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Original Articles

Case report of an intracarotid amobarbital procedure performed for a deaf patient

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Pages 15-20 | Accepted 02 Sep 1992, Published online: 04 Jan 2008
 

Abstract

The intracarotid amobarbital procedure (IAP) was conducted with a profoundly deaf young man prior to right anteromedial temporal lobectomy for pharmacologically refractory partial complex seizures. The IAP required considerable modification in order to take into account the use of varying sign language methods and related issues. Visual memory, American Sign Language, signed English, and finger-spelling functioning were all assessed. The patient manifested left hemisphere dominance for all these abilities, performing well under right hemisphere anesthesia. In contrast, no ability to function on these tasks was detectable when the left hemisphere was anesthetized. This demonstrates that an intact left temporal lobe and related structures are sufficient to support sign language functioning. The development of a deaf adaptation of the IAP is of methodological significance, as the IAP is thereby rendered accessible for deaf patients.

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