SVT Ablation
SVT (supraventricular tachycardia) ablation is a minimally invasive medical procedure that is performed using catheter-based techniques. The procedure is typically performed by an electrophysiologist, a doctor who specializes in the electrical activity of the heart.
During the procedure, the patient is usually given a mild sedative and local anaesthesia to numb the area where the catheter will be inserted. The electrophysiologist then inserts a small, flexible tubes called catheters into a blood vessel in the groin or arm and guides it to the heart. Once the catheters are in place, the electrophysiologist will normally stimulate the heart using a special sequence of extra beats to induce the SVT. This will allow him to understand its precise mechanism, and then use specialized 3D mapping equipment to map the electrical activity in the heart and identify and locate the area responsible for the SVT. Then, using either radiofrequency energy or cryoenergy, the electrophysiologist applies heat or cold to the targeted area of heart tissue, creating a small lesion or scar. The scar tissue disrupts the abnormal electrical pathway that was causing the SVT, allowing the heart to beat normally again.
The entire procedure typically takes normally 2-3 hours to complete. After the procedure, patients will typically need to stay in the hospital for a short period of time for observation, but can usually go home the same day or the following day. Patients will usually need to avoid strenuous activity or carrying heavy weights for few days after the procedure before returning to normal daily activities. It’s important for patients to follow their doctor’s instructions for post-procedure care and to schedule follow-up appointments to monitor their recovery and the effectiveness of the procedure.
The success rate of SVT ablation is high, with most patients experiencing a significant improvement or complete resolution of their symptoms. The success rate may vary depending on the type and location of the arrhythmia being treated, as well as other patient factors such as age and heart anatomy. However, the overall success rates are generally very high reaching >95% in most cases. In some rare cases, a second ablation procedure may be necessary if the first procedure does not completely eliminate the arrhythmia
The procedure is generally considered safe, with a low risk of serious complications (often <1%). Some of the potential risks and complications associated with the procedure, include bleeding, damage to blood vessels or main heart nerve, and blood clots. Patients may experience some discomfort or soreness in the groin or at the site of catheter insertion, but this usually resolves within a few days.
SVT ablation is a highly effective treatment option often leading to complete medication-free cure from SVT. Hence, it is now considered a first line treatment for these patients. Patients should discuss the risks and benefits of the procedure with their electrophysiologist to help them make the right decision.