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Original Article

Brainstem Auditory Evoked Potentials in Respiratory Insufficiency Following Encephalitis

, , , &
Pages 35-44 | Received 30 May 1995, Accepted 05 Sep 1995, Published online: 29 Apr 2010
 

Abstract

Brainstem auditory evoked potentials (BAEPs) were recorded in 14 artificially ventilated patients (12 males, 2 females; mean age 33.3 ± 16.3 years, range 18-67) with respiratory insufficiency resulting from severe inflammatory encephalopathies. The results were compared with those of 17 healthy volunteers (13 males, 4 females; mean age 27.4 ± 5.3 years, range 21-45). BAEPs in the study patients showed prolonged interpeak latencies (I-III. I-V, III-V, IV-V) and delayed absolute latencies of waves I, II, III and V at least on one side. Because the auditory pathways are in the near vicinity of the respiratory control centers in the brainstem, the electrophysiologic abnormalities of wave III and the IV/V complex may be a reflection of disturbed central control of ventilation.

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