Korean J Gastrointest Endosc.  2010 Mar;40(3):164-169.

Risk Factors for Delayed Bleeding after Colonoscopic Polypectomy

• Han WJ
• Kim YJ
• Kim JG
• Kim TK
• Lee SY
• Cho MS
• Chung JW
• Park DK
• Hahm KB
• Kim YS
• Kim JH

Abstract

BACKGROUND/AIMS
The aim of this study was to identify risk factors for delayed bleeding after colonoscopic polypectomy.
METHODS
3,530 polypectomies in 1,542 patients were evaluated. Risk factors were identified among patient-related factors (age, sex, comorbidity, anticoagulants, antiplatelets), polyp-related factors (size, shape, location, histology), and procedure-related factors (experience of the endoscopist, sedation, resection method).
RESULTS
Delayed bleeding occurred in 26 lesions (0.7%) of 24 patients (1.6%). Polyp-based multivariate analysis revealed that polyp size greater than 15 mm (OR, 2.882; 95% CI, 1.106 to 7.506; p=0.030) and sedation-free colonoscopy (OR, 2.606; 95% CI, 1.116 to 6.084; p=0.027) were significant risk factors for delayed bleeding after polypectomy. In colonoscopy-based analysis, hypertension increased the risk of delayed bleeding after polypectomy (OR, 2.938; 95% CI, 1.009 to 8.557; p=0.048).
CONCLUSIONS
Large polyp size, sedation-free colonoscopy, and hypertension are associated with delayed bleeding after colonoscopic polypectomy.

Keyword

Bleeding; Colonoscopy; Complication; Polypectomy; Sedation

MeSH Terms

Anticoagulants
Colonoscopy
Comorbidity
Hemorrhage
Humans
Hypertension
Multivariate Analysis
Polyps
Risk Factors
Anticoagulants