A report was received that an incorrect cannula was included in a tandemlife kit during use with a patient.During patient¿s care (patient was reportedly in poor condition upon arrival at facility), the planned use of one device (protek duo kit) was abandoned due to the patient¿s worsening condition (drop in blood pressure from 80 to ~50).Customer opened a tandemlife kit due to their need for use of oxygenator, which is included in the tandemlife kit.The pump and oxygenator was primed as normal, and the 17fr arterial cannula was placed in the right femoral artery.Instead of protek 24fr venous cannula being present in the kit, the protek duo29fr was present and used in the right femoral vein.Flows were reportedly low at 2-2.3l/min at 6,000rpm, as the circuit pulled from the distal port of the 29frprotek duo.Troubleshooting for low flow was attempted by increasing the rpms; however, customer was unable to increase the flows.Patient later expired, due to cardiogenic shock and metabolic acidosis.The device history records for each individual cannula and the overall kit was reviewed.Of the tandemlife kits (p/n 5740-2417) , 11 were built with 29 fr protekduo cannulas instead of 24 fr venous cannulas under two manufacturing orders, apr19096 and apr19121.No non-conformances were identified within the dhrs of the individual cannulas involved.Based on the poor condition of the patient prior to intervention with the tandemlife kit, the incorrect cannula and subsequent low flow are not believed to have caused the patient¿s death, but it's contribution has not been ruled out.The devices involved are not expected to be returned by the site.Attempts to the physician for clarifying information on the relationship between the incorrect cannula/low flow and the patient¿s death have been made.No additional relevant information has been received to date.
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