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Review
. 2018 Sep-Oct;31(5):535-540.
doi: 10.20524/aog.2018.0287. Epub 2018 Jun 26.

Current uses and outcomes of lumen-apposing metal stents

Alessandro Mussetto  1 , Alessandro Fugazza  2 , Lorenzo Fuccio  3 , Omero Triossi  1 , Alessandro Repici  2 , Andrea Anderloni  2
Affiliations
Review

Current uses and outcomes of lumen-apposing metal stents

Alessandro Mussetto et al. Ann Gastroenterol. 2018 Sep-Oct.

Abstract

The lumen-apposing metal stent (LAMS) is one of the revolutionary devices recently developed for gastrointestinal endoscopy. This device has a saddle-shaped design and large lumen. It was originally designed for drainage of transmural pancreatic fluid collection and in the last few years it has been used extensively for that indication. More recently, other in- and off-label indications have been proposed. Several types of LAMS are available, with or without an electrocautery-enhanced delivery system. In the current review we discuss the state of the art with regard to LAMS and their indications, usage, and outcomes.

Keywords: Lumen-apposing metal stents; endoscopic ultrasound-guided biliary drainage; endoscopic ultrasound-guided gastroenterostomy; pancreatic fluid collections.

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Conflict of interest statement

Conflict of Interest: None

Figures

Figure 1
Figure 1
Examples of lumen-apposing metal stents. (A) HOT AXIOS stent (Boston Scientific), (B) Nagi stent (Taewoong Medical Co. Ltd.). Adapted from Boston Scientific and Taewoong Medical Co. Ltd.
Figure 2
Figure 2
Endoscopic ultrasound image (7.5 MHz) of a large pancreatic fluid collection with solid and liquid contents. HOT AXIOS stent (Boston Scientific Corp.) on its delivery catheter before deployment
Figure 3
Figure 3
Lumen stent immediately after deployment
Figure 4
Figure 4
Endoscopic ultrasound image (7.5 MHz) of drainage, performed from the duodenal bulb directly with the HOT AXIOS device (distal flange opened inside the gallbladder)
Figure 5
Figure 5
Endoscopic image showing pus draining through the stent from the gallbladder
See this image and copyright information in PMC

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