keyword
MENU ▼
Read by QxMD icon Read
search

mitral inflow propagation velocity

keyword
https://www.readbyqxmd.com/read/27009112/effects-of-lowered-dialysate-sodium-on-left-ventricle-function-and-brain-natriuretic-peptide-in-maintenance-of-hemodialysis-patients
#1
A Akyol, S Akdag, M Asker, H A Gumrukcuoglu, R Duz, K C Demirel, F Ozturk, M Yaman, M Sahin, H Simsek, M Tuncer, H Begenik
INTRODUCTION: Impaired diastolic flow is characterized by decreased left ventricular (LV) filling diastole, abnormal LV distensibility, or delayed relaxation. B-Type natriuretic peptide (BNP) is an indicator of various cardiovascular diseases and body volume status. The aim of this study was to determine whether the lowering of dialysate sodium (Na) levels is effective on LV systolic and diastolic parameters and BNP in the maintenance of hemodialysis patients. MATERIALS AND METHODS: The study included 49 chronic hemodialysis patients...
March 22, 2016: Human & Experimental Toxicology
https://www.readbyqxmd.com/read/26940654/systolic-diastolic-functional-coupling-in-healthy-children-and-in-those-with-dilated-cardiomyopathy
#2
Mark K Friedberg, Renee Margossian, Minmin Lu, Laura Mercer-Rosa, Heather T Henderson, Arni Nutting, Kevin Friedman, Kimberly M Molina, Karen Altmann, Charles Canter, Lynn A Sleeper, Steven D Colan
Systolic and diastolic function affect dilated cardiomyopathy (DCM) outcomes. However, systolic-diastolic coupling, as a distinct characteristic, may itself affect function but is poorly characterized. We hypothesized that echocardiographic left ventricular (LV) longitudinal systolic tissue velocities (S') correlate with diastolic longitudinal velocities (E') and that their relationship is associated with ventricular function and that this relationship is impaired in pediatric DCM. We analyzed data from the Pediatric Heart Network Ventricular Volume Variability study, using linear regression and generalized additive modeling to assess relationships between S' and E' at the lateral and septal mitral annulus...
June 1, 2016: Journal of Applied Physiology
https://www.readbyqxmd.com/read/25847840/high-temporal-velocity-encoded-mri-for-the-assessment-of-left-ventricular-inflow-propagation-velocity-comparison-with-color-m-mode-echocardiography
#3
COMPARATIVE STUDY
Emmeline E Calkoen, Nina Ajmone Marsan, Jeroen J Bax, Pieter J van den Boogaard, Arno A W Roest, Albert de Roos, Jos J M Westenberg
PURPOSE: To develop an alternative method for Vp-assessment using high-temporal velocity-encoded magnetic resonance imaging (VE-MRI). Left ventricular (LV) inflow propagation velocity (Vp) is considered a useful parameter in the complex assessment of LV diastolic function and is measured by Color M-mode echocardiography. MATERIALS AND METHODS: A total of 43 patients diagnosed with ischemic heart failure (61 ± 11 years) and 22 healthy volunteers (29 ± 13 years) underwent Color M-mode echocardiography and VE-MRI to assess the inflow velocity through the mitral valve (mean interexamination time 14 days)...
November 2015: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/25739068/influence-of-intraaortic-balloon-pump-counterpulsation-on-transesophageal-echocardiography-derived-determinants-of-diastolic-function
#4
Martina Nowak-Machen, Jan N Hilberath, Peter Rosenberger, Eckhard Schmid, Stavros G Memtsoudis, Johannes Angermair, Jayshree K Tuli, Stanton K Shernan
INTRODUCTION: Intraaortic balloon pump counterpulsation (IABP) is often used in patients with acute coronary syndrome for its favourable effects on left ventricular (LV) systolic function and coronary perfusion. However, the effects of IABP on LV diastolic function have not been comprehensively investigated. Acute diastolic dysfunction has been linked to increased morbidity and mortality. The aim of this study was to examine the influence of IABP on LV diastolic dysfunction using standard TEE derived parameters...
2015: PloS One
https://www.readbyqxmd.com/read/25193183/applicability-of-published-guidelines-for-assessment-of-left-ventricular-diastolic-function-in-adults-to-children-with-restrictive-cardiomyopathy-an-observational-study
#5
Nao Sasaki, Mario Garcia, H Helen Ko, Sangeeta Sharma, Ira A Parness, Shubhika Srivastava
Guidelines for diagnosis and grading of diastolic dysfunction (DD) in children have not been established. The applicability of adult parameters of DD to children has been questioned by recent studies. Although normal diastolic parameters in children have been published, the data to support application of these indices for the non-invasive diagnosis of DD and quantifying its degree are still being developed. Restrictive cardiomyopathy (RCM) is the only recognized disease entity in children that presents with isolated, irreversible DD as the predominant finding...
February 2015: Pediatric Cardiology
https://www.readbyqxmd.com/read/25152379/measurement-of-regional-pulse-wave-velocity-using-spatial-compound-imaging-of-the-common-carotid-artery-in-vivo
#6
Ryo Nagaoka, Genta Masuno, Kazuto Kobayashi, Shin Yoshizawa, Shin-ichiro Umemura, Yoshifumi Saijo
Pulse-wave velocity (PWV) is an important index for diagnosing cardiovascular diseases. The pulse wave is volumetric change induced by heartbeat or inflowing blood, and significantly depends on the propagating path and stiffness of the artery. In this study, PWV of the propagating wave was visualized using spatial compound imaging with high temporal resolution. The frame rate was 1000 Hz, or a time interval of 1 ms. Subjects were four young healthy males and one young healthy female (n=5, age: 23.8±1.17 years old), and the measurement area was the right common carotid artery...
January 2015: Ultrasonics
https://www.readbyqxmd.com/read/24685005/detection-of-early-diastolic-alterations-by-tissue-doppler-imaging-in-untreated-childhood-onset-essential-hypertension
#7
Ngozi C Agu, Karen McNiece Redwine, Cynthia Bell, Kathleen Marie Garcia, David S Martin, Tim S Poffenbarger, John T Bricker, Ronald J Portman, Monesha Gupta-Malhotra
The aim of the study was to determine the presence of preclinical diastolic dysfunction in hypertensive children relative to normotensive children by Tissue Doppler Imaging (TDI). We prospectively enrolled children with untreated essential hypertension in absence of any other disease and a matched healthy control group with normal blood pressure (BP); both groups confirmed by clinic BP and a 24-hour ambulatory BP monitoring. Echocardiographic diastolic parameters were determined using spectral transmitral inflow Doppler, flow propagation velocity, TDI, and systolic parameters were determined via midwall shortening fraction and ejection fraction...
May 2014: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/24675004/epicardial-fat-rather-than-pericardial-fat-is-independently-associated-with-diastolic-filling-in-subjects-without-apparent-heart-disease
#8
S Dabbah, H Komarov, A Marmor, N Assy
BACKGROUND AND AIM: Epicardial and pericardial fat are separate fat depots surrounding the heart. Previous studies found epicardial fat to be associated with diastolic dysfunction, but they had some limitations. Pericardial fat association with diastolic dysfunction was not examined. Our aim was to assess the relation of epicardial and pericardial fat with diastolic filling. METHODS AND RESULTS: In 73 volunteers without known heart disease or complaints, using echocardiography, we measured epicardial and pericardial fat thickness from long(LAX) and short(SAX) axis views and assessed diastolic filling: mitral inflow (E/A ratio, E wave deceleration time[DT]), pulmonary vein flow (systolic/diastolic ratio [S/D], systolic filling fraction[SFR], late retrograde velocity[Ar]), color M-mode flow propagation velocity [Vp], and tissue Doppler derived mitral early annular velocities at the septum [e' sep] and lateral wall [e'-lat]...
August 2014: Nutrition, Metabolism, and Cardiovascular Diseases: NMCD
https://www.readbyqxmd.com/read/24052982/-echocardiographic-methods-for-assessment-of-left-ventricular-diastolic-dysfunction-state-of-the-art
#9
REVIEW
Agata Krzesiak-Łodyga, Andrzej Cwetsch
The assessment of left ventricle diastolic function is an important part of echocardiographic examination and consists of analysis of mitral inflow, pulmonary vein flow, as well as mitral inflow propagation velocity and diastolic velocities of mitral annulus movement. Diastolic dysfunction is a common cause of heart failure, especially in elderly patients. In this article, various methods of left ventricle diastolic function assessment were presented with reference to current guidelines of diagnosis of diastolic dysfunction and heart failure...
August 2013: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/23360845/resistin-and-leptin-levels-in-acromegaly-lack-of-correlation-with-echocardiographic-findings
#10
Sabriye Gurbulak, Güzin Fidan Yaylali, Emrah Yerlikaya, Fulya Akin, Senay Topsakal, Halil Tanrverdi, Beyza Akdag, Ali Rza Aslan
PURPOSE: To find out how resistin and leptin levels were affected in patients with acromegaly and whether there is a relation between resistin levels and cardiac parameters. We also aimed to investigate whether resistin and leptin may be a link between insulin resistance and cardiac functions as well as these affected cardiac functions in the patients with acromegaly. METHODS: We included 30 subjects (15 men and 15 women) who had a diagnosis of acromegaly and 30 healthy (10 men and 20 women) subjects...
March 2013: Journal of Investigative Medicine: the Official Publication of the American Federation for Clinical Research
https://www.readbyqxmd.com/read/23324920/-assessment-of-diastolic-heart-failure-current-role-of-echocardiography
#11
REVIEW
F Weidemann, M Niemann, S Herrmann, G Ertl, S Störk
Diastolic heart failure, also known as heart failure with preserved left ventricular ejection fraction (HF-pEF), is responsible for approximately 50 % of all heart failure cases. According to current guidelines the diagnosis HF-pEF requires three criteria: (1) signs or symptoms of heart failure, (2) presence of a normal left ventricular ejection fraction and (3) evidence of diastolic dysfunction. Echocardiography is the diagnostic modality of choice, especially after ruling out other causes of dyspnea, such as pulmonary diseases, heart rhythm disturbances and volume overload...
February 2013: Herz
https://www.readbyqxmd.com/read/23283359/early-and-late-systolic-wall-stress-differentially-relate-to-myocardial-contraction-and-relaxation-in-middle-aged-adults-the-asklepios-study
#12
Julio A Chirinos, Patrick Segers, Ernst R Rietzschel, Marc L De Buyzere, Muhammad W Raja, Tom Claessens, Dirk De Bacquer, Martin St John Sutton, Thierry C Gillebert
Experimental studies implicate late systolic load as a determinant of impaired left-ventricular relaxation. We aimed to assess the relationship between the myocardial loading sequence and left-ventricular contraction and relaxation. Time-resolved central pressure and time-resolved left-ventricular geometry were measured with carotid tonometry and speckle-tracking echocardiography, respectively, for computation of time-resolved ejection-phase myocardial wall stress (EP-MWS) among 1214 middle-aged adults without manifest cardiovascular disease from the general population...
February 2013: Hypertension
https://www.readbyqxmd.com/read/23074579/doppler-tissue-imaging-a-non-invasive-technique-for-estimation-of-left-ventricular-end-diastolic-pressure-in-severe-mitral-regurgitation
#13
Roya Sattarzadeh Badkoubeh, Yaser Jenab, Arezou Zoroufian, Mojtaba Salarifar
BACKGROUND: Conventional Doppler measurements, including mitral inflow and pulmonary venous flow, are used to estimate left ventricular end diastolic pressure (LVEDP). However, these parameters have limitations in predicting LVEDP among patients with mitral regurgitation. This study sought to establish whether the correlation between measurements derived from tissue Doppler echocardiography and LVEDP remains valid in the setting of severe mitral regurgitation. METHODS: THIRTY PATIENTS (MEAN AGE: 57...
2010: Journal of Tehran Heart Center
https://www.readbyqxmd.com/read/22661507/effect-of-healthy-aging-on-left-ventricular-relaxation-and-diastolic-suction
#14
COMPARATIVE STUDY
Graeme Carrick-Ranson, Jeffrey L Hastings, Paul S Bhella, Shigeki Shibata, Naoki Fujimoto, M Dean Palmer, Kara Boyd, Benjamin D Levine
Doppler ultrasound measures of left ventricular (LV) active relaxation and diastolic suction are slowed with healthy aging. It is unclear to what extent these changes are related to alterations in intrinsic LV properties and/or cardiovascular loading conditions. Seventy carefully screened individuals (38 female, 32 male) aged 21-77 were recruited into four age groups (young: <35; early middle age: 35-49; late middle age: 50-64 and seniors: ≥65 yr). Pulmonary capillary wedge pressure (PCWP), stroke volume, LV end-diastolic volume, and Doppler measures of LV diastolic filling were collected at multiple loading conditions, including supine baseline, lower body negative pressure to reduce LV filling, and saline infusion to increase LV filling...
August 1, 2012: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/22530347/evaluation-of-echocardiographic-indices-for-the-prediction-of-major-adverse-events-during-long-term-follow-up-in-chronic-hemodialysis-patients-with-normal-left-ventricular-ejection-fraction
#15
U Dogan, K Ozdemir, H Akilli, A Aribas, S Turk
BACKGROUND: Cardiovascular disease is the leading cause of mortality in endstage renal failure. Prognostic role of echocardiography has not been fully elucidated in chronic hemodialysis patients. AIM: To assess the ability of Doppler echocardiographic parameters of left ventricular (LV) diastolic function along with conventional echocardiographic indices to predict long-term adverse major events in chronic hemodialysis patients with normal LV ejection fraction (EF)...
March 2012: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/21976188/new-insights-into-weaning-from-mechanical-ventilation-left-ventricular-diastolic-dysfunction-is-a-key-player
#16
John Papanikolaou, Demosthenes Makris, Theodosios Saranteas, Dimitrios Karakitsos, Elias Zintzaras, Andreas Karabinis, Georgia Kostopanagiotou, Epaminondas Zakynthinos
PURPOSE: To investigate the diagnostic performance of Doppler echocardiography (DE) in predicting the outcome of weaning from mechanical ventilation in patients without overt cardiac disease. METHODS: Fifty critical care noncardiac patients who fulfilled predetermined criteria for weaning underwent DE before and at the end of spontaneous breathing trial (pre-SBT/end-SBT, respectively). "Conventional" mitral inflow analysis and "advanced" DE parameters [tissue Doppler imaging (TDI)-derived mitral/tricuspid annular velocities and color M-mode Doppler velocity of propagation (V p)] were used to assess left ventricular (LV) diastolic function/filling pressures...
December 2011: Intensive Care Medicine
https://www.readbyqxmd.com/read/21962449/improvement-in-the-assessment-of-diastolic-function-in-a-clinical-echocardiography-laboratory-following-implementation-of-a-quality-improvement-initiative
#17
Thomas V Johnson, John D Symanski, Sanjay R Patel, Geoffrey A Rose
BACKGROUND: The aim of this study was to demonstrate improvement in the characterization of diastolic function in the routine practice of a clinical echocardiography laboratory after the implementation of a quality improvement initiative. The echocardiographic analysis of left ventricular (LV) diastolic dysfunction is an inherently complex process involving the integration of multiple indices for accurate assessment. METHODS: A baseline survey of 50 randomly chosen echocardiographic studies was reviewed for the accuracy of diastolic function assessment...
November 2011: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/21881682/colour-m-mode-superiority-in-evaluation-of-improvement-in-myocardial-performance-indices-following-successful-percutaneous-coronary-intervention-pci
#18
R Sattarzadeh, M Maleki, A Jamalian, A Amirpour, A Firuzi, N Samiei, M Esmaeilzadeh, A Ghorbani, A Tavoosi
AIM: This study aimed at evaluating the early effects of successful elective percutaneous coronary intervention (PCI) on systolic and diastolic function. METHODS: We consecutively studied the systolic and diastolic function in 21 patients with stable coronary artery disease (CAD) and left ventricular ejection fraction (LVEF) > 40% before and 48 hours after successful elective PCI. RESULTS: Tei index and systolic indices (LVEF, regional wall motion abnormality score, tricuspid annular plane systolic excursion and peak systolic velocity of mitral and tricuspid annulus) did not change significantly...
July 2011: Cardiovascular Journal of Africa
https://www.readbyqxmd.com/read/21705996/echocardiography-future-developments-what-is-diastole-and-how-to-assess-it-impaired-left-ventricular-systolic-function
#19
REVIEW
C Luers, B Maisch
Epidemiologic data show that diastolic heart failure is responsible for 38% to 54% of all heart failure cases. Left ventricular diastolic function can be characterized invasively in the catheter laboratory and non-invasively by echocardiography. Although echocardiography does not directly measure hemodynamic parameters, it is the most practical routine clinical approach for the evaluation of left ventricular diastolic function with given clinical and experimental evidence supporting its use as well as its safety, versatility, and portability...
August 2011: Minerva Cardioangiologica
https://www.readbyqxmd.com/read/21392608/a-comparison-of-echocardiographic-measures-of-diastolic-function-for-predicting-all-cause-mortality-in-a-predominantly-male-population
#20
COMPARATIVE STUDY
Patricia K Nguyen, Ingela Schnittger, Paul A Heidenreich
BACKGROUND: Prior studies demonstrating the prognostic value of echocardiographic measures of diastolic function have been limited by sample size, have included only select clinical populations, and have not incorporated newer measures of diastolic function nor determined their independent prognostic value. The objective of this study is to determine the independent prognostic value of established and new echocardiographic parameters of diastolic function. METHODS: We included 3,604 consecutive patients referred to 1 of 3 echocardiography laboratories over a 2-year period...
March 2011: American Heart Journal
keyword
keyword
102842
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"