It was reported that dunng a dox change upgrade procedure, noise was notea with the old competitor right ventricular (rv) lead when plugged into the new cardiac resynchronization therapy pacemaker (crt-p) system.The physician decided to clean the rv port of the new device header, use a dry sterile paper and implanted a new rv lead.The patient came in for a post-procedure follow-up visit, and noise was noted again in the rv channel.This device was reprogrammed.Data analysis was performed and boston scientific technical services confirmed the low amplitude noise in the rv sensing channel.Since the similar artifacts could be seen with the previous implanted competitor rv lead and now with the new rv lead, it was suspected that the noise was related to a physiological source.Due to the low amplitude of the signals, there appears to be no oversensing.Boston scientific technical services recommended additional troubleshooting at the next office visit.This patient is dependent and no adverse.Patient effects were reported.This crt-p system remains in service.This report reflects information received by fda in the form of a notification per 803.22 (b)(2).
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