Radiofrequency ablation is where one or more flexible, thin tubes (catheters) are guided via x-ray through the blood vessels to abnormal heart muscle tissue. Once there, a burst of radiofrequency energy destroys very small areas of the tissue, which give rise to abnormal electrical signals causing rhythm disturbances.
The 24-hour Holter monitor is an electrocardiographic recording device that utilizes electrodes, which the patient wears for a 24-hour period, including during sleep and exercise. The Holter monitor captures the patient’s entire heart rhythm over a 24-hour period so that it can be analyzed.
An event monitor is a similar wearable device that the patient takes home for a period of time. Except rather than continuously recording, the patient manually starts on stops the recoding when he or she suddenly begins to experience symptoms of palpitations or heart racing. The recording of the cardiac event can be transmitted remotely for analysis.
Pacemakers are miniature devices that can be implanted underneath the skin to monitor and provide control of a patient’s the heart rhythm. Pacemakers are particularly helpful in patients who suffer from heart rhythms which are abnormally slow. Typically, the pacemaker is placed under the skin of the front wall of the heart below the collarbone. Monitoring of the pacemaker is usually done remotely at home with periodic visits to the cardiologist's office.
Implanted cardioverter defibrillators (ICDs) are effective in stopping life-threatening arrhythmias and are the most successful therapy to treat ventricular fibrillation, a major cause of sudden cardiac death. An ICD is implanted under the skin near the heart and constantly monitors a patient’s heart rhythm. If it detects a very fast, abnormal heart rhythm, it delivers energy to the heart muscle causing it to beat in a normal rhythm.
