Abstract:Objective: To study the effectiveness of punctate midline myelotomy (PMM)for the treatment of intractable visceral cancer pain. Methods: PMM was performed in 4 patients with intractable visceral cancer pain, including one case of pelvic pain, one case of celiac pain and two cases of both pelvic and celiac pain. The PMM was successfully performed at the spinal cord T_2, T_7 or T_8 level. The visual analog scale (VAS) and the McGill pain questionnaire (MPQ) were used for the evaluation of preoperative and postoperative pain. Results: All 4 cases of visceral cancer pain had immediate pain relief after operation. In the follow-up periods ranging from 5 to 13 months, the postoperative pain was reduced significantly (P<0.01) as compared to the preoperation. No severe side effects occured. Conclusion: PMM is a simple, safe and highly effective method for treating intractable visceral pain.