Atrioventricular nodal reentrant tachycardia (AVNRT): Video, Causes, & Meaning | Osmosis
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Atrioventricular nodal reentrant tachycardia (AVNRT): Video, Caus…
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Atrioventricular Nodal Reentrant Tachycardia (AVNRT): Mechanism & Management 🔹 Primary Mechanism & Ablation Target AVNRT is a macro-reentrant supraventricular tachycardia dependent on dual atrioventricular (AV) nodal physiology. The typical (slow-fast) circuit uses the slow pathway for antegrade conduction and the fast pathway for retrograde conduction. Catheter ablation targeting the slow pathway is the definitive therapy. The standard anatomical target is the right inferior nodal extension wi
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Atrioventricular Nodal Reentrant Tachycardia (AVNRT): Mechanis…
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❓ What is AVNRT? AVNRT (Atrioventricular Nodal Reentrant Tachycardia) is the most common type of supraventricular tachycardia (SVT). It happens when a reentrant circuit forms within the AV node, causing rapid, regular heartbeats. Common symptoms include palpitations, dizziness, and shortness of breath. 📉 Key ECG Features: · No visible P waves (simultaneous atrial & ventricular activation). · Pseudo R' wave in lead V1 (retrograde P wave distorting the terminal portion of the QRS). · Pseudo S wav
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❓ What is AVNRT? AVNRT (Atrioventricular Nodal Reentrant …
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FacebookAbdallah Othman
Atrioventricular Reentrant Tachycardia (AVRT) ✨(AVRT) is a type of supraventricular tachycardia (SVT) caused by a reentrant circuit involving the AV node and an accessory pathway (AP). Pathophysiology - Reentry circuit: AV node accessory pathway (AP). - Orthodromic (90%): Narrow QRS ➡️ AP retrograde. - Antidromic (10%): Wide QRS ⚠️ (mimics VT). 📈 ECG Signs: - Orthodromic: Retrograde P wave after QRS, ❌ delta wave during tachycardia. - Antidromic: Wide QRS, delta wave in sinus rhythm (WPW). - WP
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Atrioventricular Reentrant Tachycardia (AVRT) ✨(AVRT) is a …
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