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Surgical gastrojejunostomy (GJ), which has been the standard palliative treatment for malignant gastric outlet obstruction (MGOO), is associated with good functional outcome and the long-term relief of symptoms. Endoscopic placement of a metal stent for MGOO treatment has been gaining popularity as an alternative to surgical GJ because of its high technical success rates and less invasiveness. Interestingly, several investigators have attempted endoscopic GJ as ‘endoscopic bypass’ for longer efficacy while maintaining a less invasive procedure.1 We previously reported on the feasibility and safety of EUS-guided GJ (EUS-GJ) using a lumen-apposing metal stent (LAMS)2 ,3 and a special double-balloon enteric tube in an animal model and a pilot clinical study.3 Herein, we describe the first prospective clinical study of EUS-guided double-balloon-occluded gastrojejunostomy bypass (EPASS) using a LAMS (figure 1). We performed EPASS in 20 patients with MGOO. The double-balloon tube (figure 2) was correctly inserted into the jejunum across from the stomach in all cases. The technical success rate of stent placement was 90%.
In more detail
EPASS was performed in 20 patients with MGOO between March 2014 and March 2015 (10 male) (supplementary tables 1 and 2). The median intubation time of the double-balloon tube insertion was 10.5 min (range 6–28 min). The technical success rate of stent placement was 90% (18/20) (figure 3 and supplementary table 3). The median intubation time from the double-balloon tube intubation to stent placement was 25.5 min (range 10–39 min). In the two failed cases, we recognised the maldeployment of the distal flange immediately after deployment of the proximal flange by the presence of pneumoperitonium on fluoroscopy and endoscopic visualisation of the abdominal cavity through the LAMS. Post-treatment gastric outlet obstruction …