2455
We strongly suspect that this lethal anuria was mainly due to ifosfamide, occurring in a patient having received previous cisplatin chemotherapy and with poor kidney perfusion due to transient hypotension.
 adverse event: occurring 
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: occurring 