Myotonic disorders

Description

paeds-neurology Mind Map on Myotonic disorders, created by v.djabatey on 12/01/2014.
v.djabatey
Mind Map by v.djabatey, updated more than 1 year ago
v.djabatey
Created by v.djabatey almost 11 years ago
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Resource summary

Myotonic disorders
  1. myotonia= delayed relaxation after sustained mm contraction
    1. IDed clinically and on EMG
    2. dystrophia myotonica
      1. dominantly inherited
        1. caused by nucleotide triplet expansion
          1. so there can be anticipation through the generations
            1. esp when maternally transmitted
          2. presentation
            1. newborns
              1. hypotonia
                1. resp & feeding difficulties
                  1. due to mm weakness
                  2. good to examine mum for myotonia
                    1. manifestation
                      1. slow release of handshake
                        1. difficulty releasing tightly clasped fist
                    2. older kids
                      1. myopathic facies
                        1. LD
                          1. myotonia
                        2. diagnosis
                          1. imp to be sensitive while giving diag in the neonate
                          2. adults
                            1. cataracts
                              1. males
                                1. baldness
                                  1. testicular atrophy
                                2. death usually due to cardiomyopathy
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