Are you aware of the ICD device that protects your heart rhythm? (Implantable Cardioverter Defibrillator)

Sometimes our heart beats very fast, or very fast, right? This kind of irregular heartbeat (arrhythmia) can sometimes be a sign of a dangerous situation. So, today we are talking about a small, but very powerful medical device that can help save lives in such situations. We call this an ICD, which stands for Implantable Cardioverter Defibrillator.

What exactly is ICD?

Simply put, an ICD is a medical device that is implanted under the skin of your chest, through a minor surgical procedure. It has two main parts. One is a small battery, like a stopwatch. The other is some thin wires that go from this battery to the chambers of your heart. We also call these wires ``leads``.

This battery-powered device continuously monitors your heart rate and rhythm . Imagine, if your heartbeat suddenly becomes dangerously irregular, this little device can deliver the electric shock needed to correct it. That electric shock is carried to the heart through wires called ``leads.''

An ICD is mainly used for:

• Correct irregular heartbeats (arrhythmias). For example, conditions where the heart beats too fast (tachycardia) or too slow (bradycardia).
• Prevent sudden cardiac arrest.
• Collect data about your heart function and help your doctor make treatment decisions.

What is the difference between an ICD and a Pacemaker?

Many people confuse these two devices. There is a clear difference between the two.

However, it is important to remember that some newer ICDs can also function as a pacemaker. Your doctor will decide which type is right for you.

Who needs an ICD device?

An ICD device may be needed for people with certain heart rhythm conditions that are difficult to control with other treatments. The table below shows some of these conditions.

How is the surgery to implant an ICD device performed?

This surgery is usually done in a hospital. It takes several hours. It is performed by a cardiac surgeon or an electrophysiologist.

Preparation before surgery

Your doctor will give you the following instructions before surgery:

• Fast for a few hours before surgery (do not eat or drink anything other than water).
• Blood, urine tests, and an ECG will be performed to see if you are in a healthy condition for surgery.
• If you have a bleeding disorder or are taking blood-thinning medication, be sure to tell your doctor .
• Also inform them if you have any allergies to things like contrast dye, iodine, or medications.
• If you have other illnesses such as asthma, diabetes, or kidney disease, inform the medical team about them as well.

During surgery

This is often done through a method called a ``transvenous approach.'' This means that a small incision is made near the collarbone and wires called ``leads'' are inserted through a vein into the heart. Sometimes, open-heart surgery may also be required.

These are the steps in which surgery usually takes place:

1. Medication is given through an ``IV'' to make you comfortable or to put you under anesthesia and sleep.

2. The incision site will be numb.

3. A small incision is made near the collarbone, chest, or abdomen.

4. Wires are inserted into the chambers of the heart through a major vein.

5. The ICD battery is placed in a small space created under the skin.

6. The wires are connected to the heart and the ICD.

7. Check to see if the device and wires are connected properly and working properly.

8. The incision is sewn closed.

9. The system will be checked again before you are sent to the ward.

After surgery and living with an ICD

After surgery, you may feel some tiredness and some pain at the incision site. This can be controlled with painkillers. Most people can go home the day after surgery.

How does the shock from the ICD feel?

This is a problem that many people have. The ICD can deliver both low-energy and high-energy shocks.

• A low-energy shock feels like a flutter or tapping sensation in the chest.
• A high-energy shock is given in more serious cases. It may be a little painful for a moment. It may feel like a blow to the chest.

Usually, one shock will restore the heart's rhythm. However, some people may receive several shocks within 24 hours. If you receive several shocks in a short period of time (for example, three or more), it may be an emergency called an 'electrical storm'. If this happens, you should go to the nearest hospital's emergency department (ETU) immediately. This may indicate a serious heart problem or a malfunction of the ICD.

Things to consider when living with an ICD

If you have an ICD, always carry an ID card in your purse that says it. It will be a great help to medical staff if you are unable to communicate in an emergency.

Also, you should tell all healthcare workers, including your doctors, dentists, and technicians who perform tests such as MRIs, that you have an ICD, as some equipment can interfere with the ICD.

Things that can interfere with the ICD

Some technological devices may interfere with the functioning of the ICD. Ask your doctor if you need to be careful when using such things.

• Antitheft systems in stores
• Some types of radios (CB radios, ham radios)
• Electric fences
• Headphones
• Vehicle battery chargers, jumper cables
• Machines containing strong magnets
• Metal detectors in places like airports
• Some medical tests, such as MRI

When to call your doctor immediately

If you experience any of the following symptoms after surgery, it could be a sign of infection. If this happens, notify your doctor immediately.

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