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  • Title: Single-step versus multi-step transmural drainage of pancreatic pseudocysts: the use of cystostome is effective and timesaving.
    Author: Heinzow HS, Meister T, Pfromm B, Lenze F, Domschke W, Ullerich H.
    Journal: Scand J Gastroenterol; 2011 Jul; 46(7-8):1004-13. PubMed ID: 21492051.
    Abstract:
    BACKGROUND AND AIMS: Pancreatic pseudocysts are a major complication of chronic and acute pancreatitis 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 patients with symptomatic pancreatic pseudocysts of >4 cm size. DESIGN: Retrospective study at an academic tertiary referral center. PATIENTS AND METHODS: A total of 38 consecutive patients comprising 42 interventions were studied: 16 patients with pancreatic pseudocysts (18 interventions) had undergone single-step EUS-guided transmural cystostome drainage between 2007 and 2010. Results were compared with a cohort of 22 patients who had submitted to multi-step EUS-guided transmural drainage of pancreatic pseudocysts 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 patients with symptomatic pancreatic pseudocysts as it is effective and timesaving.
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