title: [Analysis of 61 cases undergoing sphincter-preserving procedure with intersphincteric resection by telescopic anastomosis for ultra-low rectal cancer].
abstract: OBJECTIVE
  To investigate the efficacy and safety of sphincter-preserving procedure with transabdominal intersphincteric resection for ultra-low rectal cancer.
  
  
  METHODS
  Clinical data of 61 cases with ultra-low rectal cancer (distance from anal verge ranged from 4-5 cm) were analyzed retrospectively. The patients underwent sphincter-preserving procedure with intersphincteric resection and telescopic anastomosis.
  
  
  RESULTS
  There were 34 males and 27 females. The mean age was 56.7 years. The inferior border of the tumor was 4 cm above the anal verge in 21 cases, and 5 cm in 40 cases. There 55 patients with rectal adenocarcinoma in this cohort. The tumor was well-differentiated in 24 cases, moderately-differentiated in 29 cases, and poorly-differentiated in 2 cases. There were 6 cases with malignant adenoma. The TNM staging was T1N0M0 in 36 cases, T2N0M0 in 23, and T3N1M0 in 2. The ability to control defecation significantly improved in 1-3 months postoperatively, and returned to normal in 6-12 months. Two patients developed anastomotic leak (3.3%), and 3 anastomotic stenosis (4.9%) postoperatively. Fifty-four patients(88.5%) had follow-up. The median follow-up time was 6.2 years. The local recurrence rate was 5.6%, and the 5-year-survival rate was 73.5%.
  
  
  CONCLUSIONS
  Sphincter-preserving procedure with intersphincteric resection and telescopic anastomosis is a safe and effective procedure for ultra-low rectal cancer.
authors.affiliation: Department of General Surgery, General Hospital of Beijing Military Command, Beijing 100700, China. lsybz@126.com
authors.forename: Shi-yong
authors.initials: SY
authors.lastname: Li
authors.forename: Zhen-jia
authors.initials: ZJ
authors.lastname: Liang
authors.forename: Shu-jun
authors.initials: SJ
authors.lastname: Yuan
authors.forename: Gang
authors.initials: G
authors.lastname: Chen
authors.forename: Xue
authors.initials: X
authors.lastname: Bai
authors.forename: Fu-yi
authors.initials: FY
authors.lastname: Zuo
authors.forename: Bo
authors.initials: B
authors.lastname: Yu
authors.forename: Guang
authors.initials: G
authors.lastname: Chen
authors.forename: Xiao-jun
authors.initials: XJ
authors.lastname: Wei
authors.forename: Jun-feng
authors.initials: JF
authors.lastname: DU
authors.forename: Yi-shi
authors.initials: YS
authors.lastname: Xu
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001003:Anal Canal / Q000473:pathology / Q000601:surgery*; D000714:Anastomosis, Surgical / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012004:Rectal Neoplasms / Q000473:pathology / Q000601:surgery*; D012189:Retrospective Studies; D016896:Treatment Outcome