低温对缺血脑组织的保护作用已被许多实验所证实,但这些实验并未涉及到选择性脑部降温。选择性脑部降温可以不降低全身的温度,从而避免了诸如寒颤、心律失常及免疫功能不全等全身不良反应的发生。本研究试图通过在幼猪心跳骤停6min后心肺复苏期间应用局部降温手段以探明选择性脑部降温的效果及其对全身血流动力学、局部器官血流和脑组织代谢的影响,验证选择性脑部降温对局部器官血流及全身血流动力学不会产生大的影响之假 The protective effect of hypothermia on ischemic brain tissue has been confirmed by many experiments, but these experiments did not involve selective brain cooling. Selective brain cooling can reduce systemic temperature without the risk of systemic adverse effects such as chills, arrhythmias, and immune dysfunction. This study attempted to demonstrate the effects of selective brain cooling and its effects on systemic hemodynamics, local organ blood flow, and brain tissue metabolism by applying local cooling during cardiopulmonary resuscitation 6 minutes after cardiac arrest in piglets Selective brain cooling on the local organ blood flow and systemic hemodynamics will not have a big impact on the fake