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[Post-stroke hemichorea: observation-based study of 15 cases]
Isabel Pareés1, Jorge Hernández-Vara, José Álvarez-Sabín
1Servicio de Neurología, Hospital Universitario Vall d'Hebron, Barcelona, España. iparees@hotmail.com
Revista De Neurologia
|October 7, 2010
Summary
Vascular hemichorea, a rare stroke complication, often resolves spontaneously or with medication. Lesion location in the brain influences presentation and recovery, highlighting the complexity of movement control networks.
Area of Science:
- Neurology
- Neuroscience
- Vascular Neurology
Context:
- Chorea is an uncommon complication of acute cerebrovascular disease.
- The precise pathophysiology, lesion localization, and clinical progression of vascular chorea remain incompletely understood.
Purpose:
- To perform a retrospective observational study on patients diagnosed with vascular hemichorea.
- To describe the clinico-radiological characteristics and clinical symptoms of vascular hemichorea.
Summary:
- Fifteen patients with vascular hemichorea (0.2% of strokes) were analyzed. Most had ischemic stroke (80%) with lesions in the lentiform nucleus, cortex, thalamus, or subthalamus.
- Symptoms resolved in 73% within two months, often without pharmacological treatment. Haloperidol was the most common medication.
- The varied lesion topography underscores the intricate cortico-basal network's role in movement control and confirms links between hemichorea and cortical lesions.
Impact:
- Provides insights into the clinical presentation and outcomes of vascular hemichorea.
- Contributes to understanding the neuroanatomical basis of movement disorders following stroke.
- Informs clinical management and prognosis for patients with this rare neurological complication.
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