Alleged deficiency description: clotting occurred during a procedure for ascending aortic replacement for aneurysmal disease.While cross clamp was still on around 60 minutes into the bypass clotting occurred on inner and outer surface of graft.It delayed the procedure by around 15 minutes as when clotting was noticed they had to irrigate the left ventricle and the left atrium.Patient was fully heparinised and last active clotting factor(act) was checked around 15 mins prior to procedure and was 500+ seconds.No clotting was noticed on the pump filter or reservoirs.Graft not pre-soaked prior to use as recommended by ifu.
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