ArticleLasers in medical science2021
The use of a 532-nm laser fitted with a balloon and a cylindrical light diffuser to treat benign biliary stricture: a pilot study.
Article in Lasers in medical science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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Who cites it
4 citing papers in PubMed, 12 citations in OpenAlex.
- Quantitative investigations on light emission profiles for interstitial laser treatment.Biomedical optics express · 2024Article
- Feasibility Study on Endoscopic Balloon-Assisted Laser Treatment (EBLT) of Gastroesophageal Reflux Disease (GERD) in In Vivo Porcine Model.Biomedicines · 2023Article
- [Large Animal Models in Pancreas and Biliary Disease].The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chi · 2021Review
- Role of Endoscopy in Primary Sclerosing Cholangitis.Clinical endoscopy · 2021Review
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
Abstract
Endoscopic management of benign biliary stricture (BBS) remains challenging. Stenting is currently used for BBS management, but refractory BBS remains problematic. The aim of this study was to assess the safety and feasibility of a dilation balloon-equipped cylindrical light diffuser for BBS in a large animal model. A total of seven mini-pigs were used in the current study. Laser settings were chosen based on the findings of a previous animal study. Five animals were used in a preliminary study to establish process conditions. BBSs were created in the common bile ducts of the other two animals by intraductal radiofrequency ablation (RFA) via endoscopic retrograde cholangiography (ERC). At 4 weeks post-RFA, laser ablation was performed using a customized balloon-equipped cylindrical diffuser at 10 W for 10 s while maintaining balloon inflation for 10 s at 5 atm. A follow-up ERC was performed at 4 weeks post-laser ablation and the animals were sacrificed for histologic evaluation. BBS was observed in all animals by ERC at 4 weeks post-RFA. The mean bile duct stricture diameter in the two animals as determined by ERC was 0.8 mm. Laser ablations were performed without technical difficulty and no adverse event was encountered. At 4 weeks post-laser ablation, mean biliary stricture diameter had dilated to 1.6 mm on cholangiographic finding. On histologic examination, inflammatory cell infiltration in lamina propria and dense collagen deposition were observed, but there was no evidence of bile duct perforation. The devised balloon-equipped cylindrical laser light diffuser appears to be safe and feasible for the treatment of BBS. However, further studies and modifications are required before it can be applied clinically as a monotherapy.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.