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Catheter ablation may be recommended for a recurrent or persistent arrhythmia resulting in symptoms or other dysfunction. Atrial fibrillation frequently results from bursts of tachycardia that originate in muscle bundles extending from the atrium to the pulmonary veins. [1] Pulmonary vein isolation by transcatheter ablation can restore sinus ...
Pulmonary vein isolation ablation technology has used thermal methods (radiofrequency ablation or, less often, cryoablation) to destroy pulmonary vein cells. [5] As with thermal methods of ablation, in pulsed field ablation, a thin, flexible tube ( catheter ) is inserted into a blood vessel in the groin and threaded up into the heart to ablate ...
Radiofrequency ablation is a minimally invasive procedure used in the treatment of varicose veins. It is an alternative to the traditional stripping operation. Under ultrasound guidance, a radiofrequency catheter is inserted into the abnormal vein and the vessel treated with radio-energy, resulting in closure of the involved vein.
An access site that will allow catheters to be passed to the heart via an artery or vein is shaved and cleaned, usually in the groin. The blood vessels used to reach the heart (the femoral or subclavian veins , and sometimes the femoral artery ) are punctured before a guidewire and plastic sheath are inserted into the vessel using the Seldinger ...
Pulmonary vein isolation by transcatheter ablation can restore sinus rhythm. [15] The ganglionated plexi (autonomic ganglia of the heart atrium and ventricles) can also be a source of atrial fibrillation, and is sometimes also ablated for that reason. [16]
Various other procedures can also be performed at the same time. After a heart attack, it can be restricted to the culprit vessel (the one whose obstruction or thrombosis is suspected of causing the event) or complete revascularization; complete revascularization is more efficacious in terms of major adverse cardiac events and all-cause mortality.