Implantable cardiac pacemakers:

Implantable cardiac pacemakers:

An implantable cardiac pacemaker is a small device that is surgically implanted under the skin of the chest to help regulate the heartbeat. It works by sending electrical impulses to the heart muscle to help it beat in a regular rhythm. This type of device is typically recommended for people with heart rhythm disorders, such as bradycardia, that slow the heartbeat and cause symptoms such as fatigue, dizziness, and fainting. The goal of an implantable cardiac pacemaker is to improve heart function, reduce symptoms, and prevent further complications.

Why is it needed?

The need for implantable cardiac pacemakers may arise because of the following:

  • Bradycardia, a slow heartbeat
  • Heart block, a condition where electrical signals between the heart's chambers are disrupted
  • Congenital heart defects
  • Cardiac arrest caused by a heart rhythm disorder
  • After a heart attack to prevent future rhythm problems


The signs and symptoms include:

  • Fatigue or weakness
  • Dizziness or lightheadedness
  • Shortness of breath
  • Fainting or near-fainting episodes
  • Chest pain or discomfort


The diagnosis procedure includes following tests:

  • Physical exam and medical history
  • Electrocardiogram (ECG) to measure the heart's electrical activity
  • Holter monitor to record heart activity over a 24-hour period
  • Echocardiogram to visualize heart structure and function
  • Tilt table test to evaluate symptoms such as lightheadedness or fainting

Diagnosing a heart rhythm disorder typically involves a thorough physical exam, medical history review, and various tests to evaluate heart function and identify any underlying causes. The tests used may include an electrocardiogram, holter monitor, echocardiogram, and tilt table test, among others. Based on the diagnosis, an implantable cardiac pacemaker may be recommended to improve heart function and reduce symptoms.

Note: Evaluate implantable Cardioverter-Defibrillators (AICD’s) under DC 7011.

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