Clinical Presentation & Protocol
Patient Usually Complains Of
Patient presents for evaluation of ECG findings suggestive of Left Posterior Fascicular Block (LPFB). Denies syncope, presyncope, palpitations, or exertional dyspnea. No history of acute myocardial infarction, hypertensive heart disease, or structural cardiac pathology. Review of systems negative for chest pain or autonomic instability.
Clinical Examination Findings
Cardiovascular exam reveals regular rate and rhythm, S1 and S2 heart sounds normal, no murmurs, rubs, or gallops. Peripheral pulses are 2+ and symmetric. No jugular venous distention or peripheral edema noted. ECG confirms right axis deviation (RAD) with QRS duration <120ms, rS pattern in leads I and aVL, and qR pattern in leads II, III, and aVF.
Treatment Protocol
LPFB is typically a benign conduction finding in the absence of structural heart disease. No specific antiarrhythmic therapy indicated. Management focuses on identifying and treating underlying etiology (e.g., hypertension, coronary artery disease). Recommend serial ECG monitoring and periodic cardiovascular evaluation to assess for progression to high-grade AV block.