Effects on neuronal ultrastructure and nervous system of monkey after selective cerebral profound hypothermia and blood flow occlusion / 中华外科杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the effects of deep hypothermia on the neuronal ultrastructure and nervous system of monkey after selective cerebral profound hypothermia and blood flow occlusion.</p><p><b>METHODS</b>Brain-local extracorporeal circulation was established by right internal carotid artery deep hypothermic perfusion and homolateral external jugular vein backflow, brain blood flow was recovered from circulatory arrest 60 - 80 minutes late and monkey came back naturally.</p><p><b>RESULTS</b>In all 7 monkeys, 5 were succeeded in being build up the models except for 2 because of technic problems, and 4 of them lived up for ever. The function of nervous system grade, essential organ and neuronal ultrastructure were normal.</p><p><b>CONCLUSION</b>Selective cerebral profound hypothermia can increase the ability of brain to endure hypovolemia and hypoxidosis and prolong the time of blood flow occlusion.</p>