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Pulmonary regurgitation

…of Fallot Marfan syndrome Takayasu's arteritis Iatrogenic (e.g complication of catheterization) Congenital dysplasia/aplasia of the pulmonary valve Idiopathic pulmonary artery dilation Pulmonary…

Mitral valve stenosis

…valve disease, which results in changes in the pressure volume relationships in the ventricle and the atrium. Pressure and/or volume overload causes dilation of…

Pulmonary Embolism (PE)

…patients with pulmonary embolism or deep vein thrombosis experience a second thrombotic event within 10 years ( Goldhaber et al, Kearon et al ). Epidemiology of pulmonary…

Mitral regurgitation

…prolapse of P2 (Figure 1). Myocardial ischemia affecting the papillary muscles or the connected myocardium may cause mitral prolapse, and thus regurgitation. Ischemia manifests with…

Tricuspid regurgitation (TR/TI)

…Myxomatous degeneration. Rheumatic heart disease. Dilatation of the right ventricle. Dilatation of the right atrium. Pulmonary hypertension. Left to right shunt. Right ventricular dysfunction due…

Aortic regurgitation

…results in pulmonary hypertension and pulmonary edema. Table 1. Causes of aortic regurgitation Bicuspid aortic valve Rheumatic heart disease Calcified aortic valves Idiopathic aortic dilatation …

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

…III and aVF (with QRS duration <0.12 seconds), provided that other causes of right axis deviation have been excluded. Causes of left axis deviation…

The electrical axis of the heart (ECG axis)

…III and aVF (with QRS duration <0.12 seconds), provided that other causes of right axis deviation have been excluded. Causes of left axis deviation…

Right ventricular hypertrophy (RVH): ECG criteria & clinical characteristics

…echocardiography. Causes of right ventricular hypertrophy Lung disease (with increased pulmonary vascular resistance), congenital heart disease (transposition of the great arteries, pulmonary valve stenosis, atrial…

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

…mitrale, because mitral valve disease is a common cause (Figure 1). The duration of the P wave will exceed 120 milliseconds in lead II. Biatrial…

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