SVT (Supra Ventricular Tachycardia)

There are several causes of Svt. It often arises from an extra circuit in the heart which is present since birth activates later in life. This circuit may be in the middle of the electrical system next to the AV node( dual AVnodes), on the right or left side of the heart, connecting The upper chamber to the lower chamber. It also may be a single source in an upper chamber of the heart(atrial tachycardia)

Diagnosis is typically by electrocardiogram (ECG), holter monitor, or event monitor. Blood tests may be done to rule out specific underlying causes such as hyperthyroidism or electrolyte abnormalities.[4]

Specific treatments depend on the type of SVT.
This can include no treatment, medication or ablation.

Vagal maneuvers or a procedure known as catheter ablation may be effective in certain types. For atrial fibrillation calcium channel blockers or beta blockers may be used. Long term some people benefit from blood thinners such as aspirin or warfarin.[5] Atrial fibrillation affects about 25 per 1000 people,[6] paroxysmal supraventricular tachycardia 2.3 per 1000,[7] Wolff-Parkinson-White syndrome 2 per 1000,[8] and atrial flutter 0.8 per 1000.
Extracted from Wikipedia

For pacemakers or defibrillators
Risks of procedure are mainly infection - if that occurs, the entire system must be removed, injury to the lung requiring placement of a chest tube for 1-2 days, injury to the heart muscle or lead dislodgement requiring repositioning. The risk of any of these is less than 1 percent.

The risk of SVT ablation or VT ablation is injury to a vein in the groin which can require local surgery, injury to the heart muscle or ending up needing a pacemaker. The risk of any of these is well below 1 percent.

We are sometimes referred to as the electricians of the heart. We treat all types of heart rhythm disorders: hearts that beat slowly, quickly or erratically. We evaluate patients with palpitations to help diagnose the etiology of palpitations and then cure the underlying problem. In addition to palpitations, shortness of breath, fatigue, anxiety, dizziness (syncope) are some other manifestations of arrhythmia. Common arrhythmias that we deal with are atrial fibrillation, supraventricular tachycardia (SVT) and ventricular tachycardia (VT). We usually try medication to treat arrhythmias but when medications are insufficient we may recommend an ablation procedure. There are different types of ablation but they all aim at eliminating the source of the arrhythmia. Our practice is at the forefront of technology and we use the newest techniques and equipment available to provide the safest and most effective therapy to our patients. We implant and manage all types of pacemakers and defibrillators. We have one of the largest and most efficient remote monitoring programs in the state of Florida. Remote monitoring allows us to watch over and treat our patients in between their office visits. At Cardiac Arrhythmia Services we have 3 cardiac electrophysiologists, 2 physician assistants, 2 remote monitoring technicians, 3 nurses and a staff of 19 people who all work together on daily basis to ensure that our patients get the best care possible.