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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

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

Nail procedures — paronychia, ingrown toenail and subungual haematoma

…herpetic whitlow ( never incise a herpetic whitlow ), subungual melanoma (a pigmented longitudinal nail band that is widening, with pigment in the cuticle — Hutchinson's sign…

Intravascular Imaging: IVUS and OCT for PCI Optimisation

…specificity for plaque and vessel wall pathology, intravascular imaging provides cross sectional and longitudinal information about the artery. The clinical value of these techniques rests…

Left ventricular diastolic function

…function. Systole is a complicated process involving three distinct ventricular contractions, namely longitudinal, radial and circumferential contraction (refer to Myocardial Mechanics and Figure 1). Diastole…

Right ventricular strain: definition, causes, echocardiography

…assessing the right half of the heart, it is important to familiarize yourself with the principles of hemodynamics and conditions prevailing on the right side…

Strain, strain rate and speckle tracking: Myocardial deformation

…highly efficient pumping mechanism. Figure 1A 2C. The orientation of myocardial muscle fibers results in longitudinal, radial and circumferential shortening (contraction). Traditional methods for investigating…

🟠 1-2-3-LQTS Risk Calculator

…This model was developed using a single center longitudinal cohort and subsequently validated with an independent cohort of 1,689 patients from the International LQTS…

🟠 1-2-3-LQTS Risk Calculator

…This model was developed using a single center longitudinal cohort and subsequently validated with an independent cohort of 1,689 patients from the International LQTS…

Cardiovascular Risk in Women: Sex-Specific Factors

…concentric remodelling, reduced longitudinal strain and heart failure with preserved ejection fraction are more frequent in women. Diabetes confers greater cardiovascular risk in women than…

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