What does the CFAE procedure primarily aim to eliminate?

The CFAE (Complex Fractionated Atrial Electrograms) procedure primarily aims to eliminate initial wavelets and their colliding points, which are critical components in the propagation of atrial fibrillation. During atrial fibrillation, the electrical activity in the atria becomes chaotic, leading to ineffective atrial contractions. The presence of complex fractionated electrograms indicates areas of rapid and disorganized electrical activity, which contribute to the maintenance of this arrhythmia.

By targeting these specific areas where wavelets and colliding points occur, the CFAE procedure seeks to disrupt the abnormal electrical circuits that sustain atrial fibrillation. This approach can help restore a more normal rhythm in the atria by reducing the burden of electrical activity that supports fibrillation, therefore improving the chances of maintaining sinus rhythm post-procedure.

The other options do not accurately describe the focus of the CFAE procedure. It does not aim to eliminate all atrial muscle fibers, only specific abnormal electrical activity. Additionally, it is not confined to just the right atrial musculature or solely the conductive pathways within the left atrium; rather, it addresses the complex interactions within the atrial tissue as a whole.