The Cardiosave IABP may stop unexpectedly due to a high priority Gas Gain or Gas Loss alarm. The alarm will interrupt therapy and require user intervention to correct and restart.

http://www.fda.gov/medical-devices/medical-device-recalls/getingemaquetdatascope-recalls-cardiosave-hybrid-and-rescue-intra-aortic-balloon-pumps-iabps-gas