NEURO Flashcards
(39 cards)
What is the pathology of a right CVA?
Scenario 1
An acute stroke, specifically a right-sided cerebrovascular accident (CVA), occurs when there is a sudden disruption of blood flow to the brain, leading to the death of brain cells. This can happen due to a thrombotic or embolic ischemic stroke, or a haemorrhagic stroke caused by bleeding within the brain. A stroke on the right side of the brain often affects motor control, sensation, and spatial-perceptual abilities on the left side of the body. Symptoms may include:
* Hemiparesis or hemiplegia: Weakness or paralysis on the left side.
* Left-sided neglect: Difficulty in perceiving stimuli on the left side of the body.
* Sensory deficits: Altered sensation, including numbness or lack of proprioception.
* Visual deficits: Possible visual field cuts or neglect on the left.
* Cognitive and perceptual issues: Problems with attention, judgment, or orientation.
How does a Right CVA clinically present?
Scenario 1
The patient may present with weakness or paralysis of the left arm and leg, difficulty maintaining posture, and issues with balance. They may have left-sided neglect, visual deficits, and difficulty with voluntary movements on the affected side.
What assessment do you do for a right CVA?
Scenario 1
- Motor Assessment: Evaluate muscle strength, tone, and active movement, using scales like the Modified Ashworth Scale for spasticity.
- Sensation Testing: Check for touch, proprioception, and pain on the affected side.
- Balance and Coordination: Assess sitting balance, standing balance, and coordination through functional tasks.
- Cognitive Screening: Brief assessment of attention, orientation, and ability to follow commands.
- Visual Assessment: Check for visual field deficits or neglect.
What management strategies do you use for a right CVA?
Scenario 1
- Positioning and Early Mobilization: Prevent contractures, maintain skin integrity, and encourage early upright sitting to promote circulation and reduce the risk of complications like deep vein thrombosis (DVT).
- Functional Exercises: Task-oriented exercises focusing on improving motor skills and movement patterns, such as reaching or grasping.
- Balance Training: Sitting and standing balance exercises, with a focus on postural control.
- Sensory Stimulation: Techniques to improve sensation and awareness on the affected side, especially if there is neglect.
- Family Education: Information on how to assist with mobility, safety, and home adaptations.
What is the pathology of a left CVA with right shoulder pain?
Scenario 2
Pathology/Condition/Dysfunction: A chronic stroke (more than 6 months post-CVA) may lead to long-term functional impairments, including hemiplegic shoulder pain. Stroke can damage the motor cortex, leading to spasticity, weakness, and reduced motor control on the opposite side of the body. Shoulder pain is often due to:
- Shoulder subluxation: Partial dislocation caused by weak rotator cuff muscles. In this case, the right shoulder muscles, including the rotator cuff (supraspinatus, infraspinatus, teres minor, subscapularis) and deltoid, may become significantly weaker. These muscles play a critical role in stabilizing the shoulder joint by keeping the head of the humerus (upper arm bone) within the glenoid cavity of the scapula (shoulder blade).
When these muscles are weak, they can no longer maintain the normal alignment of the joint, leading to a partial dislocation or subluxation. - Adhesive capsulitis: Reduced joint mobility due to prolonged immobility.
- Spasticity: Increased muscle tone leading to improper positioning and muscle imbalance. This is caused by a change in exitation of the muscle inhibitors causing for an increase in the muscle tone of these muscles.
How may you assess for right shoulder pain after L CVA?
Scenario 2
- Pain Evaluation: Use pain scales to understand the severity, and palpate the shoulder for tenderness.
- ROM and Muscle Tone Testing: Assess the range of movement in the shoulder, and check for spasticity or contractures.
- Functional Assessment: Observe tasks like reaching, lifting, and transfers, to understand how pain affects function.
- Subluxation Check: Gently assess the shoulder joint for any signs of subluxation. Can do this by palpating and visually seeing a gap on the arm. During PROM if there is more movement or pain and apprehension whilst moving the arm passively.
- Postural Assessment: Examine the alignment of the shoulder girdle and trunk.
How do you treat shoulder pain after an L CVA?
Scenario 2
- Pain Management: Use of modalities like heat, cold, TENS (transcutaneous electrical nerve stimulation), or gentle manual therapy.
- Stretching and Mobilization: Passive and active ROM exercises to maintain or improve joint mobility.
- Strengthening Exercises: Targeting the rotator cuff, scapular stabilizers, and core muscles to support proper alignment.
- Positioning and Support: Use slings or supports to maintain shoulder integrity and prevent subluxation.
- Education: Advice on proper arm positioning and how to manage spasticity.
What is the pathology of Parkinson’s disease and freezing within it?
Scenario 3
Parkinson’s Disease (PD) is a progressive neurodegenerative disorder characterizsd by the loss of dopamine-producing neurons in the substantia nigra, a part of the basal ganglia that is crucial for motor control.
What is the pathophysiology of a R CVA?
Scenario 1
Ischemic strokes occur due to the occlusion of a cerebral artery by a thrombus or embolus. The lack of blood supply leads to cell death in the affected area of the brain, causing neurological deficits.
The right side of the brain controls the left side of the body; therefore, a right-sided stroke can lead to left-sided hemiplegia (paralysis) or hemiparesis (weakness).
What is the prognosis of a R CVA?
Scenario 1
Recovery depends on the extent of brain damage, the patient’s age, and how quickly treatment was initiated. Rehabilitation can help improve functional outcomes, but residual deficits may persist.
What are the signs and symptoms of a R CVA?
Scenario 1
Hemiplegia or hemiparesis on the left side of the body, facial droop, slurred speech, difficulty swallowing, neglect of the left side, and potential visual field deficits.
What are risk factors of a R CVA?
Scenario 1
Hypertension, diabetes, atrial fibrillation, smoking, hyperlipidemia, and a history of transient ischemic attacks (TIAs).
What is the pathophysiology of an L CVA with right shoulder pain?
Scenario 2
HSP arises due to a combination of factors including subluxation of the shoulder joint, muscle imbalance, spasticity, and reduced movement. Stroke affects upper motor neurons, leading to spasticity and altered muscle tone, which can contribute to shoulder pain.
A left-sided stroke may affect speech (Broca’s or Wernicke’s aphasia) and cognition due to the involvement of language-dominant brain areas.
What is the prognosis of an L CVA with right shoulder pain?
Scenario 2
Long-term rehabilitation can lead to improvements, but persistent deficits in motor function and pain management may be challenging. Pain can impede participation in therapy, affecting overall recovery.
What are the signs and symptoms of l CVA with right shoulder pain?
Scenario 2
Right-sided weakness, limited arm movement, spasticity, and pain, particularly when the arm is moved or stretched. Possible neglect of the affected limb and reduced shoulder joint integrity (subluxation).
What are the risk factors of L CVA?
Scenario 2
History of stroke, poor diabetes and blood pressure management, sedentary lifestyle, smoking, and atrial fibrillation.
What is the pathophysiology of Parkinson’s Disease?
Scenario 3
The loss of dopamine disrupts communication between neurons in the basal ganglia, leading to impaired control of movement. This causes symptoms like bradykinesia (slowness of movement), rigidity, and tremors.
Freezing of Gait (FOG) is a common symptom where the patient suddenly feels as if their feet are glued to the ground, making it difficult to initiate or continue walking.
What is the prognosis of parkinson’s disease?
Scenario 3
PD is a chronic, progressive condition with no cure. Symptoms worsen over time, but medications and therapy can help manage them and improve quality of life.
What are the signs and symptoms of Parkinson’s Disease?
Scenario 3
Bradykinesia, tremors at rest, muscle rigidity, postural instability, and non-motor symptoms like depression, sleep disturbances, and autonomic dysfunction.
What are risk factors of Parkinson’s?
Scenario 3
Age, genetic predisposition, exposure to environmental toxins, and history of concussions.
How does Parkinson’s disease present clinically?
Scenario 3
The patient may present with shuffling gait, difficulty initiating movement, and frequent episodes of freezing, especially in narrow or crowded spaces.
How would you assess for freezing of gait?
Scenario 3
Gait Analysis: Observe the patient’s walking pattern, focusing on stride length, speed, and balance.
Muscle Tone and Rigidity: Evaluate for increased muscle tone, especially in the limbs.
Cognitive and Motor Interaction: Assess the patient’s ability to follow cues or multitask while walking, as this may trigger freezing.
TUG test and questionnaire.
How would you manage gait freezing in Parkinson’s?
Scenario 3
Cueing Strategies: Use visual (e.g., stepping over lines), auditory (rhythmic beats), or verbal cues to help overcome freezing episodes.
Gait Training: Focused exercises to improve stride length and rhythm, incorporating the use of walking aids if needed.
Balance Exercises: To reduce the risk of falls, incorporating static and dynamic balance drills.
Factors Influencing Choice: Severity of motor symptoms, medication schedule, and patient’s response to different cueing techniques.
What is the pathology of relapsing remitting MS?
Scenario 4
Multiple Sclerosis (MS) is a chronic autoimmune disorder that affects the central nervous system (CNS). It is characterised by inflammation, demyelination, and axonal damage. In Relapsing-Remitting MS (RRMS), patients experience periods of neurological dysfunction (relapses) followed by partial or complete recovery (remissions).