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Guide stents

Sigrid Sandner, Philipp Angleitner, Günther Laufer, Daniel Zimpfer
This video tutorial is a guide to the application of the only currently available external stent for saphenous vein grafts, the VEST (Vascular Graft Solutions, Tel Aviv, Israel). We describe the preparation of the vein graft, selection of the appropriate VEST model, and the application procedure itself. We also present angiograms 2 years after coronary artery bypass grafting of unsupported versus VEST-supported saphenous vein grafts.
February 1, 2019: Multimedia Manual of Cardiothoracic Surgery: MMCTS
William Berkowski, Caryn E Plummer, Renata Ramos, Sarah Czerwinski, Dennis Brooks, Alex Gallagher
CASE DESCRIPTION: A yearling Thoroughbred stallion and an 8-year-old Saddlebred mare were evaluated for persistent mucoid ocular discharge. CLINICAL FINDINGS: Examination of both horses revealed copious yellow-tan mucoid ocular discharge with a negative Jones I test, absent nasal punctum, and unsuccessful anterograde nasolacrimal duct (NLD) irrigation. Clinical abnormalities were present on the right side only in one horse and bilaterally in the other. Computed tomography (CT) with contrast confirmed nasolacrimal duct atresia in both horses...
February 15, 2019: Veterinary Ophthalmology
Tapan Mehta, Shailesh Male, Coridon Quinn, David F Kallmes, Adnan H Siddiqui, Aquilla Turk, Andrew Walker Grande, Ramachandra Prasad Tummala, Bharathi Dasan Jagadeesan
INTRODUCTION: Stent retriever combined with aspiration, or the 'Solumbra technique', has recently emerged as one of the popular methods of mechanical thrombectomy (MT). However, the variations in understanding and implementation of the Solumbra technique have not been reported. METHODS: An 18 part anonymous survey questionnaire was designed to extract information regarding technical variations of MT with a focus on the Solumbra technique. The survey link was posted on the Society of Neurointerventional Surgery (SNIS) website in 'SNIS connect'...
February 13, 2019: Journal of Neurointerventional Surgery
Xiao-Fei Gao, Zhi-Mei Wang, Feng Wang, Yue Gu, Zhen Ge, Xiang-Quan Kong, Guang-Feng Zuo, Jun-Jie Zhang, Shao-Liang Chen
Intravascular ultrasound (IVUS) guidance is not routinely performed in real-word clinical practice partly because the benefit of IVUS guidance is not well established. This updated meta-analysis aims to compare IVUS-guided and angiography-guided drug-eluting stent (DES) implantation, simultaneously stressing the value of an optimal IVUS-defined procedure. Medline, Scopus, Google Scholar, and Cochrane Controlled Trials Registry were searched for the randomized trials comparing IVUS-guided and angiography-guided DES implantation...
February 12, 2019: International Journal of Cardiovascular Imaging
Maria Curieses Luengo, Claudia F Consiglieri, Manuel Puga, Joan B Gornals
INTRODUCTION: the appearance of the lumen-apposing metal stent (LAMS) has meant an authentic revolution. To date, the results are promising but it is necessary to note the technical incidents and LAMS-related complications. CASE REPORT: an EUS-transmural guided drainage using a HotAXIOS was planned for a 36-year-old man with oral intolerance due to a voluminous walled-off necrosis. The distal flange was left in the collection, but a total distal malposition occurred during the proximal flange delivery, despite correct apposition with visualization of the black mark...
February 11, 2019: Revista Española de Enfermedades Digestivas
Lukasz Koltowski, Mariusz Tomaniak, Lisa Gross, Bartosz Rymuza, Michal Kowara, Radoslaw Parma, Anna Komosa, Mariusz Klopotowski, Claudius Jacobshagen, Tommaso Gori, Daniel Aradi, Kurt Huber, Martin Hadamitzky, Steffen Massberg, Maciej Lesiak, Krzysztof J Filipiak, Adam Witkowski, Grzegorz Opolski, Zenon Huczek, Dirk Sibbing
To investigate the safety and efficacy of an early platelet function testing (PFT)-guided de-escalation of dual antiplatelet treatment (DAPT) in acute coronary syndrome (ACS) patients undergoing percutaneous coronary intervention (PCI) with bioresorbable vascular scaffolds (BVS). Early DAPT de-escalation is a new non-inferior alternative to 12-months DAPT in patients with biomarker positive ACS treated with stent implantation. In this post-hoc analysis of the TROPICAL-ACS trial, which randomized 2610 ACS patients to a PFT-guided DAPT de-escalation (switch from prasugrel to clopidogrel) or to control group (uniform prasugrel), we compared clinical outcomes of patients (n = 151) who received a BVS during the index PCI...
February 9, 2019: Journal of Thrombosis and Thrombolysis
Hao Shen, Cheng Wang, Le Xie, Shoujun Zhou, Lixu Gu, Hongzhi Xie
PURPOSE: This paper describes the design, principles, performances, and applications of a novel image-guided master-slave robotic system for vascular intervention (VI), including the performance evaluation and in vivo trials. METHODS: Based on the peer-to-peer (P2P) remote communication system, the kinetics analysis, the sliding-mode neural network self-adaptive control model and the feedback system, this new robotic system can accomplish in real time a number of VI operations, including guidewire translation and rotation, balloon catheter translation, and contrast agent injection...
February 9, 2019: International Journal of Computer Assisted Radiology and Surgery
Anja Hanser, Ludger Sieverding, Till-Karsten Hauser, Gesa Wiegand, Michael Hofbeck
OBJECTIVES: To describe the efficacy and safety of stent-retriever thrombectomy in infants with thrombosis of the superior vena cava (SVC) and innominate vein. BACKGROUND: Thrombosis of the SVC and of the innominate vein is a potentially life threatening complication in infants during intensive care treatment following major surgical procedures. To avoid reoperations, we evaluated interventional revascularization by stent-retriever thrombectomy. METHODS: From 2015 to 2017, five infants were diagnosed with acute thrombosis of the SVC and innominate vein following major cardiac or pediatric surgery...
February 9, 2019: Catheterization and Cardiovascular Interventions
Toshio Fujisawa, Hiroaki Saito, Hiroyuki Isayama
Endoscopic ultrasound-guided hepaticogastrostomy (EUS-HGS) is useful as an alternative biliary drainage for patients with a difficult biliary approach, but the procedure has a high complication rate1, 2 . We present a case in which a stent that migrated into the peritoneal cavity was removed endoscopically under fluoroscopic guidance. A 72-year-old male with esophageal cancer presented to our department for treatment of obstructive jaundice. Metastatic peritonitis caused stricture of the distal bile duct and the duodenum...
February 8, 2019: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
Matthew R Krafft, John Y Nasr
The advancement of pancreatic endotherapy has increased the availability of minimally invasive endoscopic pancreatic ductal drainage techniques. In this regard, familiarity with endoscopic ultrasound-guided pancreatic duct drainage (EUS-PDD) is critical for treatment of obstructed pancreatic ductal systems, especially in nonsurgical candidates and in patients desiring a minimally invasive approach. Two distinct forms of EUS-PDD exist, viz. rendezvous-assisted endoscopic retrograde pancreatography (rendezvous-assisted ERP) and anterograde EUS-PDD...
February 7, 2019: Digestive Diseases and Sciences
Yu Jiang, Li-Peng He, Ren Gong, Guang-Tao Lei, Yan-Qing Wu
OBJECTIVE: This systematic review was designed to evaluate the overall efficacy of optical coherence tomography (OCT)-guided implantation versus angiography-guided for percutaneous coronary intervention. METHODS: The following electronic databases, such as CENTRAL, PubMed, Cochrane, and EMBASE were searched for systematic reviews to investigate OCT-guided and angiography-guided implantation. We measured the following 7 parameters in each patient: stent thrombosis, cardiovascular death, myocardial infarction, major adverse cardiac events (MACE), target lesion revascularization (TLR), target vessel revascularization (TVR), all-cause death...
February 2019: Medicine (Baltimore)
Hiroshi Yamauchi, Tomohisa Iwai, Mitsuhiro Kida, Kosuke Okuwaki, Takahiro Kurosu, Masafumi Watanabe, Kai Adachi, Masayoshi Tadehara, Hiroshi Imaizumi, Wasaburo Koizumi
BACKGROUND: Endoscopic transmural drainage is performed for symptomatic peripancreatic fluid collections (PPFCs). Long-term transmural double-pigtail stent (DPS) placement is useful in preventing recurrences. There are few reports on the long-term safety of DPS placement. Thus, this study aimed to examine the complications of long-term indwelling DPS for PPFCs. METHODS: Among 53 patients who underwent endoscopic ultrasound-guided transmural drainage for symptomatic PPFCs between April 2006 and March 2017, those followed up for over one year were included...
February 6, 2019: Digestive Diseases and Sciences
Phillip S Ge, Joyce Y Young, William Dong, Christopher C Thompson
BACKGROUND: EUS-guided gastroenterostomy (EUS-GE) is a novel procedure for palliation of malignant gastric outlet obstruction (GOO); however, data comparing EUS-GE to enteral stent placement are limited. We aimed to compare clinical outcomes between EUS-GE and enteral stent placement in the palliation of malignant GOO. METHODS: Retrospective analysis of a prospectively collected database on patients who underwent EUS-GE or enteral stent placement for palliation of malignant GOO from 2014 to 2017 was conducted...
February 6, 2019: Surgical Endoscopy
Michael Ruyssers, Dirk Smets, Guy Verfaillie, Jan Lamote
OBJECTIVE: The following case report elicits the treatment of a 55-year-old male who was diagnosed with a surinfected mediastinal chyloma as a complication of mediastinoscopy and radiotherapy for a primary adenocarcinoma of the right lung (cT2aN2M0). METHODS: The patient was admitted to the hospital after radiographical imaging showed a surinfected mediastinal chyloma. CT-guided percutaneous drainage was performed and via gastroscopy a fistula was diagnosed for which a full covered stent was placed...
February 6, 2019: Acta Chirurgica Belgica
Paul Guedeney, Sabato Sorrentino, Bimmer Claessen, Roxana Mehran
Anemia is one of the most frequent comorbidities in acute coronary syndrome (ACS) patients and is associated with a significant impact on clinical outcomes. This review summarizes the knowledge and updated management of anemia in the setting of ACS. Areas covered: We provide a review on the prevalence, pathophysiology, prognosis, impact, and updated management of anemia. Expert opinion: Patients with anemia represent a therapeutic challenge in the setting of acute coronary syndrome and require specific acute and chronic management...
February 4, 2019: Expert Review of Cardiovascular Therapy
Jingfei Teng, Zhuomin Jia, Xing Ai, Yawei Guan, Feng Gao
BACKGROUND: Ureteral stenting is a technique-demanding procedure performed during robot-assisted laparoscopic ureteral reimplantation (RALUR). Many stenting techniques have been reported; however, none of them could be accepted as an ideal way. OBJECTIVES: The aim of the study was to report our initial results of a modified stenting technique for RALUR. METHODS: Consecutive 4 patients undergoing RALUR were prospectively enrolled into our study...
February 1, 2019: Urologia Internationalis
Thanh N Nguyen, Alicia C Castonguay, Raul G Nogueira, Diogo C Haussen, Joey D English, Sudhakar R Satti, Jennifer Chen, Hamed Farid, Candace Borders, Erol Veznedaroglu, Mandy J Binning, Ajit S Puri, Nirav A Vora, Ron F Budzik, Guilherme Dabus, Italo Linfante, Vallabh Janardhan, Amer Alshekhlee, Michael G Abraham, Randall C Edgell, M Asif Taqi, Ramy El Khoury, Maxim Mokin, Aniel Q Majjhoo, Mouhammed R Kabbani, Michael T Froehler, Ira Finch, Sameer A Ansari, Roberta Novakovic, Mohamad Abdalkader, Osama O Zaidat
INTRODUCTION: The Solitaire stent retriever registry showed improved reperfusion, faster procedure times, and better outcome in acute stroke patients with large vessel occlusion treated with a balloon guide catheter (BGC) and Solitaire stent retriever compared with a conventional guide catheter. The goal of this study was to evaluate whether use of a BGC with the Trevo stent retriever improves outcomes compared with a conventional guide catheter. METHODS: The TRACK registry recruited 23 sites to submit demographic, clinical, and site adjudicated angiographic and outcome data on consecutive patients treated with the Trevo stent retriever...
February 2, 2019: Journal of Neurointerventional Surgery
Andrea Siani, Tommaso Castrucci, Federico Accrocca, Giulia Ianni, Stefano Corona, Gennaro De Vivo, Gianluca Smedile, Stefano Bartoli
Pseudoaneurysm is a rare complication after carotid endarterectomy. Herein we report a successful endovascular exclusion of a symptomatic carotid pseudoaneurysm occured ten years after an eversion carotid endoarterectomy by means of 2 overlapping micromesh stents ( Inspire MD C-Guard™ ) and balloon guide catheter ( FlowGate2 Balloon Guide Catheter ) used as a proximal protection device.
January 31, 2019: Annals of Vascular Surgery
Keisuke Okamura, Tetsu Okuda, Yusuke Fukuda, Yosuke Takamiya, Kazuyuki Shirai, Shigerou Miyajima, Tatsu Ishii, Hidenori Urata
BACKGROUND Before partial adrenalectomy for primary aldosteronism due to a primary adrenal adenoma, the aldosterone-producing tumor can be localized by segmental adrenal vein sampling (S-AVS). Cardiologists, who regularly perform percutaneous coronary intervention (PCI), or coronary angioplasty with stent, may not be familiar with the technique of S-AVS. A case of the use of S-AVS is reported in a patient who presented with primary aldosteronism and a right adrenal adenoma. CASE REPORT A 44-year-old man with a history of hypertension presented with a man in the posterior part of the right adrenal gland...
February 2, 2019: American Journal of Case Reports
Tossapol Kerdsirichairat, Shayan Irani, Juliana Yang, Olaya I Brewer Gutierrez, Robert Moran, Omid Sanaei, Mohamad Dbouk, Vivek Kumbhari, Vikesh K Singh, Anthony N Kalloo, Mouen A Khashab
Background and study aims  EUS-guided gastroenterostomy (GE) is a novel, minimally invasive endoscopic procedure for the treatment of gastric outlet obstruction (GOO). The direct-EUS-GE (D-GE) approach has recently gained traction. We aimed to report on a large cohort of patients who underwent DGE with focus on long-term outcomes. Patients and methods  This two-center, retrospective study involved consecutive patients who underwent D-GE between October 2014 and May 2018. The primary outcomes were technical and clinical success...
February 2019: Endoscopy International Open
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