closure dam合龙坝closuren.关闭；关口；讨论终结；终结Closure of nasal septal perforation鼻中隔穿孔闭合术Closure of cervicosigmoidal fistula宫颈乙状结肠瘘闭合术Closure of perforation of esophagus食管穿孔缝术Closure of ureterosigmoidal fistula输尿管乙状结肠瘘闭合术Closure of perineosigmoidal fistula会阴乙状结肠瘘闭合术Closure of gastroesophageal fistula胃食管瘘闭合术Closure of intestinovaginal fistula肠阴道瘘闭合术Closure of intestinocolonic fistula小肠结肠瘘闭合术Closure of ureterocutaneous fistula输尿管皮肤瘘闭合术Closure of patent ductus arteriosus动脉导管未闭闭合术