984
Based on this experience, we suggest that low-dose ketamine added to propofol may be associated with prevention of EA in children with a history of EA with propofol TIVA.
 potential therapeutic event: prevention 
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:
 potential therapeutic event: prevention 