Background/aims: Factors that increase the complications arising from colonoscopic polypectomy have been well studied; however, data regarding complications from outpatient polypectomy is limited. The aim of this study was to identify the safety and costeffectiveness of outpatient colonoscopic polypectomy.
Methodology: Consecutive series of 804 patients who underwent colonoscopic polypectomy for 1,446 polyps were analyzed. Clinical outcomes, complications and medical costs were compared between outpatient (n=731) and planned inpatient groups (n=73) to assess the safety and cost-effectiveness of the colonoscopic polypectomy. The risk factors for polypectomy- related complications were assessed by a multivariate logistic regression analysis.
Results: There was no difference in the complication rates between the outpatient polypectomy group (1.1%) and the planned inpatient group (2.7%), and outpatient service was not a significant risk factor of complications in the colonoscopic polypectomy by multivariate analysis. The outcomes of complications were not worsened by outpatient procedures. However, total cost for an outpatient polypectomy for a single polyp without any complication was 37.4% lower than that for a planned inpatient polypectomy, which was a significant reduction (p=0.000).
Conclusions: Colonoscopic polypectomy can be safely and cost-effectively performed in the outpatient setting with minimal controllable complications.
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