What Is Pericoronitis?

Coronary heart disease and arrhythmias, scar tissue left after myocardial ischemia and infarction, especially when the pacing conduction system is involved, can cause various arrhythmias, which are mostly manifested as tachycardia, bradycardia or arrhythmia. Some people's arrhythmia can be the only symptom of coronary heart disease, and most patients can have palpitations and chest tightness. The excitability of the normal heart originates in the sinoatrial node, and is stimulated by the internode node bundle, atrioventricular junction tissue, atrioventricular bundle, left and right bundle branches, and Purkinje fibers and ventricular muscles. Normally, the origin of cardiac agitation comes from the sinoatrial node. The sinoatrial node excitement can not only be transmitted regularly in the above order with a certain frequency, but also the time for which the excitement is transmitted in various parts is limited. If the sinoatrial node's agitation cannot occur at a regular frequency, or the origin of the agitation is not in the sinoatrial node, but in other conductive tissues other than the sinoatrial node, the shape of the "ectopic pacing point", or agitated Arrhythmia occurs when the frequency or rhythm is abnormal, or the conduction is not performed in the normal order, or the conduction abnormality of the excitement causes disturbances in the frequency and rhythm of the heart activity.