Miguel Angel Quiñones

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OBJECTIVES This investigation was designed 1) to assess whether the early diastolic velocity of the mitral annulus (Ea) obtained with Doppler tissue imaging (DTI) behaves as a preload-independent index of left ventricular (LV) relaxation; and 2) to evaluate the relation of the mitral E/Ea ratio to LV filling pressures. BACKGROUND Recent observations(More)
A report from the American Society of Echocardiography’s Nomenclature and Standards Committee and The Task Force on Valvular Regurgitation, developed in conjunction with the American College of Cardiology Echocardiography Committee, The Cardiac Imaging Committee Council on Clinical Cardiology, the American Heart Association, and the European Society of(More)
Doppler echocardiography is a noninvasive technique that provides unique hemodynamic information otherwise not available without invasive monitoring.The accuracy of the results depends,however, on meticulous technique and an understanding of Doppler principles and flow dynamics. This document provides recommendations based on the scientific literature and a(More)
  • Douglas Peter Zipes, A John Camm, +36 authors José Luis Zamorano
  • Journal of the American College of Cardiology
  • 2006
WRITING COMMITTEE MEMBERS Douglas P. Zipes, MD, MACC, FAHA, FESC, Co-Chair; A. John Camm, MD, FACC, FAHA, FESC, Co-Chair; Martin Borggrefe, MD, FESC; Alfred E. Buxton, MD, FACC, FAHA; Bernard Chaitman, MD, FACC, FAHA; Martin Fromer, MD; Gabriel Gregoratos, MD, FACC, FAHA; George Klein, MD, FACC; Arthur J. Moss, MD, FACC, FAHA†; Robert J. Myerburg, MD, FACC,(More)
Writing Committee Members, Douglas P. Zipes, MD, MACC, FAHA, FESC, Co-Chair, A. John Camm, MD, FACC, FAHA, FESC, Co-Chair, Martin Borggrefe, MD, FESC, Alfred E. Buxton, MD, FACC, FAHA, Bernard Chaitman, MD, FACC, FAHA, Martin Fromer, MD, Gabriel Gregoratos, MD, FACC, FAHA, George Klein, MD, FACC, Arthur J. Moss, MD, FACC, FAHA Robert J. Myerburg, MD, FACC,(More)
BACKGROUND Idiopathic dilated cardiomyopathy, of which approximately 20% of cases are familial (FDCM), is a primary myocardial disorder characterized by ventricular dilatation and impaired systolic function. It is a common cause of heart failure and the need for cardiac transplantation. Although 6 chromosomal loci responsible for autosomal dominant FDCM(More)
Since the introduction of transesophageal echocardiography (TEE) to the operating room in the early 1980s,1-4 its effectiveness as a clinical monitor to assist in the hemodynamic management of patients during general anesthesia and its reliability to make intraoperative diagnoses during cardiac operations has been well established.5-26 In recognition of the(More)
Diabetes is an independent predictor of morbidity and mortality in patients with symptomatic heart failure, patients with asymptomatic left ventricular dysfunction (defined as an ejection fraction of 35% or less), and in a broader registry population with less stringent entry criteria. Although the SOLVD Trials made a major clinical contribution by proving(More)
BACKGROUND The variability of the phenotypic expression of left ventricular hypertrophy (LVH) in patients with hypertrophic cardiomyopathy (HCM) indicates a potential role for additional modifying genes. Variants of angiotensin-I converting enzyme (ACE) gene have been implicated in cardiac hypertrophy. To assess whether ACE genotypes influence the(More)
BACKGROUND Early transmitral velocity/tissue Doppler mitral annular early diastolic velocity (E/Ea) and B-type natriuretic peptide (BNP) have been correlated with left ventricular filling pressures, yet there are no data on how these 2 estimates of left ventricular filling pressures compare. METHODS AND RESULTS Patients admitted to intensive care(More)