Patients at Risk of Colorectal Cancer
Conditions
Keywords
colorectal tumor, colorectal cancer, CT scan, colonoscopy
Brief summary
Colonoscopy is the mainstay modality of choice in colorectal cancer screening worldwide. However, the rate of colonoscopy for colorectal cancer screening is very low (approximately 5-10%) because of the limited local medical resources (such as endoscopists and regional endoscope). This observational diagnostic test study aims to compare the diagnostic yield of routine computed tomography and colonoscopy in detecting colorectal tumors in patients at risk of colorectal cancer (aged more than 50 years and FIT+). The main question\[s\] it aims to answer are: 1. To compare the diagnostic yield between the routine computed tomography and colonoscopy. 2. To compare the procedure-related adverse events between the routine computed tomography and colonoscopy.
Detailed description
All enrolled patients underwent routine CT scans of whole abdomen, then subsequently under went a colonoscopy on the next day
Interventions
All patients were admitted and worked up as inpatient cases. A blood test was obtained and a CT whole abdomen was performed for all patients in the evening. On the next day, all patients were prescribed for bowel preparation in the morning, then subsequently underwent colonoscopy in the afternoon.
Sponsors
Study design
Eligibility
Inclusion criteria
1. Fit test + 2. Normal platelet count and normal result of PT, PTT
Exclusion criteria
1. pregnancy or lactation 2. uncontrolled Diabetes Mellitus, hypertension, asthma, congestive heart failure 3. recent coronary artery disease within 3 months 4. eGFR lesser than 30 mL/min/1.73m2 5. hemophilia or uncontrolled or uncorrected coagulopathy
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Diagnostic yield in diagnosis colorectal tumor | 2 weeks | Sensitivity, specitivity, accuracy |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Procedure-related adverse events | 2 weeks | Procedure-related adverse events such as, contrast induced nephropathy, contrast allergy, colonoscope-related perforation, post polypectomy bleeding |
Countries
Thailand