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The rapid technological developments of the past decade and the changes in echocardiographic practice brought about by these developments have resulted in the need for updated recommendations to the previously published guidelines for cardiac chamber quantification, which was the goal of the joint writing group assembled by the American Society of(More)
Quantification of cardiac chamber size, ventricular mass and function ranks among the most clinically important and most frequently requested tasks of echocardiography. Over the last decades, echocardiographic methods and techniques have improved and expanded dramatically, due to the introduction of higher frequency transducers, harmonic imaging, fully(More)
The use of ultrasound has developed over the last 50 years into an indispensable first-line test for the cardiac evaluation of symptomatic patients. The technologic miniaturization and improvement in transducer technology, as well as the implementation of educational curriculum changes in residency training programs and specialty practice, have facilitated(More)
OBJECTIVES We sought to compare the value of serial assessment with hand-carried ultrasound (HCU) of the inferior vena cava (IVC) with brain natriuretic peptide (BNP) to identify patients with acute decompensated heart failure (ADHF) who will be readmitted or seek emergency department treatment after hospital discharge. BACKGROUND Congestive heart failure(More)
BACKGROUND Hand-carried ultrasound (HCU) devices used by cardiologists as extensions of the physical examination have been shown to improve the accuracy of bedside diagnoses. We tested the feasibility of teaching medical students to use HCU devices to make bedside cardiac diagnoses and compared the accuracy of their HCU and physical examinations. METHODS(More)
BACKGROUND The rapid detection of left ventricular systolic dysfunction (LVSD) is an important step in the clinical management of patients admitted with acute decompensated heart failure, because it allows the initiation of treatment specific to LVSD and avoidance of contraindicated therapies. The aim of this study was to determine whether internal medicine(More)
OBJECTIVES We sought to demonstrate that direct current (DC) shocks to the heart generate free radicals. BACKGROUND Although it is a lifesaving maneuver, defibrillation is known to have myocardial toxicity. The mechanism of this toxicity is unknown. If DC shocks generate free radicals, free radicals could be a mechanism of myocardial injury. METHODS In(More)
OBJECTIVES We investigated the usefulness of echocardiographic contrast perfusion imaging in differentiating cardiac masses. BACKGROUND Two-dimensional echocardiography is the primary diagnostic modality for cardiac masses. However, differentiation between the different types of cardiac masses may be difficult at times. We hypothesized that(More)
Estimation of right atrial pressure (RAP) using echocardiographic measurement of the inferior vena caval (IVC) size along with its respirophasic variation is commonly performed despite the paucity of data that critically evaluates this technique. In this study, we systematically evaluated echocardiographic imaging of the IVC for estimation of RAP in 102(More)