中国神经再生研究(英文版) ›› 2017, Vol. 12 ›› Issue (12): 2021-2024.doi: 10.4103/1673-5374.221159

• 原著:脑损伤修复保护与再生 • 上一篇    下一篇

脊髓丘脑束损伤致脑梗死后中枢性疼痛:来自弥散张量纤维束成像的证据

  

  • 收稿日期:2017-04-10 出版日期:2017-12-15 发布日期:2017-12-15

Central post-stroke pain due to injury of the spinothalamic tract in patients with cerebral infarction: a diffusion tensor tractography imaging study

Sung Ho Jang1, Jun Lee2, Sang Seok Yeo3   

  1. 1 Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Namku, Daegu, Republic of Korea
    2 Department of Neurology, College of Medicine, Yeungnam University, Namku, Daegu, Republic of Korea
    3 Department of Physical Therapy, College of Health Sciences, Dankook University, Chungnam, Republic of Korea
  • Received:2017-04-10 Online:2017-12-15 Published:2017-12-15
  • Contact: Sang Seok Yeo, Ph.D.,eangbul@hanmail.net.
  • Supported by:

    This work was supported by the National Research Foundation (NRF) of Korea Grant funded by the Korean Government (MSIP),No. NRF-2015R1D1A1A01060314.

摘要:

现有证据已证实,脑出血患者卒中后中枢性疼痛发病机制涉及脊髓丘脑束损伤,但尚未见关于脑梗死患者卒中后中枢性疼痛发病机制的弥散张量纤维束成像证据。研究纳入5例卒中后中枢性疼痛的脑梗死患者和8名年龄、性别匹配的健康对照者,应用弥散张量纤维束成像对其脊髓丘脑束进行检查。患者损伤脊髓丘脑束的弥散张量纤维束成像参数部分各向异性值和纤维束体积均较对照组所有下降,而平均扩散系数则明显上升。从神经纤维束形态上看,损伤脊髓丘脑束穿过梗死邻近区, 且变细。由此可见,脊髓丘脑束损伤可能是脑梗死患者卒中后中枢性疼痛病因。

orcid:0000-0003-3873-9516(Sang Seok Yeo)

 

关键词: 神经再生, 卒中后中枢性疼痛, 脑梗死, 脊髓丘脑束, 弥散张量纤维束成像

Abstract:

Many studies using diffusion tensor tractography (DTT) have demonstrated that injury of the spinothalamic tract (STT) is the pathogenetic mechanism of central post-stroke pain (CPSP) in intracerebral hemorrhage; however, there is no DTT study reporting the pathogenetic mechanism of CPSP in cerebral infarction.In this study, we investigated injury of the STT in patients with CPSP following cerebral infarction,using DTT. Five patients with CPSP following cerebral infarction and eight age- and sex-matched healthy control subjects were recruited for this study. STT was examined using DTT. Among DTT parameters of the affected STT, fractional anisotropy and tract volume were decreased by more than two standard deviations in two patients (patients 1 and 2) and three patients (patients 3, 4, and 5), respectively, compared with those of the control subjects, while mean diffusivity value was increased by more than two standard deviations in one patient (patient 2). Regarding DTT configuration, all affected STTs passed through adjacent part of the infarct and three STTs showed narrowing. These findings suggest that injury of the STT might be a pathogenetic etiology of CPSP in patients with cerebral infarction.

Key words: nerve regeneration, central post-stroke pain, cerebral infarction, spinothalamic tract, diffusion tensor imaging, neural regeneration