OBJECTIVE Cardiac syndrome X (CSX) is characterised by typical exertional chest pain, a positive response to exercise testing, and a normal coronary angiography. The relationship of CSX with myocardial fibrosis and ischemia has been clearly demonstrated in previous studies. In addition, fragmented QRS (fQRS) has been reported in the literature as an indicator of myocardial fibrosis. The aim of ...

BACKGROUND Chronic stable angina is a common condition, but considerable differences exist in the likelihood of acute coronary events such as CHD death, non-fatal myocardial infarction (MI) and unstable angina between individual patients. Effective risk prediction is necessary for optimum management. The aim of this study was to identify clinical features and non-invasive test parameters associ...

DURING a recent study of the relationship between arterial pressure and exertional angina pectoris in hypertensive patients, it was observed that one patient who had hypokalemia but a normal control electrocardiogram exhibited electrocardiographic signs typical of potassium deficit following exercise. Because of this incidental observation, further investigation was carried out to evaluate the ...

Background: Global Longitudinal Strain (GLS) measured by 2D speckle-tracking strain echocardiography (2D-STE) can detect impaired longitudinal left ventricle (LV) function at rest which is associated with significant coronary artery stenosis. Objective: may be used to predict the presence, extent and severity of CAD according angiographic findings in patients chronic stable angina. Methods: 2D-...

SUMMARY The relationships among angina pectoris, stress tests, and arteriography are complex. The majority of patients with angina pectoris can be adequately diagnosed by a careful history. Considerable attention to detail and repeated questioning is often necessary before the pain syndrome can be accurately classified. The resting electro-cardiogram is of limited value in the diagnosis despite...

To study the vasomotility of normal and diseased coronary arteries during dynamic exercise, symptom-limited supine bicycle exercise during cardiac catheterization was performed by 18 patients with classic angina pectoris. The cardiovascular response was assessed by hemodynamic measurements and computer-assisted determination of normal and stenotic coronary artery luminal areas from biplane coro...

Eight patients with a diagnosis of atherosclerotic heart disease and a history of typical angina pectoris, uncomplicated by cardiac dilatation or heart failure, were studied by means of standardized, symptom-limited treadmill exercise test. Repeatability of such testing was determined during two control tests 1-1.5 hours apart. From two to six days later, the same patients performed two treadmi...

Correlative studies of the resting ballistocardiogram and the ability to expend energy in cardiac l)a-tients indicate that the resting ballistocardiogram may be a useful tool in evaluating the functional or work capacity of a cardiac patient for rehabilitation purposes and vocational guidance, and may serve as a screening device for finding those cardiacs, other things being equal, who possess ...

DURING a recent study of the relationship between arterial pressure and exertional angina pectoris in hypertensive patients, it was observed that one patient who had hypokalemia but a normal control electrocardiogram exhibited electrocardiographic signs typical of potassium deficit following exercise. Because of this incidental observation, further investigation was carried out to evaluate the ...