关键词: 经颅多普勒超声检查, TCD, 重型颅脑损伤, 预后

Abstract: 【Abstract】〓Objective〓To study the value of transcranial Doppler(TCD)in the prognosis of the patients with severe traumatic brain injury. Methods〓The prospective study included 62 severe traumatic brain injury patients from our hospital during Feb. 2013 to Oct. 2014, whom act as case group, and the data of the middle cerebral artery(MCA)blood flow was detected by TCD in the 1,3 7,14 and 21 days after the patients suffering from brain injury or operation. The peak systolic velocity (Vs), end diastolic velocity (Vd) and pulsatility index were observed. A total of 44 health people who accepted TCD scan in the same period were as control group. The data of case group were compared with that of control group. Results〓The velocity of brain blood flow was changing in the 1st day after injury or operation. Vs and Vd were declining to the lowest in the 7th day, and would gradually recover from then. But the trend of PI was contrary to above data. Vs was a protective factor for the severe traumatic brain injury in the 7th day. Conclusion〓The brain blood flow velocity detected by TCD can reflect the change and prognosis of intracranial pressure in the patients with sever traumatic brain injury,and has an important guiding value of the treatment for those patients.

Key words: Transcranial Doppler, TCD, Sever traumatic brain injury, Prognosis