Ablation by lanyuehua


									Catheter Ablation

Catheter ablation is a medical procedure used to treat some arrhythmias. An arrhythmia is a
problem with the speed or rhythm of the heartbeat.

During catheter ablation, a long, thin, flexible tube is put into a blood vessel in your arm, groin
(upper thigh), or neck. This tube is called an ablation catheter. It is then guided to your heart
through the blood vessel. A special machine sends energy through the catheter to your heart.
This energy finds and destroys small areas of heart tissue where abnormal heartbeats may
cause an arrhythmia to start.


The heart’s electrical system controls the speed and rhythm of your heartbeat. With each
heartbeat, an electrical signal spreads from the top of the heart to the bottom. As it travels, the
electrical signal causes the heart to contract and pump blood.

The process repeats with each new heartbeat. A problem with any part of this process can
cause an arrhythmia.

Catheter ablation is one of several treatments for arrhythmia. Your doctor may recommend it

    •   The medicines you take don’t control your arrhythmia.
    •   You can’t tolerate the medicines your doctor has prescribed for your arrhythmia.
    •   You have certain types of arrhythmia, which can be treated easily with ablation with
        high success rate and low complication rate.

Though few, catheter ablation has risks. These include but are not limited to bleeding,
infection, and pain where the catheter is inserted. More serious problems include blood clots
and puncture of the heart. Your doctor will explain the risks to you.


Catheter ablation alone doesn’t always restore a normal heart rate and rhythm. Other
treatments may need to be used as well. Also, some people who have the procedure may
need to have it done again. This can happen when the first procedure doesn’t fully correct the

                                                              5975 Sunset Drive, Penthouse 802,
                                                                         South Miami, FL 33143

National Library of Medicine (NLM)

National Heart Lung and Blood Institute

                                          5975 Sunset Drive, Penthouse 802,
                                                     South Miami, FL 33143

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