It was reported that the right ventricular (rv) lead had high thresholds.The patient experienced recurrence of dizziness and near syncope last month.The rv capture thresholds were increased to the highest outputs, which resolved the symptoms.It was noted that the patient continues to experience occasional palpitations and squeezing chest pain.During the procedure, two left ventricular (lv) leads were attempted, but not used due to no superior capture threshold and in most locations no capture at all.The physician decided to use the alternative rv epicardial lead, with stable thresholds to give the patient more than five years of pacing.The lead is still in use.No further patient complications have been reported as a result of this event.Additional information has been requested but not provided.
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The device was in use for treatment.The device was not returned for analysis.The device history record was reviewed to confirm that the device passed all applicable in-process and final inspections.The investigation will focus on a review of product documentation.Based on the investigation, a capa is not required as findings did not identify a design, labeling or manufacturing non-conformity and no new failure mode identified.The event will be re-evaluated if additional information becomes available.Oscor will continue to monitor this event type.Per procedure unipolar and bifurcated bipolar lead adaptors/extensions and lead extension with universal coupler final inspection : the setscrew is checked by qa 100% both visually and with a torque wrench to ensure smooth functionality.The electrical values are checked by qa 100% as well.Per instructions for use (ifu) : product awareness: the adaptors are implanted in the extremely hostile environment of the human body.Because the adaptors are very small in diameter and must be very flexible, it inevitably reduces their potential performance and longevity.Adaptors may fail to function for a variety of causes, including medical complications, body rejection phenomenon, allergic reaction, fibrotic tissue problem, or a failure of adaptor by damage, fracture, or by breach of their insulation.Despite of all due care in design, component quality, manufacture and testing prior to sale, adaptors may be damaged by improper handling, use, placement or other intervening facts.
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