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Doctor insights on: What Is The Differences Between Sinoatrial And Atrioventricular Node

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What is the differences between sinoatrial and atrioventricular node?

What is the differences between sinoatrial and atrioventricular node?

Two diffent areas: Eletrical impulses to start the heart beating originate in the sinoatrial node near the top of the heart and travel down fibers to the ac node which is lower in the heart. ...Read more

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What is the purpose of the avn (atrioventricular node)?

What is the purpose of the avn (atrioventricular node)?

Brakes: This is specialized conduction tissue between the atria (upper chambers) and ventricles. The normal heart beat arises from the atria an passes through this node to the ventricles to stimulate contraction. If something goes awry in the atria causing a very rapid heart rate, the AV node will prevent some of these impulse from getting through, limiting how fast your heart will beat in response. ...Read more

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What is the purpose of the avn (atrioventricular node)?

What is the purpose of the avn (atrioventricular node)?

Modulate impulses: The AV node is electrical tissue that separates the upper from the lower chambers of your heart. On an ECG, it relates to the PR segment. The AV node slows impulses briefly from the top to the lower chambers of the heart and prevents very rapid upper heart beats from causing dangerous fast heart beating of the major lower chambers of the heart. Blockage of AV node (ablation) stops impulses. ...Read more

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Are there better and newer treatments for atrioventricular node conduction block?

Not really: There are really no medical treatments for av block. Best treatment is to avoid the medications that cause it or make it worse. If the block is severe enough, pacemaker is usually the treatment. ...Read more

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Are there some genetic reasons I get atrioventricular node conduction block off and on?

Are there some genetic reasons I get atrioventricular node conduction block off and on?

No: There are some genetic conditions associated with heart block, some associated with deafness. In these cases, the heart block is permanent. If your heart block is transitory, it may be related to some medications you are taking (if any) or underlying conditions, depending on your age. You should see a doctor to determine if further tests or treatments (e.g. Pacemaker) are needed. ...Read more

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What the sinoatrial node release when it fires?

SA node: read this: http://en.wikipedia.org/wiki/Sinoatrial_node the impulse is electrochemical ...Read more

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What are causes of atrioventricular septal defect?

What are causes of atrioventricular septal defect?

Unknown: The heart is a very complex organ. We still do not fully understand how the normal heart develops in the fetus. We understand even less about what causes the heart to develop abnormally. It is likely that there are multiple genetic and environmental factors that contribute to abnormal cardiac development. ...Read more

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Could atrioventricular block be the cause of fatigue?

Could atrioventricular block be the cause of fatigue?

AV block: Fatigue is typical of complete av block, common with second degree av block and unusual with first degree av block. ...Read more

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What is second degree atrioventricular block or wenckebach phenomenon. I am diagnosed with this.

What is second degree  atrioventricular block or wenckebach phenomenon. I am diagnosed with this.

It means there is : A delay of the elcetrical message in your heart coordinating the squeeze between your left upper chamber (atrium) and the left lower chamber (ventricle). This is not serious and can be monitored by ekgs. ...Read more