Perinatal. Referring to the period of time surrounding an infant's birth, from the last two months of pregnancy to the first 28 days of life. The TORCH panel tests for perinatal infections.
1 CMT1 is commonly caused by a duplication of a gene on chromosome 17. This gene controls the production of your nervesâ protective myelin sheath. CMT1 is also caused by other gene defects.  CMT2 results from a defect in your peripheral nerve cellsâ axon. This is caused by a defect in your mitofusin 2 gene.
Posted on June 12, 2007 â. Charcot-Marie-Tooth disease is a sensorineural peripheral polyneuropathy. The association between Charcot-Marie-Tooth syndrome and cardiac involvement is controversial. Although patients with this disease may have cardiac conduction abnormalities, such abnormalities are often not recognized. Increasing numbers of case reports attest to the association between CMT and cardiac problems.