The user facility reported to terumo cardiovascular that during cardiopulmonary bypass, there was an inadequate oxygenation and co2 elimination.
As per the user facility, at the beginning of the perfusion, the po2 level at the rear of the oxygenator was only 90mmhg, pco2> 50mmhg at 3.
3l gas flow and fio2 75%.
In the course of the perfusion, fio2 and gas flow were further increased to 25 liters / fio2 100%.
The po2 was between 67 and 102 mmhg, the pco2 between 43 and 55 mmhg.
Approximately, after two hours of perfusion time an adequate oxygenation could not be maintained anymore, an additional oxygenator was integrated/connected in front of the defective oxygenator in the ecc (extracorporeal circulation) and there was a short cardiac arrest approximately for 100 seconds, due to the integration/connection.
There was also a blood loss of less than 20 ml while cutting the tube.
Afterwards, oxygenation and co2 elimination were adequate again.
The product was not changed out.
There was a delay for approximately 2 minutes.
The procedure was completed successfully.
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