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  • Title: Two-stage resuscitation of the cat brain after prolonged cardiac arrest.
    Author: Seo K, Ishimaru S, Hossmann KA.
    Journal: Intensive Care Med; 1991; 17(7):410-8. PubMed ID: 1774395.
    Abstract:
    Following prolonged cardiac arrest, reperfusion of the brain is endangered by the low blood perfusion pressure during the early resuscitation phase. In order to avoid low perfusion brain injury, a two-stage resuscitation protocol was applied to cats submitted to 30 min potassium chloride induced cardiac arrest: first, the heart was resuscitated, followed--after stabilisation of blood pressure--by recirculation of the brain. During cardiac resuscitation the brain was disconnected from the general circulation by inflating a pneumatic cuff around the neck. The results were compared with the outcome of conventional one-stage resuscitation following 15 min cardiac arrest. Cardiac resuscitation was successful in 5 out of 8 animals with 15 min and in 6 out of 13 animals with 30 min cardiac arrest. In successfully resuscitated animals of both groups, brain energy metabolism recovered to normal within 3 h although two-stage resuscitation increased brain ischemia time to 37-61 min. Two-stage resuscitation, in consequence, is a promising approach for revival of the brain after prolonged cardiac arrest.
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