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): 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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Video: Atrioventricular nodal reentrant tachycardia (AVNRT) - Video Explanation! | Osmosis | Osmosis
Video: Atrioventricular nodal reentrant tachycardia (AVNRT) - Video Explanation! | Osmosis | Osmosis
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AVNRT (Atrioventricular Nodal Reentrant Tachycardia) and AVRT (Atrioventricular Reentrant Tachycardia). #Cardiology #Healthcare Overview: AVNRT and AVRT are types of supraventricular tachycardias (SVTs) characterized by re-entry circuits involving different pathways. AVNRT involves the AV node, while AVRT involves an accessory pathway between the atria and ventricles. - AVNRT Etiology*: Re-entry circuit within or around the AV node. - AVRT Etiology*: Presence of an accessory pathway. Diagnosis*:
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AVNRT (Atrioventricular Nodal Reentrant Tachycardia) and AVRT (Atrioventricular Reentrant Tachycardia). #Cardiology #Healthcare Overview: AVNRT and AVRT are types of supraventricular tachycardias (SVTs) characterized by re-entry circuits involving different pathways. AVNRT involves the AV node, while AVRT involves an accessory pathway between the atria and ventricles. - AVNRT Etiology*: Re-entry circuit within or around the AV node. - AVRT Etiology*: Presence of an accessory pathway. Diagnosis*:
720 viewsOct 17, 2024
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Atrioventricular reentrant tachycardia (AVRT) & AV nodal reentrant tachycardia (AVNRT)
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AVNRT vs. AVRT: AVNRT: Microreentry within the AV node. · ECG: Short RP interval. P wave typically buried (pseudo R' V1). · Baseline: No pre-excitation. AVRT: Macroeentry utilizing an accessory pathway. · ECG: Long RP interval. Discrete retrograde P wave in ST segment. · Baseline: Often exhibits pre-excitation (WPW pattern). Critical: Pre-excited AF requires avoidance of nodal blockade. Like ✅ | Share 🔁 | Comment 💬 #Cardiology #Electrophysiology #SVT #ECG #HeartRhythm | Abdallah Othman
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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 Characteristic: Look for the pseudo R' in V1 and the absence of visible P waves due to simultaneous atrial and ventricular activation. #Cardiology #AVNRT #HeartRhythm #MedEd #EPeeps | A
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