scholarly journals Natural History and Prognostic Value of Corticospinal Tract Wallerian Degeneration in Intracerebral Hemorrhage

Author(s):  
Chitra Venkatasubramanian ◽  
Jonathan T. Kleinman ◽  
Nancy J. Fischbein ◽  
Jean‐Marc Olivot ◽  
Alisa D. Gean ◽  
...  
Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Bastian Volbers ◽  
Angelika Mennecke ◽  
Nicola Kästle ◽  
Hagen B Huttner ◽  
Stefan Schwab ◽  
...  

Introduction: Intracerebral hemorrhage (ICH) is a devastating disease with poor outcome. Established predictive markers include initial hematoma size, clinical status, intraventricular bleeding and age. However, prognostic assessment is often difficult which additionally burdens patients and caregivers and complicates rehabilitation. Functional outcome especially relies on motor function which is correlated with the integrity of the Corticospinal Tract (CST). Diffusion Tensor (DT) Tractography allows visualization of the CST. However, sufficient data about the prognostic impact of quantitative CST assessment is lacking. Methods: We prospectively enrolled patients with spontaneous supratentorial ICH admitted between 08/2012 und 08/2015. Informed consent and ethical approval was obtained. MRI scan was performed on day 5±1. DT data was normalized to MNI Space and Q-Space diffeomorphic reconstruction was performed using DSI-studio. CST was reconstructed based on quantitative anisotropy (QA) using the CST region (JHU white matter atlas) as seeding region and cerebral peduncle as region of interest (ROI). Fractional Anisotropy (FA) and QA were analyzed in the seeding and ROI region and in the posterior limb of the internal capsule (PLIC). Dichotomized modified Rankin Scale on day 90 (favorable outcome = mRS 0-2) was assessed as primary outcome variable. Results: 33 patients, mean age 70.7 y (standard deviation (SD) 12.9), 12 male, 21 with lobar hemorrhage, mean ICH volume on admission 16.5 (SD 11.3) cm 3 were included. 16 patients had a favorable outcome on day 90 (median mRS 3 (IQR 1-3.5). Mean number of reconstructed CST fiber pathways ipsilateral to ICH was higher in patients with favorable outcome (11343 (SD 8201)) than in patients with unfavorable outcome (4868 (SD 3221), p=0.008). Median QA and FA values in the PLIC ipsilateral to ICH were also higher in patients with favorable outcome (QA: 18.9 (IQR 16.2-23.3) vs. 14.6 (IQR 11.7 - 17.7), p=0.016, FA: 0.49 (IQR 0.45-0.53) vs. 0.41 (IQR 0.38-0.49), p=0.026). Conclusion: Higher FA- and QA-values in the PLIC and higher numbers of CST fiber pathways ipsilateral to ICH seem to be associated with a favorable outcome. DT Imaging may turn out as a useful quantitative predictive marker in the acute phase of ICH.


BMC Neurology ◽  
2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Bing Bao ◽  
Xiangbin Wu ◽  
Zhongbin Xia ◽  
Yaoyao Shen

Abstract Background Wallerian degeneration (WD) can occur in different projecting systems, such as corticospinal tract, dentate-rubro-olivary pathway, and corticopontocerebellar tract. However, the co-occurrence of hypertrophic olivary degeneration (HOD) and middle cerebellar peduncles (MCPs) degeneration secondary to unilateral pontine infarction in a single patient is extremely rare. Case presentation A 71-year-old man presented with acute onset of dizzness, slurred speech, and right-sided weakness. On the next day, his previous neurologic deficits deteriorated. Brain magnetic resonance imaging (MRI) revealed acute ischemic stroke of the left pons. After treatment with thrombolysis, antiplatelets, and rehabilitation training, his speaking and motor function improved moderately. At the 3-month follow-up, the MRI showed hyperintensity in the left medulla oblongata and bilateral MCPs on T2-weighted and FLAIR images, suggesting HOD as well as MCPs degeneration. Conclusions It is of great importance for us to know the anatomic knowledge of dentate-rubro-olivary and corticopontocerebellar pathways.


2019 ◽  
Vol 43 (4) ◽  
pp. 338-345
Author(s):  
Yangchun He ◽  
Qigong Liu ◽  
Jing Wang ◽  
Dao Wen Wang ◽  
Hu Ding ◽  
...  

2016 ◽  
Vol 455 ◽  
pp. 15-19 ◽  
Author(s):  
Song-Quan Qian ◽  
Xiao-Chun Hu ◽  
Su-Rong He ◽  
Bei-Bei Li ◽  
Xu-Dong Zheng ◽  
...  

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