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ECG manifestations of left main coronary artery (LMCA) occlusion and critical stenosis

…some patients present with severe LMCA stenosis exacerbated by other conditions, and these must also be recognized. Prompt identification of LMCA involvement is therefore critical…

Mitral valve stenosis

…stenosis after mitral valve surgery Myxoma obstructing outflow from the left atrium Atrial thrombus obstructing atrial outflow Endocarditis Hemodynamic consequences of mitral stenosis Mitral stenosis…

Pulmonary stenosis

…40 mm Hg in older and obese patients. References Baumgartner et al : Echocardiographic assessment of valve stenosis: EAE/ASE Recommendations for Clinical Practice (2009. JASE).

Left Main Coronary Artery Disease: Revascularisation Strategy

…to patients with symptoms. Current guidance supports revascularisation for significant left main stenosis irrespective of symptomatic status or the documented ischaemic burden. In chronic coronary…

ECG in left ventricular hypertrophy (LVH): criteria and implications

…left sided leads. Left ventricular hypertrophy (LVH) The most common causes of left ventricular hypertrophy are aortic stenosis, aortic regurgitation, hypertension, cardiomyopathy and coarctation of…

Aortic stenosis

…the early stages of aortic stenosis, stroke volume becomes smaller. Reduced stroke volumes and increased resistance in the valve result in compensatory left ventricular hypertrophy…

Cardiac thromboembolism: cardiac sources of embolism

…tumors Atherosclerosis of the aorta LOW EMBOLIC POTENTIAL SEP (Spontaneous Echocardiographic Potential) Left ventricular aneurysm without thrombus Prolapse of mitral valve Aortic stenosis with calcification…

The electrical axis of the heart (ECG axis)

…contraction. The direction of the depolarization (and thus the electrical axis) is generally alongside the heart's longitudinal axis (to the left and downwards). Figure…

The electrical axis of the heart (heart axis): ECG & physiology

…I and II. Heart axis deviation: right axis deviation (RAD) and left axis deviation (LAD) Causes of right axis deviation Normal in newborns. Right ventricular…

Left atrial enlargement (P mitrale) & right atrial enlargement (P pulmonale) on ECG

…will be enhanced. Enlargement of the left and right atria causes typical P wave changes in lead II and lead V1 (Figure 1, second and…

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