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cardioversion procedure to restore normal rhythm of the heart by applying a controlled electrical shock to the exterior of the chest embolization technique used to block blood flow to a site by passing a catheter to the area and injecting a synthetic material or medication specially designed to occlude the blood vessel angioplasty Procedure that alters a vessel through surgery or dilation of the vessel using a balloon catheter coronary artery bypass graft surgical technique to bring a new blood supply to heart muscle by detouring around blocked arteries percutaneous transluminal coronary angioplasty a non-surgical procedure designed to dilate narrowed coronary arteries by use of a fluroscope and a balloon catheter. artherectomy removal of occluding material using a cutting or grinding device biopsy diagnostic examination of a piece of tissue from the living body arterial Pertaining to an artery. catheter ablation destruction of conduction tissue of the heart to interrupt the abnormal conduction pathway causing the arrhythmia, thus allowing normal heart rhythm to resume commissurotomy surgical separation of the leaflets of the mitral valve, which have fused together at their "commissures" (points of touching) laser ablation procedure used to remove or treat varicose veins ligation and stripping tying a varicose vein followed by removal of the affected segment open heart surgery surgical procedure performed on or within the exposed heart, usually with the assistance of a heart-lung machine pericardiocentesis Surgical puncture of the pericardium to remove fluid from the pericardial sac thrombolysis Destruction of blood clot using anticlotting agents called "clot-busters" such as tissue plasminogen activator intravascular within the blood vessel to dissolve a blood clot valvotomy incision of a valve to increase the size of the opening; used in treating mitral stenosis venipuncture puncture of vein with needle to withdraw blood or infuse fluid