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. Twostage resuscitation, in consequence, is a promising approach for revival of the brain after prolonged cardiac arrest.
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Seo, K., Ishimaru, S. & Hossmann, K.A. Two-stage resuscitation of the cat brain after prolonged cardiac arrest. Intensive Care Med 17, 410–418 (1991). https://doi.org/10.1007/BF01720679
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DOI: https://doi.org/10.1007/BF01720679