{"title":"Which is better for unresectable malignant hilar biliary obstruction: Side-by-side versus stent-in-stent?","authors":"I. Naitoh, Tadahisa Inoue, K. Hayashi","doi":"10.18528/GII180014","DOIUrl":"https://doi.org/10.18528/GII180014","url":null,"abstract":"Biliary drainage is required for the management of unresectable malignant hilar biliary obstruction (UMHBO), and endoscopic transpapillary drain- age is the first-line therapy because it is less invasive. Self-expandable metallic stents (SEMSs) are superior to plastic stents because they have longer stent patency and are more cost-effective. Endoscopic bilateral SEMS placement is technically challenging compared to unilateral placement. However, recent developments in devices and techniques have facilitated bilateral SEMS placement. There are two methods for bilateral hilar SEMS placement for UMHBO: side-by-side (SBS) and stent-in-stent (SIS). Sequential SBS was commonly conducted for bilateral hilar SEMS placement. In a new and thinner delivery system that was developed for SEM placement, two SEMSs could be simultaneously inserted and deployed through the working channel. This new bilateral stenting method enabled us to accomplish simultaneous SBS placement, which increased the success rate of SBS. Insertion of the guidewire and delivery of the second SEMS through the mesh of the first SEMS is challenging in SIS. Newly designed or modified SEMSs that are suitable for SIS have been developed to overcome this challenge, and these SEMSs have facilitated SIS. Uncovered SEMS has been commonly used for hilar SEMS placement, but covered SEMS (CSEMS) is another option for hilar SEMS placement, because CSEMS prevents tumor ingrowth and allows for removal of the stent for re-intervention. Therefore, CSEMS can be used for bilateral SEMS placement in SBS. There are many methods and kinds of SEMS available for bilateral SEMS placement. However, due to lack of evidence, there is no consensus on whether SBS or SIS is optimal for bilateral hilar SEMS placement. In this review, we compared various outcomes between SBS and SIS from previous studies, to clarify which method is better for bilateral SEMS placement for UMHBO.","PeriodicalId":32516,"journal":{"name":"Gastrointestinal Intervention","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47923116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Lipiodol brain embolism through right inferior phrenic artery-pulmonary vein shunt after transcatheter arterial chemoembolization","authors":"E. H. Jang, E. Kim, Woo Sun Choi, D. Gwon","doi":"10.18528/GII170003","DOIUrl":"https://doi.org/10.18528/GII170003","url":null,"abstract":"Lipiodol brain embolism is a rare complication associated with transcatheter arterial cheomoembolization (TACE). The present case describes a pa- tient with lipiodol brain embolism who presented with several symptoms, including drowsy mental state, right facial palsy, and weakness in the right upper and lower limbs. The patient’s non-enhanced computed tomography scan and magnetic resonance imaging (MRI) findings revealed multifocal lipiodol deposition and an acute infarction of the brain. A retrospective review of the angiography findings revealed a right inferior phrenic artery-pulmonary vein shunt, which was not observed during the previous TACE. Three days after TACE, the patient’s symptoms improved; however, the extent of the brain hyperintensity had widened further on the following MRI. The patient gradually recovered and was finally discharged.","PeriodicalId":32516,"journal":{"name":"Gastrointestinal Intervention","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49450669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Percutaneous placement of H-configured triple biliary and enteral stents through a single access: A solution for complex bilio-enteric obstruction","authors":"Sunghun Park, A. Park","doi":"10.18528/GII160029","DOIUrl":"https://doi.org/10.18528/GII160029","url":null,"abstract":"","PeriodicalId":32516,"journal":{"name":"Gastrointestinal Intervention","volume":"7 1","pages":"36-39"},"PeriodicalIF":0.0,"publicationDate":"2018-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44686724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nozomi Okuno, K. Hara, N. Mizuno, Takamichi Kuwahara, Hiromichi Iwaya, M. Tajika, Tsutomu Tanaka, M. Ishihara, Y. Hirayama, S. Onishi, K. Toriyama, Ayako Ito, Naosuke Kuraoka, Shimpei Matsumoto, Masahiro Obata, M. Yasuda, Y. Kurita, Hiroki Tanaka, Y. Niwa