tardive dyskinesia
Pronunciation: TAR-dive dis-ki-NEE-zee-ah
A potentially irreversible movement disorder characterized by repetitive, involuntary movements, typically caused by long-term antipsychotic use.
Full Definition
Tardive dyskinesia (TD) is a serious neurological side effect that can develop after prolonged exposure to dopamine-blocking medications, particularly antipsychotics. The condition manifests as involuntary, repetitive movements most commonly affecting the face, lips, tongue, and jaw, but can also involve the limbs and trunk. TD typically emerges after months or years of treatment and may persist even after medication discontinuation. Early recognition and documentation are crucial as the condition can significantly impact quality of life and may influence treatment decisions regarding continued antipsychotic therapy.
Usage
Usage note: Often abbreviated as TD; emphasize the potentially irreversible nature when documenting.
In Context
- "Regular screening for tardive dyskinesia is recommended for all patients on long-term antipsychotic treatment." — Clinical guideline
- "The patient developed mild tardive dyskinesia affecting facial muscles after two years of treatment." — Progress note