A breakdown of AVRT, a condition related to Wolff-Parkinson-White SYNDROME (WPW), as compared to AVNRT, a distinct dysrhythmia associated with a pathology unrelated to WPW. | EMS Avenger
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A breakdown of AVRT, a condition related to Wolff-Parkinson-White S…
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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 differences between the two most common SVTs. #Cardiology #SVT #ECG #arrhythmia | Abdallah Othman
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🔍 AVNRT vs. AVRT : Cheat Sheet differences between the two most …
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👇WPW Syndrome (Part 1) Overview of the Basics: Delta Wave, Maximal Pre-excitation, Orthodromic and Antidromic AVRT, and FBI Tachycardia👇 👉 Antegrade conduction through the AVN and accessory pathway leads to fusion. 👉 Orthodromic AVRT: Antegrade conduction through the AVN → narrow QRS complex. 👉 Antidromic AVRT: Antegrade conduction through the AP → consistently wide QRS complex. 👉 FBI Tachycardia: Complete chaos → Medical emergency! The AP must be ablated before the patient leaves the hosp
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👇WPW Syndrome (Part 1) Overview of the Basics: Delta Wave, Maximal P…
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👇 WPW Syndrome (Part 2): How to Differentiate Between a Right-Sided or Left-Sided Accessory Pathway During Orthodromic AVRT Based on ECG?👇 👉 Long RP tachycardia with a VA interval > 70 ms 👉 Narrow complex tachycardia with a 1:1 atrioventricular relationship 👉 A negative P wave in lead I indicates a left-sided AP 👉 A positive P wave in lead I indicates a right-sided AP 👉 Septal accessory pathways are often associated with a biphasic P wave in lead I | Cardiophilia
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👇 WPW Syndrome (Part 2): How to Differentiate Between a Right-Side…
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Alright this is our type B WPW. You have a dominant S wave in V1. Now look for a negative delta wave in V1 or V2. You can see it is inverted and the slurring is noted in V1. If you flip the image, it will look like a normal delta wave Tachyarrhythmias So there are 2 main tachyarrhythmias associated with WPW. You have atrioventricular reentrant tachycardia or AVRT and atrial fibrillation with WPW. But there are different types of AVRT. There is orthodromic which is the most common and antidromic.
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Alright this is our type B WPW. You have a dominant S wave in V1. No…
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