Find Information About:

Drugs & Supplements

Get information and reviews on prescription drugs, over-the-counter medications, vitamins, and supplements. Search by name or medical condition.

Pill Identifier

Pill Identifier

Having trouble identifying your pills?

Enter the shape, color, or imprint of your prescription or OTC drug. Our pill identification tool will display pictures that you can compare to your pill.

Get Started

My Medicine

Save your medicine, check interactions, sign up for FDA alerts, create family profiles and more.

Get Started

WebMD Health Experts and Community

Talk to health experts and other people like you in WebMD's Communities. It's a safe forum where you can create or participate in support groups and discussions about health topics that interest you.

  • Second Opinion

    Second Opinion

    Read expert perspectives on popular health topics.

  • Community


    Connect with people like you, and get expert guidance on living a healthy life.

Got a health question? Get answers provided by leading organizations, doctors, and experts.

Get Answers

Sign up to receive WebMD's award-winning content delivered to your inbox.

Sign Up

Heart Disease Health Center

Font Size

Heart Device Recalled

Older-Model Medtronic Implanted Defibrillators May Fail
WebMD Health News

April 21, 2004 -- Medtronic Inc., in cooperation with the FDA, is recalling some of its older-model implantable cardioverter defibrillators (ICDs).

ICDs are implanted in the chests of people whose hearts are at risk of developing a deadly heart rhythm. When ICDs detect this abnormal heart rhythm, they emit an electric pulse that is supposed to shock the heart back into normal rhythm.

The recalled devices have a defective high-voltage capacitor. This may make them fail to charge properly. If this happens, the device may not emit the proper shock. Medtronic reports that there have been four deaths and one serious injury caused by the failure of these devices.

The models in question are some of Medtronic's Micro Jewel II Model 7223Cx and GEM DR Model 7271 ICDs. Patients who have Medtronic ICDs with these model numbers should call their doctors immediately.

Medtronic no longer makes the Micro Jewell II device. The GEM DR device had only limited distribution. All of the ICDs in question were implanted in 1997 and 1998. They are nearing their normal replacement time. Of the 6,268 devices manufactured, some 1,800 are still thought to be implanted in patients worldwide.

Doctors are advised to check the devices' charge times. If they aren't working properly, Medtronic recommends replacement. However, the final decision on whether to replace the devices is based on each doctor's medical judgment and upon the needs of each patient.

Today on WebMD

x-ray of human heart
A visual guide.
atrial fibrillation
Symptoms and causes.
heart rate graph
10 things to never do.
heart rate
Get the facts.
empty football helmet
red wine
eating blueberries
Simple Steps to Lower Cholesterol
Inside A Heart Attack
Omega 3 Sources
Salt Shockers
lowering blood pressure