Supraventricular arrhythmias are relatively common rhythm disorders originating from the upper chambers of the heart. Depending on the heart rate, they are divided into two main groups - tachyarrhythmias and bradyarrhythmias. In addition to often causing unpleasant symptoms, some of them significantly impair the patient's quality of life and are associated with increased morbidity, mortality and healthcare costs. Antiarrhythmics and other drugs are often used in their treatment, but with limited effectiveness and numerous side effects. Advances in the field of cardiac electrophysiology have led to development of highly effective invasive treatments like catheter ablation and pacemaker implantation. Catheter ablation is a minimally invasive procedure during which the tissue responsible for the arrhythmia is selectively destroyed through heating or freezing, providing a potential cure or long-term relief of symptoms. Success rates of the procedure vary depending on the specific arrhythmia and patient characteristics, but are generally high, with a low risk of complications when performed by experienced operators. The most common supraventricular arrhythmias treated with this method include atrioventricular (AV) nodal reentrant tachycardia (AVNRT), AV reentrant tachycardia (AVRT) associated with an accessory pathway (AP), atrial fibrillation (FA), and atrial flutter. The foundation of invasive treatment for bradyarrhythmias is the implantation of a cardiac pacemaker, a small electronic device that continuously monitors the electrical activity of the heart and delivers electrical impulses as needed to stimulate the heart muscle, helping to maintain a regular heart rhythm, appropriate frequency, and good coordination between the atria and ventricles. The device consists of a generator that is surgically implanted under the skin, and one or more leads that are placed in the heart chambers through the veins, with a relatively low rate of procedure-related complications. Among rhythm disorders of supraventricular origin, sinus node dysfunction and high-degree AV block are the two most important indications for permanent cardiac pacing. Implantation of a pacemaker in these patients effectively alleviates symptoms, prevents syncope and sudden cardiac death, and significantly improves the quality of life.