When two or more (typically just a few, but sometimes many) separate nerves in disparate areas of the body are affected it is called "mononeuritis multiplex", "multifocal mononeuropathy", or "multiple mononeuropathy".Neuropathy may cause painful cramps, fasciculations (fine muscle twitching), muscle loss, bone degeneration, and changes in the skin, hair, and nails. Additionally, motor neuropathy may cause impaired balance and coordination or, most commonly, muscle weakness; sensory neuropathy may cause numbness to touch and vibration, reduced position sense causing poorer coordination and balance, reduced sensitivity to temperature change and pain, spontaneous tingling or burning pain, or allodynia (pain from normally nonpainful stimuli, such as light touch); and autonomic neuropathy may produce diverse symptoms, depending on the affected glands and organs, but common symptoms are poor bladder control, abnormal blood pressure or heart rate, and reduced ability to sweat normally. Classification
Peripheral neuropathy may be classified according to the number and distribution of nerves affected (mononeuropathy, mononeuritis multiplex, or polyneuropathy), the type of nerve fiber predominantly affected (motor, sensory, autonomic), or the process affecting the nerves; e.g., inflammation (neuritis), compression (compression neuropathy), chemotherapy (chemotherapy-induced peripheral neuropathy). The affected nerves are found in an EMG (electromyography) / NCS (nerve conduction study) test and the classification is applied upon completion of the exam. Mononeuropathy
Mononeuropathy is a type of neuropathy that only affects a single nerve.
Diagnosis
CCA may be diagnosed through the physical characteristics associated with the disease of long, slender body and contractures of multiple joints, as well as other symptoms, such as muscular hypoplasia. Molecular genetic tests may be run using sequence analysis or deletion/duplication analysis to look for mutations in the FBN2 gene. Prenatal testing may be used for pregnancies with a risk of CCA, such as a parent or sibling with the disease. Management
Joint contractures are treated using physical therapy to increase mobility and to improve the effects of underdeveloped muscles. Braces and/or surgery may be required to correct kyphoscoliosis. Children born with CCA are usually tested using echocardiograms every two years until the risks of an enlarged aorta (aortic root dilation) have been ruled out. If this is detected, it is managed with standard care for this condition. Prognosis
Life expectancy may be affected by the disease symptoms present but it is not usually shortened for those with this disease. See also
Congenital contractural arachnodactyly in cattle

References


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