Lithium: An old treatment for a new indication.

Area of Science:

• Neuroscience
• Metabolic Disorders
• Genetics

Background:

• Subacute necrotising encephalopathy, also known as Leigh syndrome, is a severe congenital neuro-metabolic disorder within the mitochondrial encephalopathies group.
• It is characterized by variable inheritance, multisystemic effects predominantly on the central nervous system, and a generally poor prognosis with no established specific treatment.

Discussion:

• This study details the 5-year follow-up of a patient diagnosed with Leigh syndrome who previously responded positively to lithium treatment.
• The patient experienced sustained clinical improvement, increased autonomy, and avoided rehospitalization, suggesting a potential long-term benefit of lithium therapy.

Key Insights:

• Lithium administration was associated with maintained psychomotor improvement and enhanced autonomy in a Leigh syndrome patient over a 5-year period.
• The observed benefits suggest lithium may play a role in managing symptoms and improving quality of life in certain neuro-metabolic conditions.

Outlook:

• Further research into the neuroprotective and neurotropic mechanisms of lithium is warranted to explore its therapeutic potential in mitochondrial encephalopathies.
• Investigating lithium's efficacy and safety in larger cohorts of patients with Leigh syndrome could establish it as a viable treatment option.