Left Posterior Fascicular Block EXPLAINED: ECG Criteria, Etiology & Formation (Beginner’s Guide) скачать в хорошем качестве

Left Posterior Fascicular Block EXPLAINED: ECG Criteria, Etiology & Formation (Beginner’s Guide)

⚡ Left Posterior Fascicular Block (LPFB): ECG Criteria, Etiology & Formation Explained Left Posterior Fascicular Block (LPFB), also called left posterior hemiblock, is an intraventricular conduction delay affecting the posterior fascicle of the left bundle branch, leading to right axis deviation and characteristic ECG changes. But what causes LPFB, and how can it be identified on ECG? In this video, we break down the electrophysiology, ECG criteria, and clinical implications of LPFB—perfect for medical students, ECG technicians, USMLE prep, and cardiology professionals. What You’ll Learn in This Video: ✔️ What is Left Posterior Fascicular Block (LPFB)? ✔️ How does LPFB affect conduction and axis deviation? ✔️ ECG Criteria: Right axis deviation, small R waves in leads I and aVL, deep S waves in leads II, III, and aVF ✔️ Etiology: Coronary artery disease, myocarditis, degenerative conduction disease ✔️ LPFB vs. Left Anterior Fascicular Block (LAFB): Key Differences ✔️ Clinical significance & when LPFB requires further workup ✔️ High-yield mnemonics & USMLE exam pearls ⏰ Timestamps for Easy Navigation: 00:00 Video overview 00:43 Conduction system review 01:37 Definition of LPFB and ECG criteria according to ESC guideline 02:20 Explanation of ECG criteria on real ECG example 05:22 Intrinsicoid deflection time measurement 07:32 Changes of depolarization direction and QRS complex formation in LPFB 10:24 LPFB is the rarest of all interventricular conduction disorders with an explanation 11:52 Differential diagnosis for LPFB 12:35 Etiology of LPFB 💡 Engage With Us: Question for You: Have you seen an LPFB pattern in clinical practice? What was the underlying cause? Drop your thoughts in the comments! Don’t forget to like 👍 this video, subscribe 🔔 to the channel, and share this with fellow students & professionals! This video about Left posterior fascicular block, ECG criteria explained according to ESC guidelines, with an explanation of depolarization direction changes and QRS complex formation. Also, we describe the differential diagnosis, prevalence, and etiology. Out telgram channel with ECG and other useful stuff https://t.me/foxterRier_med #usmle #step1 #step2 #medicine #pathology #physiology #education #medicalschool #pharmacology #biochemistry #highyield #lab #education #ecg #ecginterpretation #cardiology #heartblock #LPFB