Prophylactic submucosal saline-adrenaline injection in colonoscopic polypectomy Prospective randomized study

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Abstract

Background

Endoscopic polypectomy is a standard method of treatment of gastrointestinal polyps, but is associated with substantial risk of complications. The most common is hemorrhage, the rate of which varied between 0.3%, and 6%. Various prophylactic techniques have been used to reduce this incidence. The aim of this study was to establish whether the prophylactic injection of adrenaline-saline solution reduces the risk of postpolypectomy bleeding in colonoscopic polypectomy.

Methods

Between May 2000 and June 2002, patients with colorectal polyps of size ≥1 cm were randomized to receive submucosal epinephrine injection (group A) or no injection (group B). The polypectomies were carried out using the conventional method. In group A, epinephrine (1/10,000) was injected into the stalk or base of the polyp. The patients were observed for complications.

Results

A total of 69 patients with 100 polyps were enrolled in this study: n = 50 in group A, and n = 50 in group B, according to randomization. There were a total of nine episodes of postpolypectomy hemorrhage, one in the epinephrine group and eight in the control group (1/50 vs 8/50, p < 0.05). The bleeding correlated with the size of the polyps and the diameter of the stalks.

Conclusions

Epinephrine injection prior to colonoscopic polypectomy is effective in preventing bleeding.

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