Boston scientific received information that during the implant procedure when the left ventricular (lv) lead was being placed, this catheter was used along with a cannulating catheter.There was some difficulty experienced in moving the cannulating catheter.The physician believed it was due to the delivery value and the value was cut to insert the catheter into the delivery system.Continued difficulty was experienced with moving the catheter into the delivery and when the catheter was removed from the delivery there was a unknown object seen on x-ray.This object was unable to be removed and was left in the patient.The source of the object is unknown.It was reported that the accessories were removed and believed to be whole with no missing parts.No adverse patient effects were reported.Another delivery system was successfully used.Additional information was received that the information and images were reviewed by boston scientific's medical safety physician.It was determined that part of a catheter does remain inside of the patient.Anticoagulation therapy was recommended, if not already in place.From the available information it appears to be a procedure related event occurring while handling the viking catheter and its related accessories differently as reported in the instruction for use.No further complications have been reported.
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