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Muscle palsy, or paralysis, is a loss of muscle control that can be caused by damage to the nervous system. Palsy is the name for paralysis accompanied by tremors. Paralysis can be temporary or permanent and can affect any muscle group in the body. Cerebral palsy, for example, is a brain disorder that causes permanent problems with movement and posture. Palsy can also affect the face, as in Bell's palsy, which causes temporary weakness or paralysis of the facial muscles.
| Characteristics | Values |
|---|---|
| Definition | Temporary weakness or paralysis of facial muscles |
| Cause | Inflammation and swelling of the seventh cranial nerve, which controls facial muscles; often caused by viral infections |
| Symptoms | Drooping on one or both sides of the face, difficulty making facial expressions, blurred or double vision, loss of taste, ringing in the ears, nausea, vomiting, neck stiffness, emotional instability, memory loss, headaches, etc. |
| Treatment | Eye drops, ointment, or a moisture chamber to protect the cornea; medicine and eye care; physical, occupational, and speech therapy |
| Prevalence | Relatively common, affecting about 15 to 30 people out of 100,000 annually |
| Age Group | Can affect anyone at any age but is most common between the ages of 15 and 60 |
| Similar Conditions | Strokes, brain tumours, Guillain-Barré syndrome, myasthenia, multiple sclerosis |
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What You'll Learn
Bell's Palsy
The cause of Bell's palsy is unknown, but it is often associated with inflammation that may be directed by the body's immune system against the nerve controlling facial movement. It is sometimes linked to viral infections, particularly the Herpes simplex virus, which is related to common cold sores. Other possible causes include strokes, tumours, and other medical conditions such as Guillain-Barre syndrome, myasthenia, and multiple sclerosis.
There is currently no known cure for Bell's palsy, but it usually resolves on its own without causing long-term complications. Eye care is crucial during the illness, as most people are unable to close their eye on the affected side, leading to a risk of corneal scratches. Treatments include eye drops, ointments, and moisture chambers to protect the eye from drying. In some cases, surgery may be needed if the weakness significantly affects the eyelids.
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Cerebral Palsy
The effects of CP fall on a spectrum of motor dysfunction, ranging from slight clumsiness at the mild end to severe impairments that make coordinated movement nearly impossible. Babies born with CP often have irregular posture, with their bodies appearing very floppy or very stiff. They may also have birth defects such as spinal curvature, a small jawbone, or a small head. Other symptoms may include seizures, problems with thinking or reasoning, vision and hearing issues, and speech difficulties.
The symptoms of CP vary among individuals and over time, but commonly include poor coordination, stiff muscles, weak muscles, tremors, and muscle spasms. CP can also cause bone and joint deformities, with gait abnormalities such as tip-toeing or scissoring gait being common in children with the condition. While the underlying problems do not worsen over time, symptoms may become more noticeable as the child ages.
There is no known cure for CP, but treatments such as physical therapy, occupational therapy, speech therapy, and medication can help manage the condition. Medications such as diazepam, baclofen, and botulinum toxin may be used to relax stiff muscles, and mouse NGF has been shown to improve outcomes.
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Paresis
There are several types of paresis, including:
- Monoparesis: Muscle weakness affecting one limb, such as an arm or leg.
- Paraparesis: Muscle weakness affecting both legs.
- Hemiparesis: Muscle weakness affecting one side of the body, such as the left arm and left leg.
- Quadriparesis: Muscle weakness affecting all four limbs.
- Bell's palsy: Temporary weakness in the facial muscles, which can cause facial drooping, pain, and difficulty with eye closure.
- Vocal cord paresis: Impaired movement of the vocal cords, leading to a soft, hoarse, or breathless voice.
- Gastroparesis: The stomach becomes partially paralysed and cannot empty food effectively, resulting in nausea, vomiting, bloating, and early satiety.
- Todd's paresis: Occurs following a seizure, often resulting in temporary weakness on one or both sides of the body, particularly in the face or extremities.
- Neurosyphilis: An infection of syphilis that attacks the nervous system, causing paresis, headaches, behavioural changes, and dementia.
- Spastic paresis: Characterised by muscle overactivity and spasticity due to nerve damage from conditions like stroke, multiple sclerosis (MS), or cerebral palsy.
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Spasticity
There are several treatment options for spasticity, including physical therapy, medication, and botulinum toxin injections. Selective dorsal rhizotomy (SDR) is a surgical procedure that can be used to treat severe spasticity by rebalancing electrical signals sent to the spinal cord. Orthopaedic surgery can also be used to treat the consequences of spasticity on muscles, bones, and connective tissue.
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Causes and Treatment
Palsy is the name for paralysis accompanied by tremors. Paralysis can be present at birth, as with cerebral palsy, or it can be caused by strokes and spinal cord injuries. Other causes include birth defects like spina bifida, autoimmune diseases (such as multiple sclerosis and Guillain-Barré syndrome), and brain injuries. Paralysis can also be caused by neurological diseases, such as amyotrophic lateral sclerosis (ALS).
Bell's palsy is a common form of temporary facial paralysis, affecting 15 to 30 out of 100,000 people annually. It is characterised by an unexplained episode of facial muscle weakness or paralysis, usually on one side of the face, which can cause a drooping appearance. The condition is caused by inflammation and swelling of the seventh cranial nerve, which controls facial muscles. While the cause of Bell's palsy is often unknown, it is sometimes linked to viral infections, particularly the Herpes simplex virus, and other conditions such as diabetes.
There is no cure for permanent paralysis, and Bell's palsy usually resolves on its own over time without treatment. However, medicine and eye care are important in treating Bell's palsy. Eye drops during the day and ointment at bedtime can protect the cornea from scratches. In some cases, there may be improvement within the first year. Treatment for paralysis typically includes physical therapy, occupational, and speech therapy, as well as adaptive and assistive devices to improve function and help individuals live independently.
Cerebral palsy, another form of palsy, is a permanent condition that affects body movement and muscle coordination. It is caused by changes in the developing brain that disrupt its ability to control movement and maintain posture and balance. While there is no cure for cerebral palsy, supportive treatments, medications, and surgery can help improve movement and communication.
Spastic paresis is another form of palsy that causes muscle overactivity and spasticity due to nerve damage. It is often caused by conditions such as stroke, multiple sclerosis (MS), and cerebral palsy. Treatment for spastic paresis focuses on addressing the underlying conditions and improving quality of life through physical therapy.
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Frequently asked questions
Muscle palsy is another term for paralysis, which is the inability to move specific muscles. Palsy refers to problems with movement.
The symptoms of muscle palsy vary depending on the type of paralysis. They can include muscle cramps, tingling or numbness in the limbs, difficulty breathing, coughing, high blood pressure, and loss of bowel control.
There are several types of muscle palsy, including Bell's palsy, cerebral palsy, and spastic paralysis. Bell's palsy is a temporary weakness or paralysis of the facial muscles, while cerebral palsy is a brain disorder that affects body movement and muscle coordination. Spastic paralysis is characterised by muscle stiffness and tightness.
