During mitraclip procedure, patient suffered a large air embolus immediately after the clip delivery system was inserted into the steerable guide catheter.No obvious source of the air.Clip delivery system was removed.Air was removed from the patient's heart and patient was stabilized.The clip delivery system was reintroduced and small amount of air entered body again.Again, no obvious breaks in the system.The patient remained stable enough to continue with procedure.All devices removed from body.A new steerable guide catheter was used and two new clip delivery systems.
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