Fig. 1. Commercially available electrocautery-enhanced lumen-apposing metal stents. (A) Hot AXIOS (Boston Scientific Corporation). (B) Niti-S Hot SPAXUS (Taewoong Medical).

Fig. 2. A case of EUS-guided walled-off necrosis treated using a lumen-apposing metal stent (15 mm, 1 cm, Hot AXIOS; Boston Scientific Corporation). (A) A large walled-off necrosis is noted around the pancreas. (B). A sonographic view of stent deployment. (C) An endoscopic view of the lumen-apposing metal stent in the stomach. (D) An X-ray view of the stent.

Fig. 3. A case of EUS-guided hepatico-gastrostomy treated using a hybrid self-expandable metal stent (10 mm, 8 cm, Giobor; Taewoong Niti-S Biliary Covered Stent). (A) Dilated bile ducts are noted in a patient with cholangiocarcinoma. (B, C) A process of stent deployment. (D) An X-ray view of the stent (arrow).

Fig. 4. A case of EUS-guided gallbladder drainage treated using a lumen-apposing metal stent (10 mm, 2 cm, Hot AXIOS; Boston Scientific Corporation). (A) Acute cholecystitis is noted on computed tomography. (B) A sonographic view of the stent deployment. (C) An endoscopic view of the lumen-apposing metal stent in the duodenum. (D) An X-ray view of the stent (circle).

Fig. 5. Newly developed self-expandable metal stents for endoscopic ultrasound-guided interventions. (A) Tornado stent (S&G Biotech Inc.). (B) Spring Stopper Stent (Taewoong Medical).