Annals of Coloproctology

Original Articles

Colorectal cancer

Estimation of risk posed by malignant polyps amongst colorectal surgeons in Australia and New Zealand: Andrew P. Zammit, Ian Brown, John D. Hooper, David A. Clark, Andrew D. Riddell; Ann Coloproctol. 2024;40(2):114-120. Published online March 25, 2024; DOI: https://doi.org/10.3393/ac.2023.00178.0025

1,601 View
105 Download

Abstract PDF Supplementary Material: Purpose
The estimation of the risk posed by malignant polyps for residual or lymphatic disease plays a central role. This study investigated colorectal surgeons’ assessment of these risks associated with malignant polyps.
Methods
A cross-sectional questionnaire was electronically administered to colorectal surgeons in Australia and New Zealand in October 2022. The questionnaire contained 17 questions on demographics, when surgeons consider colorectal resection appropriate, and the risk assessment for 5 hypothetical malignant polyps.
Results
The mean risk of residual or lymphatic disease that would prompt surgeons to recommend colonic resection was 5%. However, this increased to a mean risk of 10% if the malignant polyp was located in the rectum, and the only resection option was abdominoperineal resection with end-colostomy. There was high concordance between the estimated risk of residual or lymphatic disease by colorectal surgeons and the Association of Coloproctology of Great Britain and Ireland (ACPGBI) guidelines for the 5 hypothetical malignant polyps, with the ACPGBI estimated risk lying within the 95% confidence interval for 4 of the 5 malignant polyps. Nonetheless, 96.6% of surgeons felt that an online risk calculator would improve clinical practice.
Conclusion
Colorectal surgeons in Australia and New Zealand accurately estimated the risk posed by malignant polyps. An online risk calculator may assist in better conveying risk to patients.

Clinical Significance of the Colorectal Polyps.: Bae, Tae Seok , Jung, Ki Hoon , Lee, Joon Hee , Oh, Min Gu , Chung, Byung Ook , Bae, Sung Han , Ahn, Woo Sup; J Korean Soc Coloproctol. 2000;16(4):247-253.

1,106 View
8 Download

Abstract PDF: The aim of this study was to investigate the association of colorectal polyps with carcinoma of the colon and rectum.
METHODS
Between January 1995 and December 1998, 203 consecutive patients with 423 colorectal polyps retrospectively documented at the Department of General Surgery and College of Medicine in Dongguk University.
RESULTS
The peak age group of the colorectal polyp was in the fifth decades (33.5%). The proportions of malignant polyps were as follows: for size, 5.2% of polyps less than 1.0 cm and 19.5% of polyps larger than 1 cm (P<0.05); for morphology, 2.6% in polyps of Yamada type I, II and 18.5% in polyps of Yamada type III, IV (P<0.05); for location, 13.4% of the polyps located in rectum and sigmoid colon and 7.6% of the polyps located in descending to ascending colon (P>0.05); for number of polyp, 4.5% in cases of single polyp and 25.0% in cases of multiple polyps (P<0.05); for underlying histology, 9.2% in cases of tubular adenoma and 19.2% in cases of villous adenoma (p<0.05). The presence of distal adenomatous polyp was increased the risk of presence of the proximal adenomas (59.7%), whereas the presence of hyperplastic polyp did not (16.7%).
CONCLUSIONS
The malignant potential of colorectal polyps are correlated with size, histologic type, morphologic shape, multiplicity and distal location. The presence of hyperpalstic polyp should not be indication for colonoscopy because they are not associated with proximal adenoma when adjusting for patient characteristics and presence of distal adenoma.

First
Prev
Page of 1
Next
Last

Search