25K views · 761 reactions | AVNRT vs. AVRT: AVNRT: Microreentry...

🔁 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

Atrioventricular reentrant tachycardia. Atrioventricular Re-entry...

3.3K views · 95 reactions | ⚡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 who loves a good reentry puzzle 里! | Abdallah Othman | Facebook

❓ 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