I44.2

Clinical Causes: Degenerative changes in the conduction system of the heart Heart diseases such as coronary artery disease or myocardial infarction Heart surgery or invasive procedures affecting the conduction pathways Infections like myocarditis or endocarditis affecting the heart tissue Certain medications that influence the electrical activity of the heart (e.g., beta-blockers, calcium channel blockers, or anti-arrhythmic drugs) Electrolyte imbalances, particularly potassium or magnesium disturbances Congenital heart defects present from birth Exposure to certain toxins or recreational drugs

Key Symptoms: Bradycardia, or abnormally slow heart rate Dizziness or lightheadedness Fainting spells or syncope Shortness of breath Fatigue or weakness Chest discomfort or palpitations Confusion or difficulty concentrating

Diagnosis Path: Diagnosis primarily involves a detailed medical history and physical examination, followed by specific tests such as an electrocardiogram (ECG or EKG) which records the heart's electrical activity. In some cases, a Holter monitor or event recorder might be used to monitor heart activity over time. Additional assessments, including echocardiography or stress testing, may help determine underlying causes or assess heart function. An electrophysiology study could be performed for detailed mapping of the electrical pathways if needed.

Treatment Protocols: Treatment for complete AV block depends on severity and symptoms. In many cases, a pacemaker implantation is necessary to maintain an adequate heart rate and ensure proper electrical signaling. Medications may be adjusted or discontinued if they contribute to the conduction block. If underlying causes like infections are identified, appropriate therapies will be administered. Regular follow-up and monitoring are essential to manage the condition effectively, and emergency care should be sought if symptoms worsen.