Andrew Antonopoulos

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We studied atrial arrhythmias during the first 12 h of admission to the hospital in 266 consecutive patients with acute myocardial infarction who subsequently underwent coronary angiography. Ten patients developed atrial fibrillation, one atrial flutter, and one supraventricular tachycardia. Another five developed sinus dysrhythmias. All of the above(More)
A growing body of data support the beneficial effects of angiotensin-converting enzyme inhibitors in the prevention of cardiac enlargement and improvement of left ventricular function in patients with acute myocardial infarction. However, very little information exists about the direct effect of increased afterload on cardiac performance in these patients(More)
To determine the role of the sinus node artery and the clinical course in postmyocardial infarction sinus node dysfunction, 27 patients with acute inferior myocardial infarction and single-vessel coronary artery disease were studied. In 13 patients (group 1) the infarct-related coronary artery was occluded proximally and in 14 (group 2) distally to the site(More)
We studied 266 consecutive patients with acute myocardial infarction to assess the significance of electrocardiographic "mirror images". Ninety-four (group A) had anterior wall and 132 (group B) had inferior wall infarction. Thirty-one group A patients had stenosis of the right coronary artery greater than 85% in diameter (subgroup A1), and 63 either had a(More)
To determine the effects of captopril on left ventricular volumes and function in patients with and without depressed ventricular function following acute myocardial infarction (AMI) we studied 78 patients with a first Q wave AMI and no clinical evidence of heart failure. All patients underwent radionuclide ventriculography (RVG) on the 4th day after(More)
This study was designed to assess the usefulness of the changes in left ventricular (LV) systolic time intervals after phenylephrine administration for detecting high-risk patients soon after acute myocardial infarction by correlation with the angiographic and ventriculographic findings. The procedure was performed in 76 consecutive patients (group I) on(More)
The significance of angina pectoris in patients with aortic valve disease (AVD) and the need for coronary arteriography before valve replacement are controversial. The history of chest pain and coronary arteriographic findings were reviewed in 333 patients > or = forty years old, with AVD: 142 with aortic stenosis, 87 with mixed AVD and 104 with aortic(More)
We are reporting a case of catastrophic antiphospholipid syndrome (CAPS) in an adult female manifested with severe hypertension followed by adrenal haemorrhagic infarction and adult respiratory distress syndrome. Adrenal involvement appears to be exceedingly high in CAPS and adult respiratory distress syndrome (ARDS) is the prevailing pulmonary(More)
To define coronary angiographic characteristics of patients experiencing early primary ventricular fibrillation (VF) in the acute phase of myocardial infarction we studied 266 consecutive patients without clinical evidence of heart failure. Twenty-six patients (group 1) experienced early (< 12 h from the onset of symptoms of myocardial infarction) primary(More)