Wednesday, September 23, 2009

HNPP pearls

1.  Median >>> ulnar,  2.  Peroneal is involved
3.  Tibial nerve is almost never involved
4.  Pathology is tomaculi
5.  ulnar slowing across elbow is 100 %
6.  peroneal slowing across knee is 85 %
7.  SNAP's are abnormal-- amplitudes always reduced, latencies may be prolonged-- have not only pressure palsies but also an age related neuropathy
Unlike CIDP, in which patients are usually symptomatic, HNPP patients often are asymptomatic with EMG changes

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