Clinical Trial: A Repeated Instruction by Telephone on the Day Before Colonoscopy to Patients Undergoing Colonoscopy

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Repeated Instruction by Telephone on the Day Before Colonoscopy Improves the Quality of Bowel Preparation and Colonoscopy Procedure : a Prospective Randomized, Controlled Trial

Brief Summary: Cell phone retell the instruction of bowel preparation on the day before colonoscopy would help patient to prepare for colonoscopy and improve the quality of the bowel preparation.

Detailed Summary:

Colonoscopy is the gold standard in the diagnosis of colorectal disease. The success of colonoscopy depends on high-quality bowel preparation by patients. Inadequate bowel cleansing reduces the speed, the cecal intubation rate, and the number of polyps detected. It also increases costs, mostly due to repeated procedures. The quality of bowel cleansing has remained suboptimal even though numerous different products and regimens have been tested and compared in no fewer than six meta-analyses. Therefore, a completely different approach to improve precolonoscopy bowel cleansing is welcome.

There are many factors effect the bowel preparation such as age, cirrhosis diabetes, drug compliance, cerebral infarction, dementia, history of major surgery. 20% of patients with poor bowel preparation were due to bad compliance. Studies found that addressing patient perceptions with an inexpensive and simple booklet based on the Health Belief Model improved preparation quality. We assume that doctor retelling the instruction of bowel preparation by cell phone on the day before colonoscopy would help patient to prepare for colonoscopy and improve the quality of the bowel preparation.


Sponsor: Fourth Military Medical University

Current Primary Outcome: Adequate bowel preparation quality at the time of colonoscopy defined by Ottawa score<6 [ Time Frame: up to 3 months ]

Ottawa score：A)cleanliness of each part of the colon: 0=excellent 1=good 2=fair 3=poor 4=inadequate B)fluid in whole colon: small=0 moderate=1 large=2

The bowel preparation was considered inadequate if (1) inadequate visualization on colonoscopy defined by Ottawa score≥6; (2) the colonoscopy was cancelled because of poor bowel preparation or personal reasons; (3) incomplete colonoscopy.



Original Primary Outcome: Ottawa score [ Time Frame: up to 3 months ]

A)cleanliness of each part of the colon: 0=excellent 1=good 2=fair 3=poor 4=inadequate B)fluid in whole colon: small=0 moderate=1 large=2


Current Secondary Outcome:

  • Cecum intubation time [ Time Frame: up to 3 months ]
    Total time of colonoscope intubation from anus to cecum
  • Withdrawal time [ Time Frame: up to 3 months ]
    Total time of colonoscope intubation from cecum to anus
  • Polyp detection rate [ Time Frame: up to 3 months ]
    The proportion of participants with at least one polyp in each group
  • Compliance rate to instruction [ Time Frame: up to 3 months ]
    The proportion of participants compliance to instruction of bowel preparation
  • Willingness undergo a repeated bowel preparation [ Time Frame: up to 3 months ]
    The number of patients have a willingness to undergo a repeated bowel preparation if needed


Original Secondary Outcome:

  • the need for repeat colonoscopy because of inadequate bowel preparation [ Time Frame: up to 3 months ]
    the number of patients need for repeat colonoscopy because of inadequate bowel preparation
  • Cecum intubation time [ Time Frame: up to 3 months ]
    Total time of colonoscope intubation from anus to cecum
  • Withdrawal time [ Time Frame: up to 3 months ]
    Total time of colonoscope intubation from cecum to anus
  • Adenoma detection rate [ Time Frame: up to 3 months ]
    The proportion of participants with at least one adenoma in each group
  • patient tolerance of bowel preparation and colonoscopy. [ Time Frame: up to 3 moths ]
    feelings of patient undergoing bowel or colonoscopy


Information By: Fourth Military Medical University

Dates:
Date Received: April 24, 2012
Date Started: February 2012
Date Completion:
Last Updated: December 1, 2013
Last Verified: December 2013