DOAJ Open Access 2026

Successful treatment of an older patient with delayed neurological sequelae and delirium after carbon monoxide poisoning with memantine

Hatice Tuğba Yazır Zehra Sarıkaya Demirbaş Candeniz Avcı Mehmet İlkin Naharcı

Abstrak

Carbon monoxide (CO) poisoning can cause delayed neurological sequelae (DNS), a condition with no effective treatment. We report a 66-year-old male patient who recovered from acute CO poisoning but developed DNS and delirium one week later. He showed akinetic mutism, parkinsonism, rigidity, and cognitive impairment. Non-pharmacological approaches and donepezil were tried, but due to side effects, memantine (20 mg/day) was started. Over the course of one year, the patient showed significant improvement in neurological and functional status, with improvements in cognitive function (Mini-Mental State Examination: 26) and brain magnetic resonance imaging findings. This case suggests memantine may contribute to DNS recovery.

Topik & Kata Kunci

Penulis (4)

H

Hatice Tuğba Yazır

Z

Zehra Sarıkaya Demirbaş

C

Candeniz Avcı

M

Mehmet İlkin Naharcı

Format Sitasi

Yazır, H.T., Demirbaş, Z.S., Avcı, C., Naharcı, M.İ. (2026). Successful treatment of an older patient with delayed neurological sequelae and delirium after carbon monoxide poisoning with memantine. https://doi.org/10.4274/gulhane.galenos.2025.12989

Akses Cepat

Informasi Jurnal
Tahun Terbit
2026
Sumber Database
DOAJ
DOI
10.4274/gulhane.galenos.2025.12989
Akses
Open Access ✓