Stability of left ventricular longitudinal and circumferential deformation over time and standard loading conditions
نویسندگان
چکیده
منابع مشابه
Preserved left ventricular twist and circumferential deformation, but depressed longitudinal and radial deformation in patients with diastolic heart failure.
AIMS To examine myocardial deformation and rotation in patients with heart failure, and elucidate the underlying mechanisms that account for normal ejection fraction (EF) in patients with diastolic heart failure (DHF). METHODS AND RESULTS Fifty consecutive patients presenting with congestive heart failure (age: 58 +/- 16 years) underwent simultaneous right heart catheterization and transthora...
متن کاملLongitudinal and circumferential strain rate, left ventricular remodeling, and prognosis after myocardial infarction.
OBJECTIVES We sought to investigate the clinical prognostic value of longitudinal and circumferential strain (S) and strain rate (SR) in patients after high-risk myocardial infarction (MI). BACKGROUND Left ventricular (LV) contractile performance after MI is an important predictor of long-term outcome. Tissue deformation imaging might more closely reflect myocardial contractility than traditi...
متن کاملLeft ventricular twist, but not circumferential-longitudinal shear angle, increases with increasing age in normal subjects
Background Left Ventricular (LV) twist, defined as the difference in rotation between the apex and the base, has recently been suggested as a diagnostic imaging biomarker for LV dysfunction [1]. Increasing age is associated with an increase in apical rotation, which leads to an increase LV twist [2-4]. Recently, it has been suggested that LV circumferential-longitudinal shear angle (CL-shear an...
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منطقه ی آسیای مرکزی وقفقاز به عنوان منطقه ای تاریخی و به دلیل دارا بودن ذخایر عظیم هیدرو کربنی از اهمیت ویژه ای برخوردار است. کشورهای این منطقه از عوامل عمده ی بی ثباتی نظیر عوامل جغرافیایی، اقتصادی، امنیتی، اجتماعی و سیاسی رنج می برند. پس از فروپاشی اتحاد جماهیر شوروی کشورهای منطقه از نعمت استقلال ناخواسته ای برخوردار شدند که مشکلات فوق را برای آن ها چندین برابر می کرد. در این روند برخی از این...
15 صفحه اولAn approach to analysis of left ventricular diastolic function and loading conditions in the echocardiography laboratory.
Nabhan Alnabhan, M.D.,∗ Edmund Kenneth Kerut, M.D.,† Stephen A. Geraci, M.D.,∗‡ Michael R. McMullan, M.D.,∗ and Ervin Fox, M.D.∗ ∗Division of Cardiology, University of Mississippi, School of Medicine, Jackson, Mississippi, †Heart Clinic of Louisiana, Marrero, Louisiana, Departments of Physiology and Pharmacology, LSU Health Sciences Center, New Orleans, Louisiana, and ‡G. V. (Sonny) Montgomery ...
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ژورنال
عنوان ژورنال: European Heart Journal - Cardiovascular Imaging
سال: 2016
ISSN: 2047-2404,2047-2412
DOI: 10.1093/ehjci/jew135