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Endoclip Papillaplasty Restores Sphincter of Oddi Function

NCT03795584 · Status: UNKNOWN · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2020-08-05

No results posted yet for this study

Summary

Gallstones in the common bile duct (CBD) may be asymptomatic but may lead to complications such as acute cholangitis or acute pancreatitis. EST is widely used for the treatment of bile duct gallstones. Despite its efficacy and improvements over time, EST is still associated with complications such as hemorrhage, perforation, pancreatitis, and permanent loss of function of the sphincter of Oddi (SO). Permanent loss of SO function can cause duodenobiliary reflux, bacterial colonization of the biliary tract, gallstone recurrence, cholangitis, and liver abscess.

Endoscopic papillary balloon dilation (EPBD) was first proposed in 1983 and it is now recognized as an alternative technique for the removal of CBD gallstones. The small balloon (diameter \<8 mm) is less invasive, reduces the occurrence of adverse effects, and preserves the SO function, but it has limitations in the presence of CBD gallstones ≥10 mm in diameter. EST combined with endoscopic papillary large-balloon dilation (EPLBD) has been introduced for patients with large gallstone, but EPLBD widens the distal common bile duct and still may cause SO function damage, partially or completely. Repairing the ampulla of Vater and SO may reduce the long-term complication rates, especially gallstone recurrence. Unfortunately, no efficient strategy has been proposed. The present pilot study aimed to examine the feasibility and efficiency of an innovative strategy named endoclip papilloplasty to repair the damaged ampulla and recover SO function. The advantage of this device is that it can be rotated clockwise or counterclockwise by turning the handle until the correct position is achieved. Another advantage is if the clip is not in desired position, it may be re-opened and repositioned. Once satisfying clip positioning is achieved, the clip can be firmly attached to the tissue by pulling the slider back until tactile resistance is felt in the handle.

Conditions

  • Sphincter of Oddi Function

Interventions

PROCEDURE

sterile repositionable hemostasis clipping device close the large duodenal papilla incision

After the bile duct stent was placed, the investigators can use sterile repositionable hemostasis clipping device to close large duodenal papilla incision at 11 o'clock on the duodenal papilla.

Sponsors & Collaborators

  • Peking University Third Hospital

    lead OTHER

Principal Investigators

  • Yonghui Huang, MD · Peking University Third Hosptial

Eligibility

Min Age
18 Years
Max Age
85 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2018-05-01
Primary Completion
2019-03-21
Completion
2021-05-01

Countries

  • China

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT03795584 on ClinicalTrials.gov