In Canada, 2,416 patients had the Medtronic defibrillators implanted as of February 2005, with 613 of them having been removed or replaced as of June 2007.

In 2005, Medtronic announced that it was recalling two heart defibrillators because they had been linked to at least four deaths and one injury. These devices are used to shock the heart into normal rhythm after patients suffer irregular heartbeat or fibrillation, which are rapid, life-threatening arrhythmia’s, originating in the lower chambers of the heart.

The defibrillators are implanted surgically in the chest. When a cardiac arrhythmia occurs, the capacitor is charged and the device delivers the appropriate shock. Medtronic said that some of the recalled defibrillators failed to charge properly, a defect which can result in the late delivery or no delivery of cardiac shock therapy. Medtronic had actually discovered the problem with its defibrillators in 2003, but did not disclose the problems immediately.

In October, Medtronic agreed to pay $130 million to settle U.S. claims it hid the defects in the defibrillators, $55 million more than it proposed in a July settlement, people familiar with the agreement said at the time. The company agreed to the higher amount after more claims were filed over the heart defibrillators than the parties expected, the people said.

But the October settlement was not the end of Medtronic’s defibrillator woes. That same month, Medtronic suspended sales of the Sprint Fidelis Leads after receiving reports of 5 fatalities linked to lead fractures. A lead is a wire that connects an implantable defibrillator to the heart. It is through the lead that a defibrillator is able to sense when a patient’s heart rhythm is out of sync. When it breaks, the defibrillator can emit a massive and painful shock. And in the worse case scenario, the fractured lead can prevent a defibrillator from sending a necessary, lifesaving shock to the heart.

Just last week, lawyers for Medtronic went before the US Supreme Court to ask that people injured by defective medical devices and drugs should not be allowed to sue manufacturers if those products have been approved by the Food & Drug Administration.

December 10th, 2007 by Staff with NewsInferno.com

SOURCE: Sprint Fidelis Lead Recall › Medtronic dfibrillator cass ation lawsuit gets go ahead in Canada

Back in March, Medtronic sent letters to doctors warning them about the risk of fractures in leads and reminding doctors of the proper way to use the leads. By this point, some doctors had already realized that the Sprint Fidelis leads were prone to fracture. However, patients were not made aware of the problem until March, when Medtronic recalled the leads. Many patients are now concerned that they have defective leads that may fracture, causing them to experience serious, unnecessary shocks or causing their defibrillator to not administer a necessary shock.

Meanwhile, a shareholder who alleges that the company concealed information about defective lead wires has also filed a lawsuit. The suit seeks unspecified damages from Medtronic and claims that Medtronic’s actions constitute securities fraud.

According to the lawsuit, since October 15, the day that sales of Sprint Fidelis leads were suspended, shares in Medtronic have dropped from $56.33 to $45.99. At the time, Medtronic reported that at least five confirmed deaths have been linked to defective lead wires. The lawsuit seeks class action status on behalf of those who bought Medtronic stock between June 25, 2007 and October 15, 2007, the period during which Medtronic allegedly made false and misleading statements. Among the statements was a claim in a securities filing that the Sprint Fidelis leads had a “strong market acceptance,” and a claim that there was increasing clinical data to support the use of Sprint Fidelis leads.

However, by January 2007, Medtronic allegedly already had 679 reports of injuries caused by defective leads. According to the lawsuit that number grew to 795 by April 30, 2007 and then jumped to 1,053 injuries reported two months later. Furthermore, Medtronic learned in February 2007 that the Minneapolis Heart Institute would stop using Spring Fidelis leads in its surgeries and replace them with the Sprint Quattro leads.

Medtronic has estimated that the failure rate for its leads is around 2.3 percent. That is just over two times the failure rate of the company’s other leads. However, the risk of serious complications associated with replacing the leads can be as high as seven percent. Replacing the Sprint Fidelis leads can cause damage to the veins that the leads run through.

Patients who have recalled Sprint Fidelis leads implanted are understandably concerned that their leads could fracture and fail at any time, putting their lives at risk. Those who have already had their leads fail report that the unnecessary shocks are incredibly painful.

November 15th, 2007

SOURCE: Sprint Fidelis Lead Recall › Medtronic Sprint Fidelis leads facing more lawsuits

The leads were implanted into hundreds of thousands of patients who are now at risk of serious injury if their Sprint Fidelis Lead malfunctions. All unused leads were recalled by Medtronic on October 15, although Medtronic is actually referring to the recall as a “voluntary market suspension.” Leads that have been suspended contain the model numbers 6930, 6931, 6948 and 6949 either by themselves or at the beginning of a longer model number. Patients who have defibrillators manufactured by Guidant and St. Jude may also have the Medtronic Sprint Fidelis Lead implanted in them and should consult their physicians to discuss their options.

Sprint Fidelis Leads that have already been implanted are not being removed because surgery to remove a fractured lead wire is risky and can cause tearing or scarring of the heart tissue and veins that house the lead. There is currently no test to predict whether or not a lead will fracture and malfunction, meaning that patients have no way of knowing whether their lead could stop working in the future.

Lawsuits have been filed against Medtronic alleging the company is responsible for causing injury to defibrillator patients. A class action lawsuit was filed on October 15 in Minnesota, seeking compensatory, injunctive, equitable and declaratory relief. The plaintiffs claim that Medtronic misrepresented and concealed the safety and possible defects of its Sprint Fidelis Leads in order to protect profits. The suit also seeks relief for unjust enrichment and medical monitoring.

According to a letter from Dr. Sidney M. Wolfe of Public Citizen to the US Food and Drug Administration (FDA), more than 1,600 injury reports were filed over the past two years, with more than 750 reports listing “inappropriate shocks” as being received by the patient. One of the patients in the Minnesota lawsuit alleges he received 47 unnecessary shocks from his defibrillator because of the faulty wires, resulting in surgery to remove the defective lead.

The letter also notes that the Minneapolis Heart Institute contacted Medtronic in February 2007 about problems related to malfunctioning leads. An article by researchers at the Minneapolis Heart Institute compared lead failures in Medtronic’s Sprint Fidelis and Sprint Quattro models. The study found that the Sprint Fidelis Lead had a higher risk of fracturing than the Sprint Quattro. In fact the Heart Institute was so concerned about defective lead wires that it stopped implanting them in January 2007.

The Sprint Fidelis Lead is actually a wire that attaches the Medtronic defibrillator to a patient’s heart. It works by administering a corrective electric impulse to the heart in patients who have abnormal heart rhythms. However, the leads are prone to fracturing which can cause them to malfunction, resulting in them not delivering a shock when necessary or delivering a series of painful shocks when not necessary. Either situation can be fatal.

There is some concern that young adults and children are at a greater risk of lead fracture because the Sprint Fidelis leads are a smaller diameter than other products and were used frequently in younger patients. Patients who are more active may put additional stress on the Fidelis leads.

If you are concerned that you have been implanted with a Sprint Fidelis Lead, check your patient card that identifies which implanted devices you have. If you do not have a patient card, or are still uncertain as to what devices were used, contact your doctor for more information.

October 30th, 2007

SOURCE: Sprint Fidelis Lead Recall › Patients concerned about Medtronic Sprint Fidelis leads