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Completed

NCT Number: NCT06097650

Cold Snare Polypectomy Versus Hot Snare Polypectomy for Resection of Small Pedunculated Polyps

Endoscopic resection of pedunculated polyps mainly focuses on how to prevent bleeding, and also needs to pay attention to the convenience of resection and the integrity of resection, which means that different endoscopic resection strategies should be adopted for pedunculated polyps with different stalk sizes. Small pedunculated polyps with heads smaller than 20mm and stalks less than or equal to 5mm are defined as having a relatively small risk of bleeding. Preliminary studies in recent years suggest that the use of cold snare polypectomy for small pedunculated polyps may also be a safe resection strategy. However, for small pedunculated polyps, ASGE and ESGE guidelines currently recommend hot snare polypectomy in the middle and lower pedicles (evidence level medium). Therefore, the provision of high-quality clinical evidence related to cold resection techniques in the resection strategy of small pedunculated polyps may provide a basis for revision of guidelines.

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Key information

Conditions

Pedunculated Colorectal Polyps Haemorrhage Hemorrhage Pathologic Processes Pathological Conditions, Signs and Symptoms

Age range

18 year–80 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

the First Affiliated Hospital of Ningbo University

Ningbo, Zhejiang, 315000, China

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • 1. Patients undergoing endoscopic resection of small pedicled polyps in the First Affiliated Hospital of Ningbo University, The Third People's Hospital Health Care Group of Cixi, Ninghai Second Hospital and Renmin Hospital of Yuyao City from October 2023 to August 2026; 2. Patients who voluntarily agreed to participate in this study and signed informed consent.

Exclusion criteria

  • 1. Persons under 18 years of age 2. Persons unwilling or unable to provide informed consent 3. Treatment or radiotherapy for malignant diseases, severe chronic heart or lung diseases, coronary or cerebrovascular events requiring hospitalization within the last 3 months 4.polyps with endoscopic features suspicious for carcinoma 5. Abdominal symptoms such as severe abdominal pain, abdominal distension, and nausea 6.Patients with inadequate intestinal preparation 7. Patients with lifelong anticoagulant therapy or severe bleeding diseases, patients who have recently taken anticoagulant drugs or antiplatelet drugs (within 1 week) 8.Pregnant or lactating

Treatment and study plan

Cold snare polypectomy

Other

Histological analyses suggest that cold snare polypectomy causes less damage to blood vessels in the submucosal layers, which results in a reduced incidence of hemorrhage

hot snare polypectomy

Other

According to current clinical guidelines, hot snare polypectomy is the recommended standard technique for the resection of pedunculated colorectal polyps.

Primary outcomes

  1. delayed hemorrhage

    Time frame: 2 days, 2 weeks and 4 weeks

    Any symptoms of gastrointestinal bleeding (e. g. hematochezia) occurred within 30 days after polypectomy and were classified as mild or severe according on the severity of the bleeding

Secondary outcomes

  1. Prevalence of immediate bleeding

    Time frame: 1 Minutes

    Immediate bleeding was defined as an intraoperative bleeding immediately after Immediate bleeding staging: If there is no bleeding, fill in 'none'; Level 1, spontaneous hemostasis within 60 seconds; Level 2, continuous small bleeding for more than 60 seconds; Level 3, continuous bleeding for more than 60 seconds requires endoscopic treatment; Level 4, arterial spray

Other outcomes

  1. Immediate perforation rate

    Time frame: Immediate

    perforation

Sponsors and collaborators

Lead sponsor

Ningbo No. 1 Hospital

Other

Collaborators

  • Ninghai Second Hospital
  • The People's Hospital of Yuyao City
  • The Third People's Hospital Health Care Group of Cixi

Registry information

Official study title

Cold Snare Polypectomy Versus Hot Snare Polypectomy for the Resection of Small Pedunculated Colorectal Polyps: a Multicentre Randomised Controlled Trial

Important dates

Study start
2023
Primary completion
2025
Study completion
2025
First posted
Oct 24, 2023
Registry last updated
Jul 24, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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