Session Information
Date: Tuesday, September 24, 2019
Session Title: Classification of Movement Disorders
Session Time: 1:45pm-3:15pm
Location: Les Muses Terrace, Level 3
Objective: To investigate the characteristics and prognosis of movement disorders caused by intracranial and extracranial artery diseases.
Background: Intracranial and extracranial artery diseases may cause movement disorders such as chorea, dystonia, myoclonus, tremor, and parkinsonism. The incidence of post-stroke movement disorders is known to be 1%, but cerebrovascular diseases represent up to 22% of all secondary movement disorders. However, there has been limited information about movement disorders associated with large intracranial and extracranial artery diseases.
Method: We retrospectively analyzed 7 patients who developed movement disorders caused by intracranial and extracranial artery diseases among 2,259 patients included in movement disorders video registry at Asan Medical Center between January 2014 and January 2019.
Results: The incidence of movement disorders due to intracranial and extracranial artery diseases was 0.31% (7 out of 2,259 patients). Our patients presented with monochorea (n=1), hemichorea (n=4), hemidystonia (n=1) and limb-shaking movement disorders (n=1). On neuroimaging, four patients had the focal stenosis or occlusion in the middle cerebral artery opposite to the symptoms, one patient had extracranial internal carotid artery stenosis and two patients had moyamoya disease. Four patients had ischemic lesions, which were located in the basal ganglia (n=2), watershed cortical/subcortical areas (n=1) and temporal cortex (n=1). Two patients showed chronic and progressive movement disorders, and five patients had acute movement disorders. In one patient with moyamoya disease, hemichorea was improved by surgical treatment. Two patients had persistent movement disorders (1 hemichorea and 1 hemidystonia) after appropriate treatments.
Conclusion: Hemichorea was the most frequent movement disorders caused by intracranial and extracranial artery diseases, which may be persistent after treatments.
To cite this abstract in AMA style:
N. Choi, KW. Park, S. Jo, SJ. Chung. Movement disorders associated with intracranial and extracranial artery diseases [abstract]. Mov Disord. 2019; 34 (suppl 2). https://www.mdsabstracts.org/abstract/movement-disorders-associated-with-intracranial-and-extracranial-artery-diseases/. Accessed June 14, 2025.« Back to 2019 International Congress
MDS Abstracts - https://www.mdsabstracts.org/abstract/movement-disorders-associated-with-intracranial-and-extracranial-artery-diseases/