7.18
Instructions for Use & Clinical Reference Manual (US)
IMPELLA STOPPED
If the Impella
®
Catheter has stopped suddenly:
1.
Try to restart the catheter at P-8.
2.
If the Impella
®
does not restart at P-8, try to restart at P-2.
3.
If the Impella
®
does not restart or stops again, wait 1 minute and try to restart again.
4.
If the Impella
®
restarts, wean down to P-2 as the patient can tolerate. Under these
circumstances, catheter function is not reliable and the Impella
®
may stop again.
5.
If the Impella
®
does not restart, remove the Impella
®
from the ventricle as soon as
possible to avoid aortic insufficiency.
SUCTION
Suction may occur if the blood volume available for the Impella
®
Catheter is inadequate or
restricted. Suction limits the amount of support that the Impella
®
Catheter can provide to the
patient and results in a decrease in arterial pressure and cardiac output. It can damage blood
cells, leading to hemolysis. It may also be an indicator of right heart failure.
SUCTION WITH THE IMPELLA
®
2.5 OR IMPELLA CP
®
CATHETER
If the Automated Impella
®
Controller detects suction while running in AUTO mode, it
automatically reduces motor speed to lower the flow rate to resolve the suction and displays the
“Impella Flow Reduced” advisory alarm. If the suction is cleared, the controller returns the flow
rate to the desired setting. If suction is still detected at the lowest motor speed, the controller
displays the “Suction” alarm.
If the “Suction” or “Impella Flow Reduced” alarm occurs during Impella
®
2.5 or Impella CP
®
support, follow the recommended actions:
1.
Check the Impella
®
Catheter for correct positioning using imaging. Reposition the
catheter by rotating or moving it into or out of the ventricle slightly. Either or both of
these actions could help move the inlet of the Impella
®
Catheter away from the interior
ventricular wall.
2.
Ensure patient has adequate volume.
3.
Confirm right ventricular function by assessing CVP or right side function with
echocardiography or fluoroscopy. If CVP is not an option, check the pulmonary artery
diastolic pressure to assess the patient volume status.
4.
Return P-level to pre-alarm setting.
Summary of Contents for Impella 2.5
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