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Introduction Sinus node dysfunction (SND) is defined as an insufficient heart rate for physiologic demands. It may manifest as sinus

Introduction Sinus node dysfunction (SND) is defined as an insufficient heart rate for physiologic demands. It may manifest as sinus

Introduction The sinoatrial or sinus node is a collection of specialized pacemaker cells near the junction of the right atrium

Definition In the normal heart, the impulse generated in the sinus node stops after sequential activation of atria and ventricles

Definitions The normal site of initiation of the cardiac impulse is the sinus node, where a spontaneous decline in the

Definitions The normal site of initiation of the cardiac impulse is the sinus node, where a spontaneous decline in the

One must apply some caution when pronouncing a heart to be healthy. In the normal heart, fibrosis develops with age,

Bundle branch block The heart is a muscular pump that has to be electrically activated by a specialized wiring system

Definition In this arrhythmia, irregular atrial impulses occur at rates over 300/minute, uniform excitation of the atria is no longer

Introduction Congestive cardiomyopathy is a broad term characterized by an impaired function of the heart muscle leading to enlargement of

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