2458
The authors describe a patient with hemiparesis who developed the syndrome of irreversible lithium-effectuated neurotoxicity (SILENT) while being treated with lithium for a manic episode.
 adverse event: developed 
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: adverse event, potential therapeutic event 
Text: {0} 
Answer:
 adverse event: developed 