What is it
An Implantable Cardioverter Defi brillator (ICD) is a battery-powered device placed under the skin or the muscle (usually on the anterior chest) connected to diff erent heart chambers with leads (cables, Fig 3).
It keeps track of your heart rate. If an abnormal fast heart rhythm (ventricular tachycardia or fi brillation) is detected, the device will deliver an electric shock to restore a normal heartbeat. If a slow heartbeat is detected, an electrical impulse sent through the leads will cause the heart to beat faster. ICDs can have one, two or three leads, which are placed in the right ventricle (the heart chamber that pumps blood to the lungs), right atrium (the heart chamber that collects blood from the heart) and ventricle or right atrium and right and left ventricle (the heart chamber that pumps blood to the body), espectively.
The last system is called Defi brillator with Cardiac Resynchronization Therapy and is implanted in specifi c patients with heart failure at high risk for sudden cardiac death. For some time, an entirely subcutaneous defi brillator system has been available (fi g. 4). The head/battery of the ICD is connected with a lead implanted on the anterior thorax, avoiding placement of any cable in the heart, therefore reducing specifi c complications related to the procedure. Patients are usually discharged 2 days after the operation.
Why a patient needs a ICD
An ICD is usually implanted when a patient has the following conditions:
Successful reanimation after ventricular fi brillation or ventricular tachycardia. A life-threatening condition in which the ventricles contract in a rapid, chaotic rhythm and cannot pump blood to the body
- Heart failure with reduced heart function. The heart is unable to pump blood eff ectively to meet the body’s metabolic needs and the risk to suddenly develop one of the above situations is high
- Specifi c inherited heart disease. Some patients are at risk for sudden cardiac arrest due to mutations in specifi c genes. Often the disease is inherited from a family member (long or short QT syndrome, Brugada syndrome, Arrhythmogenic right ventricular cardiomyopathy, hypertrophic
What we perform
All currently available 3D-Mapping Systems are used to treat the full spectrum of arrhythmias:
Ablation of simple (AV-Node-Reentrant-Tachycardia, AV-Reentrant-Tachycardia, Atrial Tachycardia, Typical Atrial Flutter) and complex (Atypical Atrial Flutter and Atrial fi brillation, Fig. 6) atrial arrhythmias Ablation of ventricular arrhythmias in structurally normal and abnormal hearts (Fig. 7) with epicardial access if needed Ablation in congenital heart disease.
- Type of service