During a lead extraction case, an lld was not able to be inserted fully into the targeted lead.A tightrail was used to successfully relieve binding sites in the subclavian, innominate, svc, svc/ra junction.Additional traction force was applied to the lead using the lld, and the lead began to unravel and separate 5cm distal to the most distal point where the tightrail was used.The lead separation occurred distal to the furthest point that the lld could be inserted.Prior damage to the lead was not able to be seen on fluoro prior to the procedure, however, it is believed that there was some pre-existing compromise to the lead's integrity that prevented the lld from being inserted all the way to the end of the lead.The physician believed that it was the compromise in the lead that caused it to separate and not the lld.Because of the potential for injury with recurrence and because the lld was used as a traction platform when the lead came apart, we are reporting this event.
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