Task: Answer Verification
Input (English): Question: Does 0.1 % bupivacaine reduce the requirement for epidural fentanyl infusion after major abdominal surgery?
Answer: In low concentrations (0.1%), bupivacaine did not reduce the titrated dose of epidural fentanyl required for adequate pain relief during forced inspiration after major abdominal surgery. The incidence and severity of adverse effects were also comparable whether or not low-dose bupivacaine infusion was used.
Output (English): no