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１９７３年以来，应用自制的专用器械行改良的结肠直肠Ｚ形吻合术治疗小儿先天性巨结肠１３２例，取得满意效果。这一改良Ｄｕｈａｍｅｌ术式完全去除了直肠与结肠间隔，彻底消除了闸门及盲袋，手术操作简便，术后不需扩肛。１３２例无手术死亡，最长随诊２２年，全部患儿排便正常，无肛门失禁及污粪。肛门外形正常。体会：（１）严格掌握切除肠管范围，防止无神经节细胞或变性神经节细胞存留是防止术后复发的关键；（２）充分游离拖出肠管并保证拖出后无张力是预防手术并发症的重要环节；（３）采取多种有效预防措施，减少腹腔污染及术后感染是减少并发症的可靠保证；（４）一个理想的压扎钳是保证Ｚ形吻合术成功的重要因素。
Since 1973, the application of homemade special instruments modified colorectal Z-anastomosis in children with Hirschsprung in 132 cases, and achieved satisfactory results. The modified Duhamel technique completely removed the rectum and colon interval, completely eliminating the gate and blind bag, the operation is simple, no postoperative anal augmentation. 132 cases died without surgery, the longest follow-up of 22 years, all children with normal bowel movements, anal incontinence and no stool. Anus normal shape. Experience: (1) strict control of the excision of the intestine, to prevent non-ganglion cells or degenerative ganglion cell retention is the key to prevent postoperative recurrence; (2) fully free to drag out the bowel and ensure that no tension after the pull out is to prevent surgical complications (3) take a variety of effective preventive measures to reduce peritoneal contamination and postoperative infection is a reliable guarantee to reduce complications; (4) an ideal compression clamp is to ensure the success of Z-anastomosis factors.