title: Colonoscopic screening and follow-up for colorectal cancer in the elderly.
abstract: OBJECTIVE
  To improve the prevention and treatment of senile patients with colorectal cancer by evaluating the importance of colonoscopy in clinical screening and follow-up.
  
  
  METHODS
  Clinical screening of colonoscopy was performed for 2196 patients aged 60-90 years old according to the protocol,and 1740 of them (79.2%) were followed-up.
  
  
  RESULTS
  Colorectal cancer was found in 52 patients, and the detectable rate was 2.4%. Among them, 19 were diagnosed as early colorectal cancer, accounting for 36.5% of the detected colorectal cancer. Among the followed-up patients, early colorectal cancer was found in 9, accounting for 45.0% of the detected colorectal cancer. The resectable rate and 5 years survival rate of colorectal cancer were 97.7% and 80.9% respectively. The incidence of complication was 0.05%, and the successful rate of cecum intubation was 98.9%.
  
  
  CONCLUSIONS
  Colonoscopic screening and follow-up of the elderly for colorectal cancer and pre-cancerous lesion (adenomatoid polyp) can increase the detectable rate of early colorectal cancer and improve its prevention and treatment.
authors.affiliation: Department of Gastroenterology, General Hospital of the Chinese PLA, Beijing 100853, China. jfjzyy301@163.com
authors.forename: Jun
authors.initials: J
authors.lastname: Wan
authors.forename: Zi-Qi
authors.initials: ZQ
authors.lastname: Zhang
authors.forename: Cheng
authors.initials: C
authors.lastname: Zhu
authors.forename: Meng-Wei
authors.initials: MW
authors.lastname: Wang
authors.forename: Dong-Hai
authors.initials: DH
authors.lastname: Zhao
authors.forename: Yong-He
authors.initials: YH
authors.lastname: Fu
authors.forename: Jian-Ping
authors.initials: JP
authors.lastname: Zhang
authors.forename: Ya-Hong
authors.initials: YH
authors.lastname: Wang
authors.forename: Ben-Yan
authors.initials: BY
authors.lastname: Wu
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003113:Colonoscopy; D015179:Colorectal Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000401:mortality / Q000601:surgery; D006801:Humans; D008403:Mass Screening; D008875:Middle Aged; D015996:Survival Rate