1. Atrial Flutter and Atrial Fibrillation Chapter 15

2. Introduction Atrial flutter and fibrillation tachycardias ectopic

3. Introduction PVST atrial rate = 140-250 cycles /min Atrial flutter atrial rate = 250-350 cycles/min F waves “sawtooth” shape Atrial fibrillation atrial rate = 350-600 cycles/min f waves

4. Atrial Flutter/Fibrillation

5. Atrial Flutter Reentrant type arrhythmia

6. Atrial Flutter Typical atrial rate is about 300 / min

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

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

9. 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

10. Atrial Fibrillation Atrial rate = 350-600 f waves course fine Irregular ventricular rate Multiple reentrant wavelets or multiple foci of atrial activation

11. Atrial Fibrillation