Atrial Flutter : Conduction & Ventricular Response Atrial flutter is a macro-reentrant atrial tachycardia with a characteristic sawtooth pattern on ECG, most visible in leads II, III, and aVF. The atrial rate is typically regular and ranges from 250-350 bpm. The ventricular response is determined by the refractory period of the atrioventricular (AV) node, leading to fixed conduction ratios. 🔹 2:1 Block: Most common; ventricular rate ~150 bpm 🔹4:1 Block: Target with pharmacologic rate control �
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Atrial Flutter : Conduction & Ventricular Response Atrial flutter is a macro-reentrant atrial tachycardia with a characteristic sawtooth pattern on ECG, most visible in leads II, III, and aVF. The atrial rate is typically regular and ranges from 250-350 bpm. The ventricular response is determined by the refractory period of the atrioventricular (AV) node, leading to fixed conduction ratios. 🔹 2:1 Block: Most common; ventricular rate ~150 bpm 🔹4:1 Block: Target with pharmacologic rate control �
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🔵 Atrial Flutter: Fast, Regular, and Recognizable! 🌀 What is it? A rapid, regular atrial rhythm with classic sawtooth waves on ECG. ⚡ Why it matters: Caused by a reentrant circuit—leads to atrial rates of 250–350 bpm and risk of stroke. 💡 Management Highlights: Acute: Cardioversion if unstable Rate control: Beta-blockers, CCBs, digoxin Rhythm control: Antiarrhythmics, ablation Stroke prevention: Anticoagulate per CHA2DS2-VASc ❗ Complications: Stroke, heart failure, tachycardia-induced cardiom
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🔵 Atrial Flutter: Fast, Regular, and Recognizable! 🌀 What is it? A rapid, regular atrial rhythm with classic sawtooth waves on ECG. ⚡ Why it matters: Caused by a reentrant circuit—leads to atrial rates of 250–350 bpm and risk of stroke. 💡 Management Highlights: Acute: Cardioversion if unstable Rate control: Beta-blockers, CCBs, digoxin Rhythm control: Antiarrhythmics, ablation Stroke prevention: Anticoagulate per CHA2DS2-VASc ❗ Complications: Stroke, heart failure, tachycardia-induced cardiom
20.7K views7 months ago
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Atrial Tachycardia Vs. Atrial Flutter: Quick Guide 🫀⚡️ Mechanism: Focus 🎯 vs. Circuit 🔁 ECG Baseline:Flat line ⏸️ vs. Continuous Sawtooth 🔁 Key Pearl:Look for the isoelectric line! It's the fastest clue. 💡 #Cardiology #ECG #Arrhythmia #MedEd #AtrialTachycardia #AtrialFlutter #Cardiology #Electrophysiology | Abdallah Othman
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