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

🔁 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

🔍 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

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*:

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