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https://www.readbyqxmd.com/read/27762243/echo-for-diastology
#1
Candice Morrissey
Diastolic dysfunction ranging from impaired relaxation of the left ventricle to heart failure with preserved ejection fraction (HFpEF) is a common finding in the cardiac surgery population. It is important for the peri-operative echocardiographer to have a developed understanding of the pathophysiology of diastolic dysfunction and the echocardiographic features that determine where on the spectrum of diastolic function and dysfunction a patient lies.
October 2016: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/27539160/challenges-for-diastology-contributions-from-japanese-researchers
#2
Takashi Oki, Hirokazu Miyoshi, Yoshifumi Oishi, Yukio Mizuguchi, Arata Iuchi, Hirotsugu Yamada, Satoshi Nakatani
Diastology is a study to treat diastole of the heart. Transmitral flow and pulmonary venous flow velocities recorded by pulsed Doppler echocardiography provide more important information about left ventricular (LV) diastolic dysfunction [left atrial (LA)-LV coupling] than cardiac catheterization in clinical practice; however, these waveforms are influenced by loading conditions, particularly preload. The early diastolic mitral annular and LV wall motion indices measured by tissue Doppler echocardiography can evaluate LV relaxation abnormality and filling pressure by being relatively preload independent...
September 2016: Journal of Echocardiography
https://www.readbyqxmd.com/read/27495994/diastology-what-does-the-new-updated-guideline-do-for-you
#3
EDITORIAL
(no author information available yet)
No abstract text is available yet for this article.
August 2016: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/27441469/defining-and-refining-indications-for-transcatheter-pulmonary-valve-replacement-in-patients-with-repaired-tetralogy-of-fallot-contributions-from-anatomical-and-functional-imaging
#4
REVIEW
Justin T Tretter, Mark K Friedberg, Rachel M Wald, Doff B McElhinney
Transcatheter pulmonary valve replacement (TPVR) is an important treatment option in repaired tetralogy of Fallot (TOF) and right ventricular outflow tract (RVOT) dysfunction. Indications for timing of TPVR are extrapolated from surgical pulmonary valve replacement guidelines, which are themselves controversial as published evidence is scarce and expert opinion therefore prevails. We review current indications for PVR following TOF repair, focusing on those for TPVR specifically, and discuss anatomical and functional considerations as these pertain to determination of candidacy for TPVR...
October 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27085431/assessing-diastology-in-aortic-stenosis-should-we-stress-about-strain-rate
#5
EDITORIAL
Zoran B Popović, Paul C Cremer
No abstract text is available yet for this article.
May 2016: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/27013539/subtype-specific-interactions-and-prognosis-in-cardiac-amyloidosis
#6
Brett W Sperry, Michael N Vranian, Rory Hachamovitch, Hariom Joshi, Asad Ikram, Dermot Phelan, Mazen Hanna
BACKGROUND: Light chain (AL) and transthyretin (ATTR) amyloidosis have a similar effect on myocardial function but very different disease trajectories and survival. However, limited data are available evaluating subtype-specific predictors of outcomes in a large contemporary cohort. METHODS AND RESULTS: We retrospectively investigated 360 patients at the time of initial diagnosis of cardiac amyloidosis (191 AL and 169 ATTR) from 2002 to 2014. Clinical, laboratory, electrical, and morphologic covariates were evaluated based upon amyloid subtype...
March 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/26776572/echocardiographic-evaluation-of-left-ventricular-diastolic-function-in-cats-hemodynamic-determinants-and-pattern-recognition
#7
REVIEW
Karsten E Schober, Valérie Chetboul
Left ventricular (LV) diastolic dysfunction is highly prevalent in cats and is a functional hallmark of feline cardiomyopathy. The majority of cats with hypertrophic, restrictive, and dilated cardiomyopathy have echocardiographic evidence of abnormal LV filling, even during the occult (preclinical) phase. Moderate and severe diastolic dysfunction is an indicator of advanced myocardial disease, is associated with clinical signs including exercise intolerance and congestive heart failure, affects outcome, and influences therapeutic decisions...
December 2015: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/26058890/can-emergency-physicians-diagnose-and-correctly-classify-diastolic-dysfunction-using-bedside-echocardiography
#8
Robert R Ehrman, Frances M Russell, Asimul H Ansari, Bosko Margeta, Julie M Clary, Errick Christian, Karen S Cosby, John Bailitz
OBJECTIVES: The goal of this study was to determine if emergency physicians (EPs) can correctly perform a bedside diastology examination (DE) and correctly grade the level of diastolic function with minimal additional training in echocardiography beyond what is learned in residency. We hypothesize that EPs will be accurate at detecting and grading diastolic dysfunction (DD) when compared to a criterion standard interpretation by a cardiologist. METHODS: We conducted a prospective, observational study on a convenience sample of adult patients who presented to an urban emergency department with a chief concern of dyspnea...
September 2015: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/25119893/assessing-strategies-for-heart-failure-with-preserved-ejection-fraction-at-the-outpatient-clinic
#9
Antonio José Lagoeiro Jorge, Maria Luiza Garcia Rosa, Mario Luiz Ribeiro, Luiz Claudio Maluhy Fernandes, Monica Di Calafiori Freire, Dayse Silva Correia, Patrick Duarte Teixeira, Evandro Tinoco Mesquita
BACKGROUND: Heart failure with preserved ejection fraction (HFPEF) is the most common form of heart failure (HF), its diagnosis being a challenge to the outpatient clinic practice. OBJECTIVE: To describe and compare two strategies derived from algorithms of the European Society of Cardiology Diastology Guidelines for the diagnosis of HFPEF. METHODS: Cross-sectional study with 166 consecutive ambulatory patients (67.9±11.7 years; 72% of women)...
September 2014: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/24819985/impact-of-insulin-resistance-on-ventricular-function-in-pulmonary-arterial-hypertension
#10
COMPARATIVE STUDY
Nathan W Brunner, Mehdi Skhiri, Olga Fortenko, Andrew Hsi, Francois Haddad, Nayer Khazeni, Roham T Zamanian
BACKGROUND: Insulin resistance (IR) is an independent prognostic marker in pulmonary arterial hypertension (PAH), although the mechanism by which it engenders risk is unknown. We prospectively investigated the clinical, laboratory, hemodynamic, and echocardiographic characteristics of insulin-sensitive (IS) and IR patients with PAH. METHODS: This was a prospective cohort study including well-phenotyped patients with PAH proven at cardiac catheterization. Patients were classified as IS or IR on the basis of the well-validated triglyceride/high-density lipoprotein-cholesterol ratio...
July 2014: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/24400204/exercise-stress-echocardiography-in-patients-with-aortic-stenosis-impact-of-baseline-diastolic-dysfunction-and-functional-capacity-on-mortality-and-aortic-valve-replacement
#11
Andrew N Rassi, Wael Aljaroudi, Sahar Naderi, M Chadi Alraies, Venu Menon, Leonardo Rodriguez, Richard Grimm, Brian Griffin, Wael A Jaber
BACKGROUND: Patients with aortic stenosis (AS) often undergo exercise echocardiography. Diastolic dysfunction (DD) is frequently associated with AS but little is known about its impact on functional capacity (FC). We sought to determine the relationship between DD and FC and their impact on mortality and need for aortic valve replacement (AVR) in patients with AS. METHODS AND RESULTS: Data was analyzed for consecutive patients with any degree of AS undergoing exercise stress echocardiography between 2000 and 2010 at our institution...
December 2013: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/23786431/association-of-cardio-ankle-vascular-index-with-diastolic-heart-function-in-hypertensive-patients
#12
Hyungseop Kim, Hye-Soon Kim, Hyuck-Jun Yoon, Hyoung-Seob Park, Yun-Kyeong Cho, Chang-Wook Nam, Seung-Ho Hur, Yoon-Nyun Kim, Kwon-Bae Kim
Arterial stiffness is an important risk factor of impaired left ventricular (LV) diastolic function as well as systolic dysfunction. The cardio-ankle vascular index (CAVI) and the ambulatory arterial stiffness index (AASI) can evaluate arteriosclerosis. We analyzed the relationship between arterial stiffness and diastolic function, and then compared the two methodologies to assess which method could serve as a more informative tool for diastology. In total, 136 patients with hypertension underwent 24-h ambulatory blood pressure monitoring (ABPM) and echocardiography including ventricular arterial coupling (VAC)...
2014: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/23355342/impact-of-tachycardia-and-sympathetic-stimulation-by-cold-pressor-test-on-cardiac-diastology-and-arterial-function-in-elderly-females
#13
Jonas Johnson, Felicia Håkansson, Kambiz Shahgaldi, Aristomenis Manouras, Mikael Norman, Anders Sahlén
Abnormal vascular-ventricular coupling has been suggested to contribute to heart failure with preserved ejection fraction in elderly females. Failure to increase stroke volume (SV) during exercise occurs in parallel with dynamic changes in arterial physiology leading to increased afterload. Such adverse vascular reactivity during stress may reflect either sympathoexcitation or be due to tachycardia. We hypothesized that afterload elevation induces SV failure by transiently attenuating left ventricular relaxation, a phenomenon described in animal research...
April 1, 2013: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/23040116/increased-exhaled-nitric-oxide-levels-after-exercise-in-patients-with-chronic-systolic-heart-failure-with-pulmonary-venous-hypertension
#14
Andres Schuster, Akanksha Thakur, Zeneng Wang, Allen G Borowski, James D Thomas, W H Wilson Tang
BACKGROUND: Fractional exhaled nitric oxide (eNO) is recognized as a marker of pulmonary endothelial function. Oxidative stress is associated with systemic endothelial nitric oxide production, but its correlation with eNO in heart failure (HF) patients has not been described. Previous studies have reported increased eNO levels after exercise in symptomatic HF patients but decreased levels with pulmonary arterial hypertension. Our objective was to prospectively examine the potential myocardial and functional determinants of exercise-induced rise of eNO in HF...
October 2012: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/20659950/aortic-stiffness-independently-predicts-exercise-capacity-in-hypertrophic-cardiomyopathy-a-multimodality-imaging-study
#15
Bethany A Austin, Zoran B Popovic, Deborah H Kwon, Maran Thamilarasan, Thananya Boonyasirinant, Scott D Flamm, Harry M Lever, Milind Y Desai
BACKGROUND: Exercise capacity in patients with hypertrophic cardiomyopathy (HCM) varies despite similar diastolic dysfunction, left ventricular outflow tract (LVOT) obstruction and mitral regurgitation (MR). Pulse wave velocity (PWV), determined by cardiac magnetic resonance (CMR), measures aortic stiffness and is abnormal in patients with HCM in comparison with controls. OBJECTIVE: To determine potential clinical and imaging predictors of peak oxygen consumption (pVO(2)) in patients with HCM...
August 2010: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/20083070/delayed-hyper-enhancement-magnetic-resonance-imaging-provides-incremental-diagnostic-and-prognostic-utility-in-suspected-cardiac-amyloidosis
#16
COMPARATIVE STUDY
Bethany A Austin, W H Wilson Tang, E Rene Rodriguez, Carmela Tan, Scott D Flamm, David O Taylor, Randall C Starling, Milind Y Desai
OBJECTIVES: We sought to assess the diagnostic accuracy and incremental prognostic value of delayed hyper-enhancement cardiac magnetic resonance (DHE-CMR) compared with electrocardiographic and transthoracic echocardiographic (TTE) parameters in such patients. BACKGROUND: Utility of DHE-CMR in the diagnosis of patients with suspected cardiac amyloidosis (CA) has recently been demonstrated, but its incremental prognostic utility is unclear. METHODS: Forty-seven consecutive patients (mean age 63 years, 70% men, 55% New York Heart Association functional class >II) with suspected CA who underwent electrocardiography (ECG), TTE, DHE-CMR, and biopsy (38 endomyocardial, 9 extracardiac) were studied...
December 2009: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/19765059/left-ventricular-untwisting-in-restrictive-and-pseudorestrictive-left-ventricular-filling-novel-insights-into-diastology
#17
Bas M van Dalen, Osama I I Soliman, Wim B Vletter, Folkert J ten Cate, Marcel L Geleijnse
BACKGROUND: Conceptually, an ideal therapeutic agent should target the underlying mechanisms that cause left ventricular (LV) diastolic dysfunction. The objective of our study was to gain further insight into the mechanics of diastology by comparison of LV untwisting measured by speckle tracking echocardiography (STE) in young healthy adults with normal and "pseudorestrictive" LV filling, and dilated cardiomyopathy (DCM) patients with "true restrictive" LV filling. METHODS: The study comprised 20 healthy volunteers with a Doppler LV-inflow pattern compatible with restrictive LV filling but a diastolic early phase filling velocity/early diastolic velocity of the mitral annulus (E/Em) ratio <8 ("pseudorestrictive"), 20 for age and gender-matched healthy volunteers with normal LV filling and an E/Em ratio <8, and 10 DCM patients with "true restrictive" LV filling and an E/Em ratio >15...
March 2010: Echocardiography
https://www.readbyqxmd.com/read/19007595/evaluation-of-diffuse-myocardial-fibrosis-in-heart-failure-with-cardiac-magnetic-resonance-contrast-enhanced-t1-mapping
#18
Leah Iles, Heinz Pfluger, Arintaya Phrommintikul, Joshi Cherayath, Pelin Aksit, Sandeep N Gupta, David M Kaye, Andrew J Taylor
OBJECTIVES: The purpose of this study was to investigate a noninvasive method for quantifying diffuse myocardial fibrosis with cardiac magnetic resonance imaging (CMRI). BACKGROUND: Diffuse myocardial fibrosis is a fundamental process in pathologic remodeling in cardiomyopathy and is postulated to cause increased cardiac stiffness and poor clinical outcomes. Although regional fibrosis is easily imaged with cardiac magnetic resonance, there is currently no noninvasive method for quantifying diffuse myocardial fibrosis...
November 4, 2008: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/18490295/investigating-the-european-society-of-cardiology-diastology-guidelines-in-a-practical-scenario
#19
William T Emery, Irfan Jadavji, Jonathan B Choy, Richard A Lawrance
AIMS: Recently, the European Society of Cardiology (ESC) released a consensus statement for the diagnosis of heart failure with preserved ejection fraction (HFPEF). It state that E/e' > 15 or <8 clearly define those with or without HFPEF and that for those in the range 8-15, other parameters should be examined. METHODS AND RESULTS: We retrospectively analysed 1229 consecutive echocardiograms (57% males) for the utility of echocardiographic measures including left atrial volume index (LAVI), left ventricular mass index (LVMI), and pulmonary venous and mitral inflow Doppler...
September 2008: European Journal of Echocardiography
https://www.readbyqxmd.com/read/18279730/unlocking-the-mysteries-of-diastolic-function-deciphering-the-rosetta-stone-10-years-later
#20
REVIEW
Steven J Lester, A Jamil Tajik, Rick A Nishimura, Jae K Oh, Bijoy K Khandheria, James B Seward
It has now been a quarter of a century since the first description by Kitabatake and his associates of the use of echo-Doppler to characterize the transmitral flow velocity curves in various disease states. A decade ago we described the role of echocardiography in the "Evaluation of Diastolic Filling of Left Ventricle in Health and Disease: Doppler Echocardiography Is the Clinician's Rosetta Stone." Over the ensuing decade, advances in echo-Doppler have helped to further decipher the morphologic and physiological expression of cardiovascular disease and unlock additional mysteries of diastology...
February 19, 2008: Journal of the American College of Cardiology
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