Task: Answer Verification
Input (English): Question: Is a diverting stoma necessary when performing a handsewn coloanal anastomosis for lower rectal cancer?
Answer: The anastomotic complication rate was low even without a diverting stoma. This study suggests that a diverting stoma is not necessary when performing a handsewn coloanal anastomosis for lower rectal cancer however, an effort should be made for healthy anastomotic healing in patients with rectal cancer who are preoperatively radiated.
Output (English): no