Abstract
Purpose: Computed tomography (CT) is used for initial assessment of patients with suspected
stroke. Motor outcome prediction using the initial CT image is important for clinical
rehabilitation. However, there is inconsistency in the results reported by the few
publications on hematoma volume and motor outcomes in patients with putaminal hemorrhage.
To clarify the direction of hematoma and relationship between the hematoma volume
and motor outcomes in patients with putaminal hemorrhage using an initial CT image,
we evaluated the volume of direction of hematoma in 170 patients in the subacute phase
after putaminal hemorrhage using CT at stroke onset. Methods: The patients were divided into 5 groups according to the direction of the hematoma.
For each group, Spearman's correlation coefficients were calculated to investigate
the relationship between hematoma volume and motor outcomes. Motor outcomes were assessed
using the motor items of Stroke Impairment Assessment Set, which are impairment indexes
for the distal and proximal functions of the upper and lower extremities after stroke.
Results: Hematoma volume was significantly correlated with all the motor items in the group
whose hematoma extended to the posterior limb of the internal capsule alone (Bonferroni
corrected P <.05). On the other hand, significant correlations between hematoma volume and motor
outcomes could not be found in almost all the other groups. Conclusions: Motor outcome after putaminal hemorrhage can be predicted by evaluating the progression
of hematoma to the corticospinal tract and its volume using CT images at stroke onset.
Key Words
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Article info
Publication history
Published online: April 14, 2020
Accepted:
March 11,
2020
Received in revised form:
March 4,
2020
Received:
December 16,
2019
Footnotes
Funding: This study was partly supported by JSPS KAKENHI Grant Number JP 15H05359.
Identification
DOI: https://doi.org/10.1016/j.jstrokecerebrovasdis.2020.104812
Copyright
© 2020 Elsevier Inc. All rights reserved.
