|Signs and Symptoms||Approximate number of patients (when available)|
|Areflexia of upper limbs||-|
|Arnold-Chiari type I malformation||-|
|Autosomal dominant inheritance||-|
|Limb muscle weakness||-|
|Lower limb hyperreflexia||-|
|Lower limb spasticity||-|
|Small flat posterior fossa||-|
Less frequently, Chiari malformation type 1 is acquired after birth. Causes of acquired Chiari malformation type 1 involve the excessive draining of spinal fluid from the lumbar or thoracic areas of the spine as a result of injury, exposure to harmful substances, or infection. Click here to view a diagram of the spine.
The prognosis for someone diagnosed with Chiari malformation type 1 is often unknown. Many people with this condition do not have any symptoms, and it is not possible to predict if symptoms will develop in the future. Other affected individuals may experience dizziness, muscle weakness, numbness, vision problems, headache, or problems with balance and coordination. In these individuals, it is not always known if symptoms will get worse over time. It is important for people with Chiari malformation type 1 to receive regular medical care so they can be monitored by a physician for any new symptoms.
There are some treatments that may help reduce or eliminate the symptoms of Chiari malformation type 1. Medications may ease certain symptoms, such as pain. Surgery is another treatment option, but it is typically reserved for people with severe symptoms. Many patients who have had surgery see a reduction in their symptoms and/or prolonged periods of relative stability.
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My daughter was diagnosed with Chiari 1 malformation during childhood. Several years ago she was diagnosed with acute scoliosis and a fusion of 2 cervical vertebrae. Could it be possible that the Chiari is causing the scoliosis, even if there is no tethered cord or syringomyelia? Should she be checked for Klippel Feil syndrome? See answer
I am 23 years old. For 3 years I have been suffering from this critical problem. Please suggest how I might get rid of it so I can enjoy my life. See answer
Is Arnold-Chiari malformation type 1 a genetic disorder? See answer
My friends little boy is 3-years-old and has been diagnosed with Chiari malformation type 1. Could you tell me how it will affect his life? Is the outcome good or bad? He suffers from headaches at the moment. See answer
What causes Chiari malformation type 1? How can I learn about research on this topic? In particular I'm interested in learning more about the role of genetics and possible links to radiation or drug exposure. See answer