Mellergård P
Department of Neurosurgery, Lund Hospital, Sweden.
Surg Neurol. 1995 Jan;43(1):91-5. doi: 10.1016/0090-3019(95)80049-m.
Information regarding human brain temperature is still rather sparse, which is surprising giving the no longer recent findings that the mammalian brain is very sensitive to minor variations in temperature. We therefore report the results of intracranial temperature monitoring in thirty neurosurgical patients. Intraventricular temperature was monitored with a thermocouple specifically designed for the purpose, and introduced through a plastic catheter used for monitoring of intracranial pressure, with simultaneous measurements of rectal and epidural temperature with commercially available thermocouples. Human intraventricular temperature is higher than central core temperature, and there is also a temperature gradient within the brain, with the central parts being warmer than the surface. The presence of an intracerebral temperature gradient was confirmed in two patients undergoing stereotactic thalatomy. We found no clear evidence for a correlation between consciousness level and brain temperature. Observations of brain temperature changes after clinical diagnosis of brain death are also reported.
关于人类脑温的信息仍然相当稀少，鉴于哺乳动物大脑对温度的微小变化非常敏感这一早已不是最新的发现，这一情况令人惊讶。因此，我们报告了30例神经外科患者颅内温度监测的结果。使用专门为此目的设计的热电偶监测脑室内温度，并通过用于监测颅内压的塑料导管插入，同时使用市售热电偶测量直肠和硬膜外温度。人类脑室内温度高于核心体温，并且脑内也存在温度梯度，中心部位比表面温暖。在两名接受立体定向丘脑毁损术的患者中证实了脑内温度梯度的存在。我们没有发现意识水平与脑温之间存在相关性的明确证据。还报告了脑死亡临床诊断后脑温变化的观察结果。
