Auditory and Vestibular Rehabilitation In Corpus Callosum Agenesis: A Case Report and Literature Review

Abstract Background Corpus callosum agenesis occurs when the commissural fibers between the two hemispheres cannot complete their development for various reasons. Axons from cortical areas sensitive to auditory and auditory input are transmitted from the midline through the corpus callosum. It has been shown that congenital aplasia of the corpus callosum or damage at an early age leads to disorders in the understanding of stimuli that require dichotic listening and auditory interhemispheric transmission, auditory pattern perception of sound, auditory figure, ground perception, and localization of sound. In the studies on sound lateralization, it has been revealed that compensation may be possible in cases of agenesis with corpus callosum neural plasticity and compensation mechanism. This study aims to evaluate rehabilitation, especially the auditory therapy process, and to be a reference for further studies in these cases. Case presentation: After the diagnosis of the corpus callosum, the patient, whose detailed examinations were made, was referred to the rehabilitation center by an external center. The 1,5-year-old patient received psychomotor, occupational therapy, and auditory therapy for 14 months during the rehabilitation process, which was applied immediately after the diagnosis process. Conclusions Although auditory rehabilitation is an uncommon approach in corpus callosum agenesis, the fact that the case in question has progressed in all developmental areas shows that the therapy approach is correct. This study revealed the necessity of early auditory rehabilitation in corpus callosum agenesis and laid the groundwork for future studies.