Study of Amnesia Caused by Thalamic Hemorrhage
-
- FUKUDA Ataru
- Funabashi Municipal Rehabilitation Hospital
-
- SOTA Takashi
- Department of Neurosurgery, Chiba Tokushukai Hospital
-
- MORITO Tomohiro
- Department of Neurosurgery, Chiba Tokushukai Hospital
-
- TANAKA Ryo
- Department of Neurosurgery, Chiba Tokushukai Hospital
-
- TESHIMA Yoshinori
- Department of Neurosurgery, Chiba Tokushukai Hospital
-
- KITAHARA Isao
- Department of Neurosurgery, Chiba Tokushukai Hospital
-
- ISHIKAWA Makoto
- Funabashi Municipal Rehabilitation Hospital
Bibliographic Information
- Other Title
-
- 視床出血による記憶障害の検討
- シショウ シュッケツ ニ ヨル キオク ショウガイ ノ ケントウ
Search this article
Abstract
Background and Purpose : Many cases of amnesia caused by thalamic hemorrhage involve anterior nucleus hemorrhage, dorsomedial nucleus hemorrhage, and intraventricular rupture. In the present study, intraventricular rupture was studied with a focus on cases with hematoma compression at the fornix. Methods : Of 116 patients with thalamic hemorrhage admitted to our hospital, 50 patients aged <70 years who had hemorrhage during their first stroke confined to the thalamus, internal capsule, and corona radiata, and who neither developed hydrocephalus nor showed dementia prior to onset were investigated. Thalamic hemorrhages were classified by CT findings and the extent of intraventricular rupture. Memory was studied by the FIM memory scores on admission and discharge. Results and Conclusion : Patients with dorsomedial nucleus hemorrhage showed no tendency toward amnesia and were equivalent to patients with posterolateral nucleus hemorrhage, which does not usually result in amnesia on its own. Of the 30 patients with posterolateral nucleus hemorrhage, a high degree of amnesia was observed in the 18 with intraventricular rupture. A high proportion of patients with dorsomedial nucleus hemorrhage experienced intraventricular rupture (5 of 6 patients). Equivalent degrees of amnesia were observed in patients with intraventricular rupture with dorsomedial nucleus hemorrhage and those with posterolateral nucleus hemorrhage. The present findings in conjunction with the fact that amnesia in thalamic hemorrhage involves episodic memory impairment suggest that amnesia in patients with dorsomedial or posterolateral nucleus hemorrhage or with intraventricular rupture does not stem from damage to the dorsomedial nucleus, which is part of the Yakovlev circuit involved in emotional memory. Instead, the primary cause appears to be the effects of intraventricular rupture on the Papez circuit surrounding the lateral ventricle and foramen of Monro.
Journal
-
- The Japanese Journal of Rehabilitation Medicine
-
The Japanese Journal of Rehabilitation Medicine 51 (11), 709-715, 2014
The Japanese Association of Rehabilitation Medicine
- Tweet
Details 詳細情報について
-
- CRID
- 1390282680252494208
-
- NII Article ID
- 130004705543
-
- NII Book ID
- AN00250275
-
- ISSN
- 18818560
- 18813526
-
- NDL BIB ID
- 025926143
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed