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Juan Lasa, Silvina Gándara, Liliana Spallone

Acta Gastroenterologica Latinoamericana

|June 8, 2017

Summary

Obesity increases the risk of developing metachronous adenomas during colonoscopy surveillance. Obese individuals are more likely to develop right-sided and advanced adenomas.

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Area of Science:

Gastroenterology
Oncology
Public Health

Background:

Obesity is a growing global health concern.
Previous studies suggest a link between obesity and increased colon adenoma risk.
Obesity may influence the pattern of adenoma recurrence after initial detection.

Purpose of the Study:

To investigate if metachronous adenoma characteristics differ between obese and non-obese patients undergoing colonoscopy surveillance.
To identify factors associated with metachronous adenoma development.

Main Methods:

Prospective evaluation of 825 patients aged over 18 undergoing surveillance colonoscopy.
Obesity defined by a body mass index (BMI) ≥ 30.
Comparison of metachronous adenoma rates, size, location, morphology, and histology between obese and non-obese groups.

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Main Results:

Obesity was significantly more frequent in patients with metachronous adenomas (40% vs. 25.71%, p < 0.001).
Obesity was independently associated with metachronous adenoma presence (OR 1.7).
Obesity also correlated with a higher risk of right colon adenomas (OR 2.4) and advanced adenomas (OR 1.99).

Conclusions:

Obesity is a significant risk factor for metachronous adenomas detected during colonoscopy surveillance.
Obese patients have an increased likelihood of developing right-sided and advanced adenomas.
Men and individuals with a family history of colorectal cancer/adenoma face a higher risk.