In AF, abnormal electrical activity can originate from any of the pulmonary veins. The defect in the membrane seals off on its own. Because AF begins in the left atrium, a needle is required to cross from the right to the left side through the thin membrane that divides the 2 upper chambers. The catheters are positioned using X-ray, ultrasound, and a computerized 3D mapping system to guide placement. Normally 2 needle holes are placed in vein at the top of the right thigh in the groin area through which catheters are passed and positioned in the heart. While you are under anesthesia, an ultrasound scanner is passed down your throat to confirm no clots in the heart. For the treatment of heart rhythm disorders, radio-frequency energy at a much lower power is used to ablate tissue within the heart that is responsible for initiating or perpetuating your arrhythmia.
Radiofrequency energy has been used for decades by surgeons to cut tissue and to stop bleeding. Radiofrequency energy is a low power, high frequency energy that is delivered to a tiny region of heart tissue near the tip of the catheter, thus cauterizing or ablating the tissue. An ablation catheter can be used to deliver radiofrequency energy to the problem area in the heart. Each catheter has electrodes on its end that can monitor the heart’s internal electrical activity, akin to performing an internal ECG of the heart. Up to 4 catheters may be used during the procedure. Usually, a blood vessel at the top of the right thigh in the groin area is used for access to the heart.
ATRIAL FLUTTER ABLATION ENDOSCOPY SKIN
A catheter is a fine wire that can be threaded through a blood vessel via a needlehole in the skin and placed in the heart. It is performed in a special operating theatre called a cardiac catheterization laboratory, or cath lab for short. Catheter ablation is a minimally invasive technique used to treat a variety of heart rhythm disorders.
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