I45.10

Clinical Causes: Coronary artery disease Heart valve disease Congenital heart defects Myocarditis or inflammation of the heart muscle Cardiomyopathy (diseases of the heart muscle) Pulmonary embolism Severe hypertension Post-heart surgery or trauma Electrolyte imbalances Idiopathic (unknown causes)

Key Symptoms: Often asymptomatic and discovered incidentally during routine ECGs Palpitations or irregular heartbeat sensations Dizziness or lightheadedness in some cases Shortness of breath if linked to underlying heart disease Syncope (fainting) rarely, depending on associated conditions

Diagnosis Path: Diagnosis mainly occurs through an electrocardiogram (ECG), which records the electrical activity of the heart. An RBBB appears as specific patterns on the ECG, such as a widened QRS complex greater than 120 milliseconds and characteristic changes in the V1 and V6 leads. Further testing might include echocardiography to assess heart structure and function, stress testing, or cardiac MRI to explore underlying causes or associated heart conditions.

Treatment Protocols: Management of right bundle-branch block depends on its cause and any associated symptoms or heart conditions. If RBBB is isolated and asymptomatic, it often requires no treatment. Addressing underlying issues, such as coronary artery disease or heart failure, is crucial. Regular monitoring and follow-up with a healthcare provider are recommended. In some cases, if RBBB is part of a broader conduction problem or associated with significant arrhythmias, medication or device therapy, like a pacemaker, might be necessary.