There is a potential wiring defect in some Medtronic pacemakers. According to Medtronic, that wiring defect could cause a malfunction in 37,000 of its Kappa and Sigma pacemakers. Medtronic sent letters to physicians warning them that some of these pacemakers could run out of battery power or fail to respond when necessary. Medtronic advises doctors to consider removal of a pacemaker in this category that is required for daily survival. According to Medtronic there have been two reports of deaths that may be linked to the pacemaker. There are no programming fixes for this wiring defect. Also, Medtronic says that there are no tests to show which devices might fail. If a patient experiences fainting or lightheadedness, they should immediately call their doctor.
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