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Catheter Ablation Anatomy-guided linear atrial lesions for radiofrequency catheter ablation of atrial fibrillation. Catheter ablation approach on the right side only for paroxysmal atrial fibrillation therapy: long-term results. There are currently 3 main approaches to AF ablation: atrial linear lesions to interrupt AF wavelet propagation, focal ablation of foci that trigger AF, and circumferential ablation of the pulmonary vein ostium to achieve electrical isolation of triggering foci. www.medhelp.org /forums/cardio/messages/32463.html

eMedicine - Radiofrequency Catheter Ablation : Article by Mark L Greenberg, MD The simplest catheter ablation procedure performed in patients with atrial fibrillation is RFCA of the AV junction. In patients with VT due to structural heart disease, catheter ablation is used as adjunctive therapy to the implantable cardioverter-defibrillator (ICD), eg, in patients with frequent ICD discharges. History: Catheters were first used for intracardiac recording and stimulation in the late 1960s, but surgical treatment for refractory tachyarrhythmias was the mainstay of nonpharmacologic therapy until it was superseded by catheter ablation. www.emedicine.com /med/topic2957.htm

Catheter ablation Catheter ablation of an irregular heartbeat involves having a tube (a catheter) inserted into the heart through which electrical energy is sent to either reset the heartbeat or stop the heart from beating so a mechanical pacemaker can be put in place. The technique of catheter ablation (meaning tube-guided removal) is used to interrupt the abnormal contractions in the heart, allowing normal heart beating to resume. Catheter ablation involves delivering highly focused heat (or radio frequency energy) to specific areas of the heart. www.rwjhamilton.org /Atoz/ency/catheter_ablation.asp

Radiofrequency Catheter Ablation Schematic diagram illustrating the principles befind RF catheter ablation of AV nodal reentrant tachycardia (AVNRT) (panel A) and AV reciprocating tachycardia (AVRT) (panel B). Catheter ablation is performed in a special procedure room called an electrophysiology (EP) laboratory. Radiofrequency (RF) catheter ablation is an invasive procedure developed in 1990 that, unlike trteatment using medication, offers the opportunity to cure many types of cardiac arrhythmias. www.kpep.org /arrhythmia_treatments/rf_overview.htm

Catheter Ablation of Arhythmogenic Foci, 123 Catheter ablation of VT foci with direct current had a 42% success rate, as well as an additional 37% of patients who were arrhythmia-free on meds, but the death rate at that time was 12%. Catheter ablation involves temporarily placing a long plastic channel (catheter) inside the heart, and destroying the abnormal heart tissue, using electricity or radio waves This is called radiofrequency ablation or modification. Catheter ablation of a single VT in such patients may be only palliative, and may not eliminate the need for other antiarrhythmic therapy. www.bcbsma.com /common/en_US/hresource/123.jsp

Electrophysiology and Arrhythmia The ablation catheter is positioned on the His bundle and the conductive tissue is destroyed by application of radiofrequency energy so the abnormal atrial rhythm is not conducted through to the ventricles. In cases where the ablation catheter is inserted into the left ventricle via the arterial system, there is a small risk of a clot forming on the catheter during the procedure and becoming dislodged into the circulation. The decision to proceed with catheter ablation, therefore, must be made after the risks and benefits of the procedure have been considered and discussed with your doctor. www.angelfire.com /ab/cardiosv/page3.html

Radiofrequency Ablation Catheter ablation is a non-surgical technique that disrupts (destroys) parts of the abnormal electrical pathway that is causing your arrhythmia (abnormal heart rhythm). Catheter ablation is a non-surgical technique that disrupts (destroys) parts of the abnormal electrical pathway that is causing the arrhythmia. Catheter ablation is a relatively low-risk procedure that may permanently cure the problem you have been experiencing. www.fciheart.com /rf_ablation.htm

FDA Heart Health Online - Cardiac Ablation Catheter A cardiac ablation catheter is a long, thin tube that is threaded into or onto the heart to destroy (ablate) an area of heart tissue that is causing abnormal heart rhythms. Catheter ablation should not be used in patients who have a blood infection or in patients who can not tolerate certain catheter placement approaches. Cardiac ablation catheters are used to treat abnormally rapid heartbeats that cannot be controlled with medication, or in patients that cannot tolerate these medications. www.fda.gov /hearthealth/treatments/medicaldevices/cardiacablationcatheter.html

What you should know about Catheter Ablation Catheter ablation (a-blay-shun) is a procedure used to selectively eliminate (damage or get rid of) the heart cells causing the arrhythmia. Ablation of the rapidly firing spot (focus) in the atria that is “triggering” the atrial fibrillation. Ablation is designed to permanently cure your arrhythmia, or if that is not possible, to make them less frequent, slower, and better tolerated. www.brighamandwomens.org /cvcenter/Patient/catheterablation.asp

Medtronic catheter ablation is a painless, outpatient procedure involving local anesthesia Ablation can be done by either using a catheter or during open-heart surgery that is being done for another medical condition. Catheter ablation is a painless, outpatient procedure involving local anesthesia. Kinds of Catheter and Surgical Ablation Procedures for Atrial Fibrillation and Atrial Flutter www.medtronic.com /tachy/patient/treatment_ablation.html

ACC/AHA Clinical Competence Statement on Invasive Electrophysiology Studies, Catheter Ablation, and Cardioversion The performance of catheter ablation requires the ability and dexterity to successfully manipulate catheters in all locations of the heart to achieve adequate contact between the catheter and the myocardium to create curative lesions. The indications, contraindications, and complications for catheter ablation are largely derived from the ACC/AHA guidelines for clinical intracardiac electrophysiological and catheter ablation procedures The cost of catheter ablation, although not trivial, is less over time than the cost of alternatives such as medical therapy or surgical interventions www.acc.org /Clinical/competence/invasive/catheter.htm

Invasive Procedures - Catheter Ablation Catheter ablation is a non-surgical technique used to eliminate alternate pathways present in the heart that interfere with the normal conduction and cause arrhythmias (abnormal heartbeats). The catheter ablation is performed in the Electrophysiology Laboratory and may take three to six hours. Once the area of the heart has been defined through catheter mapping, a special ablation catheter is placed at the site of the abnormal pathway. www.advocatehealth.com /system/info/library/articles/heartcare/invasive/cathabl.html

SIR - Radiofrequency Catheter Ablation (RFA) Catheter ablation is a technique in which a thin tube, or catheter, is inserted through the skin or threaded through the blood vessels to the site of disease. RFA and other catheter ablation procedures often are performed without surgery by interventional radiologists. *Catheter ablation also can be performed by surgeons as a surgical procedure called intra-operative catheter ablation. www.sirweb.org /patPub/radiofrequencyAblation.shtml

Radiofrequency catheter ablation for atrial fibrillation Treatment Overview, Eastern Carolina Radiofrequency catheter ablation of the AV node is occasionally used when persistent chronic atrial fibrillation does not respond to treatment with medication and symptoms continue to be bothersome. Targeted radiofrequency ablation of the pulmonary veins or other tissues that generate irregular electrical impulses (foci) is often used for paroxysmal atrial fibrillation in people who do not wish to take medication for the rest of their lives. After AV node ablation, a permanent pacemaker is needed to regulate the heart rhythm and continued anticoagulation therapy is needed. www.uhseast.com /114053.cfm

Ablations Catheter ablation is a technique whose purpose is to destroy (ablation means "to eliminate or remove") abnormal heart tissue that is causing an arrhythmia. Catheter ablation is used primarily to treat people who have problems with heart racing or rapid beating of their heart. If the ablation catheter must be placed on the left side of the heart where blood flows on the way to being pumped out to the rest of the body, there is a small risk that blood clots could form on the catheter or at the site of each ablation burn. www.londoncardiac.ca /pages/ablt.htm

Heart1.com - Catheter Ablation Catheter ablation causes scar tissue to form on the pathways leading from the part of the heart that is sending the unwanted messages. Catheter ablation is a last resort for treating arrhythmias, particularly Atrial fibrillation,. Once the location of the pathway has been determined, the ablation catheter will be inserted at the site. www.heart1.com /care/procedure20.cfm/4

Catheter Ablation Catheter ablation refers to the destruction of small parts of arrhythmia circuits using a specially designed wire, or catheter, to search out the circuit and deliver a small burn in the heart to a part of the circuit. The most common side effects associated with catheter ablation are those encountered with any IV insertion, including bleeding at the site when the catheter is removed, infection, blood clot formation within the vessel, and bleeding under the skin with formation of a hematoma. A catheter-a long, thin, plastic-coated wire with several metal contacts on it-is guided to the location of the circuit after the physician has determined what type of arrhythmia is present. www.txai.org /edu/arrtreat/ablation.htm

Catheter Ablation for Tachycardia: Dissenting Opinon Catheter Ablation for Tachycardia: My Experience as a Patient. Catheter Ablation for Tachycardia: My Experience as a Patient Ablation is a highly unusual treatment in that it is not medically necessary, yet has become mainstream medical practice as "first-line therapy." The procedure does have benefits and risks, as you pointed out. www.timberwoof.com /surgery/dissent.html

Postgraduate Medicine: Clinical Cardiac Electrophysiology Symposium: Catheter ablation for atrial flutter and fibrillation On the basis of these studies, radiofrequency catheter ablation can be considered an alternative for patients with atrial flutter in whom medical therapy is undesired, unsuccessful, or poorly tolerated. dvances in catheter ablation therapy have led to a widespread increase in its use in management of arrhythmias. The procedure involves ablation of the compact AV node and insertion of either a single-chamber pacemaker (in chronic atrial fibrillation) or a dual-chamber pacemaker (in paroxysmal atrial fibrillation). www.postgradmed.com /issues/1998/01_98/kosinski.htm

Catheter Ablation for Atrial Fibrillation In conclusion, after catheter ablation for atrial fibrillation, long term restoration of sinus rhythm, without the use of antiarrhythmic drugs, resulted in significant improvement in left ventricular function, exercise capacity, symptoms, and quality of life. By Ashley Starkweather, B.S. and Asher Kimchi M.D. Bordeaux-Pessac, France — In a study of 58 patients with atrial fibrillation and congestive heart failure, catheter ablation was found to improve cardiac function, quality of life, and exercise capacity by restoring and maintaining sinus rhythm. The results of the study showed an improvement in cardiac function after establishing and maintaining sinus rhythm from catheter ablation. www.cardiologyonline.com /journal_articles/Cather_ablation.htm

New Device Approval - NAVISTAR and CELSIUS THERMOCOOL Irrigated Deflectable Diagnostic/Ablation Catheter Once the ablation catheter is in place, the doctor turns on the energy from the generator to heat the tip of the ablation catheter. The ablation catheter end outside the body is connected to the electrical system that allows the physician to view the beating heart on a screen. The ablation catheter is also connected to a generator that delivers radiofrequency (RF) energy to the tip of the catheter in the heart. www.fda.gov /cdrh/mda/docs/p030031.html

Catheter Ablation of Arrhythmias -- Miller and Zipes 106 (25): 203 -- Circulation Catheter Ablation of Arrhythmias -- Miller and Zipes 106 (25): 203 -- Circulation A catheter with a large electrode at its tip is in contact with the focus; after ablation (right), the area of the focus has been damaged and is no longer firing. use of a heart catheterization technique called catheter ablation circ.ahajournals.org /cgi/content/full/106/25/e203

Ivanhoe's Medical Breakthroughs - Catheter Ablation Improves Heart Function Catheter ablation is a non-surgical technique used to eliminate alternate pathways in the heart that can cause abnormal heartbeats. French researchers evaluated 58 patients with congestive heart failure who were undergoing catheter ablation for atrial fibrillation. Authors conclude, "Restoration and maintenance of sinus rhythm by catheter ablation without the use of drugs in patients with congestive heart failure and atrial fibrillation significantly improves cardiac function, symptoms, exercise capacity, and quality of life." www.ivanhoe.com /channels/p_printStory.cfm?storyid=10066

Catheter Ablation for Asymptomatic Ventricular Preexcitation: Not Yet - Journal Watch Cardiology Catheter ablation was successful in all 37 patients. A randomized study of prophylactic catheter ablation in asymptomatic patients with the Wolff-Parkinson-White syndrome. Catheter Ablation for Asymptomatic Ventricular Preexcitation: Not Yet cardiology.jwatch.org /cgi/content/full/2004/123/1

Clinical Trial: Catheter Ablation Registry To assess factors associated with safety and efficacy of catheter ablation using direct current or radiofrequency energy for the management of patients with drug and/or pacemaker resistant cardiac arrhythmias. Catheter ablation has been developed as a nonpharmacologic, closed-chest alternative for the management of these patients. Data were collected prospectively from sixteen clinical centers in the United States and Europe on attempted catheter ablation of the atrioventricular junction, accessory atrioventricular pathways and ventricular tachycardia. clinicaltrials.gov /show/NCT00005195

HealthLINK: Cardiac: Gender differences in RF catheter ablation therapy - Yale-New Haven Hospital Radiofrequency catheter ablation treatment has been available for more than a decade, and it has proven to be a very safe, very effective therapy for people with cardiac rhythm disturbances. Researchers have found that women with heart arrhythmias are referred for radiofrequency (RF) catheter ablation therapy significantly later than male patients. Significant gender-related differences in radiofrequency catheter ablation therapy, Journal of the American College of Cardiology, v. www.ynhh.org /healthlink/cardiac/cardiac_11_03.html

University of Chicago Hospitals: Medical Care & Radiofrequency Catheter Ablation Radiofrequency catheter ablation revolutionized the treatment of many types of cardiac arrhythmias. Ablation can be performed during surgery if the person is also having surgery for other types of heart problems. While in the heart, the catheter is used to locate the arrhythmia source, which is then eliminated by high frequency radio waves. www.uchospitals.edu /specialties/heart/services/arrhythmias/medical.html

Ablation - Page 1 - HeartCenterOnline: The nonsurgical method of ablation involves inserting a thin tube catheter through a blood vessel (in the upper thigh, wrist or arm) and all the way up to the heart. (Radiofrequency Ablation, Catheter Ablation, Surgical Ablation, Radiofrequency Catheter Ablation, AV Node Ablation) This procedure is sometimes called catheter cardiac ablation, radiofrequency ablation, cardiac ablation or just ablation. heart.healthcentersonline.com /arrhythmiatreatment/ablation.cfm

Study Proves Catheter Ablation Safe For Patients Catheter ablation has become a standard therapy for SVT which is an arrhythmia, or abnormal heart rhythm including such specific conditions as atrial fibrillation, AV nodal re-entrant tachycardia, and Wolff-Parkinson-White syndrome. A recent study published in Pacing and Clinical Electrophysiology (PACE) determined that the use of catheter ablation to treat supraventricular tachycardia (SVT) is not detrimental to patients. This research, supported in part by the National Institute of Health and led by Steven M. Markowitz at The New York Hospital-Cornell Medical Center assessed the function of cardiac nerves in patients undergoing catheter ablation with radiofrequency energy. www.sciencedaily.com /releases/2005/02/050201102101.htm

UpToDate Patient information: Radiofrequency catheter ablation Catheter ablation of accessory pathways, atrioventricular nodal reentrant tachycardia, and the atrioventricular junction: Final results of a prospective, multicenter clinical trail. Catheter ablation for AV nodal reentrant tachycardia (junctional reciprocating tachycardia) — Radiofrequency catheter ablation is a procedure that is performed to correct a disturbance in heart rhythm. patients.uptodate.com /topic.asp?file=hrt_dis/9779

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