Related Experiment Videos
[Atrial fibrillation]
1Departamento de Electrocardiografía y Arritmias, Instituto Nacional de Cardiología Ignacio Chávez, INCICH, Juan Badiano No. 1, 14080 México, D.F.
Insights
Atrial fibrillation (AF) management focuses on rate control and stroke prevention. Novel treatments like catheter ablation and investigational therapies offer new hope for patients with this common heart arrhythmia.
Area of Science:
- Cardiology
- Electrophysiology
Context:
- Atrial fibrillation (AF) is the most prevalent sustained cardiac arrhythmia.
- Current research focuses on understanding AF mechanisms and developing advanced treatments.
Purpose:
- To review current management strategies for atrial fibrillation, including rate control, stroke prevention, and rhythm restoration.
- To highlight emerging therapeutic frontiers in AF treatment.
Summary:
- Key management goals for chronic AF include ventricular rate control and embolic stroke prevention through oral anticoagulation.
- Therapeutic options range from antiarrhythmics and cardioversion to innovative catheter ablation techniques.
- New research explores AF prevention through stimulation and implantable defibrillation.
Impact:
- Effective management of AF reduces stroke risk and improves patient quality of life.
- Advancements in AF treatment, particularly catheter ablation, offer improved success rates and new therapeutic avenues.
Abstract:
Atrial fibrillation (AF) is the most common sustained arrhythmia. AF has now been exhaustively studied: more is known about its mechanism and research is moving towards new forms of treatment. For chronic AF, basically the control of ventricular rate and the brain protection are the main issues. It is well known that with the identification of high risk group for embolism, oral anticoagulation should be administered. Ventricular rate control can be achieved by using betablockers or calcium channel blockers, unless these are contraindicated for the elderly. Oral anticoagulation prevents the stroke. The main mechanism of AF is the re-entry of multiple wavelets, but now it is more frequently found on patients with focal AF. Therapies are employed to bring the patient to a sinusal rhythm as soon as possible with antiarryhthmics or electric cardioversion externally or internally. The internal procedure includes 1 to 15 J and the success rate is of 91% vs 67% in relation to the external one. The introduction of the catheter ablation has opened new frontiers for the treatment of AF, first as the ablate-and-pace technique and now trying to mimic the maze procedure or with the ablation of the focal tachycardia. The stimulation for prevention of AF under research, as well as the implantable dysfibrillation for selected patients. On going studies will show the possible benefit of this type of benefits.