Hearing loss affects approximately one-third of adults 61 to 70 years of age and more than 80 percent of those older than 85 years. Men usually experience greater.
Chromosomes, Leukemias, Solid Tumors, Hereditary Cancers.
Ataxia - Symptoms and causes. Overview. Ataxia describes a lack of muscle control or coordination of voluntary movements, such as walking or picking up objects. A sign of an underlying condition, ataxia can affect various movements, creating difficulties with speech, eye movement and swallowing. Persistent ataxia usually results from damage to the part of your brain that controls muscle coordination (cerebellum). Many conditions can cause ataxia, including alcohol abuse, certain medications, stroke, tumor, cerebral palsy, brain degeneration and multiple sclerosis.
INTRODUCTION: Neoplasms of the scalp and skull comprise a heterogeneous assemblage quite different from that seen in adults. Children with scalp or skull masses are. Cerebellar ataxia is a common finding in patients seen in neurologic practice and has a wide variety of causes. Although cerebellar degeneration may be chronic and.
Inherited defective genes also can cause the condition. Treatment for ataxia depends on the cause.
Non-Cardiac Indications: Aetna considers single photon emission computed tomography (SPECT) medically necessary for any of the following indications. WHITE CELL DISORDERS I & II. Title: White Cell Disorders I & II Date & Time: Monday, November 12, 2012 at 12 nooon (White Cell Disorers I).
Adaptive devices, such as walkers or canes, might help you maintain your independence. Physical therapy, occupational therapy, speech therapy and regular aerobic exercise also might help. Symptoms. Ataxia can develop over time or come on suddenly.
A sign of a number of neurological disorders, ataxia can cause: Poor coordination. Unsteady walk and a tendency to stumble. Difficulty with fine motor tasks, such as eating, writing or buttoning a shirt. Change in speech. Involuntary back- and- forth eye movements (nystagmus)Difficulty swallowing. When to see a doctor.
If you aren't aware of having a condition that causes ataxia, such as multiple sclerosis, see your doctor as soon as possible if you: Lose balance. Lose muscle coordination in a hand, arm or leg. Have difficulty walking.
Slur your speech. Have difficulty swallowing. Causes. Damage, degeneration or loss of nerve cells in the part of your brain that controls muscle coordination (cerebellum), results in ataxia.
Your cerebellum comprises two pingpong- ball- sized portions of folded tissue situated at the base of your brain near your brainstem. The right side of your cerebellum controls coordination on the right side of your body; the left side of your cerebellum controls coordination on the left. Diseases that damage the spinal cord and peripheral nerves that connect your cerebellum to your muscles also can cause ataxia. Ataxia causes include: Head trauma. Damage to your brain or spinal cord from a blow to your head, such as might occur in a car accident can cause acute cerebellar ataxia, which comes on suddenly. Stroke. When the blood supply to a part of your brain is interrupted or severely reduced, depriving brain tissue of oxygen and nutrients, brain cells die. Cerebral palsy. This is a general term for a group of disorders caused by damage to a child's brain during early development — before, during or shortly after birth — that affects the child's ability to coordinate body movements.
Autoimmune diseases. Multiple sclerosis, sarcoidosis, celiac disease and other autoimmune conditions can cause ataxia. Infections. Ataxia can be an uncommon complication of chickenpox and other viral infections. It might appear in the healing stages of the infection and last for days or weeks.
Normally, the ataxia resolves over time. Paraneoplastic syndromes.
These are rare, degenerative disorders triggered by your immune system's response to a cancerous tumor (neoplasm), most commonly from lung, ovarian, breast or lymphatic cancer. Ataxia can appear months or years before the cancer is diagnosed.
Tumor. A growth on the brain, cancerous (malignant) or noncancerous (benign), can damage the cerebellum. Toxic reaction. Ataxia is a potential side effect of certain medications, especially barbiturates, such as phenobarbital; sedatives, such as benzodiazepines; and some types of chemotherapy. These are important to identify because the effects are often reversible. Also, some medications you take can cause problems as you age, so you might need to reduce your dose or discontinue the medication. Alcohol and drug intoxication; heavy metal poisoning, such as from lead or mercury; and solvent poisoning, such as from paint thinner, also can cause ataxia. Vitamin E, vitamin B- 1. Not getting enough of these nutrients,because of the inability to absorb enough, alcohol abuse or other reasons, can lead to ataxia.
For some adults who develop sporadic ataxia, no specific cause can be found. Sporadic ataxia can take a number of forms, including multiple system atrophy, a progressive, degenerative disorder. Hereditary ataxias. Some types of ataxia and some conditions that cause ataxia are hereditary.
If you have one of these conditions, you were born with a defect in a certain gene that makes abnormal proteins. The abnormal proteins hamper the function of nerve cells, primarily in your cerebellum and spinal cord, and cause them to degenerate. As the disease progresses, coordination problems worsen. You can inherit a genetic ataxia from either a dominant gene from one parent (autosomal dominant disorder) or a recessive gene from each parent (autosomal recessive disorder). In the latter case, it's possible neither parent has the disorder (silent mutation), so there might be no obvious family history.
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