Abdominal wounds clousure control study between a single-layer suture and layered suture ZHANG Yu-chao, YANG Bin, CHEN Shuang, et al. Department of Gastrointestinal Surgery, Memorial Hospital of Sun Yat-Sen University, Guangzhou 510120, China Correspongding author: CHEN Shuang, E-mail: md.chens@medmail.com.cn Abstract Objective To compare the effect of abdominal wounds clousur between a single-layer suture and layered suture Methods Two hundreds and eighty-three cases performed abdominal operation between December 2003 and December 2007 at Memorial Hospital of SunYat-Sen University were allocated to a single-layer suture group and layered suture group. The wound healing and complications incidence were compared. Results None wound dehiscence case was recorded in a single-layer suture group but 5 cases in layered suture group. Incision liquefied occurred in 3 cases in a single-layer suture group and 7 cases in layered suture group. All cases were cured by dressing. Wound infection occurred in 8 cases in the third type wound of a single-layer suture group and 17 cases in layered suture group including 5 cases of the second type wound and 12 cases of the third type wound. The differences were significant statistically (P<0.05). In sinus formation, 2 cases of the third type wound occurred in 14 and 28 days after operation in a single-layer suture group. One case of the second type wound and 6 cases of the third type wound occurred in layered suture group. The differences were significant statistically (P<0.05) . One case of incisionai hernia in middle incision occurred in a single-layer suture group. Three cases of incisionai hernia occurred in layered suture group including 2 cases in middle incision and 1cases in paramiddle incision. The differences were significant statistically (P >0.05) . Conclusion A single-layer suture is a safe, fast and effective device in abdominal wounds clousure. It may be applied to lower the occurrence of early wound dehiscence and lower the occurrence of wound infection, sinus formation in the thied type wound cases