Search results for "biliary drainage"
showing 3 items of 3 documents
Endoskopische ablative Verfahren bei Gallengangstumoren – Effektivität der photodynamischen Therapie und der Radiofrequenzablation
2015
Nur etwa 20–30 % der Patienten mit hilarem cholangiozellularen Karzinom (CCC) konnen bei Diagnosestellung kurativ operiert werden, da erst bei fortgeschrittenem Tumorstadium Symptome auftreten 3 . Daher konnen den meisten Patienten mit dieser Tumorentitat lediglich palliative Therapiekonzepte angeboten werden. Die Effektivitat der photodynamischen Therapie (PDT) wurde in 2 kontrolliert randomisierten sowie in weiteren kontrollierten Studien nachgewiesen. Eine endoskopische Drainage in Kombination mit einer intraluminalen PDT stellte bislang das beste palliative Therapiekonzept dar [1, 3]. Die Radiofrequenzablation (RFA) ist ein neues endoskopisches Verfahren im Rahmen des palliativen Therap…
Impact of biliary stents on the diagnostic accuracy of EUS-guided fine-needle biopsy of solid pancreatic head lesions: A multicenter study
2021
Background and Objectives: There is no clear evidence of a negative impact of biliary stents on the diagnostic yield of EUS-guided fine-needle biopsy (EUS-FNB) for diagnosing pancreatic head lesions. We aimed to evaluate the association between the presence of biliary stents and the diagnostic accuracy of EUS-FNB. Materials and Methods: A multicenter retrospective study including all jaundiced patients secondary to pancreatic head masses was performed. Patients were divided into two groups according to the presence of a biliary stent placed before EUS-FNB. Pathological results were classified according to the Papanicolaou classification and compared against the final diagnosis. Diagnostic m…
Perkutan transhepatische Feinkaliber-Cholangioskopie
1988
Percutaneous transhepatic fine calibre cholangioscopy is described. A specially developed transparent instrument is used, which makes it unnecessary to have a steerable endoscope; visualisation of the biliary tree is of diagnostic value for assessing biliary stenoses due to tumours (choice of biopsy site, extent of intraductal radiation therapy) and for the assessment of anastomoses between the biliary system and the gut (condition of the mucosa, stenoses). In the presence of percutaneous biliary drainage, the method has little utility. Extension of the method for treating intraductal stones may be possible if in future a useful lumen can be added to the fine endoscope.