Equillibrium disorders with diffuse brain atrophy in long-term toluene sniffing

Area of Science:

• Neuroscience
• Toxicology
• Neurology

Background:

• Toluene, an organic solvent, is commonly found in industrial and household products.
• Inhalant abuse, particularly of solvents like toluene, can lead to severe neurotoxicity.
• Habituation to sniffing toluene can result in progressive neurological damage.

Purpose of the Study:

• To document the neurological consequences of chronic toluene sniffing.
• To investigate the specific ocular motor deficits associated with toluene abuse.
• To correlate clinical findings with neuroimaging results in a case of toluene-induced neurotoxicity.

Main Methods:

• Clinical neurological examination assessing motor function, coordination, and equilibrium.
• Ocular motor testing including assessment of nystagmus and eye-tracking.
• Neuroimaging techniques such as angiography and pneumoencephalography to evaluate brain structure.

Main Results:

• The patient presented with ataxia, tremor, incoordination, and equilibrium disorders.
• Pendular nystagmus was observed, alongside inhibited optokinetic nystagmus and impaired smooth pursuit eye movements.
• Angiography and pneumoencephalography indicated atrophy of the midbrain and cerebrum, with suspected cerebellar degeneration.

Conclusions:

• Chronic toluene sniffing can cause severe and widespread central nervous system damage.
• Ocular motor abnormalities are significant indicators of toluene-induced neurotoxicity.
• Neuroimaging findings support the hypothesis of solvent-induced brain atrophy and cerebellar degeneration.