tardive dyskinesia
Pronunciation: TAR-dive dis-ki-NEE-zhuh
Late-onset movement disorder characterized by involuntary movements, typically caused by long-term antipsychotic use.
Full Definition
Tardive dyskinesia is a serious and potentially irreversible movement disorder that develops as a delayed side effect of long-term treatment with antipsychotic medications. The condition is characterized by repetitive, involuntary movements most commonly affecting the face, mouth, tongue, and jaw, though it can also involve the limbs and trunk. In geriatric populations, the risk of developing tardive dyskinesia increases with age, duration of antipsychotic exposure, and cumulative dose. Early recognition is crucial as discontinuation of the causative medication may prevent progression, though the movements may persist even after drug withdrawal.
Usage
Usage note: Monitor regularly with AIMS scale in patients on long-term antipsychotics.
In Context
- "The AIMS assessment revealed early signs of tardive dyskinesia, prompting consideration of antipsychotic discontinuation." — Medication review
- "Patient education included warning signs of tardive dyskinesia to watch for during long-term antipsychotic treatment." — Consent documentation