Orthopedic Surgery for Friedreich Ataxia Follow-up
- Author: Stephen Kishner, MD, MHA; Chief Editor: Harris Gellman, MD more...
Further Inpatient Care
- Supportive treatment should be provided.
Deterrence/Prevention
- Prenatal testing is clinically available for couples at a 25% risk of having a child with FA and in whom both disease-causing mutations are known.[30] DNA extracted from cells obtained from amniocentesis at 16-18 weeks of gestation or chorionic villus sampling at 9-11 weeks of gestation can be analyzed.
Complications
- Cardiac arrhythmias, angina, heart failure
- Respiratory failure
- Dysphagia
Prognosis
- The rate of progression of Friedreich ataxia (FA) is variable. The mean age of loss of ambulation is 25 years. Death usually occurs in the mid fourth decade of life. However, survival into the sixth and seventh decades of life has been documented. Death often is related to cardiomyopathy and diabetes, but aspiration pneumonia due to dysphagia also may shorten the lifespan of patients with FA.
Patient Education
- Patients and their parents must be provided with information on the nature, inheritance, and implications of the genetic disorder to help them make informed medical and personal decisions.
- Friedreich ataxia (FA) is inherited in an autosomal recessive manner.
- Parents of a child diagnosed with FA are both obligate carriers of an FXN gene mutation.
- Siblings of patients with FA have a 25% risk of being affected.
- Offspring of patients with FA all inherit one mutant allele from the affected parent. However, these children only have a risk of being affected if the unaffected parent is a carrier of a mutation in the FXN gene. The carrier status of the unaffected parent can be determined by DNA testing.
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