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Doctor insights on: Implantable Defibrillators

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Dr. Andrew Lawrence
24 doctors shared insights

Implantable Defibrillators (Overview)

Implantable defibrillators are devices inserted into the heart that shocks the heart back into a normal rhythm in case of an arrhythmia.


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What is an implantable cardioverter defibrillator?

What is an implantable cardioverter defibrillator?

Life saver: An implantable cardioverter defibrillator (icd) system has leads (wires) that are inserted through the veins under the collarbone and threaded to the heart. The leads are attached to a box that goes under the skin. The box has a computer that continuously monitors the signals from your heart for a dangerous arrhythmia. If this occurs, the icd stops the arrhythmia by delivering an internal shock. ...Read more

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Dr. Andrew Lawrence
24 doctors shared insights

Implantable Defibrillators (Overview)

Implantable defibrillators are devices inserted into the heart that shocks the heart back into a normal rhythm in case of an arrhythmia.


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What can interfere with pacemakers and implantable defibrillators?

What can interfere with pacemakers and implantable defibrillators?

Pacemakers: Strong magnetic fields such as those used in security metal detectors and magnetic fields produced by large electric motors can interfere with pacemaker and defibrillator function. They may not necessarily turn a device "off" but can interfere with its programming. With only rare exceptions, patients with these devices need to avoid MRI scanners. Patients with these devices can have ct scans. ...Read more

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What benefit does the implantable cardioverter-defibrillator give to patients who have had a cardiac arrest or heart attack?

What benefit does the implantable cardioverter-defibrillator give to patients who have had a cardiac arrest or heart attack?

It may prevent death: Implantable cardioverter-defibrillators (icds) are used to treat ventricular tachycardia or ventricular fibrillation, which if untreated, may cause a fatal cardiac arrest. Icds can often quickly treat these conditions before permanent brain or heart damage can be done. Icds are not used to treat or prevent heart attacks, which are a "plumbing" issue. ...Read more

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How do you relieve pain from implantable cardioverter defibrillator surgery?

How do you relieve pain from implantable cardioverter defibrillator surgery?

Pain and AICD: Post-operative pain is normal but should not be excessive. First, what is the cause of the pain? If the surgical site is red, swollen, or oozing fluid, contact the implanting physician immediately. The problem could be serious. ...Read more

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Does getting hit with a tazer hurt someone with an implantable defibrillator?

Does getting hit with a tazer hurt someone with an implantable defibrillator?

No: There is a theoretic risk, but it is small. The device produces a strong current for only a few seconds. The current is not sufficient to damage the icd directly. It could cause the icd to falsely detect an arrhythmia, but not one of sufficient duration to have the icd respond. Reports in humans and experimental testing in animals have not shown significant adverse effects. ...Read more

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Why are implantable defibrillators placed on the left side of the chest instead of the right side?

Why are implantable defibrillators placed on the left side of the chest instead of the right side?

Most in left side: Because the electricity to defibrillate flows between the electrode that is positioned in the right ventricular floor and the defibrilator generator (that is what closes the circuit). Most of heart is in between those two electrical poles. Still, they can be put in the right side of chest and the circuit is closed by the generator or by a coil of the RV electrode (in the superior vena cava IVC) ...Read more

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What can interfere with pacemakers and implantable defibrillators?

Pacemakers: Strong magnetic fields such as those used in security metal detectors and magnetic fields produced by large electric motors can interfere with pacemaker and defibrillator function. They may not necessarily turn a device "off" but can interfere with its programming. With only rare exceptions, patients with these devices need to avoid MRI scanners. Patients with these devices can have ct scans. ...Read more

See 2 more doctor answers
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What can interfere with pacemakers and implantable defibrillators?

What  can interfere with pacemakers and implantable defibrillators?

Pacemakers: Strong magnetic fields such as those used in security metal detectors and magnetic fields produced by large electric motors can interfere with pacemaker and defibrillator function. They may not necessarily turn a device "off" but can interfere with its programming. With only rare exceptions, patients with these devices need to avoid MRI scanners. Patients with these devices can have ct scans. ...Read more

See 2 more doctor answers
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What things interfere with pacemakers and implantable defibrillators?

What things interfere with pacemakers and implantable defibrillators?

Not much: Common household appliances and cellular phones are generally safe to use near an implantable defibrillator. It is best to avoid sources of significant electric current. For example, you should keep your icd 2 feet from an arc welder. You should not lean over your car engine while it is running. It is best to also keep large magnets off your device as well since this can affect its performance. ...Read more

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Dr. Janice Alexander
1 doctor shared a insight

Defibrillator (Definition)

Defibrillation is a common treatment for life-threatening cardiac dysrhythmias, ventricular fibrillation, and pulseless ventricular tachycardia. Defibrillation consists of delivering a therapeutic dose of electrical energy to the affected heart with a ...Read more