It most commonly results from the effect of age on the sinus node.

Significant sinus node dysfunction that causes symptoms is treated with a pacemaker.

Koch became known for his work on the motor centres of the human heart, and coined the term "sinus node".

Examples include sinus node dysfunction and heart block.

Sick sinus syndrome is also called sinus node dysfunction.

After the ventricles contract, the pattern repeats itself with a new electrical impulse that starts in the sinus node.

A delay or complete block of the electrical impulse as it travels from the sinus node to the ventricles.

Heart muscles are controlled by the sinus node influenced by the autonomic nervous system.

The electrical impulse begins in an area called the sinus node, located in the upper part of the right atrium.

Sinus node dysfunction describes an irregular heartbeat caused by faulty electrical signals of the heart.

Sinus node dysfunction, atrioventricular block (almost all drugs)

This is mediated by the sympathetic nervous system on the sinus node and called sinus tachycardia.

Sinus node dysfunction.

Sinus bradycardia is a heart rhythm that originates from the sinus node and has a rate of under 60 beats per minute.

An example of a self-oscillating medium is sinus node in the heart, in which excitation pulses arise spontaneously.

As we get older, scarring of the sinus node can occur and, in some people, it can be so severe that it causes this syndrome.

A new selective sinus node inhibitor ivabradine is also being used to treat IST.

Sick sinus syndrome, a sinus node dysfunction, causing alternating bradycardia and tachycardia.

Some common causes of hemodynamically significant bradycardia include acute myocardial infarction, sinus node dysfunction and complete heart block.

If the atrial fibrillation/flutter is part of a condition called sick sinus syndrome, the sinus node may not work properly.

When the sinus node fires, an impulse of electrical activity spreads through the right and left atria, causing them to contract, forcing blood into the ventricles.

Patients with chronic complete high cervical spinal cord lesions have intact efferent vagal neural pathways directed to the sinus node.

Most conduction pathways originate from the cardiogenic mesoderm but the sinus node may be derived from the neural crest.

Treatment includes stop medications that suppress the sinus node (beta blocker, CCB, digitalis); may need pacing.

An atrioventricular nodal bradycardia or AV junction rhythm is usually caused by the absence of the electrical impulse from the sinus node.