Related Experiment Videos
Surveillance colonoscopy after resection for colon carcinoma
P G Brady1, R J Straker, S Goldschmid
1Department of Medicine, University of South Florida College of Medicine, Tampa.
Southern Medical Journal
|July 1, 1990
Summary
Surveillance colonoscopy in patients with prior colorectal carcinoma effectively detects new, localized cancers. Following two clear annual exams, follow-up colonoscopies can be spaced every 3-5 years.
Area of Science:
- Gastroenterology
- Oncology
- Preventive Medicine
Background:
- Colorectal carcinoma survivors require ongoing monitoring for secondary malignancies.
- Early detection of recurrent or new colorectal cancers is crucial for improved patient outcomes.
Purpose of the Study:
- To evaluate the efficacy of periodic surveillance colonoscopy in asymptomatic patients with a history of colorectal carcinoma.
- To determine the yield of surveillance colonoscopy in detecting neoplastic lesions and secondary colorectal cancers.
Main Methods:
- A prospective study involving 207 asymptomatic patients with a previous history of colorectal carcinoma.
- Periodic surveillance colonoscopies were conducted over 2 to 8 years.
- Detailed recording of neoplastic lesions, synchronous/metachronous carcinomas, and anastomotic recurrences.
Main Results:
- Thirty-five percent of patients had neoplastic lesions (≥5 mm) on initial surveillance colonoscopy.
- Synchronous or metachronous carcinomas were detected in 11 patients, with 82% localized.
- Anastomotic recurrences were found in six patients, correlating with primary carcinoma stage.
- Two negative annual colonoscopies were needed to confirm clearance of neoplastic lesions.
Conclusions:
- Surveillance colonoscopy is highly effective in detecting asymptomatic, localized secondary colorectal cancers.
- The risk of a second carcinoma did not correlate with initial neoplastic polyp findings.
- Following two negative annual colonoscopies, surveillance intervals can be extended to 3-5 years.