Surgical Procedures for Arrhythmias (Heart Rhythm Disturbances)
If other treatment methods have been unsuccessful, it is possible to cure some recurrent, life-threatening arrhythmias with a surgical procedure called ablation. When abnormal electrical circuits in the heart generate harmful rhythms, they can be located and destroyed. Ablation can usually be performed without making an incision in the chest. Your doctor reaches the heart by inserting wires and catheters (tiny tubes) into a blood vessel in the arm or leg.
During the procedure, the physician will try to induce the arrhythmia using small radiofrequency currents in various places inside your heart. This helps locate the exact area of malfunction and assures that the right area is treated. Here’s how it works:
In a special room filled with cardiology and x-ray equipment, you will lie on the table attached to intravenous lines and heart monitors. A blood vessel in your arm or groin will be sterilized, through which a wire used to locate and destroy the abnormal circuits is threaded. Using x-ray guidance, the cardiologist or radiologist will thread the wire through the vein and into your heart. While attached to an electrical sensing and current generating machine, the wired device will probe the heart's electrical circuitry until it finds the origin of the abnormal signals. A small cauterizing current or a burst of radiofrequency energy will then destroy the tiny area that is malfunctioning.
Corner Artery Bypass Surgery
Surgical Subendocardial Resection
In certain cases of a ventricular tachycardia, specific abnormalities within the heart muscle might be responsible for generating the arrhythmia. The removal of the scar tissue underneath the lining of the heart may prevent the arrhythmia from occurring.
This is a technique used to surgically treat atrial fibrillation that involves making several small incisions within the wall of the atria. This results in formation of scar tissue that ensures propagation of the electrical impulses in the proper direction.
Automatic Implantable Defibrillator
A tiny defibrillator can be
This device is
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National Heart, Lung, and Blood Institute website. Available at: http://www.nhlbi.nih.gov/ .
Last reviewed June 2008 by
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