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Guide stents

Jung Hee Lee, Ung Kim
No abstract text is available yet for this article.
November 2018: Korean Circulation Journal
Dong Hui Cho, Seok Jung Jo, Jae Hoon Lee, Tae Jun Song, Do Hyun Park, Sung Koo Lee, Myung-Hwan Kim, Sang Soo Lee
BACKGROUND AND AIMS: Endoscopic ultrasound-guided gallbladder drainage (EUS-GBD) is increasingly accepted as an effective treatment option in patients who require drainage for acute cholecystitis. A newly designed lumen-apposing metal stent (LAMS) has been introduced recently in this procedure. In this study, we evaluated the feasibility and safety of the newly designed LAMS in patients with acute cholecystitis who were unsuitable for cholecystectomy. METHODS: Between Mar 2017 and Oct 2017, 22 patients with acute cholecystitis who were unsuitable for cholecystectomy underwent EUS-GBD with the newly designed LAMS...
October 17, 2018: Surgical Endoscopy
Morteza Safi, Mohammad Ali Mehrabi, Saeed Alipour Parsa, Isa Khaheshi, Mohammadreza Naderian
BACKGROUND AND AIM: Applying fractional flow reserve (FFR) recently helped to assess borderline coronary defects and also facilitates assessment of these lesions. The present study aimed to assess cost-effectiveness of FFR in detection of these borderline lesions. METHODS: This cross-sectional study was conducted on140 consecutive patients with 219 diseased arteries who underwent coronary angiography and suffered intermediate coronary lesions. RESULTS: Of 18 patients who candidate for CABG before FFR, only one patient underwent CABG after determining FFR (P-value<0...
October 8, 2018: Acta Bio-medica: Atenei Parmensis
Xicheng Zhang, Yuanhu Jing, Hongfei Sang, Zhaolei Chen, Yuan Sun, Xiaoqiang Li
Stent implantation is the common treatment method for iliac vein (IV) occlusion. IV stents usually enter into the inferior vena cava (IVC) to partially or completely cover the contralateral IV, but it is still uncertain whether this can increase the risk of thrombosis in the contralateral IV. The purpose of this study was to investigate the effect of the stent position on the bilateral IVs patency. A total of 261 patients with symptomatic IV lesions, including 177 patients with non-thrombotic iliac vein lesions (NIVLs) and 84 patients with thrombotic iliac vein lesions (TIVLs), were implanted with IV stents between July 2007 and June 2017...
October 16, 2018: Journal of Thrombosis and Thrombolysis
Takeshi Ogura, Atsushi Okuda, Akira Miyano, Miyuki Imanishi, Nobu Nishioka, Masanori Yamada, Tadahiro Yamda, Rieko Kamiyama, Daisuke Masuda, Kazuhide Higuchi
BACKGROUND: Gastric cancer is sometimes complicated by obstructive jaundice. However, ERCP may be challenging in patients who have advanced gastric cancer, or recurrent gastric cancer after surgical resection that is complicated by obstructive jaundice. In such cases, percutaneous transhepatic biliary drainage (PTBD) is considered. Recently, EUS-guided biliary drainage (EUS-BD) has been developed. We conducted a retrospective study to compare the efficacy of EUS-BD and PTBD in patients with obstructive jaundice due to gastric cancer...
September 22, 2018: Digestive and Liver Disease
Kohsuke Kakumoto, Kei Harada, Yukihiro Sankoda, Syunsuke Taniguchi, Kouzou Fukuyama
Carotid artery stenting (CAS) with proximal protection can expose occlusion intolerance (OI) due to ipsilateral cerebral hemisphere hypoperfusion. Near-infrared spectroscopy (NIRS) cerebral oximetry can monitor regional cerebral oxygenation (rSO2 ) in the frontal lobes, and is used during CAS to predict cerebral blood flow insufficiency. The aim of this study was to evaluate rSO2 as a predictor of OI during CAS. We retrospectively examined 146 patients who underwent CAS with proximal protection. An INVOS® NIRS oximeter was used for rSO2 measurement, which was compared with stump pressure (SP) measured by a guiding catheter during occlusion of the common carotid artery (CCA) and external carotid artery...
October 9, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Qinghai Chen, Peng Jin, Xiaoyan Ji, Haiwei Du, Junhua Lu
Selective bile duct cannulation is the prerequisite for all endoscopic biliary therapeutic interventions, but this cannot always be achieved easily. Despite advances and new developments in endoscopic accessories, selective biliary access fails in 5%-15% of cases, even in expert high volume centers. Various techniques - such as double-guidewire induced cannulation, pre-cut papillotomy or transpancreatic sphincterotomy with or without placement of a pancreatic stent - have been used to improve cannulation success rates...
October 9, 2018: Clinics and Research in Hepatology and Gastroenterology
Takahiro Nakajima, Ichiro Yoshino
Recent advance in bronchology and interventional pulmonology contributes to improve the quality of patient care in thoracic surgery. Narrow band imaging (NBI) combined with high definition bronchoscopy clearly visualize the aberrant tumor vessels on the mucosa of endobronchial malignancy. It helps the preoperative surgical planning for the clear bronchial margin during the surgery. The index of hemoglobin (IHb) show the approximate amount of hemoglobin within the mucosal surface and we use the IHb for the evaluation of local circulation of bronchial anastomosis after bronchoplasty...
September 2018: Kyobu Geka. the Japanese Journal of Thoracic Surgery
Loïc Griviau, Olivier Chevallier, Clément Marcelin, Motoki Nakai, Lorenzo Pescatori, Christophe Galland, Marco Midulla, Nicolas Falvo, Romaric Loffroy
Background: Femoral pseudoaneurysm (PA) is a frequent complication of arterial access for endovascular procedures. Surgery has traditionally been considered as the gold standard of therapy. We aimed to report our experience of percutaneous ultrasound (US)-guided balloon-assisted embolization with cyanoacrylate glue for the treatment of iatrogenic femoral PAs. Methods: Retrospective two-center study of patients with femoral iatrogenic PAs treated by N-butyl cyanoacrylate-methacryloxy sulfolane (NBCA-MS) Glubran® 2 glue embolization between July 2013 and November 2017...
September 2018: Quantitative Imaging in Medicine and Surgery
Yusuke Watanabe, Kenichi Sakakura, Yousuke Taniguchi, Kei Yamamoto, Hiroshi Wada, Shin-Ichi Momomura, Hideo Fujita
Slow flow is a serious complication in percutaneous coronary intervention (PCI) and is associated with poor clinical outcomes. Our previous study revealed that the ratio of stent diameter to vessel diameter was the determinant of slow flow in intravascular ultrasound (IVUS)-guided PCI to the culprit lesion of ST elevation myocardial infarction (STEMI). The purpose of this study was to verify whether the ratio of stent diameter to vessel diameter is the determinant of slow flow in IVUS-guided PCI to the culprit lesion of non-STEMI (NSTEMI)...
October 10, 2018: International Heart Journal
Akira Shikuma, Jun Shiraishi, Nariko Koshi, Yuki Matsubara, Tetsuro Nishimura, Keisuke Shoji, Daisuke Ito, Masayoshi Kimura, Eigo Kishita, Yusuke Nakagawa, Masayuki Hyogo, Takahisa Sawada
A 77-year-old man was referred to our hospital for angina on effort. Coronary angiography and computed tomography demonstrated a single coronary artery arising from the right sinus of Valsalva. The left circumflex coronary artery (LCx) anomalously deriving near from the ostium of right coronary artery exhibited severe stenosis in the bifurcation of the obtuse marginal branch. Although the bifurcation lesion still remains a therapeutic challenge for guide extension catheter (GEC)-based percutaneous coronary intervention, under the guidance of intravascular ultrasound imaging, we successfully implanted an everolimus-eluting stent at the bifurcated LCx lesion and performed kissing balloon inflation using 0...
October 10, 2018: International Heart Journal
Hui-Yun Zhu, Pei Xie, Ying-Xiao Song, Zhao-Shen Li, Zhen-Dong Jin, Yi-Qi Du
BACKGROUND: Endoscopic ultrasonography (EUS)-guided drainage has become the first-line therapy for late peri-pancreatic fluid collection (PFC). Double pigtail plastic stents (DPPS) and lumen-apposing metal stents (LAMS) are commonly used for PFC drainage. Recently, a multi-institutional consensus on PFC drainage has recommended that LAMS should be the standard care for patients with walled-off necrosis (WON). However, given the poor quality of evidence, we aim to perform a large-scale randomized controlled trial to determine whether LAMS is superior to DPPS for WON drainage...
October 11, 2018: Trials
Dennis Yang, Yaseen B Perbtani, Lazarus K Mramba, Tossapol Kerdsirichairat, Anoop Prabhu, Amar Manvar, Sammy Ho, Davindebir Pannu, Rajesh N Keswani, Daniel S Strand, Andrew Y Wang, Eduardo Quintero, Jonathan M Buscaglia, Thiruvengadam Muniraj, Harry R Aslanian, Peter V Draganov, Ali S Siddiqui
Background and study aims  Endoscopic drainage with dedicated lumen-apposing metal stents (LAMS) is routinely performed for symptomatic pancreatic fluid collections (PFCs), walled-off necrosis (WON) and pseudocyst (PP). There has been increasing concern regarding delayed adverse events associated with the indwelling LAMS.  Patients and methods  Multicenter retrospective analysis of consecutive patients who underwent endoscopic ultrasound (EUS)-guided LAMS placement for PFC from January 2010 to May 2017...
October 2018: Endoscopy International Open
Masahito Munakata, Yohei Numasawa, Shiro Ishikawa, Takashi Koyama
Percutaneous coronary intervention for left main trifurcation disease is challenging. Although side branch protection techniques such as the jailed balloon technique and jailed Corsair technique are the established methods for treatment of coronary bifurcation lesions, little is known regarding the application and feasibility of these techniques for left main trifurcation disease. We herein describe a 72-year-old man with angina pectoris who was successfully treated with percutaneous coronary stent implantation for a left main trifurcation lesion...
2018: Case Reports in Cardiology
Yoshiaki Katada, Shiro Onozawa, Shoichi Takahashi, Shigeru Suzuki
PURPOSE: To report an experimental study and clinical case using a coil packing technique that hastens occlusion of an Amplatzer Vascular Plug 1 (AVP1) in short-segment embolization of high-flow target vessels. TECHNIQUE: An experimental vascular stenosis model was made of 12-mm soft polyvinyl chloride tubing. Under continuous pulsatile flow, a 12-mm AVP1 was deployed in the 4-mm-diameter stenosis. Before detachment of the AVP1, a 2.2-F microcatheter was inserted into the AVP1 through its mesh via a 6-F delivery guiding sheath in parallel with the delivery wire...
October 10, 2018: Journal of Endovascular Therapy
Shuhei Yoshida, Isao Koshima, Ayano Sasaki, Yumio Fujioka, Shogo Nagamatsu, Kazunori Yokota, Shuji Yamashita, Mitsunobu Harima
Despite advances in supermicrosurgical techniques, the ability to anastomose vessels with a diameter of less than 0.2 mm remains limited. One of the reasons for this limitation is that the dilation methods currently available, such as inserting the tip of a microforceps into the lumen or topical application of a vasodilator such as papaverine hydrochloride or xylocaine spray, are not effective in very small vessels. To overcome this problem, we have developed a method whereby nylon monofilaments are placed inside the vessel lumen to act as a dilator...
October 9, 2018: Annals of Plastic Surgery
Gregory A Sgueglia, Gaetano Gioffrè, Antonella De Santis, Fabiana Piccioni, Francesco Summaria, Angela Di Giorgio, Fabrizio D'Errico, Achille Gaspardone
OBJECTIVES: To assess the efficacy and safety of transradial 5 French percutaneous treatment of coronary bifurcations using conventional devices. BACKGROUND: Radial artery is smaller than femoral artery, and its size may potentially limit transradial intervention, especially when coronary anatomy is not known. METHODS: Patients with bifurcations lesions undergoing transradial 5 French ad hoc revascularization were treated according to provisional side branch (SB) stenting followed by the POT-SB dilation-final POT sequence...
October 8, 2018: Catheterization and Cardiovascular Interventions
Shunsuke Omoto, Mamoru Takenaka, Masatoshi Kudo
Endoscopic ultrasonography guided pancreatic duct drainage (EUS-PD) has been reported as an alternative to surgery in cases where trans-papillary access to the main pancreatic duct (MPD) is not feasible. However, this technique has been reported as a challenging procedure in clinical practice. (1-5). A 64-year-old man presented with repeat pancreatitis caused by a post endoscopic sphincterotomy scar and was admitted to our hospital for pancreatic duct drainage. This article is protected by copyright. All rights reserved...
October 8, 2018: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
Mohamed F Attia, Beau R Brummel, Timothy R Lex, Brooke A Van Horn, Daniel C Whitehead, Frank Alexis
Several synthetic materials exhibiting contrast imaging properties have become vital to the field of biomedical imaging. Polymeric biomaterials and metals are commonly used imaging agents and can assist in the monitoring of therapy response, migration, degradation, changes in morphology, defects, and image-guided surgery. In comparison to metals, most bio and synthetic polymers lack inherent imaging properties. Polymeric biomaterials, specifically polyesters, have gained a considerable amount of attention due to their unique properties including biocompatibility, biodegradation, facile synthesis, and modification capability...
October 8, 2018: Advanced Healthcare Materials
Giuseppe Gargiulo, Athanasios Patialiakas, Raffaele Piccolo, Attila Thury, Salvatore Colangelo, Gianluca Campo, Matteo Tebaldi, Imre Ungi, Stefano Tondi, Marco Roffi, Alberto Menozzi, Nicoletta de Cesare, Roberto Garbo, Emanuele Meliga, Luca Testa, Henrique Mesquita Gabriel, Marco Ferlini, Francesco Liistro, Antonio Dellavalle, Pascal Vranckx, Carlo Briguori, Stephan Windecker, Marco Valgimigli
BACKGROUND: The impact of coronary artery disease (CAD) extension/complexity on outcomes and on the comparative benefits/risks of zotarolimus-eluting stent (ZES) versus bare-metal stents (BMS) remains unclear in patients at high risk of bleeding or thrombosis or at low restenosis risk. METHODS: We performed a post-hoc analysis of the ZEUS trial. The impact of coronary anatomic complexity measured by the SYNTAX score on the differences in outcomes following ZES and BMS was assessed at 1 year...
October 2, 2018: International Journal of Cardiology
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