Prolonged patency of fully covered self-expandable metal stents with an externally anchored plastic stent in distal malignant biliary obstruction. 2023

Jung Won Chun, and Sang Myung Woo, and Mira Han, and Min Woo Lee, and Jin Ho Choi, and In Rae Cho, and Woo Hyun Paik, and Woo Jin Lee, and Ji Kon Ryu, and Yong-Tae Kim, and Sang Hyub Lee
Center for Liver and Pancreatobiliary Cancer, National Cancer Center, Goyang, South Korea.

BACKGROUND : Fully covered self-expandable metal stents (FCSEMSs) are widely used for endoscopic treatment of distal malignant biliary obstruction (dMBO). We aimed to assess the efficacy of anchoring an external plastic stent to an FCSEMS in dMBO. METHODS : A multicenter retrospective cohort study was performed in patients with dMBO to compare stent patency between FCSEMSs and FCSEMSs with an externally anchored plastic stent (EPS). For external anchoring, a 7-Fr double-pigtail plastic stent (DPPS) was placed first in the bile duct, then an FCSEMS was deployed side-by-side. RESULTS : Among a total of 185 patients, 65 had an FCSEMS alone and 120 had an FCSEMS with an EPS. The median stent patency was significantly longer in the FCSEMS with an EPS group than in the FCSEMS only group (342 vs. 240 days; P = 0.04). The rate of stent migration was significantly lower in the FCSEMS with an EPS group than in the FCSEMS only group (10.8 % vs. 27.7 %; P = 0.01). There were no significant differences in the rates of stent occlusion and adverse events between the two groups. CONCLUSIONS : A novel and simple technique of anchoring an external plastic stent may decrease the risk of FCSEMS migration and prolong stent patency, without significantly increasing the adverse events rate in dMBO.

UI MeSH Term Description Entries
D010969 Plastics Polymeric materials (usually organic) of large molecular weight which can be shaped by flow. Plastic usually refers to the final product with fillers, plasticizers, pigments, and stabilizers included (versus the resin, the homogeneous polymeric starting material). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Plastic
D002760 Cholangiopancreatography, Endoscopic Retrograde Fiberoptic endoscopy designed for duodenal observation and cannulation of VATER'S AMPULLA, in order to visualize the pancreatic and biliary duct system by retrograde injection of contrast media. Endoscopic (Vater) papillotomy (SPHINCTEROTOMY, ENDOSCOPIC) may be performed during this procedure. ERCP,Endoscopic Retrograde Cholangiopancreatography,Retrograde Cholangiopancreatography, Endoscopic,Cholangiopancreatographies, Endoscopic Retrograde,Endoscopic Retrograde Cholangiopancreatographies,Retrograde Cholangiopancreatographies, Endoscopic
D002779 Cholestasis Impairment of bile flow due to obstruction in small bile ducts (INTRAHEPATIC CHOLESTASIS) or obstruction in large bile ducts (EXTRAHEPATIC CHOLESTASIS). Bile Duct Obstruction,Biliary Stasis,Bile Duct Obstructions,Biliary Stases,Cholestases,Duct Obstruction, Bile,Duct Obstructions, Bile,Obstruction, Bile Duct,Obstructions, Bile Duct,Stases, Biliary,Stasis, Biliary
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000069322 Self Expandable Metallic Stents Cylindrical metallic tubes that are inserted to hold open a structure in order to treat vascular, bile duct, esophageal and other tubular organ constrictions. Self Expandable Metal Stent,Self Expandable Metal Stents,Self Expandable Metallic Stent
D012189 Retrospective Studies Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons. Retrospective Study,Studies, Retrospective,Study, Retrospective
D015607 Stents Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting. Stent
D016896 Treatment Outcome Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series. Rehabilitation Outcome,Treatment Effectiveness,Clinical Effectiveness,Clinical Efficacy,Patient-Relevant Outcome,Treatment Efficacy,Effectiveness, Clinical,Effectiveness, Treatment,Efficacy, Clinical,Efficacy, Treatment,Outcome, Patient-Relevant,Outcome, Rehabilitation,Outcome, Treatment,Outcomes, Patient-Relevant,Patient Relevant Outcome,Patient-Relevant Outcomes

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