An implantable cardioverter-defibrillator (ICD) is an electronic device that constantly monitors your heart rhythm. When it detects a very fast, abnormal heart rhythm, it delivers energy to the heart muscle. This causes the heart to beat in a normal rhythm again. It can be either Single Chamber or Dual Chamber ICD. Ventricular tachycardia and ventricular fibrillation are two life-threatening heart rhythms that cause the heart to beat very fast. These conditions can be fatal if not treated immediately. Your doctor will recommend an ICD if you’ve had at least one episode of these heart rhythms or are at high risk of developing these types of heart rhythms.
The procedure takes about an hour. During this time you will be given some light sedation to help you relax and feel comfortable. You will be awake. An area below the collar bone will be numbed with local anesthetic and the cardiologist will make a small cut (approx 5-8cms) to insert the AICD. The leads are then guided through a vein into the heart and connected to the device. The skin is then sewn together and a small dressing is applied.