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EUS-guided transluminal drainage using lumen-apposing metal stents with or without coaxial plastic stents for treatment of walled-off necrotizing pancreatitis: a prospective bicentric randomized controlled trial
Lumen-apposing metal stents (LAMSs) have proven to be effective for drainage of pancreatic walled-off necrosis (WON), although associated adverse events (AEs) have been reported. Anchoring coaxial double-pigtail plastic stents (DPSs) within LAMSs have been proposed to prevent LAMS-related AEs but have not been assessed in prospective studies. We aimed to evaluate the utility of such measures with a randomized controlled trial.EUS-guided enterocolostomy with lumen-apposing metal stent for palliation of malignant small-bowel obstruction (with video)
Interventions for malignant small-bowel obstruction (SBO) may be limited by extent of peritoneal disease, rendering surgical or traditional endoscopic methods (ie, luminal stenting or decompressive gastrostomy) unfeasible. We demonstrated the novel use of EUS-guided lumen-apposing metal stent placement for enterocolonic bypass in patients with malignant SBO who were deemed high risk for surgery.Novel classification system for walled-off necrosis: a step toward standardized nomenclature and risk-stratification framework
The optimal therapeutic approach for walled-off necrosis (WON) is not fully understood, given the lack of a validated classification system. We propose a novel and robust classification system based on radiologic and clinical factors to standardize the nomenclature, provide a framework to guide comparative effectiveness trials, and inform the optimal WON interventional approach.EUS-directed transgastric interventions in Roux-en-Y gastric bypass anatomy: a multicenter experience
Placement of a lumen-apposing metal stent (LAMS) between the gastric pouch and the excluded stomach allows for EUS-guided transgastric interventions (EDGIs) in patients with Roux-en-Y gastric bypass (RYGB). Although EUS-guided transgastric ERCP (EDGE) outcomes have been reported, data are scant on other endoscopic interventions. We aimed to evaluate the outcomes and safety of EDGIs.Predicting success of direct endoscopic necrosectomy with lumen-apposing metal stents for pancreatic walled-off necrosis
Direct endoscopic necrosectomy (DEN) with lumen-apposing metal stents (LAMSs) is increasingly used in the management of pancreatic walled-off necrosis (WON). However, it still remains unknown which patients will fail to respond to DEN with LAMSs and require additional surgical intervention. Therefore, the aim of our study was to explore predictors of successful DEN with LAMSs for pancreatic WON.Visceral artery pseudoaneurysms in necrotizing pancreatitis: risk of early bleeding with lumen-apposing metal stents
Visceral artery pseudoaneurysm (PSA) in necrotizing pancreatitis (NP) is associated with significant morbidity and mortality. This study aimed to evaluate the incidence, clinical presentation, management, and outcomes of PSA in NP.Safety and efficacy of a novel resection system for direct endoscopic necrosectomy of walled-off pancreas necrosis: a prospective, international, multicenter trial
Direct endoscopic necrosectomy (DEN) of walled-off pancreatic necrosis (WOPN) lacks dedicated instruments and requires repetitive and cumbersome procedures. This study evaluated the safety and efficacy of a new powered endoscopic debridement (PED) system designed to simultaneously resect and remove solid debris within WOPN.Safety and efficacy of a novel electrocautery-enhanced lumen-apposing metal stent in interventional EUS procedures (with video)
Electrocautery-tip lumen-apposing metal stents (EC-LAMSs) have extended the indications of therapeutic EUS. We aimed to retrospectively evaluate safety and technical and clinical success of a newly developed EC-LAMS, the Hot-Spaxus (Taewoong Medical Co, Gimpo, Korea), for various EUS-guided procedures.Classification, outcomes, and management of misdeployed stents during EUS-guided gastroenterostomy
Stent misdeployment (SM) has hindered the dissemination of EUS-guided gastroenterostomy (EUS-GE) for gastric outlet obstruction (GOO) management. We aimed to provide a classification system for SM during EUS-GE and study clinical outcomes and management accordingly.Maximizing success in single-session EUS-directed transgastric ERCP: a retrospective cohort study to identify predictive factors of stent migration
EUS-directed transgastric ERCP (the EDGE procedure) is a simplified method of performing ERCP in Roux-en-Y gastric bypass patients. The EDGE procedure involves placement of a lumen-apposing metal stent (LAMS) into the excluded stomach to serve as a conduit for passage of the duodenoscope for pancreatobiliary intervention. Originally a multistep process, urgent indications for ERCP have led to the development of single-session EDGE (SS-EDGE) with LAMS placement and ERCP performed in the same session.EUS-guided gallbladder drainage versus laparoscopic cholecystectomy for acute cholecystitis: a propensity score analysis with 1-year follow-up data
EUS-guided gallbladder drainage (EUS-GBD) is a safe alternative to percutaneous cholecystostomy (PT-GBD) for acute cholecystitis. How the procedure compares with laparoscopic cholecystectomy (LC) is uncertain. The aim of the current study is to compare the outcomes of EUS-GBD with LC for acute cholecystitis.EUS-directed transenteric ERCP in non–Roux-en-Y gastric bypass surgical anatomy patients (with video)
Enteroscopy-assisted ERCP is challenging in patients with surgically altered upper GI anatomy. This study evaluated a novel procedure, EUS-directed transenteric ERCP (EDEE), in the de novo creation of an enteroenteric anastomosis for the performance of ERCP in non–Roux-en Y gastric bypass (RYGB) patients.Acute and early EUS-guided transmural drainage of symptomatic postoperative fluid collections
EUS-guided postoperative drainage (EUS-POD) of postoperative fluid collections (POFCs) is typically delayed until a thick wall has formed to optimize safety. Thus, percutaneous drainage is the mainstay of early POFC management. The primary aim of this study was to compare technical and clinical success and adverse event (AE) rate between early (0-30 days postoperative) compared with delayed (>30 days) EUS-POD. The secondary aim was to determine predictors for clinical success and AE rate associated with early compared with delayed EUS-POD.EUS-guided gastroenteric anastomosis as a bridge to definitive treatment in benign gastric outlet obstruction
Benign gastric outlet obstruction (GOO) has typically been managed surgically. However, many patients are poor operative candidates because of comorbidities. EUS-guided gastroenterostomy (EUS-GE) using lumen-apposing metal stents (LAMSs) has previously demonstrated efficacy as a definitive treatment for benign and malignant GOO; however, limited data exist on use as a bridge to resolution of the obstruction in an attempt to avoid or delay definitive surgery.Comparison of the effectiveness and safety of lumen-apposing metal stents and anti-migrating tubular self-expandable metal stents for EUS-guided gallbladder drainage in high surgical risk patients with acute cholecystitis
Endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) using an anti-migrating tubular self-expandable metal stent (ATSEMS) is performed in high surgical risk patients with acute cholecystitis. The newly introduced lumen-apposing metal stent (LAMS) is expected to reduce the risk of tubular self-expandable metal stent–related adverse events such as stent migration, but no comparative studies have been carried out between LAMSs and ATSEMSs for EUS-GBD.Cost-effectiveness analysis comparing lumen-apposing metal stents with plastic stents in the management of pancreatic walled-off necrosis
EUS-guided transmural drainage is effective in the management of pancreatic walled-off necrosis (WON). A lumen-apposing metal stent (LAMS) has recently been developed specifically for the drainage of pancreatic fluid collections that shows promising results. However, no cost-effectiveness data have been published in comparison with endoscopic drainage with traditional plastic stents (PSs). Our aim here was to compare the cost-effectiveness of LAMSs to PSs in the management of WON.EUS-guided gallbladder drainage in patients with acute cholecystitis and high surgical risk using an electrocautery-enhanced lumen-apposing metal stent device
In high-risk surgical patients, the treatment of choice of acute cholecystitis is percutaneous transhepatic gallbladder drainage (PTGBD). Recently, a novel endoscopic device containing a lumen-apposing metal stent with an electrocautery (ECE-LAMS) on the tip has been developed.
