A case report: The cerebral metabolic rate of oxygen evaluated by 15O positron emission tomography may predict the recovery of cortical deafness due to bilateral cerebral hemorrhage.

Kosuke Sasaki, Yasuaki Kokubo, Shinji Sato, Kohei Igarashi, Hiroyuki Chiba, Tsukasa Ito, Yukihiko Sonoda

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Article in eNeurologicalSci, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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7 authors.

Kosuke SasakiDepartment of Neurosurgery, Faculty of Medicine Yamagata University, Yamagata, Japan.

Yasuaki KokuboDepartment of Neurosurgery, Faculty of Medicine Yamagata University, Yamagata, Japan.

Shinji SatoDepartment of Neurosurgery, Faculty of Medicine Yamagata University, Yamagata, Japan.

Kohei IgarashiDepartment of Neurosurgery, Faculty of Medicine Yamagata University, Yamagata, Japan.

Hiroyuki ChibaDepartment of Rehabilitation, Yamagata University Hospital, Yamagata, Japan.

Tsukasa ItoDepartment of Otolaryngology, Head and Neck Surgery, Yamagata University Faculty of Medicine, Yamagata, Japan.

Yukihiko SonodaDepartment of Neurosurgery, Faculty of Medicine Yamagata University, Yamagata, Japan.

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6 · The paper itself

Abstract

Cortical deafness is a rare central auditory disorder resulting in severe hearing loss. It is caused by bilateral damage to the auditory cortex, auditory radiation, or medial geniculate body. We herein report a case of cortical deafness recovery caused by left thalamic hemorrhage following right putaminal hemorrhage. The evaluation of the cerebral metabolic rate of oxygen (CMRO2) using 15O positron emission tomography (15O-PET) at the onset helped predict the functional outcomes. A CMRO2 evaluation using 15O-PET was valuable for predicting the outcome of cortical deafness. We should remain aware of the possibility of cortical deafness in stroke patients with bilateral temporal lobe lesions, basal ganglia lesions near auditory tracts, or brainstem lesions, including those with preexisting lesions.

Indexed as

15O-PETCerebral metabolic rate of oxygenCortical deafnessIntracerebral hemorrhage

Identifiers

PMID40823268

DOI10.1016/j.ensci.2025.100582

PMCPMC12355087

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