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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Orthodromic vs. Antidromic AVRT: The Loop Determines the QRS In …
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Atrioventricular reentrant tachycardia (AVRT) & AV nodal reentrant tachycardia (AVNRT)
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Comparing Heart's Conduction in AVRT & AVNRT (Supraventricular Tachycardia) | Daily Cardiology
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Comparing Heart's Conduction in AVRT & AVNRT (Supraventricular …
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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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🔁 AVRT Quick Visual Guide. 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 #WPW #ECG | Abdallah Othman
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🔁 AVRT Quick Visual Guide. 1️⃣ Orthodromic AVRT (Most Commo…
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🔍 AVNRT vs. AVRT: Cheat Sheet Master the critical differences between the two most common SVTs. Save this for your next code or rounds! Like & Share to educate your network! 🔁 👨‍⚕️👩‍⚕️ Tag a future Electrophysiology fellow who needs to see this! #Cardiology #EPeeps #SVT #ECG #MedTwitter #FOAMed #MedEd | Abdallah Othman
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🔍 AVNRT vs. AVRT: Cheat Sheet Master the critical differences bet…
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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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⚡In AVRT, which accessory pathway is most frequently associated wit…
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