sydänohjaimien

Sydänohjaimet, commonly known as pacemakers, are small electronic devices implanted in the body to help regulate abnormal heart rhythms. They are primarily used to treat bradycardia, a condition where the heart beats too slowly, and some forms of heart block, where the electrical signals traveling through the heart are impaired. The device consists of a pulse generator containing a battery and a small computer, and one or more leads, which are wires that carry electrical signals between the generator and the heart muscle.

When a pacemaker detects that the heart rate is too slow or that there is a disruption in the heart's electrical activity, it sends a tiny electrical impulse to the heart. This impulse causes the heart muscle to contract, effectively pacing the heart at a desired rate. Modern pacemakers are sophisticated and can be programmed to respond to the body's changing needs, for example, increasing the heart rate during physical activity.

The implantation procedure is typically minimally invasive, performed under local anesthesia. A small incision is made, usually below the collarbone, and the pulse generator is placed under the skin. The leads are then guided through veins into the heart chambers. After implantation, regular check-ups are necessary to monitor the pacemaker's function and battery life. These devices significantly improve the quality of life and longevity for individuals with certain cardiac conditions.