CTCAE Grade 4 Stomach Fistula

Life-threatening consequences; major urgent intervention indicated

Life-threatening consequences or organ failure; operative intervention requiring organ resection indicated

Life-threatening consequences; operative intervention requiring complete organ resection (e.g., total colectomy)

Life-threatening consequences; operative intervention requiring complete organ resection (e.g., total colectomy)

Life-threatening consequences; operative intervention requiring complete organ resection (e.g., total colectomy)