Related Experiment Video
Updated: Sep 10, 2025
05:32
Author Spotlight: Assessing Ischemic Stroke Damage Through Middle Cerebral Artery Occlusion Model
Published on: August 11, 2023
2.2K
[Limb-shaking movement disorder - an unusual presentation during transient ischemic attack].
Brynhildur Thors1, Enrico Bernardo Arkink2, Zoran Podvez3
1Department of Neurology, University Hospital of Icelan.
Laeknabladid
|August 25, 2025
Summary
Involuntary movements can signal transient ischemic attacks (TIAs) linked to carotid artery disease. Prompt diagnosis and treatment, like carotid endarterectomy, can resolve these symptoms and prevent recurrent stroke.
Area of Science:
- Neurology
- Vascular Neurology
- Cerebrovascular Disease
Background:
- Transient ischemic attacks (TIAs) are typically associated with focal neurological deficits.
- Involuntary movements are an uncommon but recognized manifestation of TIAs, often linked to carotid artery issues.
Observation:
- A 79-year-old woman presented with left-sided hyperkinetic involuntary movements.
- Symptoms were position-dependent, occurring upon standing and worsening with antihypertensive treatment.
Findings:
- Diagnostic imaging revealed severe right carotid artery occlusion and multiple right cerebral hemisphere ischemic lesions.
- The patient's symptoms resolved completely after undergoing carotid endarterectomy.
Implications:
- Position-dependent involuntary movements can be a TIA symptom, particularly with carotid stenosis or occlusion.
- Early identification and surgical intervention for carotid artery disease are crucial for preventing stroke and resolving these unusual TIA manifestations.
Related Concept Videos
01:27Restless Leg Syndrome and Night Terrors
249
Restless Leg Syndrome (RLS), also known as Willis-Ekbom disease, is a neurological disorder characterized by an uncontrollable urge to move the legs due to uncomfortable sensations. These sensations typically occur during periods of rest or inactivity, particularly when lying down or sitting, and can severely disrupt sleep.
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
The exact cause of RLS is not fully understood, but it is believed to involve dopamine, a neurotransmitter that helps regulate muscle movement. Imbalances in dopamine levels...
249
01:15REM Sleep Behavior Disorder
400
REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
RBD is significantly associated with...
400
01:28Dysrhythmias II: Classification of Tachyarrhythmias
135
Tachyarrhythmias are a type of dysrhythmia where the heart rate exceeds 100 beats per minute. Here are some common types of tachyarrhythmias:Sinus TachycardiaSinus tachycardia originates from increased impulses from the sinus node, leading to an elevated heart rate. It is often triggered by stress, fever, or exercise.Patients may experience palpitations, a sensation of a racing heart, dizziness, and chest discomfort.Causes and Risk Factors: Common causes include physical exertion, emotional...
135
01:16Vascular Spasm
1.8K
The vascular phase, also known as vasospasm, is the initial stage of hemostasis, crucial for preventing excessive bleeding when a blood vessel is injured. After a vessel is cut, nerves in the damaged area trigger pain and other sensory impulses. Simultaneously, the smooth muscles in the vessel wall contract, resulting in a vascular spasm. This contraction reduces the vessel's diameter at the injury site, slowing or stopping blood loss through the vessel wall. Vascular spasms typically last...
1.8K
01:29Dysrhythmias III: Characteristics of Dysrhythmias
114
Dysrhythmias, also known as arrhythmias, are irregular heart rhythms that result from abnormal electrical activity in the heart, affecting its ability to circulate blood efficiently. Tachyarrhythmias, a subset of dysrhythmias, are characterized by abnormally fast heart rates exceeding 100 beats per minute. Here are some types of tachyarrhythmias with their distinct ECG features:Sinus Tachycardia:Sinus tachycardia presents a regular heart rhythm with an increased rate of 101-180 beats per...
114
01:17Ischemic Heart Disease: Overview
1.4K
Ischemic heart disease occurs when the heart's blood supply dwindles, causing an ominous lack of oxygen and nutrients. This deficiency, stemming from reduced or obstructed blood flow, spells danger, leading to heart muscle damage and dysfunction.
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
Atherosclerosis, the primary malefactor, orchestrates this dangerous condition. It manifests as the accumulation of fatty deposits, akin to insidious plaques, within arterial walls. As time elapses, these plaques metamorphose, hardening and...
1.4K