It was reported that this implantable cardiac resynchronization therapy defibrillator (crt-d) and other manufacturer leads had observations of the respiratory rate trend (rrt) sensor oversensing intermittent high out of range pacing impedances greater than 2000 ohms causing inappropriate atrial tachy response episodes.The patient had presented to the emergency room earlier this year with chest pain that could have been related to the noise and oversensing issue.Technical services recommended consider programming rrt feature off to help mitigate the issue.The system remains in-service.
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