BACKGROUND AND AIMS: @entity9007 are a major complication of chronic and acute @entity788 and often require endoscopic intervention. Endoscopic single-step and multi-step transmural drainage techniques have been reported in the literature. The aim of this study was to evaluate and compare technical results and clinical outcome rates of the single-step versus multi-step endoscopic ultrasonography (EUS)-guided endoscopic transmural drainage in @entity1 with symptomatic @entity9007 of >4 cm size. DESIGN: Retrospective study at an academic tertiary referral center. @entity1 AND METHODS: A total of 38 consecutive @entity1 comprising 42 interventions were studied: 16 @entity1 with @entity9007 (18 interventions) had undergone single-step EUS-guided transmural cystostome drainage between 2007 and 2010. Results were compared with a cohort of 22 @entity1 who had submitted to multi-step EUS-guided transmural drainage of @entity9007 in 24 cases between 2005 and 2007. RESULTS: The technical success rate for using the single-step procedure was 94% compared with multi-step procedure with 83% (n.s.). Primary clinical success rate was 88% for single-step drainage and 90% for the multi-step approach (n.s.). The mean procedure time was 36    9 min in the single-step group compared with 62    12 min for the multi-step access (p < 0.001). CONCLUSIONS: The use of single-step cystostome appears useful in managing selected @entity1 with symptomatic @entity9007 as it is effective and timesaving.

Single-step versus multi-step transmural drainage of XXXX : the use of cystostome is effective and timesaving.

@entity1 :: ('9606', 'Species') :: ['patients', 'PATIENTS'] @entity788 :: ('MESH:D010190', 'Disease') :: ['pancreatitis'] @entity9007 :: ('MESH:D010192', 'Disease') :: ['Pancreatic pseudocysts', 'pancreatic pseudocysts']
@entity9007 :: (MESH:D010192,Disease) :: ['pancreatic pseudocysts']
