Bradycardia is one of the most common diseases in the group of cardiovascular diseases.

In Vietnam, the first pacemaker implantation was performed in 1973, however, due to economic conditions, it was not until the 1990s that pacemaker implantation technology developed strongly. Currently, centers that are capable of implanting and programming pacemakers have increased significantly with the number of patients receiving implantation increasing year by year.

Today, there are many cardiovascular support devices for the treatment of heart diseases. One of the most popular cardiovascular devices is the pacemaker.

Over the last two decades, the implantation of permanent pacemakers has been growing. Advances in the treatment of heart disease have improved the quality of life of patients with severe heart failure, and reduced mortality and heart failure events. Pacemaker placement is one of the most successful and earliest non-pharmacological therapies in the management of bradyarrhythmias.

Arrhythmia is a general term for a number of conditions in which the heart's electrical activity is active. These activities may be subject to unusual disturbances: faster or slower than normal electrical activity.