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Endoclip Papillaplasty Recover Sphincter of Oddi Function After Endoscopic Sphincterotomy for Bile Duct Gallstones

2019-12-05 00:03:21 | BioPortfolio

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.Briefly, the operator assessed the patulous biliary opening and ductal axis, positioned and adjusted eachendoclip in order to close the patulous opening

Description

In order to reduce PEP risk, a rectal non-steroidal anti-inflammatory drug was administered 30 minutes before the ERCP in all patients. As the standard of care at the study hospital, the patients swallowed 2% lidocaine hydrochloride gel for local pharyngeal anesthesia, and 10 mg of diazepam were injected intramuscularly before ERCP. Anti-convulsants were not allowed. ERCP was performed in a standard manner using a side-viewing endoscope.

After successful selective deep cannulation of the common bile duct with a guidewire, the guidewire was extracted, and SOM was performed before contrast agent was introduced to determine the margins of the choledocholithiasis.

EST was performed, and the size of EST, which was large incision (incision to the full part of the ampulla) or long enough to ensure successful stone extraction, depended on the transverse diameter of the stones.

After stones removal, a 7.5Fr×26 cm biliary plastic stent, which was a suspended overlong biliary stent formed from a nasobiliary drainage tube (Boston Scientific), was placed to ensure that the biliary duct would not be clipped during endoclip papillaplasty and to reduce duodenobiliary reflux during the next 3-week before follow-up.

The investigators will recruit patients according to admission criteria and exclusion criteria. The participants underwent SOM before, immediately after EST, and 3 weeks after EST with endoclip papilloplasty. The participants were followed for 3 days during hospitalized. Complications including perforation, bleeding, and PEP were recorded. Blood routine, pancreatic enzymes (amylase and lipase), and liver function (serum alanine aminotransferase, aspartate aminotransferase, r-glutamyl transpeptidase, and alkaline phosphatase) were tested at 4 and 24 h after ERCP. All participants were followed at 3 weeks. The stent will be romoved with Allis clamp 3 weeks after the procedure.Symptoms were examined and blood tests as above were repeated ahead of stents retrieval and sphincter of Oddi monitoring through duodenoscope.

Study Design

Conditions

Sphincter of Oddi Function

Intervention

Endoclip papillaplasty

Location

Xiue yan
Beijing
Beijing
China
86-100191

Status

Recruiting

Source

Peking University Third Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2019-12-05T00:03:21-0500

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Medical and Biotech [MESH] Definitions

Surgical incision of the SPHINCTER OF ODDI in the management of COMMON BILE DUCT DISEASES (e.g., CHOLEDOCHOLITHIASIS; and SPHINCTER OF ODDI DYSFUNCTION).

Organic or functional motility disorder involving the SPHINCTER OF ODDI and associated with biliary COLIC. Pathological changes are most often seen in the COMMON BILE DUCT sphincter, and less commonly the PANCREATIC DUCT sphincter.

Tumor or cancer of the COMMON BILE DUCT including the AMPULLA OF VATER and the SPHINCTER OF ODDI.

A motility disorder characterized by biliary COLIC, absence of GALLSTONES, and an abnormal GALLBLADDER ejection fraction. It is caused by gallbladder dyskinesia and/or SPHINCTER OF ODDI DYSFUNCTION.

Diseases of the COMMON BILE DUCT including the AMPULLA OF VATER and the SPHINCTER OF ODDI.

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