Journal Information
Vol. 34. Issue 5.
Pages 221-227 (September - October 2023)
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Vol. 34. Issue 5.
Pages 221-227 (September - October 2023)
Clinical research
Long insular artery damage might be a key sign for predicting functional prognosis of putaminal hemorrhage
El daño de la arteria insular larga podría ser un signo clave para predecir el pronóstico funcional de la hemorragia putaminal
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Yuki Amano
Corresponding author
yukiamano.nmh@gmail.com

Corresponding author.
, Yohei Yamaguchi, Toshiaki Osato, Toshiichi Watanabe, Kenji Kamiyama, Hirohiko Nakamura
Department of Neurosurgery, Nakamura Memorial Hospital, Sapporo, Japan
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Tables (3)
Table 1. Baseline characteristics of the study groups.
Table 2. Other measurements data of the study groups.
Table 3. Predictors of discharged MMT scores≥3 on surgical cases of putaminal hemorrhage.
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Abstract
Objective

Although the putamen is the most common area of spontaneous intracerebral hemorrhage, previous reports about the effects of surgery are limited. We sometimes experience a poor prognosis in patients in whom there is no damage to the internal capsule, but with injury in the long insular artery (LIA) region. The purpose of this study was to confirm the relationship between LIA damage and patient prognosis following surgery for putaminal hemorrhage.

Methods

We retrospectively collected data of 287 surgical cases who presented with putaminal hemorrhage between January 2004 and March 2022. Among them, we chose patients without initial damage to the posterior limb of the internal capsule, and divided these patients into two groups, those without (Group A) and with (Group B) final damage in the LIA region. We compared positivity rates of final manual muscle test (MMT) scores3 and related factors.

Results

Sixty-three of the 287 patients were included in this study. Of them, 11 cases in Group A were positive for MMT scores3 (68.8%) and 9 cases (19.1%) in Group B had MMT scores3 seven days after surgery. Group A thus had a significantly higher rate of MMT scores3 than group B (p=0.00).

Conclusion

In patients without initial damage to the internal capsule, LIA injury might be a key sign for predicting the functional prognosis of putaminal hemorrhage.

Keywords:
Stroke
Putaminal hemorrhage
Long insular artery
Functional prognosis
Resumen
Objetivo

Aunque el putamen es la zona más común de la hemorragia intracerebral espontánea, los informes previos sobre los efectos de la cirugía son limitados. En ocasiones se observa un mal pronóstico en los pacientes en los que no hay daño en la cápsula interna, pero sí en la región de la arteria insular larga (AIL). El propósito de este estudio fue confirmar la relación entre el daño de la AIL y el pronóstico de los pacientes tras la cirugía de la hemorragia putaminal.

Métodos

Se recogieron retrospectivamente los datos de 287 casos quirúrgicos que se presentaron con hemorragia putaminal entre enero de 2004 y marzo de 2022. Entre ellos, elegimos a los pacientes sin daño inicial en la extremidad posterior de la cápsula interna, y dividimos a estos pacientes en 2 grupos, los que no tenían (grupo A) y los que tenían (grupo B) daño final en la región AIL. Se compararon las tasas de positividad de las puntuaciones finales de la prueba muscular manual (TMM)3 y los factores relacionados.

Resultados

Sesenta y tres de los 287 pacientes fueron incluidos en este estudio. De ellos, 11 casos del grupo A tuvieron puntuaciones de MMT3 positivas (68,8%) y 9 casos (19,1%) del grupo B tuvieron puntuaciones de MMT3, 7 días después de la cirugía. Así pues, el grupo A tuvo una tasa significativamente mayor de puntuaciones MMT3 que el grupo B (p=0,00).

Conclusión

En los pacientes sin daño inicial en la cápsula interna, la lesión del AIL podría ser un signo clave para predecir el pronóstico funcional de la hemorragia putaminal.

Palabras clave:
Accidente cerebrovascular
Hemorragia putaminal
Arteria insular larga
Pronóstico funcional

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