Lumen-apposing metal stent acted as an interim role in walled-off necrosis drainage

Recently, Bang et al1 conducted the first randomised trial on lumen-apposing metal stents (LAMS) versus plastic stents for endoscopic ultrasonography (EUS)-guided drainage of walled-off necrosis (WON), which provided significant information for the clinical application of LAMS. We agree with Bang et al1 that the wider diameter of LAMS facilitates more rapid drainage of necrotic contents leading to faster WON resolution, and we agree that LAMS must be removed at 3 weeks postprocedure if the WON resolved. Our endoscopy centre observed LAMS-related adverse events, including stent buried in tissue2 and cardia occlusion,3 at more than 3 weeks postprocedure.

Bang et al1 stated that disconnected pancreatic duct syndrome (DPDS) is an important but often overlooked symptom of EUS. Recently, the consensus guideline on interventional EUS made by the Asian EUS group pointed out that the risk of pseudocyst recurrence increases in patients with...

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