The most appropriate treatment for third-degree AV block is aggressive treatment of the cause, raising the ventricular rate to promote conduction, and implanting an artificial pacemaker if necessary.
Third degree AV block, also known as complete AV block, is a serious and dangerous arrhythmia. The electrocardiogram shows complete atrioventricular separation with the atria and ventricles agitated separately from each other. It must be dealt with promptly and aggressively, first by actively searching for the cause and treating it aggressively, such as acute myocardial infarction, severe electrolyte disorders, myocarditis, and various infectious diseases.
Secondly, it is necessary to increase the ventricular rate and promote cardiac conduction in order to improve hemodynamic abnormalities. Drugs such as atropine and isoprenaline, for example, need to be used correctly under medical supervision.
Finally, to prevent life-threatening phenomena such as cardiac arrest, syncope, ventricular fibrillation, and sudden death, a temporary or permanent pacemaker should be implanted early.
When third-degree atrioventricular block is detected, it is important to seek prompt medical attention and active treatment under the guidance of a doctor.