Safety of Cold Snare Polypectomy in Patients With Uninterrupted Antiplatelet Agent

Summary

Polypectomy is regarded as high risk for bleeding. Several guidelines recommend continuous use of aspirin during polypectomy. However for clopidogrel, widely used antiplatelet agent, cessation of 5-7 is recommended. There is insufficient data regarding clopidogrel on post polypectomy bleeding. Delayed bleeding after polypectomy in patients with clopidogrel was reported as 3%. A recent study showed that delayed bleeding rate in patients with clopidogrel didn't differ that of who stopped clopidogrel. However the rate for delayed bleeding was 4%, higher than the previous studies. More studies are needed to conclude the safety of polypectomy in clopidogrel users.

Cold snare polypectomy (CSP) can resect polyps without electrical energy. CSP are safe than conventional endoscopic mucosal resection in high risk for bleeding.

The polypectomy techniques in most of studies were heterogenous, where delayed bleeding was investigated in clopidogrel users. There is no study to investigate safety of CSP in patients with clopidogrel users to date. The investigators hypothesized that the bleeding risk of CSP in patients with clopidogrel users would be similar to that of aspirin users.

In this multicenter prospective study, the investigators aimed to compare the safety of CSP between aspirin and clopidogrel users.

Conditions

• Post Polypectomy Bleeding

Interventions

PROCEDURE

cold snare polypectomy

Resection of colorectal polyp using cold snare polypectomy method. The polyp will be resected by mechanical force of snare without electrical cautery.

Sponsors & Collaborators

• Seoul St. Mary's Hospital

  collaborator OTHER

• St Vincent's Hospital

  collaborator OTHER

• Uijeongbu St. Mary's Hospital

  collaborator UNKNOWN

• Soonchunhyang University Hospital

  collaborator OTHER

• Bucheon St. Mary's Hospital

  collaborator OTHER

• Eunpyeong St. Mary's Hospital

  collaborator OTHER

• Gangneung Asan Hospital

  collaborator OTHER

• Keimyung University Dongsan Medical Center

  collaborator OTHER

• Incheon St.Mary's Hospital

  lead OTHER

Principal Investigators

• Hyun Gun Kim, MD, Ph.D · Soonchunhyang University Hospital

Eligibility

Min Age

18 Years

Max Age

80 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2020-04-10

Primary Completion

2021-12-31

Completion

2023-12-31

Countries

• South Korea

Study Locations