ArticleUnited European gastroenterology journal2021
Transabdominal ultrasonography to reduce the burden of X-ray imaging in prophylactic pancreatic stent localization after ERCP-A prospective trial.
Article in United European gastroenterology journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 2 citations in OpenAlex.
- A novel ultrasound-based algorithm for the detection of pancreatic stents placed for prophylaxis of post-ERCP pancreatitis: a prospective trial.Ultraschall in der Medizin (Stuttgart, Germany : 1980) · 2025Trial
- Practices and Perspectives on Prophylactic Pancreatic Stent Removal Practice: The PIRATE Survey.Endoscopy international open · 2026Article
- Post-endoscopic retrograde cholangiopancreatography pancreatitis: Mechanistic pathways, diagnostic benchmarks, and emerging and mitochondria-targeted therapies.World journal of gastrointestinal surgery · 2025Review
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Authors and funding
12 authors at 2 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundBefore performing endoscopy to remove prophylactic pancreatic stents placed in patients with high risk of post-endoscopic retrograde cholangiopancreatography pancreatitis (PEP), X-ray imaging is recommended to confirm the stents position in the pancreatic duct.
objectivesThe aim of the present study was to investigate the feasibility of prophylactic pancreatic stent detection by transabdominal ultrasonography, to reduce the burden of X-ray imaging, which is currently the golden standard.
methodsAll patients who received a pancreatic stent for PEP prophylaxis were included in the present prospective trial. First, stent position was determined by transabdominal ultrasonography. Afterwards, it was verified by X-ray imaging. Retained stents were removed by esophagogastroduodenoscopy. Dislocated stents needed no further intervention.
resultsFourty-one patients were enrolled in this study. All prophylactic pancreatic stents were straight 6 cm long 5 Fr stents with external flap. All stents were removed between day 1 and 10 (median: 3 days) in all cases. In 34 of 41 cases (83.0%), the pancreatic stent was still in place on the day of examination. Twenty-nine of 34 (85.3%) stents were detected correctly by transabdominal ultrasonography. Overlying gas prevented visualization of the pancreas in 3/41 (7.3%) cases. Sensitivity of sonographic detection of the stent was 93.5% (29/31). Six of seven stents were determined correctly as dislocated by ultrasonography. Here, specificity was 85.7%. A positive predictive value of 96.7% (29/30) was examined. The negative predictive value was 75.0% (6/8).
conclusionTransabdominal ultrasonography detects the majority of prophylactic pancreatic stents. Thereby, it helps to identify patients with an indication for endoscopy sufficiently. X-ray imaging could subsequently be omitted in about 70% of examinations, reducing the radiation exposure for the patient and the endoscopy staff.
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