Atrial Flutter and Atrial Fibrillation Chapter 15.

Atrial Flutter and Atrial FibrillationAtrial Flutter and Atrial Fibrillation

Chapter 15Chapter 15

Introduction

• Atrial flutter and fibrillation

• tachycardias

• ectopic

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

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 = 350-600• f waves

• course• fine

• Irregular ventricular rate• Multiple reentrant wavelets or multiple foci of

atrial activation

Atrial Fibrillation

Atrial Fibrillation

Atrial Fibrillation

Atrial Fibrillation

Atrial Fibrillation