1. Implantable cardioverter defibrillator (ICD)
Defibrillator Implant-Defibrillation
Implantable cardioverter defibrillators (ICD), or simply just
defibrillators are devices that are designed primarily to carry out
anti-tachyarrhythmia therapy (tachyarrhythmimia and
tachyarrhythmia therapy will be explained in next articles).ICD is
a device used to detect and instantly stop the malignant heart
rhythm disorders. The system consists of a housing containing a
battery and electronic circuit and a catheter containing electrodes
that are placed in the heart. This process is known as
defibrillation. Implantable cardioverter defibrillator’s housing is
placed under the skin in the area under the (usually left) clavicle.
What kind of defibrillator a patient will get and how it will be set
primarily depends on patient’s medical history, physical condition, condition of heart and a
condition of cardiac muscle cells.
Implantable cardioverter defibrillator can instantly recognize a heart rhythm disorder (most
often it is an accelerated working ventricular – ventricular tachycardia or heart flutter –
ventricular fibrillation) and immediately respond to with stimulation (by pulses that interrupt rapid
heartbeat) or with an electrical shock (by defibrillation). The success of Implantable cardioverter
defibrillation intervention is very high, above 98%. In addition, the ICD serves as a “normal”
electrostimulator, pacemaker, and its intervention can prevent slow beats.
In addition to therapeutic intervention, the ICD’s memory stores a series of data on the rhythm
of the patient, which allows further treatment options (correction of drug therapy – plavix,
aspirin, the procedure known as “Ablation”, the programming of the device, etc.). Implantable
cardioverter defibrillator operates continuously, 24 hours a day. The ICD’s placement surgery
procedure is same as cardiac pacemaker surgery and biventricular pacemaker surgery
procedure.
Implantable Cardioverter Defibrillator Surgery
ICD placing (defibrillation) is a small surgical procedure under local anesthesia. Surgery is in
place for this specialized, electrophysiological laboratories. Before surgery patient intravenously
gets an antibiotic and an anesthetic. The implantable cardioverter defibrillator surgery is done
under the full awareness of a patient.
On a leg groin incision is made ​​to enter into a vein through which the wire is placed in the heart
while a generator is placed below the collarbone with a small incision. Then wires and generator
are connected. At the end of the installation the patient is pun under the general anesthesia in
order to test the ability of the device to stop malicious rhythm disturbance, ventricular fibrillation.
By testing device, ventricular fibrillation is manually caused, the device recognizes and
interrupts it. A patient can typically go home the next day. For precautions on this matter you

2. can educate yourself on Blood Types and ABO blood group system article.
The device control is performed at certain intervals (every 6 months) or after the patient noticed
an intervention (electric shock most people can recognize good).
Some patients with heart failure may benefit from a combination of cardiac resynchronization
therapy (CRT) and an implantable cardiac defibrillator (ICD). These devices combine
biventricular pacing with anti-tachycardia pacing and internal defibrillators to deliver treatment
as needed.
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