Objective:

To present a case of persistent cerebellar dysfunction following acute lithium toxicity and discuss its clinical features and implications in conjunction with relevant literature.

Key Findings:

• The patient developed persistent symptoms of dysarthria, dizziness, vertigo, diplopia, and unsteady gait after acute lithium toxicity.
• Initial treatment included gastric lavage, fluid resuscitation, and management of seizures and other complications, with specific outcomes noted.
• Despite normalization of serum lithium levels, cerebellar symptoms persisted, indicating potential irreversible effects.

Interpretation:

This case highlights the risk of persistent neurological deficits, particularly cerebellar dysfunction, following acute lithium overdose, even after lithium levels return to normal, emphasizing the need for ongoing monitoring.

Limitations:

• The case is based on a single patient, limiting generalizability.
• Long-term follow-up data may not fully capture the extent of recovery or ongoing symptoms, and potential biases should be considered.

Conclusion:

Persistent cerebellar impairment can occur after acute lithium overdose, necessitating awareness and appropriate rehabilitation strategies to support recovery and monitoring for long-term effects.