It was reported that during the minimally invasive aortic valve replacement case that there was poor drainage of the patient's blood to the perfusion pump for the surgeon complete the procedure quickly.At the end of the case, the perfusionist looked at the venous cannula and noted that it appeared that several of the drainage holes were not completely open from the manufacturing process.Cannula was saved, and the lot number noted.No apparent harm came to the patient and patient was transferred to the icu for recovery.Fda safety report id # (b)(4).
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