🔁 AVRT Quick Visual Guide. https://www.instagram.com/reel/DHJqtOGNbHZ/?igsh=N2V2cHRyZjZ3aXo3 1️⃣ Orthodromic AVRT (Most Common): → Pathway: Antegrade AV node ➡️ Retrograde accessory pathway. → ECG: Narrow QRS, retrograde P waves (RP > PR). → Key: Classic in WPW syndrome. 2️⃣ Antidromic AVRT (Rare): → Pathway: Antegrade accessory pathway ➡️ Retrograde AV node. → ECG: Wide QRS (mimics VT), retrograde P waves (often buried). → Key: Riskier due to preexcitation. #Cardiology #Electrophysiology #AVRT
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Orthodromic vs. Antidromic AVRT: The Loop Determines the QRS In AVRT, the circuit includes both the native conduction system and an accessory pathway (AP). The direction of impulse travel dictates the ECG morphology. 🔁 Orthodromic AVRT (Narrow QRS) • Down: AV node → His-Purkinje system (normal ventricular activation). • Back: Retrograde via the AP to the atria. • ECG: Narrow complex (unless aberrancy). ⚡ Antidromic AVRT (Wide QRS) • Down: AP directly into the ventricle (pre-excitation). • Back:
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AVRT---Orthodromic and Antidromic
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⚡Atrioventricular Reentrant Tachycardia (AVRT)! 📊Orthodromic AVRT (87% of cases): Narrow QRS, retrograde P waves, RP interval PR). Accessory pathway reentry circuit at play! ⏯️ #Cardiology #AVRT #ECG #HeartRhythm #CardiologistCommunity Share with your cardio network ,Tag a colleague who loves a good reentry puzzle 🧩! | Abdallah Othman
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⚡Atrioventricular Reentrant Tachycardia (AVRT)! 📊Orthodromic AVRT (87% of cases): Narrow QRS, retrograde P waves, RP interval <50% of R-R interval. 📊Antidromic AVRT (13% of cases): Wide QRS, short PR, longer RP interval (RP > PR). Accessory pathway reentry circuit at play! ⏯️ #Cardiology #AVRT #ECG #HeartRhythm #CardiologistCommunity Share with your cardio network ,Tag a colleague | Abdallah Othman
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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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Atrioventricular reentrant tachycardia. Atrioventricular Re-entry Tachycardia (AVRT) is a type of paroxysmal supraventricular tachycardia (PSVT) caused by accessory pathways. It involves a re-entry circuit between the AV node and the accessory pathway. There are two types: orthodromic AVRT (narrow complex rhythm) and antidromic AVRT (wide complex rhythm). Coumel’s sign helps differentiate between orthodromic AVRT and AVNRT. In typical AVNRT, retrograde P waves occur early, while in AVRT, they oc
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