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Competing-Risk Nomogram for Predicting Cancer-Specific Survival in Multiple Primary Colorectal Cancer Patients after Surgery
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Published on: September 27, 2024

Risk factors for delayed post-polypectomy hemorrhage: a case-control study.

Jeong Ho Kim1, Hyun Jeong Lee, Ji Won Ahn

  • 1Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Journal of Gastroenterology and Hepatology
|February 2, 2013
PubMed
Summary

Large, pedunculated polyps in the right colon increase the risk of delayed post-polypectomy hemorrhage after colonoscopic polypectomy. Identifying these risk factors aids in preventing this rare complication.

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Published on: September 27, 2024

Area of Science:

  • Gastroenterology
  • Endoscopic Surgery

Background:

  • Delayed post-polypectomy hemorrhage is a rare but serious complication following colonoscopic polypectomy.
  • Identifying risk factors is crucial for preventing and managing this adverse event.

Purpose of the Study:

  • To identify significant risk factors associated with delayed post-polypectomy hemorrhage.
  • To analyze patient and polyp characteristics that predict hemorrhage development.

Main Methods:

  • Retrospective case-control study design.
  • Inclusion of patients who developed delayed hematochezia post-polypectomy and a control group with uneventful polypectomy (4:1 ratio).
  • Multivariate logistic regression analysis to determine risk factors.

Main Results:

  • Delayed hemorrhage occurred in 0.7% of lesions and 1.3% of patients.
  • Significant risk factors identified: polyps larger than 10 mm (OR 2.355), pedunculated polyps (OR 3.473), and polyps in the right hemi-colon (OR 2.690).
  • Comorbidities were not found to be a significant risk factor.

Conclusions:

  • Polyp size (large), shape (pedunculated), and location (right hemi-colon) are substantial risk factors for delayed hemorrhage.
  • These findings can inform risk stratification and preventative strategies during colonoscopic polypectomy.