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Protective stent

Andrew A Fanous, Sabareesh K Natarajan, Patrick K Jowdy, Travis M Dumont, Maxim Mokin, Jihnhee Yu, Adam Goldstein, Michael M Wach, James L Budny, L Nelson Hopkins, Kenneth V Snyder, Adnan H Siddiqui, Elad I Levy
No abstract text is available yet for this article.
November 2016: Neurosurgery
Stephen P Lownie, David M Pelz, Manas Sharma, Sachin K Pandey, Melfort R Boulton, Donald H Lee
No abstract text is available yet for this article.
November 2016: Neurosurgery
Shigemitsu Shirai, Keisuke Hirano, Norihiro Kobayashi
It is difficult to treat a thrombotic embolism in the common femoral artery or popliteal artery (POP A), i.e., the non-stenting zone. We report a new technique for the treatment of thrombotic embolism in the non-stenting zone using a self-expandable nitinol stent. Case 1 had an external iliac artery (EIA) occlusion that occurred over several months. A self-expandable nitinol stent was placed in the right EIA lesion via a retrograde approach using a distal 9-Fr balloon protection guide catheter in the right femoral artery...
October 19, 2016: Catheterization and Cardiovascular Interventions
Takayuki Warisawa, Toru Naganuma, Sunao Nakamura
We report a case of percutaneous coronary intervention in a bifurcation lesion involving left circumflex (LCx) artery and 2 major posterolateral (PL) arteries. The target LCx had diffuse long and severely calcified lesion with the acute takeoff angle from the left main. Despite adequate lesion preparation with rotational atherectomy and balloon angioplasty, the stent was not deliverable, even with deep intubation of 7Fr-guiding catheter. Conventional use of guiding extension catheter (GEC) would have required removal of a wire from at least one PL because of the device interference in the GEC...
October 18, 2016: Cardiovascular Intervention and Therapeutics
Anastasia Mihailidou, Anthony Ashton
OBJECTIVE: Myocardial infarction (MI) continues to be a major burden of disease, despite rapid reperfusion interventions. Reperfusion of ischemic hearts (reperfusion injury) induces free radical generation, activation of early stress responses and apoptosis, which contributes to ventricular remodeling and dysfunction, which may lead to developing heart failure. Mineralocorticoid receptor (MR) antagonists have been shown clinically to reduce blood pressure, particularly in resistant hypertension, and substantially increase survival in heart failure...
September 2016: Journal of Hypertension
Xie Ge, Si-Yu Chen, Mei Liu, Ting-Ming Liang, Chang Liu
Vascular smooth muscle cell (VSMC) proliferation is a key event in the development of in‑stent restenosis. Evodiamine is an indole alkaloid extracted from the Chinese medicine, evodia, and has been shown to inhibit tumor cell proliferation and protect the cardiovascular system. However, whether evodiamine affects VSMC proliferation remains to be elucidated. Therefore, the present study examined the effects and the mechanisms of action of evodiamine on the proliferation of rat VSMCs. The cells were treated with evodiamine alone or in combination with platelet‑derived growth factor‑BB (PDGF‑BB) stimulation...
October 5, 2016: Molecular Medicine Reports
Tuba Akinci, Eda Derle, Seda Kibaroğlu, Ali Harman, Feride Kural, Pınar Cınar, Munire Kilinc, Hakki T Akay, Ufuk Can, Ulku S Benli
OBJECTIVE: To review our results of carotid artery stenting (CAS) and carotid endarterectomy (CEA). METHODS: We evaluated the medical records of patients undergoing carotid artery revascularization procedure, between 2001 and 2013 in Baskent University Hospital, Ankara, Turkey. Carotid artery stenting or CEA procedures were performed in patients with asymptomatic carotid stenosis (>/=70%) or symptomatic stenosis (>/=50%). Demographic data, procedural details, and clinical outcomes were recorded...
October 2016: Neurosciences: the Official Journal of the Pan Arab Union of Neurological Sciences
S Fischer, A Weber, A Carolus, F Drescher, F Götz, W Weber
BACKGROUND: Endovascular treatment of wide-necked aneurysms remains challenging without the use of adjunctive devices to preserve the parent artery. OBJECTIVE: To present our initial experience with a temporary bridging device, the Comaneci (Rapid Medical, Israel). The compliant remodeling mesh protects the parent artery during coil occlusion without flow arrest in the distal vasculature. Permanent dual antiplatelet therapy is not required since the device is fully removed at the end of the procedure...
October 14, 2016: Journal of Neurointerventional Surgery
Theodor Baars, Philipp Kahlert, Albert Baars, Heike Preibsch, Tienush Rassaf, Gerd Heusch, Petra Kleinbongard
OBJECTIVE: Stent implantation into atherosclerotic coronary vessels induces the release of particulate debris and soluble vasoactive substances, which impair downstream microvascular function. Microvascular perfusion, however, is also determined by hemorheological parameters. We therefore analyzed now changes in erythrocyte (RBC) aggregation in coronary arterial blood during stent implantation. METHODS: Symptomatic male patients with stable angina pectoris and stenosis in their native right coronary artery (RCA) or saphenous vein graft on right coronary artery (SVG-RCA) were enrolled...
October 13, 2016: Microcirculation: the Official Journal of the Microcirculatory Society, Inc
Silvia Lee, Markus Durstberger, Beate Eichelberger, Christoph W Kopp, Renate Koppensteiner, Simon Panzer, Thomas Gremmel
BACKGROUND: The beneficial effects of ß-blockers on the long-term prognosis of patients with cardiovascular disease may in part be attributable to decreased platelet activation. In this prospective cohort study, we sought to investigate the impact of concomitant ß-blocker therapy on sensitive markers of platelet activation and aggregation. MATERIALS AND METHODS: Monocyte- (MPA) and neutrophil-platelet aggregate (NPA) formation in vivo and in response to the platelet agonist adenosine diphosphate (ADP) were determined by flow cytometry in 258 patients undergoing angioplasty and stenting...
October 13, 2016: European Journal of Clinical Investigation
V Gómez-Dos Santos, V Díez-Nicolás, L Martínez-Arcos, J J Fabuel-Alcañiz, I Laso-García, S Álvarez-Rodríguez, F de Asís Donis-Canet, V Hevia-Palacios, M Ruiz-Hernández, F J Burgos-Revilla
: Mayor urological complications, fistulae and stenosis, mainly affect the vesicoureteral anastomosis and present in the early post-transplant period. The systematic use of ureteral catheters keeps selecbeing controversial with many groups using them only selectively depending on the existence of pretransplant or intraoperative risk factors. METHODS: We performed a bibliographic review through automatized search in the Medline bibliographic database, as the main bibliographic source, and also in Clinical Key...
October 2016: Archivos Españoles de Urología
W Kram, N Buchholz, O W Hakenberg
Ureteral stents are the most commonly used urological implants. They are used for temporary as well as for long-term ureteral stenting. Amongst others, complications of ureteral stenting are encrustation and cellular adherence which, in turn, promotes urinary tract infection and can induce impaired healing in case of ureteral damage. Biofilm formation on urological implants leads to the protection of persisting bacteria from local defense mechanisms, thereby rendering persistent urinary tract infections more common...
October 2016: Archivos Españoles de Urología
Emrah Aytac, Erdem Gürkaş, Cetin Kursad Akpinar, Muhammad A Saleem, Adnan I Qureshi
OBJECTIVE: To determine the relative effectiveness of proximal and distal protection in prevention of cerebral ischemic events during carotid artery stent (CAS) placement using diffusion-weighted MRI (DW-MRI). METHODS: We analyzed data from patients who had undergone DW-MRI before and within 24 hours of CAS for symptomatic internal carotid artery (ICA) stenosis (with last ischemic events within 3 months). The study was performed prospectively; patients were not randomized, and were treated either with a proximal balloon occlusion system (Mo...
October 3, 2016: Journal of Neurointerventional Surgery
Sharon L Cheatham, Grace M Deyo
Hybrid stage I palliation combines cardiothoracic surgery and interventional transcatheter procedures for treatment of hypoplastic left heart syndrome. The approach is an alternative to the Norwood procedure, the traditional first stage of surgical palliation. Hybrid stage I palliation involves placing bilateral branch pulmonary artery bands and a patent ductus arteriosus stent through a median sternotomy, performed without cardiopulmonary bypass. The purpose of the bands is to control blood flow to the lungs and protect the pulmonary bed while the stent sustains systemic cardiac output...
October 2016: Critical Care Nurse
Jeffrey Steinberg, Vincent Cheung, Gunjan Goel, J Scott Pannell, Javan Nation, Alexander Khalessi
Although there have been reports of carotid artery pseudoaneurysm formation after adenoidectomy and/or tonsillectomy secondary to iatrogenic injury, there are no case reports of successful endovascular reconstruction of the injured artery in the pediatric population. In most pediatric cases, the internal carotid artery (ICA) is sacrificed. The authors report on a 6-year-old girl who presented with odynophagia, left-sided Horner's syndrome, hematemesis, and severe anemia 6 months after a tonsillectomy. On examination she was found to have a pulsatile mass along the left posterior lateral oropharynx, and imaging demonstrated a dissection of the extracranial left ICA and an associated pseudoaneurysm...
September 30, 2016: Journal of Neurosurgery. Pediatrics
Xiao Zheng, Bo Sun, Ye-Chen Wu, Zhi-Yuan Bo, Wei Wan, Dao-Jian Gao, Bing Hu
OBJECTIVES: The management of benign biliary stricture is challenging. Endoscopic therapy has evolved as the first-line treatment for various benign biliary strictures. However, covered self-expandable metal stents have not been approved by the United States Food and Drug Administration for the treatment of benign biliary stricture. With this goal, we conducted this systemic review and meta-analysis to evaluate the efficacy and safety of endoscopic stenting with covered self-expandable metal stent in the treatment of benign biliary stricture...
September 28, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
Kosuke Minaga, Masayuki Kitano, Chimyon Gon, Kentaro Yamao, Hajime Imai, Takeshi Miyata, Ken Kamata, Shunsuke Omoto, Mamoru Takenaka, Masatoshi Kudo
BACKGROUND AND AIMS: Endoscopic ultrasonography (EUS)-guided choledochoduodenostomy (EUS-CDS) is increasingly utilized in the treatment of malignant distal biliary obstruction. Standardized use of this technique requires improvements in instruments, including more convenient and safer devices. This study was designed to evaluate the resistance force to migration (RFM) of a newly designed laser-cut metal stent and the feasibility of EUS-CDS using this stent. METHODS: This experimental study utilized a porcine model of biliary dilatation involving five male pigs...
September 28, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
E Allan, H Hamedani, M Van Putten, D M Blakaj
No abstract text is available yet for this article.
October 1, 2016: International Journal of Radiation Oncology, Biology, Physics
Ahmet Yigit Goktay, Cagin Senturk
Deep venous thrombosis (DVT) is a common disorder with a significant mortality rate. Successful endovascular treatment of acute DVT is most likely to be achieved in patients with recently formed thrombus, (<10-14 days) with acute iliofemoral DVT. Endovascular treatment options include: Catheter-directed thrombolysis (CDT), pharmacomechanical catheter-directed thrombolysis (PCDT), percutaneous aspiration thrombectomy (PAT), vena cava filter protection, venous balloon dilatation and venous stent implantation...
September 24, 2016: Advances in Experimental Medicine and Biology
Rainer Zbinden, Stefanie von Felten, Bastian Wein, David Tueller, David J Kurz, Ivano Reho, Soren Galatius, Hannes Alber, David Conen, Matthias Pfisterer, Christoph Kaiser, Franz R Eberli
AIMS: The British National Institute of Clinical Excellence (NICE) guidelines recommend to use DES instead of BMS only in lesions >15mm in length or in vessels < 3mm in diameter. We analysed the impact of stent length and stent diameter on ISR in the BASKET-PROVE study population and evaluated the cost-effectiveness of DES compared to BMS. METHODS/RESULTS: The BASKET-PROVE trial compared DES vs. BMS in large coronary arteries (≥3mm). We calculated incremental cost-effectiveness ratios (ICERs) and cost-effectiveness acceptability curves with regard to quality-adjusted life years (QALYs) gained and target lesion revascularisations (TLRs) avoided...
September 23, 2016: Cardiovascular Therapeutics
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