title: Acute problems in the coronary care unit that do not require intervention. IV. Acute block in the A-V node.
abstract: Second- and third-degree (complete) A-V block due to an acute inferior wall myocardiac infarction does not require any treatment if the heart rate (from the junctional pacemaker) is in a range that permits an adequate blood pressure with adequate peripheral perfusion. The patient is watched carefully for any symptomatic fall in blood pressure in order to promptly correct a bradycardia-related fall in cardiac output. The clinical state of the patient with the arrhythmia is treated, and not just the arrhythmia.
mesh_terms: D004562:Electrocardiography; D006327:Heart Block / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000150:complications