Intraoperatively, cardiopulmonary bypass machine (cpb) main touch screen froze and the pump stopped working causing patient's blood pressure to drop.Unable to monitor flow/pressure or rpms.Cardiac output supported using cpb hand crank and internal cardiac massage while rebooting machine several times.No problem identified with cannula sites or tubing.Screen remained frozen but able to monitor flow and rpms.Switched to veno-arterial extracorporeal membrane oxygenation (va ecmo) support.Surgery was completed and patient transferred icu.
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