stress-induced cardiomyopathy or takotsubo cardiomyopathy is a recently increasing diagnosed disease manifested by transient apical or mid left ventricular dilation and dysfunction. this sign is similar to acute myocardial infarction but without significant coronary artery stenosis. there are important and essential differences between takotsubo cardiomyopathy and acute myocardial infarction in...

Changes in left ventricular (LV) volumes and ejection fraction between rest and maximal supine exercise were evaluated in 11 patients who had had four epicardial markers placed during coronary artery surgery. After calibrating marker distances with respect to volume (r = 0.92-0.99) over one cardiac cycle for each patient, regression equations were used to compute LV volume from marker measureme...

Background: Patients with beta-thalessemia major present with severe anemia and need continous transfusion therapy. An important complication of beta-thalessemia major is iron deposition in cardiac tissue, resulting in fibrosis and dysfunction. Cardiac involvement is the major cause of death in beta-thalessemia major. The purpose of this study was to assess cardiac disease patients with bet...

In 15 patients with tricuspid atresia and one with tricuspid stenosis the left ventricular ejection fraction was measured by equilibrium gated radionuclide angiography and the results compared with those from a control group of 16 patients. The patients with tricuspid atresia had a significantly depressed ejection fraction. Those who had a surgical shunt or who had had pulmonary artery banding ...

PURPOSE Recent studies have demonstrated that ventricular rate control is a viable treatment strategy for patients in atrial fibrillation (AF). The purpose of this study was to determine whether or not the benefits of coupled pacing (ie, a proposed rate control therapy) could be used during persistent AF. DESCRIPTION Six mongrel dogs were chronically implanted with endocardial atrial and vent...

This investigation was designed to determine the role of echocardiography in the assessment of left ventricular function in patients with significant coronary arterial disease. Satisfactory echocardiograms were obtained in 43 patients with coronary arterial disease. The ventriculographic ejection fraction was determined by the area length method. The echocardiographic left ventricular end-diast...

To assess the prognostic importance of resting left ventricular function in survivors of acute myocardial infarction with pulmonary edema, we retrospectively identified 39 consecutive patients who presented with acute pulmonary edema and myocardial infarction. Sixteen patients had radionuclide ejection fractions 10 +/- 2 days postinfarction of greater than 0.45 (group A, mean 0.55 +/- 0.06), an...

the turkmen horse is one of the oldest and purest breeds in the world. there is no information with regards to the normal echocardiographic parameters of this horse regarding to cardiac diseases. pulsed-wave (pw) doppler echocardiography was performed on 42 clinically normal 3- to 15-year-old racing turkmen horses. there were 26 stallions and 16 mares. the left ventricular isovolumetric contrac...

Background: Study the correlation between the left ventricular end diastolic volume (LVEDV), ejection fraction (EF) and the development of arrhythmia. Patients and methods: Two hundreds patients with documented acute coronary syndrome and myocardial infection with dysrhythmia documented by ECG and holter monitoring assessed at the cardiac department at Baghdad teaching hospital over the period ...