The symptoms have been known to include apathy, dementia, Parkinsonism, agitation, urinary incontinence, and pseudobulbar palsy, among many other neuropsychiatric symptoms. Microscopically, extensive hemispheric demyelination and the degeneration of basal ganglia are observed. Onset The onset of the symptoms usually occurs several weeks after the initial hypoxic episode. The hypoxic episode is necessarily severe, usually with an arterial oxygen partial pressure less than 40mmHg. Following the severe hypoxia, the patient typically falls unconscious or into a coma, with the exception of cases of carbon monoxide poisoning. If the patient recovers from this unconscious state, usually within 24 hours, it is typically followed by a successful recovery over a few days (generally 4 to 5). After the short recovery, a lucid period is observed, lasting anywhere from 1 to 4 weeks, in which the patient exhibits no symptoms related to the anoxic episode. It is after this period that the degenerative symptoms begin to appear and rapidly grow in severity.
Grinker myelinopathy
Diffuse myelinoclastic sclerosis
Neuromyelitis optica spectrum disorder
Cerebrotendineous xanthomatosis
Akureyri disease
Fasciolopsiasis
White dot syndromes
Camel spongiform encephalopathy