During the initial implant procedure, the right ventricular (rv) lead became dislodged.Repositioning was attempted; however, the helix was unable to retract.The right ventricular lead was explanted and replaced to resolve the event.The patient was in stable condition.
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The reported events were lead dislodgement and a helix retraction failure.As received, only the distal portion of the lead was returned in one piece.The reported event of helix mechanism issue was confirmed.Visual examination of the lead found the helix was retracted and clogged with blood/tissue.After cutting the lead, cleaning and applying torque directly to the inner coil, the helix was able to extend and retract.The measured full helix extension length was within specification.The cause of the reported event of helix mechanism issue was due to the helix clogged with blood/tissue.
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