsu, Chung-Jen Lee, Chiu-Fen Yang, Ji-Hung Wang
BACKGROUND: The adipocyte-fatty-acid-binding protein (A-FABP) has been implicated in arterial stiffness, metabolic syndrome (MetS), and cardiovascular disease. We aimed to determine the relationship among serum A-FABP concentration, cardiometabolic risk factors, and central arterial stiffness in a hypertensive population. METHODS: Fasting blood samples and baseline characteristics were obtained from 110 hypertensive patients. Serum A-FABP concentrations were determined by enzyme immunoassay kit...
October 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28855085/the-impact-of-accelerometer-wear-location-on-the-relationship-between-step-counts-and-arterial-stiffness-in-adults-treated-for-hypertension-and-diabetes
#4
Alexandra B Cooke, Stella S Daskalopoulou, Kaberi Dasgupta
OBJECTIVES: Accelerometer placement at the wrist is convenient and increasingly adopted despite less accurate physical activity (PA) measurement than with waist placement. Capitalizing on a study that started with wrist placement and shifted to waist placement, we compared associations between PA measures derived from different accelerometer locations with a responsive arterial health indicator, carotid-femoral pulse wave velocity (cfPWV). DESIGN: Cross-sectional study...
August 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28830251/the-effect-of-renal-denervation-on-arterial-stiffness-central-blood-pressure-and-heart-rate-variability-in-treatment-resistant-essential-hypertension-a-substudy-of-a-randomized-sham-controlled-double-blinded-trial-the-reset-trial
#5
Christian Daugaard Peters, Ole Norling Mathiassen, Henrik Vase, Jesper Bech Nørgaard, Kent Lodberg Christensen, Anne Pauline Schroeder, Hans Joachim von Hofe Rickers, Ulla Kampmann Opstrup, Per Løgstrup Poulsen, Sten Langfeldt, Gratien Andersen, Klavs Würgler Hansen, Hans Erik Bøtker, Morten Engholm, Jannik Buus Bertelsen, Erling Bjerregaard Pedersen, Anne Kaltoft, Niels Henrik Buus
OBJECTIVES: To investigate, whether renal denervation (RDN) improves arterial stiffness, central blood pressure (C-BP) and heart rate variability (HRV) in patients with treatment resistant hypertension. METHODS: ReSET was a randomized, sham-controlled, double-blinded trial (NCT01459900). RDN was performed by a single experienced operator using the Medtronic unipolar Symplicity Flex(TM) catheter. C-BP, carotid-femoral pulse wave velocity (PWV), and HRV were obtained at baseline and after six months with the SphygmoCor(®)-device...
August 23, 2017: Blood Pressure
https://www.readbyqxmd.com/read/28806778/serum-resistin-as-an-independent-marker-of-aortic-stiffness-in-patients-with-coronary-artery-disease
#6
Ji-Hung Wang, Chung-Jen Lee, Chiu-Fen Yang, Yu-Chih Chen, Bang-Gee Hsu
BACKGROUND: Subjects with higher carotid-femoral pulse wave velocity (cfPWV) will be at an increased risk for cardiovascular (CV) events in future. Resistin is an inflammatory mediator and a biomarker of CV diseases. We evaluated the association between serum resistin and aortic stiffness in patients with coronary artery disease (CAD). METHODS: A total of 104 patients with CAD were enrolled in this study. cfPWV was measured using the SphygmoCor system. Patients with cfPWV >10 m/s were defined as the high aortic stiffness group...
2017: PloS One
https://www.readbyqxmd.com/read/28745686/-effects-of-keto-amino-acids-and-a-low-protein-diet-on-the-nutritional-status-of-patients-with-stages-3b-4-chronic-kidney-disease
#7
S Yu Milovanova, Yu S Milovanov, M V Taranova, I A Dobrosmyslov
AIM: To evaluate the efficacy of keto/amino acids in maintaining protein balance and preventing mineral metabolic disturbances and the development of uremic hyperparathyroidism in the long-term use of a low-protein diet (LPD) in patients with Stages 3B-4 chronic kidney disease (CKD). SUBJECTS AND METHODS: Ninety patients with CKD caused by chronic latent glomerulonephritis in 65 patients and chronic tubulointerstitial nephritis of various etiologies (gout, drug-induced, and infection) in 25 were examined...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28731929/impact-of-aortic-rather-than-brachial-pulsatile-haemodynamics-on-variations-in-end-organ-measures-across-the-full-adult-blood-pressure-range
#8
Bryan Hodson, Gavin R Norton, Imraan Ballim, Carlos D Libhaber, Pinhas Sareli, Angela J Woodiwiss
AIMS: To determine the extent to which the adverse effects of blood pressure (BP) are mediated by pulsatile haemodynamic changes across the normotensive as compared with the hypertensive adult brachial BP range, and whether aortic rather than brachial pulsatile changes best index these effects. METHODS: In 1307 community participants, the contribution of pulsatile haemodynamics (applanation tonometry and SphygmoCor software) to variations in left ventricular mass index (LVMI) (echocardiography) (n = 920), carotid intima-media thickness (IMT) (n = 712) and estimated glomerular filtration rate (eGFR) (n = 1164) were assessed...
July 20, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28692445/normal-cerebral-vascular-pulsations-in-humans-changes-with-age-and-implications-for-microvascular-disease
#9
Mi O Kim, Yan Li, Fangfei Wei, Jiguang Wang, Michael F O'Rourke, Audrey Adji, Alberto P Avolio
BACKGROUND: Cerebral syndromes in older humans, secondary stroke in younger persons following trauma, and sickle cell anaemia in children, are linked by unexplained microvascular damage and high cerebral pressure or flow pulsations. The aim of this study was to characterize age-related pressure and flow waveforms patterns entering the brain, to explain these in terms of disturbed physiological function, and to consider clinical implications. METHOD: Blood flow velocity waves were measured in four cerebral vascular territories by transcranial Doppler of 1020 apparently normal patients (497 men, 21-78 years)...
July 7, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28689709/the-reliability-of-short-term-measurement-of-heart-rate-variability-during-spontaneous-breathing-in-people-with-chronic-obstructive-pulmonary-disease
#10
C A Sima, J A Inskip, A W Sheel, S F van Eeden, W D Reid, P G Camp
BACKGROUND: Reduced heart rate variability (HRV), a marker of autonomic system dysfunction, has been reported in patients with chronic obstructive pulmonary disease (COPD). Yet, limited data exists on the reliability of HRV measurement in this population. Here we investigated the reliability of short-term HRV measurement performed during spontaneous breathing in patients with COPD. METHODS: Thirteen individuals (8 males) with moderate-to-severe COPD (FEV1 46±16% predicted; FEV1/FVC 49±13) underwent standard time and frequency domain HRV measurements derived from 5-minute electrocardiograms collected on two separate days using a SphygmoCor device...
July 6, 2017: Revista Portuguesa de Pneumologia
https://www.readbyqxmd.com/read/28660595/mismatch-between-stiffness-in-elastic-and-muscular-arteries-as-a-predictor-of-vascular-calcification-in-dialysis-patients
#11
Agne Laucyte-Cibulskiene, Modesta Petraviciute, Migle Gudynaite, Liutauras Gumbys, Dileta Valanciene, Kristina Galiauskiene, Ligita Ryliskyte, Laurynas Rimsevicius, Marius Miglinas, Kestutis Strupas
BACKGROUND: Vascular calcification is one of the risk factors for arterial stiffness in patients with chronic kidney disease. We hypothesized that a mismatch between elastic and muscular arteries, represented as pulse wave velocity (PWV) ratio, could depict the extent of vascular calcification in end-stage renal disease. We also aimed to compare the predictive PWV ratio value to other factors possibly related to vascular calcification in dialysis population. METHODS: In this cross-sectional study, in 60 chronic dialysis patients without previous cerebrovascular events, cardiovascular disease and events or clinically evident peripheral artery disease (ankle-brachial index >0...
June 28, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28658167/loss-of-nighttime-blood-pressure-dipping-as-a-risk-factor-for-coronary-artery-calcification-in-nondialysis-chronic-kidney-disease
#12
Hoon Young Choi, Chan Joo Lee, Jung Eun Lee, Hyun Su Yang, Ha Yan Kim, Hyeong Cheon Park, Hyeon Chang Kim, Hyuk-Jae Chang, Sung-Ha Park, Beom Seok Kim
Diurnal variations in blood pressure (BP) loss are closely associated with target organ damage and cardiovascular events. The quantity of coronary artery calcification (CAC) correlates with the atherosclerotic plaque burden, and an increased quantity indicates a substantially increased risk of cardiovascular events. This study investigated the nighttime diurnal variation in BP loss associated with CAC in patients with chronic kidney disease (CKD).Of the 1958 participants, we enrolled 722 participants with CKD without a history of acute coronary syndrome or symptomatic coronary artery disease...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28645731/aortic-backward-waves-rather-than-stiffness-account-for-independent-associations-between-pulse-pressure-amplification-and-left-ventricular-mass-in-a-young-to-middle-aged-sample
#13
Moekanyi J Sibiya, Gavin R Norton, Hendrik L Booysen, Grace Tade, Carlos D Libhaber, Imraan Ballim, Pinhas Sareli, Angela J Woodiwiss
A decreased aortic-to-brachial pulse pressure (PP) amplification, which is independently associated with cardiovascular outcomes, may index several aortic functional changes. However, that aortic functional change most likely to account for this effect is uncertain. In 706 randomly selected community participants of African ancestry with a mean age of 44.4 ± 18.2 years, we assessed aortic function using radial applanation tonometry and SphygmoCor software (including forward [Pf] and backward [Pb] wave separation analysis assuming a triangular flow waveform) and left ventricular mass index (LVMI) (echocardiography)...
June 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28639151/central-arterial-function-measured-by-non-invasive-pulse-wave-analysis-is-abnormal-in-patients-with-duchenne-muscular-dystrophy
#14
Thomas D Ryan, John J Parent, Zhiqian Gao, Philip R Khoury, Elizabeth Dupont, Jennifer N Smith, Brenda Wong, Elaine M Urbina, John L Jefferies
Duchenne muscular dystrophy (DMD) is an X-linked recessive disorder caused by mutation of dystrophin. Cardiovascular involvement includes dilated cardiomyopathy. Non-invasive assessment of vascular function has not been evaluated in DMD. We hypothesize arterial wave reflection is abnormal in patients with DMD. Pulse wave analysis was performed on DMD patients with a SphygmoCor SCOR-PVx System to determine central blood pressure and augmentation index (AIx) as an assessment of arterial wave reflection. Results were compared to a control group...
August 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28601121/relationship-between-subendocardial-viability-ratio-and-hemoglobin-in-patients-with-chronic-kidney-disease
#15
Robert Ekart, Sebastjan Bevc, Nina Hojs, Tina Stropnik Galuf, Martin Hren, Benjamin Dvoršak, Maša Knehtl, Eva Jakopin, Igor Krajnc, Radovan Hojs
AIMS: Pulse wave analysis (PWA) uses the technique of applanation tonometry to obtain a peripheral pulse pressure waveform from which central hemodynamic information is derived. Using PWA, subendocardial viability ratio (SEVR) can be measured. SEVR represents a noninvasive measure of myocardial perfusion. It is related to the work of the heart, the oxygen consumption, and the energy supply of the heart. Anemia is a common complication of chronic kidney disease (CKD). A complex relationship exists between CKD, cardiovascular disease (CVD), and anemia...
2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28590772/arterial-stiffness-in-fertile-women-with-metabolic-syndrome
#16
Tiina Vilmi-Kerälä, Teemu Koivistoinen, Outi Palomäki, Jukka Uotila, Ari Palomäki
INTRODUCTION: Although metabolic syndrome (MetS) is evidently associated with the risk of cardiovascular disease (CVD), recently its use has been questioned. We studied the utility of MetS diagnosis when estimating individual CVD risk. METHODS: We compared 27 fertile women with MetS and 27 counterparts without the syndrome, matched pairwise according to well-known risk factors of CVD. Pulse wave velocity (PWV) and central blood pressure (cBP) were determined noninvasively via a SphygmoCor device...
June 7, 2017: Annals of Medicine
https://www.readbyqxmd.com/read/28566932/postural-changes-in-measures-of-arterial-stiffness-in-hypertensive-subjects-on-antihypertensive-drug-therapy-a-prospective-pilot-study
#17
Ashish Anil Sule, Du Qi Jun, Chin Yee Cheong
Prospective study with a controlled arm to know if there are variations of measures of arterial stiffness with posture in subjects with hypertension on antihypertensive medications. We studied postural variations of measures of arterial stiffness in 21 subjects with diagnosed hypertension on antihypertensive medications and compared them with 21 normotensive subjects. All subjects underwent pulse-wave analysis on SphygmoCor in the morning between 8 am to 10 am initially in supine and then in sitting position after 3 minutes...
June 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28528875/comparison-of-central-and-peripheral-hemodynamics-in-association-with-left-ventricular-diastolic-dysfunction-in-the-community-based-elderly-chinese
#18
Jing Xiong, Xuejing Yu, Shikai Yu, Bin Bai, Henry Xu, Hongwei Ji, Jiadela Teliewubai, Kai Wang, Chen Chi, Yuyan Lu, Yiwu Zhou, Ximin Fan, Jue Li, Yi Zhang, Yawei Xu
The aim of the study was to investigate the association of left ventricular diastolic dysfunction (LVDD) with central and peripheral hemodynamics. A total of 1599 community-based senior residents (aged ≥ 65 years) in northern Shanghai, China, were recruited as of August 2015. Echocardiography was performed for each participant using the MyLab30 Gold CV system. According to the recommendations from the American Society of Echocardiography, the ratio of E (peak early diastolic transmitral flow velocity) to E' (early diastolic lateral mitral annulus velocity) was assessed for the evaluation of LVDD...
April 27, 2017: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/28520843/measurement-of-aortic-pulse-wave-velocity-with-a-connected-bathroom-scale
#19
David Campo, Hakim Khettab, Roger Yu, Nicolas Genain, Paul Edouard, Nadine Buard, Pierre Boutouyrie
BACKGROUND: Measurement of arterial stiffness should be more available. Our aim was to show that aortic pulse wave velocity can be reliably measured with a bathroom scale combining the principles of ballistocardiography (BCG) and impedance plethysmography on a single foot. METHOD: The calibration of the bathroom scale was conducted on a group of 106 individuals. The aortic pulse wave velocity was measured with the SphygmoCor in the supine position. Three consecutive measurements were then performed on the Withings scale in the standing position...
September 1, 2017: American Journal of Hypertension
https://www.readbyqxmd.com/read/28486936/effects-of-inaccuracies-in-arterial-path-length-measurement-on-differences-in-mri-and-tonometry-measured-pulse-wave-velocity
#20
Jonathan R Weir-McCall, Faisel Khan, Deirdre B Cassidy, Arsh Thakur, Jennifer Summersgill, Shona Z Matthew, Fiona Adams, Fiona Dove, Stephen J Gandy, Helen M Colhoun, Jill Jf Belch, J Graeme Houston
BACKGROUND: Carotid-femoral pulse wave velocity (cf-PWV) and aortic PWV measured using MRI (MRI-PWV) show good correlation, but with a significant and consistent bias across studies. The aim of the current study was to evaluate whether the differences between cf.-PWV and MRI-PWV can be accounted for by inaccuracies of currently used distance measurements. METHODS: One hundred fourteen study participants were recruited into one of 4 groups: Type 2 diabetes melltus (T2DM) with cardiovascular disease (CVD) (n = 23), T2DM without CVD (n = 41), CVD without T2DM (n = 25) and a control group (n = 25)...
May 10, 2017: BMC Cardiovascular Disorders
keyword
keyword
51094
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"