title: [Effect of intra- and out-anorectal drainage in the prevention of anastomotic leakage after low anterior resection].
abstract: OBJECTIVE
  To investigate the effect of intra- and out-anorectal drainage in the prevention of anastomotic leakage after low anterior resection (LAR).
  
  
  METHODS
  Two hundred and thirty-five patients undergone LAR were divided into two groups according to two periods, the former group from Mar. 2003 to Aug. 2004 and the later group from Sep. 2004 to Nov. 2007. Technique advances were adopted in the later group, especially the routine intra- and out-anorectal drainage. Incidence of anastomotic leakage and clinicopathological data of two groups were compared.
  
  
  RESULTS
  Anastomotic leakage occurred in 4 patients of the former group (4/89) and 1 of the later group (1/146). Logistic analysis found that intra- and out-anorectal drainage was the main issue which prevented anastomotic leakage.
  
  
  CONCLUSIONS
  Intra- and out-anorectal drainage is useful for the prevention of anastomotic leakage after low anterior resection.
authors.affiliation: Department of General Surgery, Lanzhou Command General Hospital, Lanzhou 730050, China. gaof678@sohu.com
authors.forename: Feng
authors.initials: F
authors.lastname: Gao
authors.forename: Yu-di
authors.initials: YD
authors.lastname: Yan
authors.forename: Feng
authors.initials: F
authors.lastname: Song
authors.forename: Xin
authors.initials: X
authors.lastname: Zhang
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhao
authors.forename: Ming
authors.initials: M
authors.lastname: Zhang
authors.forename: Ming
authors.initials: M
authors.lastname: Xu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001003:Anal Canal / Q000601:surgery*; D000714:Anastomosis, Surgical / Q000009:adverse effects; D004322:Drainage / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D011183:Postoperative Complications / Q000517:prevention & control*