Ecmo pump started making mechanical clicking noise.Called perfusionist to discuss.No air or clots visible even with coming down on rpms.Pump settings were at 3700 rpms, blood flow was 4.2 lpm.Started alarming system 3 error (tempt alarm), perfusionist recommended bringing back up pump and pump head into room in case it fails.After speaking with perfusionist, called md and arnp to bedside and pump started alarming motor head overheating.Decision made to switch pump and pump head before complete failure since pt has no reserve.Pt hr dropped to 30s during switch.Blood pressure drop, dopamine transiently increased to maintain perfusion.Discontinued after pump changed due to systolic blood pressure in the 140s.Pt stabilized with no further sequela; however, this would have been a catastrophic life-threatening event had a back-up pump not been immediately available.Removed pump and pump head from pt care areas.Pump head defective and replaced.Replacement of 3 add'l pump heads requested through mfr.Mfr provided loaner pumps until new parts made available.Fda safety report id# (b)(4).
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