How Do I Manage Post-Polypectomy Bleeding?

Sung Pil Hong

doi:10.5946/ce.2012.45.3.282

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Special Issue Articles of IDEN 2012 Session II - Lower Gut How Do I Manage Post-Polypectomy Bleeding?: Sung Pil Hong; Clinical Endoscopy 2012;45(3):282-284.
DOI: https://doi.org/10.5946/ce.2012.45.3.282
Published online: August 22, 2012

Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea.

Correspondence: Sung Pil Hong. Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Korea. Tel: +82-2-2228-1990, Fax: +82-2-393-6884, sphong@yuhs.ac

• Received: July 11, 2012 • Revised: July 25, 2012 • Accepted: July 25, 2012

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Abstract
INTRODUCTION
MANAGEMENT OF IMMEDIATE BLEEDING
MANAGEMENT OF DELAYED BLEEDING
CONCLUSIONS
NOTES
REFERENCES

Abstract

Colonoscopic polypectomy is an effective method for prevention of colorectal cancer and has become one of the most common procedures worldwide. Most colorectal polyps can be removed safely by various polypectomy techniques; however, serious complications can occur. Postpolypectomy bleeding is the most common complication of colonoscopic polypectomy, accounting for 0.3% to 6.1% of polypectomy. This issue summarizes various endoscopic techniques to treat postpolypectomy bleeding.
Keywords: Colonic polyps; Colonoscopy; Hemorrhage

INTRODUCTION

Postpolypectomy bleeding is the most common complication of colonoscoipc polypectomy, accounting for 0.3% to 6.1% of polypectomy.1,2 Bleeding can occur immediately following polypectomy or be delayed up to 30 days. The risk is related to the type and size of polyp, the technique of polypectomy, and the coagulation status of the patient. In most of cases, postpolypectomy bleeding can be controlled endoscopically.3,4 Therefore endoscopists should be aware of various techniques of colonoscopic hemostasis.

MANAGEMENT OF IMMEDIATE BLEEDING

Immediate bleeding has been reported in 1.5% to 2.8% following polypectomy.5 The risk increases when blended current is used and when cold snaring (pulling the snare without the use of cautery) is performed. Age of ≥65 years, cardiovascular or chronic renal disease, use of anticoagulants, polyp size greater than 1 cm, polyp morphology, poor bowel preparation, cutting mode of electrosurgical current, and inadvertent cutting of a polyp before current application are noted as independent risk factors for immediate bleeding.6 Most immediate bleeding can be controlled with various endoscopic techniques. The technique for hemostasis depends upon the severity of bleeding, the type of polyp, and individual preference. A combination of hemostasis techniques is frequently performed.7

Application of pressure

Especially for pedunculated polyps, immediate bleeding after polypectomy can easily be stopped by regrasping the pedicle with a snare and holding pressure on the pedicle to stop blood flow. After complete hemostasis of active bleeding, further techniques of bipolar cautery, injection, or endoclips can be applied.

Injection with epinephrine

A 1:10,000 dilution of epinephrine is commonly used, which is simply injected to the bleeding lesion. Epinephrine injection is frequently combined with other hemostatic techniques.

Cautery

Cautery is an effective method to treat a bleeding site (Fig. 1). It is done with thermal probes, bipolar cautery, or the tip of a polypectomy snare. Because the colon wall is very thin, the current should be decreased by approximately 50% relative to that used in the upper gastrointestinal tract. For heat probe, 15 J is safe and 10 to 15 W for bipolar cautery. When applying with thermal probes or bipolar cautery, endoscopists should not press the devices to the lesion, which increase the risk of perforation.

Hemoclips

Hemoclips is a safe and effective method to treat immediate bleeding. Sometimes it is difficult to approach a lesion with clips because of the location (Fig. 2). In these cases, cap device help to apply clips successfully. Previous study reported that 2.9±2 clips were required to achieve complete hemostasis.

Loops and band ligators

Massive immediate and delayed postpolypectomy bleeding can be treated with loops or band ligation. When using band ligation, high suction pressure should be avoided to prevent perforation.

MANAGEMENT OF DELAYED BLEEDING

Delayed bleeding occurs in up to 2% of patients receiving polypectomy.7 Delayed bleedings develops on average 5 to 7 days after polypectomy, but it can occur up to 30 days later. Polyp size is related to the risk of delayed bleeding from 1% for polyps less than 10 mm to 6.5% for those over 20 mm.8,9 Old age, hypertension, large sessile polyps, polyps at right colon, and polypectomy with pure coagulation are known as the risk factors for delayed bleeding. Non-steroidal anti-inflammatory drugs or aspirin use do not increase the risk of delayed bleeding.

Most delayed postpolypectomy bleeding can be managed successfully with colonoscopic techniques (Fig. 3). About half of patients who are admitted to hospital with hematochezia within 6 hours to 14 days after polypecotmy require blood transfusion. The timing of intervention depends on the amount and the rate of bleeding. Colonoscopy should be performed immediately in patients with active bleeding.10 Epinephrine injection, thermal therapy or hemoclips are usually performed alone or in combination.

CONCLUSIONS

Bleeding is the most common postpolypectomy complication frequently encountered by endoscopists. Most of bleeding can be effectively managed with endoscopic techniques. Therefore endoscopists should know and master various endoscopic techniques to treat postpolyectomy bleeding successfully.

The author has no financial conflicts of interest.

REFERENCES

1. Sorbi D, Norton I, Conio M, Balm R, Zinsmeister A, Gostout CJ. Postpolypectomy lower GI bleeding: descriptive analysis. Gastrointest Endosc 2000;51:690–696.Article PubMed
2. Levin TR, Zhao W, Conell C, et al. Complications of colonoscopy in an integrated health care delivery system. Ann Intern Med 2006;145:880–886.Article PubMed
3. Singaram C, Torbey CF, Jacoby RF. Delayed postpolypectomy bleeding. Am J Gastroenterol 1995;90:146–147.PubMed
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5. Consolo P, Luigiano C, Strangio G, et al. Efficacy, risk factors and complications of endoscopic polypectomy: ten year experience at a single center. World J Gastroenterol 2008;14:2364–2369.Article PubMed PMC
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7. Waye JD, Lewis BS, Yessayan S. Colonoscopy: a prospective report of complications. J Clin Gastroenterol 1992;15:347–351.Article PubMed
8. Lee SH, Chung IK, Kim SJ, et al. Comparison of postpolypectomy bleeding between epinephrine and saline submucosal injection for large colon polyps by conventional polypectomy: a prospective randomized, multicenter study. World J Gastroenterol 2007;13:2973–2977.Article PubMed PMC
9. Shioji K, Suzuki Y, Kobayashi M, et al. Prophylactic clip application does not decrease delayed bleeding after colonoscopic polypectomy. Gastrointest Endosc 2003;57:691–694.Article PubMed
10. Church JM. Experience in the endoscopic management of large colonic polyps. ANZ J Surg 2003;73:988–995.Article PubMed

Fig. 1

Endoscopic cauterization for the postpolypectomy bleeding. (A, B) Bleeding was treated with hemostatic forcep.

Fig. 2

Endoscopic clipping for the immediate bleeding. (A, B, C) Immediate postpolypectomy bleeding was treated with hemostatic clips.

Fig. 3

Endoscopic clipping for the delayed bleeding. (A, B) Delayed postpolypectomy bleeding was treated with hemostatic clips.

Figure & Data

REFERENCES

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