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It has recently been suggested that mean arterial pressure provides a reliable estimate of dicrotic notch pressure in infants and children. The aim of the present study was twofold: (1) to investigate the relation existing between aortic dicrotic notch pressure and both the steady and pulsed...
Dobutomine stress echocardiography (DSE) was performed after coronary angiography to evaluate the need to perform percutaneous transluminal coronary angioplasty (PTCA) for 46 stenoses of moderate severity (50% to 80%) in 46 patients. Patients were divided into 2 groups according to the DSE...
Evaluation of the St. Jude Medical (SJM) valve in the mitral position with Doppler echocardiography has usually involved the use of gradients across the valve and the application of the pressure half-time (PHT) method to derive a mitral valve area. The purpose of this study was, first, to...
The objective of this study was to evaluate the prognostic accuracy and usefulness of neurohumoral determination as a risk stratification tool after acute myocardial infarction (AMI) by comparing the long-term prognostic value of subacute neurohumoral measurements with other established...
Stentless porcine xenografts (SPXs) implanted in the aortic position have potential hemodynamic advantages over traditional valve prostheses because of the lack of a rigid stent. Twenty-four patients (mean age 59 years) who underwent aortic valve replacement with SPXs were studied by...
This study was undertaken to assess the value of sublingual nitroglycerin administration during upright tilt as a simple practical test for the diagnosis of vasovagal syncope. To this purpose, 235 patients with syncope of unknown origin and no evidence of organic heart disease (110 men, mean age...
The aim of this study was to investigate the influence of mitral regurgitation (MR) on left atrial (LA) thrombus formation and spontaneous echocardiographic contrast in patients with rheumatic mitral valve disease. LA thrombus and spontaneous contrast are considered risk factors for embolic...
Gender-related differences in outcome after myocardial infarction may relate to biased treatment allocation. To address this concern we analyzed 573 patients presenting with ST-segment elevation acute myocardial infarction (AMI), and treated within 6 hours with reperfusion therapy. Two-hundred...
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