A pacemaker is a small electronic device that helps regulate the heartbeat by sending electrical impulses to the heart muscle. It consists of a pulse generator and one or more leads (thin wires) that are threaded through veins into the heart chambers. Pacemakers are used to treat various heart rhythm disorders, including bradycardia (slow heart rate) and certain types of arrhythmias (irregular heartbeats).
Types of Pacemakers
There are different types of pacemakers, including:
Single-Chamber Pacemakers: These pacemakers have one lead and are used to regulate the rhythm of either the atria (upper chambers) or ventricles (lower chambers) of the heart.
Dual-Chamber Pacemakers: Dual-chamber pacemakers have two leads and can regulate the rhythm of both the atria and ventricles.
Biventricular Pacemakers (Cardiac Resynchronization Therapy): These pacemakers are used to treat heart failure by coordinating the contractions of the ventricles to improve heart function.
The Pacemaker Implantation Process
Before the procedure, you’ll undergo various tests and evaluations to assess your overall health and suitability for surgery. You’ll also receive anesthesia to ensure you’re comfortable and pain-free during the procedure. The surgeon makes a small incision in the chest and threads the pacemaker leads through veins into the heart chambers. The pulse generator is then implanted under the skin near the collarbone and connected to the leads. Once the pacemaker is implanted, its function is tested to ensure it’s working properly and effectively regulating the heartbeat.
Will I feel the pacemaker working?
Most people do not feel the pacemaker working, as the electrical impulses are very low voltage.
Can I undergo MRI scans with a pacemaker?
It depends on the type of pacemaker you have. Some pacemakers are MRI-compatible, while others may require special precautions.
Will the pacemaker limit my activities?
In general, having a pacemaker allows you to resume normal activities, but your healthcare provider may advise against certain activities that could interfere with the device.
Pacemaker implantation cardiac surgery is a safe and effective treatment option for individuals with heart rhythm disorders. While the thought of undergoing surgery may be intimidating, pacemaker implantation procedures are relatively routine and have a high success rate.