Trial Information

Outcome of Colonoscopy Screening and Surveillance

The investigator's goal is to collect data from the endoscopy reports and clinic station
reports to complete a descriptive analysis of the demographics, colonoscopy procedure
performance, and assess the type of benign colon polyps detected during screening and
surveillance from 02/01/2009 - 12/31/2020.

Specific variable to be reviewed:

1. Patient Demographics: Age, Sex, Race, Height, Weight, BMI (patient privacy will be
acknowledged).

2. Indications for Colonoscopy (screening, surveillance, symptoms or tertiary referral
[EMR])

3. Comorbid conditions: cancer and surgical history, medical conditions,

4. Colonoscopy procedure; quality of colon preparation (using the Boston Bowel Preparation
Scale) 0 - 3 for each section of the colon (Ascending, Transverse, Descending and Total
Colon) , cecal intubation rate, cecal intubation and total procedure time, type of
colonoscope (if CO2 was used in the procedure and techniques for colonoscope insertion,
including position changes.

5. Examination findings: number of polyps and nature of polyps removed (site, size,
surface, vascular pattern); type of polyp removed; optical features and histology of
polyps.

6. Resection techniques: biopsy, snare resection, endoscopic mucosal resection etc.

7. Including Pathology report findings so that a comparison can be made of the optical
features and actual pathology report.

8. Outcomes of colonoscopy: adenoma detections

9. Outcome of colonoscopy: Complications (Bleeding and performance)