The sinoatrial (SA) node is the natural pacemaker of the heart. It generates electrical impulses that cause the heart’s chambers to contract, setting the heart rate. The SA node typically generates 60 ...
This is a classic example of AV nodal blocks that can occur with inferior wall myocardial infarctions. There are two mechanisms behind this phenomenon. An inferior wall MI results in vagal stimulation ...
If the SA node of the heart isn't functioning properly, then this might lead to abnormal rhythms and irregular heartbeat. It is then that you might need a pacemaker. Sometimes the SA node is not able ...
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