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April 1982

Postconcussion Syndrome

Author Affiliations

109 State St Bangor, ME 04401

Arch Neurol. 1982;39(4):257. doi:10.1001/archneur.1982.00510160063017

To the Editor.—  The article "Auditory Brainstem Responses in Postconcussion Syndrome" by Noseworthy et al (Archives 1981;38:275-278) is apt to be misleading and attributed significance that it should not have.Noseworthy et al attempted to give objective criteria for postconcussion syndrome, which is difficult to explain. In their attempt, they have exceeded the reliability limits of brainstem auditory evoked response (BAER) testing.Their essential finding was that when their group of patients with postconcussion syndrome was compared with their group of control subjects, there was a significant difference in the third wave latency. They do point out that this was only a difference in the groups and that the increased third wave latency was not demonstrable in an individual patient.There are two major problems with their methods and conclusion. First, BAER determinations have variabilities that they did not take into account. Second, the article gives the false impression that

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