Atrial Flutter and Atrial Fibrillation Chapter 15.

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Presentation transcript:

Atrial Flutter and Atrial Fibrillation Chapter 15

Introduction Atrial flutter and fibrillation tachycardias ectopic

Introduction PVST atrial rate = cycles /min Atrial flutter atrial rate = cycles/min F waves “sawtooth” shape Atrial fibrillation atrial rate = cycles/min f waves

Atrial Flutter/Fibrillation

Atrial Flutter Reentrant type arrhythmia

Atrial Flutter Typical atrial rate is about 300 / min

Atrial Flutter Ventricle rate is closer to 150, 100 or 75 beats/min 2:1, 3:1 and 4:1

Atrial Flutter Causes Symptoms palpitations, light-headedness, syncope Formation of thrombi

Atrial Flutter Treatment spontaneous oxygen treatment (hypoxemic patients) drugs (beta blocker, Ca channel blocker, digitalis, antiarrhythmia drug) synchronized electrical cardioversion pacing wire RF catheter ablation

Atrial Fibrillation Atrial rate = f waves course fine Irregular ventricular rate Multiple reentrant wavelets or multiple foci of atrial activation

Atrial Fibrillation