Useless, NOTHING ON HOW TO PREVENT THIS.
Clinical Features, Risk Factors, and Early Prognosis for Wallerian Degeneration in the Descending Pyramidal Tract after Acute Cerebral Infarction
Published:November 27, 2020DOI:https://doi.org/10.1016/j.jstrokecerebrovasdis.2020.105480
Abstract
Background
Wallerian degeneration(WD) occurs in the descending pyramidal tract(DPT) after cerebral
infarction commonly, but studies of its degree evaluation, influencing factors and
effects on nervous function are still limited.
Objectives
The purpose of this study was to describe these findings and estimate their clinical
significance.
Methods
In total, 133 patients confirmed acute cerebral infarction and restricted diffusion
in the DPT of the cerebral peduncle by MRI scans. These cases were retrospectively
reviewed. We describe their clinical characteristics and analyze influence factors
of WD, including the timespan from symptom onset to MRI and TOAST classification.
Their NIHSS scores at admission and first 7 days NIHSS improvement rate after admission
were also analyzed.
Results
These patients were divided into three groups by timespan ≤7 days(
n = 45),7–14 days(
n = 70) and >14 days(
n = 18). The mean WD degree (%)of these three groups was 44.41 ± 22.51,52.35 ± 22.61and
44.31 ± 19.35,respectively(
p = 0.122).According to the TOAST classification, the mean WD degree(%) of the cardioembolism
group(
n = 28, 62.80 ± 25.12) was significantly different from both the large-artery atherosclerosis
group(
n = 73,45.08 ± 20.03,
p = 0.000) and the small-vessel occlusion group(
n = 23,39.68 ± 16.95,
p = 0.000). The mean NIHSS score upon admission of the WD degree≤50% group(
n = 82,8.17 ± 5.87) was different from that of the >50% group(
n = 51,11.31 ± 7.00)(
p = 0.006). However, the mean 7 days NIHSS improvement rate(%) of the WD degree≤50%
group(
n = 79,11.83 ± 23.76)and >50% group(
n = 50,13.40 ± 27.88) was not significantly different(
p = 0.733).
Conclusions
Early WD in ischemic stroke patients has a correlation with serious baseline functional
defects. Therefore, we should give close attention to imaging change, especially in
those with cardioembolism .
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