Reports of some acceptable oozing from cannula sites during the night with stable hemoglobin and hematocrit (h/h), arterial blood gas (abgs), and hemodynamics within acceptable parameters.On-coming rn performing assessment noticed a large amount of blood on pillow and around neck.Immediately called for help and then, almost simultaneously, the extracorporeal membrane oxygenation (ecmo) console alarmed and circuit clamped.Cannula noted to be partially dislodged it had been sutured with 3 sutures and they were noted to be still intact on skin and around cannula, but cannula had slipped through.Flows through circuit were previously running at 4 l/min.Surgeon at bedside within minute and new cannula site access established and re-initiation of veno-venous (v-v) ecmo.Massive blood transfusion.
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