An implantable cardioverter-defibrillator (ICD) is a small device powered by a battery, implanted in the chest. Its primary function is to detect and halt irregular heartbeats, known as arrhythmias, by continuously monitoring the heartbeat and delivering electric shocks when necessary to restore a regular heart rhythm.
An ICD may be recommended if you have a dangerously fast heartbeat, such as ventricular tachycardia or ventricular fibrillation. It may also be prescribed if you are at high risk of experiencing dangerous irregular heartbeats, often due to a weakened heart muscle.
It's important to note that an ICD is different from a pacemaker, which is designed to prevent dangerously slow heartbeats.
An ICD, or implantable cardioverter-defibrillator, is a type of cardiac therapy device. There are two primary types:
A traditional ICD is surgically implanted in the chest, with wires (leads) connecting to the heart.
Beneath the skin on the side of the breast, beneath the armpit, is a subcutaneous ICD (S-ICD). It utilizes a sensor, known as an electrode, which runs along the breastbone. Unlike the traditional ICD, the S-ICD does not directly contact the heart. It is larger compared to the traditional ICD.
Following are the noticeable symptoms of arrhythmia include the following:
Following are the diagnostic tests that are used before going to surgery:
Electrocardiogram (ECG or EKG): An electrocardiogram (ECG or EKG)is performed to check the heartbeat. Sticky patches called electrodes are placed on the chest, and sometimes on the arms and legs. Wires connect the electrodes to a computer, which displays or prints the test results. An ECG can show if the heart is beating too fast or too slowly.
Echocardiogram: It is an imaging test that uses sound waves to create moving pictures of the heart. It shows the size and structure of the heart and how blood flows through it.
Holter Monitoring: A Holter monitor is a small, wearable device that keeps track of the heart rhythm over 1 to 2 days. It can detect irregular heart rhythms that an ECG might miss.
Event Monitor: An event monitor is a portable ECG device intended to be worn for up to 30 days or until you experience an arrhythmia or symptoms. You typically press a button on the device when symptoms occur.
Electrophysiology Study (EP Study): An electrophysiology study is used to confirm a diagnosis of a fast heartbeat and to identify the area in the heart causing an irregular heartbeat.
The patient will go home on the day post-ICD procedure.
The area where the ICD was placed got swollen and became tender for some days or weeks. The doctor might prescribe pain medicine, Avoid taking aspirin and ibuprofen. They might increase the risk of bleeding.
Patients should avoid sudden movements for about eight weeks after getting an ICD. Patients should also limit other activities such as Driving. The doctor will provide you with some instructions regarding your movement and other daily activities.
Your doctor might also forbid you from doing any energetic sports activities that may lift the left arm above the shoulder. for instance, golf, tennis, swimming, bowling, vacuuming, and Heavy lifting.

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Interventional Cardiologist
Greater Noida, India
20+ of experience
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Cardiologist
Delhi, India
14 of experience
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Cardiologist
Delhi, India
17 of experience
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Q: Will ICD completely cure the heart rhythm problems?
A: No, it cannot treat the problem permanently
Q: How often does the doctor check the ICD?
A: Depending upon the intensity of the patient’s problem, the checkup can vary from 2 months to 4 months and in some cases even 6 months.
Q: What is the cost of ICD?
A: Implantable cardioverter defibrillator cost can vary from $30000 to $50000 in the Western countries. But the ICD heart device cost in India and other medical tourism destinations is much less than the Western countries.

Cardiologist
21 Years of Experience
Dr. Naresh Kumar Goyal is highly trained as a cardiologist with exposure in virtually all aspects of cardiology. He qualified with an MD in internal medicine in 1999 from SMS Medical College, Jaipur, and served in the Cardiology Department as an honorary resident. From this stage, he also started with training in the temporary pacing of the pacemaker as well as interventional services. View More