The Experts below are selected from a list of 6642 Experts worldwide ranked by ideXlab platform
Gerard P Aurigemma - One of the best experts on this subject based on the ideXlab platform.
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recommendations on the use of Echocardiography in Adult hypertension a report from the european association of cardiovascular imaging eacvi and the american society of Echocardiography ase
Journal of The American Society of Echocardiography, 2015Co-Authors: Thomas H Marwick, Thierry C Gillebert, Gerard P Aurigemma, Julio A Chirinos, Genevieve Derumeaux, Maurizio Galderisi, John S Gottdiener, Brian Haluska, Elizabeth Ofili, Patrick SegersAbstract:Hypertension remains a major contributor to the global burden of disease. The measurement of blood pressure continues to have pitfalls related to both physiological aspects and acute variation. As the left ventricle (LV) remains one of the main target organs of hypertension, and echocardiographic measures of structure and function carry prognostic information in this setting, the development of a consensus position on the use of Echocardiography in this setting is important. Recent developments in the assessment of LV hypertrophy and LV systolic and diastolic function have prompted the preparation of this document. The focus of this work is on the cardiovascular responses to hypertension rather than the diagnosis of secondary hypertension. Sections address the pathophysiology of the cardiac and vascular responses to hypertension, measurement of LV mass, geometry, and function, as well as effects of treatment.
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acc aha ase 2003 guideline update for the clinical application of Echocardiography summary article a report of the american college of cardiology american heart association task force on practice guidelines acc aha ase committee to update the 1997 guidelines for the clinical application of Echocardiography
Journal of the American College of Cardiology, 2003Co-Authors: Melvin D Cheitlin, Gerard P Aurigemma, William F Armstrong, George A Beller, Fredrick Z Bierman, Jack L Davis, Pamela S Douglas, David P Faxon, Linda D Gillam, Thomas R KimballAbstract:The previous guideline for the use of Echocardiography was published in March 1997. Since that time, there have been significant advances in the technology of Echocardiography and growth in its clinical use and in the scientific evidence leading to recommendations for its proper use. Each section has been reviewed and updated in evidence tables, and where appropriate, changes have been made in recommendations. A new section on the use of intraoperative transesophageal Echocardiography (TEE) is being added to update the guidelines published by the American Society of Anesthesiologists and the Society of Cardiovascular Anesthesiologists. There are extensive revisions, especially of the sections on ischemic heart disease; congestive heart failure, cardiomyopathy, and assessment of left ventricular (LV) function; and screening and Echocardiography in the critically ill. There are new tables of evidence and extensive revisions in the ischemic heart disease evidence tables. Because of space limitations, only those sections and evidence tables with new recommendations will be printed in this summary article. Where there are minimal changes in a recommendation grouping, such as a change from Class IIa to Class I, only that change will be printed, not the entire set of recommendations. Advances for which the clinical applications are still being investigated, such as the use of myocardial contrast agents and three-dimensional Echocardiography, will not be discussed. The original recommendations of the 1997 guideline are based on a Medline search of the English literature from 1990 to May 1995. The original search yielded more than 3000 references, which the committee reviewed. For this guideline update, literature searching was conducted in Medline, EMBASE, Best Evidence, and the Cochrane Library for English-language meta-analyses and systematic reviews from 1995 through September 2001. Further searching was conducted for new clinical trials on the following topics: Echocardiography in Adult congenital heart disease, Echocardiography for evaluation …
Michael A Basnight - One of the best experts on this subject based on the ideXlab platform.
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estimation of left ventricular filling pressures using two dimensional and doppler Echocardiography in Adult patients with cardiac disease additional value of analyzing left atrial size left atrial ejection fraction and the difference in duration of pulmonary venous and mitral flow velocity at atrial contraction
Journal of the American College of Cardiology, 1993Co-Authors: Christopher P Appleton, James M Galloway, Mark S Gonzalez, Mohammed Gaballa, Michael A BasnightAbstract:Objectives. The purpose of this study was to determine whether left atrial size and ejection fraction are related to left ventricular filling pressures in patients with coronary artery disease. Background. in patients with coronary artery disease, left ventricular filling pressures can be estimated by using Doppler mitral and pulmonary venous flow velocity variables. However, because these flow velocities are age dependent, additional variables that indicate elevated left ventricular filling pressures are needed to increase diagnostic accuracy. Methods. Echocardiographic left atrial and Doppler mitral and pulmonary venous flow velocity variables were correlated with left ventricular filling pressures in 70 patients undergoing cardiac catheterization. Results. Left atrial sin and volumes were larger and left atrial ejection fractions were lower in patients with elevated left ventricular filling pressures. Mean pulmonary wedge pressure was related to mitral E/A wave velocity ratio (r = 0.72), left atrial minimal volume (r = 0.70), left atrial ejection fraction (r = −0.66) and atrial filling fraction (r = −0.66). Left ventricular end-diastolic and A wave pressures were related to the difierence in pulmonary venous and mitral A wave duration (both r = 0.77). By stepwise multilinear regression analysis, the ratio of mitral E to A wave velocity was the most important determinant of pulmonary wedge (r = 0.63) and left ventricular pre-A wave (r = 0.75) pressures, whereas the difference in pulmonary venous and mitral A wave duration was the most important variable for both left ventricular A wave (r = 0.75) and left ventricular end-diastolic (r = 0.80) pressures. The sensitivity of a left atrial minimal volume >40 cm3for identifying a mean pulmonary wedge pressure >12 mm Hg was 82%, with a specificity of 98%. Conclusions. Left atrial size, left atrial ejection fraction and the difference between mitral and pulmonary venous flow duration at atrial contraction are independent determinants of left ventricular filling pressures in patients with coronary artery disease. The additive value of left atrial size and Doppler variables in estimating filling pressures and the possibility that left atrial size may be less age dependent than other mitral and pulmonary venous flow velocity variables merit further investigation.
Thomas R Kimball - One of the best experts on this subject based on the ideXlab platform.
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acc aha ase 2003 guideline update for the clinical application of Echocardiography summary article a report of the american college of cardiology american heart association task force on practice guidelines acc aha ase committee to update the 1997 guidelines for the clinical application of Echocardiography
Journal of the American College of Cardiology, 2003Co-Authors: Melvin D Cheitlin, Gerard P Aurigemma, William F Armstrong, George A Beller, Fredrick Z Bierman, Jack L Davis, Pamela S Douglas, David P Faxon, Linda D Gillam, Thomas R KimballAbstract:The previous guideline for the use of Echocardiography was published in March 1997. Since that time, there have been significant advances in the technology of Echocardiography and growth in its clinical use and in the scientific evidence leading to recommendations for its proper use. Each section has been reviewed and updated in evidence tables, and where appropriate, changes have been made in recommendations. A new section on the use of intraoperative transesophageal Echocardiography (TEE) is being added to update the guidelines published by the American Society of Anesthesiologists and the Society of Cardiovascular Anesthesiologists. There are extensive revisions, especially of the sections on ischemic heart disease; congestive heart failure, cardiomyopathy, and assessment of left ventricular (LV) function; and screening and Echocardiography in the critically ill. There are new tables of evidence and extensive revisions in the ischemic heart disease evidence tables. Because of space limitations, only those sections and evidence tables with new recommendations will be printed in this summary article. Where there are minimal changes in a recommendation grouping, such as a change from Class IIa to Class I, only that change will be printed, not the entire set of recommendations. Advances for which the clinical applications are still being investigated, such as the use of myocardial contrast agents and three-dimensional Echocardiography, will not be discussed. The original recommendations of the 1997 guideline are based on a Medline search of the English literature from 1990 to May 1995. The original search yielded more than 3000 references, which the committee reviewed. For this guideline update, literature searching was conducted in Medline, EMBASE, Best Evidence, and the Cochrane Library for English-language meta-analyses and systematic reviews from 1995 through September 2001. Further searching was conducted for new clinical trials on the following topics: Echocardiography in Adult congenital heart disease, Echocardiography for evaluation …
Wilson Lam - One of the best experts on this subject based on the ideXlab platform.
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abstract 16879 utility of transthoracic Echocardiography in Adult patients with d transposition of the great arteries and atrial switch operation
Circulation, 2020Co-Authors: Ran Xiao, Christopher R Broda, Darren Harrison, Shivani R Aggarwal, Peter R Ermis, Angeline Opina, Wayne Franklin, Dhaval R Parekh, Wilson LamAbstract:introduction: Per 2018 ACC AHA Adult congenital heart disease guidelines, routine transthoracic Echocardiography (TTE) is recommended for follow-up in patients with d-transposition of the great art...
Christopher P Appleton - One of the best experts on this subject based on the ideXlab platform.
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estimation of left ventricular filling pressures using two dimensional and doppler Echocardiography in Adult patients with cardiac disease additional value of analyzing left atrial size left atrial ejection fraction and the difference in duration of pulmonary venous and mitral flow velocity at atrial contraction
Journal of the American College of Cardiology, 1993Co-Authors: Christopher P Appleton, James M Galloway, Mark S Gonzalez, Mohammed Gaballa, Michael A BasnightAbstract:Objectives. The purpose of this study was to determine whether left atrial size and ejection fraction are related to left ventricular filling pressures in patients with coronary artery disease. Background. in patients with coronary artery disease, left ventricular filling pressures can be estimated by using Doppler mitral and pulmonary venous flow velocity variables. However, because these flow velocities are age dependent, additional variables that indicate elevated left ventricular filling pressures are needed to increase diagnostic accuracy. Methods. Echocardiographic left atrial and Doppler mitral and pulmonary venous flow velocity variables were correlated with left ventricular filling pressures in 70 patients undergoing cardiac catheterization. Results. Left atrial sin and volumes were larger and left atrial ejection fractions were lower in patients with elevated left ventricular filling pressures. Mean pulmonary wedge pressure was related to mitral E/A wave velocity ratio (r = 0.72), left atrial minimal volume (r = 0.70), left atrial ejection fraction (r = −0.66) and atrial filling fraction (r = −0.66). Left ventricular end-diastolic and A wave pressures were related to the difierence in pulmonary venous and mitral A wave duration (both r = 0.77). By stepwise multilinear regression analysis, the ratio of mitral E to A wave velocity was the most important determinant of pulmonary wedge (r = 0.63) and left ventricular pre-A wave (r = 0.75) pressures, whereas the difference in pulmonary venous and mitral A wave duration was the most important variable for both left ventricular A wave (r = 0.75) and left ventricular end-diastolic (r = 0.80) pressures. The sensitivity of a left atrial minimal volume >40 cm3for identifying a mean pulmonary wedge pressure >12 mm Hg was 82%, with a specificity of 98%. Conclusions. Left atrial size, left atrial ejection fraction and the difference between mitral and pulmonary venous flow duration at atrial contraction are independent determinants of left ventricular filling pressures in patients with coronary artery disease. The additive value of left atrial size and Doppler variables in estimating filling pressures and the possibility that left atrial size may be less age dependent than other mitral and pulmonary venous flow velocity variables merit further investigation.
