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Frequently Asked Questions

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1 Why do I need the S-ICD System if I have already experienced sudden cardiac arrest (SCA)?

Although you have already experienced SCA, you are still at risk for having another episode. It is estimated that about 95% of people who have a SCA without an ICD die before reaching hospital.

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2 What are an ICD and an S-ICD?

An implantable defibrillator, commonly known as an ICD (implantable cardioverter defibrillator), is a device designed to administer lifesaving defibrillation (an electric shock) in the event of sudden cardiac arrest (SCA). When an ICD detects a dangerously fast heart rhythm, it sends an electrical pulse (electric shock) to the heart to…

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3 When is an S-ICD needed?

If you are at risk of sudden cardiac arrest (SCA), your doctor may recommend a totally subcutaneous implantable defibrillator, called the S-ICD System. The S-ICD System is a new device that sits just under your skin — constantly monitoring your heart — ready to deliver treatment if SCA occurs.

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4 What is sudden cardiac arrest (SCA)?

Sudden cardiac arrest (SCA) occurs when the heart suddenly stops beating because of an underlying irregular or abnormal heart rhythm (arrhythmia). SCA can happen at any time to anyone of any age. SCA is a serious condition, which if not treated within minutes, can lead to death. PBB p2 It…

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5 What is an arrhythmia?

Arrhythmia is an irregular or abnormal heart rhythm that results from a problem with the electrical system of the heart. Some arrhythmias can be life-threatening. These dangerous arrhythmias increase the heart rate to such an extent that the heart is unable to pump blood adequately throughout the body. Ventricular tachycardia…

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6 Can the S-ICD tell the difference between non fatal arrythmias like AF or SVT and life threatening ones like VF?

Cardiac Arrhythmias can be malignant and non-malignant; the malignant arrhythmias are the ones that need to be treated via a shock to restore the normal cardiac rhythm. The S-ICD System is able to distinguish these 2 categories of arrhythmias and then decide if a shock is needed or not.  

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7 When could an S-ICD be an option?

The S-ICD System is intended to provide defibrillation therapy for the treatment of life-threatening ventricular tachyarrhythmias. The S-ICD System is an option for most patients when their doctor recommends having an ICD fitted. Patients who have symptomatic bradycardia (a slow heart rate) or spontaneous, frequently recurring VT that is reliably…

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8 Can I choose which type of device I want to have fitted and can I make this choice myself?

Unless you have had an ICD/S-ICD implanted during emergency surgery, you can choose which type of device you want to have fitted. However, it is important that you make this choice together with your doctor. Your doctor can advise which device is best suited to you and provide you with…

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9 Is it normal to feel anxious or worried because I have this choice?

It is entirely normal for some patients to feel anxious or worried about choosing which device to have fitted. You should discuss with your doctor any concerns you have about choosing the device. It is important to note that you do not have to make the choice yourself. Your doctor…

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10 How does the S-ICD System compare to a traditional ICD?

With a traditional ICD device, one or more electrical wires are fed through a vein into the heart and across the heart valve. Once the wires are in place, they are attached to the heart wall. The subcutaneous placement of the S-ICD System does not require electrical wires in the…

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