When lifestyle changes and medications or treatments are no longer effective, your physician may recommend an implantable cardiac device (pacemaker) to help monitor and or regulate the rhythm of your heart. There are different types of implantable devices, and it depends on your diagnosis as to which type your physician will choose for you. South Seminole Hospital performs two types of device implantation, including pacemakers and Implantable Cardioverter Defribillators (ICDs). Pacemakers very simply regulate your heart's rhythm. ICDs shock the heart when it is beating too fast to prevent cardiac arrest.


A pacemaker literally sets the pace of the heart. This tiny device is implanted under your skin and is attached to your heart by tiny wires, or leads. The signals, or pacing pulses, are carried along these electrical leads to the heart stimulating the heart muscle to beat. It monitors and adjusts the heartbeat based on customized limits. If the heart rate is slower thanthe set low limit, an electrode sends an electrical current to the heart causing it to beat. If the heart rate is faster than the set high limit, no current is sent.

Implantable Cardioverter Defibrillator (ICD)

ICDs are small devices, about the size of a pager, that are surgically implanted just below the collarbone. It connects to your heart using tiny wires or leads and continuously monitors the heart's rhythm. When the heart beats too quickly, the ICD delivers a life-saving electrical current to restore the hearts normal rhythm and prevent sudden cardiac death. ICDs can also act as a pacemaker, when a slow heart rate is detected. ICDs monitor and adjust the heartbeat based on customized, high and low limits, and are similar to a pacemaker.

Consult your physician if you have any questions about pacemakers or heart disease. This procedure must be scheduled by your physician.

Hours of Operation: Monday - Friday 8:00 am - 4:30 pm
Location: South Seminole Hospital
Telephone: (407) 767-5847