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Venous stent

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https://www.readbyqxmd.com/read/28100973/endovascular-treatment-of-superior-vena-cava-syndrome-via-balloon-in-balloon-catheter-technique-with-a-palmaz-stent
#1
Wassim Shatila, Abdelkader Almanfi, Mehran Massumi, Kathryn G Dougherty, Dhaval R Parekh, Neil E Strickman
Superior vena cava syndrome is a well-known disease entity that carries substantial rates of morbidity and mortality. Although most cases of superior vena cava syndrome are secondary to a malignant process, additional causes (such as mediastinal fibrosis, pacemaker lead implantation, or central venous catheter placement) have been reported. Multiple treatment options include percutaneous transluminal angioplasty, stent implantation, thrombolysis, mechanical thrombectomy, and venous grafting. We present a case of superior vena cava syndrome in a symptomatic 30-year-old woman who obtained complete relief of obstruction and marked symptomatic improvement through venoplasty and stenting, aided by our use of a balloon-in-balloon catheter system...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28073989/patency-of-the-vein-of-labb%C3%A3-after-venous-stenting-of-the-transverse-and-sigmoid-sinuses
#2
Daniel M S Raper, Dale Ding, Ching-Jen Chen, Thomas J Buell, R Webster Crowley, Kenneth C Liu
BACKGROUND: Venous sinus stenting is an emerging treatment for patients with idiopathic intracranial hypertension and evidence of venous stenosis. Stents placed across the transverse and sigmoid sinuses often cover the vein of Labbé (VOL), a major anastomotic vein draining the cerebral hemisphere. The patency of the VOL after stenting and its clinical implications are poorly understood. METHODS: A retrospective analysis was performed of a prospectively collected database of patients undergoing venous sinus stenting...
January 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28056798/high-rate-of-in-stent-restenosis-after-coronary-intervention-in-carriers-of-the-mutant-mannose-binding-lectin-allele
#3
Zsolt Bagyura, Loretta Kiss, Balázs Berta, Ágnes Szilágyi, Kristóf Hirschberg, Gábor Széplaki, Árpád Lux, Zsolt Szelid, Pál Soós, Béla Merkely
BACKGROUND: In-stent restenosis occurs in 10-30% of patients following bare metal stent (BMS) implantation and has various risk factors. Mannose-binding lectin (MBL) is known to have effect on the progression of atherosclerosis. Single nucleotide polymorphisms (SNP) of the MBL2 gene intron 1 (codon 52, 54, 57) are known to modulate the bioavailability of the MBL protein. Our aim was to identify the association of these polymorphisms of the MBL gene in the occurrence of in-stent restenosis after coronary artery bare metal stent implantation...
January 5, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28051160/lipopolysaccharide-induced-neutrophil-dysfunction-following-transjugular-intrahepatic-portosystemic-stent-shunt-tipss-insertion-is-associated-with-organ-failure-and-mortality
#4
Jane Macnaughtan, Rajeshwar P Mookerjee, Rajiv Jalan
Systemic lipopolysaccharide (LPS) is implicated in increasing mortality in patients with alcoholic hepatitis but the underlying mechanisms are not well characterised. The objective of this study was to characterise neutrophil function, LPS and cytokine concentrations within the splanchnic circulation of alcoholic cirrhotic patients undergoing TIPSS insertion for variceal haemorrhage and correlate this with outcome. 26 patients with alcoholic cirrhosis and variceal haemorrhage were studied prior to and 1-hour after TIPSS insertion...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28045757/left-colonic-bleeding-secondary-to-inferior-mesenteric-vein-stenosis
#5
Thang Q Le, Donald Romanelli
Lower gastrointestinal bleeding is most commonly associated with diverticulosis, ischemic colitis, vascular ectasia, and anorectal disease and less commonly associated with colonic malignancy. Infrequently, it is associated with mesenteric varices, a rare etiology that is not well documented in the radiology literature. We present a case of a 50-year-old man diagnosed as having intermittent left colonic bleeding from mesenteric varices due to a critical stenosis at the portal vein-inferior mesenteric vein confluence...
December 29, 2016: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28031679/elevated-factor-viii-levels-associated-with-acute-graft-occlusion-and-arterial-and-venous-thrombosis-after-off-pump-cabg
#6
Crystal A Kyaw, Pey-Jen Yu, Frank Manetta
Factor VIII is a common acute phase reactant and elevated levels confer an increased risk of thrombosis. Such thrombotic events have been documented in the literature, though to a limited extent. We present the case of a 54-year-old man presenting with a non-Q-wave myocardial infarction who was found to have triple vessel disease and subsequently underwent a 4-vessel coronary artery bypass grafting (CABG). Postoperatively, he was found to have multiple occluded vessels, deep vein thromboses, and a cerebrovascular accident (CVA)...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28013373/an-update-on-idiopathic-intracranial-hypertension
#7
Mark Portelli, Panagiotis N Papageorgiou
BACKGROUND: Idiopathic intracranial hypertension (IIH) is still a grey area in the knowledge of the aetiology, diagnosis and management of neurosurgical diseases. The definition of IIH has been reviewed over time and many hypotheses have been expressed as cause of the disease. The literature supplies very little evidence-based information to guide our decision-making process when it comes to treat the disease. In this review we sum up the latest information regarding the aetiology and therapy of IIH...
December 24, 2016: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28009240/venous-sinus-stenting-for-reduction-of-intracranial-pressure-in-iih-a-prospective-pilot-study
#8
Kenneth C Liu, Robert M Starke, Christopher R Durst, Tony R Wang, Dale Ding, R Webster Crowley, Steven A Newman
OBJECTIVE Idiopathic intracranial hypertension (IIH) may cause blindness due to elevated intracranial pressure (ICP). Venous sinus stenosis has been identified in select patients, leading to stenting as a potential treatment, but its effects on global ICP have not been completely defined. The purpose of this pilot study was to assess the effects of venous sinus stenting on ICP in a small group of patients with IIH. METHODS Ten patients for whom medical therapy had failed were prospectively followed. Ophthalmological examinations were assessed, and patients with venous sinus stenosis on MR angiography proceeded to catheter angiography, venography with assessment of pressure gradient, and ICP monitoring...
December 23, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28007450/a-review-of-open-and-endovascular-treatment-of-superior-vena-cava-syndrome-of-benign-aetiology
#9
REVIEW
G S Sfyroeras, C N Antonopoulos, G Mantas, K G Moulakakis, J D Kakisis, E Brountzos, C R Lattimer, G Geroulakos
BACKGROUND: The widespread use of central venous catheters, ports, pacemakers, and defibrillators has increased the incidence of benign superior vena cava syndrome (SVCS). This study aimed at reviewing the results of open and endovascular treatment of SVCS. METHOD: Medical literature databases were searched for relevant studies. Studies with more than five adult patients, reporting separate results for the SVC were included. Nine studies reported the results of endovascular treatment of SVCS including 136 patients followed up for a mean of 11-48 months...
December 19, 2016: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/27995292/initial-experience-with-elective-perventricular-melody-valve-placement-in-small-patients
#10
Aamisha Gupta, Damien Kenny, Massimo Caputo, Zahid Amin
Perventricular Melody valve placement has been described as a bailout approach or alternative RVOT approach in patients >30 kg. We present three patients <20 kg and two patients with limited venous access, where we electively performed the perventricular approach. Retrospective analysis of patients <30 kg and vascular access limitation undergoing elective hybrid pulmonary valve replacement were reviewed. The subcostal approach was performed without sternotomy with the sheath introduced through the diaphragmatic surface of the right ventricle...
December 20, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27989051/pga-polyglycolic-acid-p4hb-poly-4-hydroxybutyrate-based-bioengineered-valves-in-the-rat-aortic-circulation
#11
Agnieszka A Książek, Katharyn J Mitchell, Nikola Cesarovic, Colin C Schwarzwald, Simon P Hoerstrup, Benedikt Weber
BACKGROUND: Bioengineered living autologous valves with remodeling and growth capacity represent a promising concept for future cardiac and venous valve repair. A meticulous understanding of the mechanisms involved in recellularization and remodeling is essential for the safe and efficient clinical translation of this technology. In this context, the first investigations of bioengineered vascular grafts in immune-incompetent or transgenic rodents represented an important step. However, the in-vivo assessment of bioengineered synthetic scaffold-based (biodegradable) valve replacements in rodent models has not been achieved to date...
May 2016: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/27987620/validation-of-the-novel-venous-drainage-index-with-stepwise-increases-in-thigh-compression-pressure-in-the-quantification-of-venous-obstruction
#12
Christopher R Lattimer, Stephen Doucet, George Geroulakos, Evi Kalodiki
BACKGROUND: Venous drainage from the leg is poorly understood, and it is difficult to quantify it hemodynamically. Attempts have been made using duplex ultrasound scanning and venous occlusion air plethysmography (APG). However, they have limited value in day-to-day clinical practice. This is because venous drainage measurements have never been validated successfully against increasing obstruction pressures. The hypothesis is that the novel gravitational venous drainage index (VDI) in milliliters/second is reduced in response to increasing venous obstruction, and the aim was to quantify this, using stepwise inflations of a thigh cuff...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27987616/deep-venous-thrombosis-associated-with-caval-extension-of-iliac-stents
#13
Erin H Murphy, Blake Johns, Elliot Varney, William Buck, Arjun Jayaraj, Seshadri Raju
BACKGROUND: It is generally difficult to place an iliac vein stent precisely at the iliocaval junction with venographic control or even with intravascular ultrasound guidance. Furthermore, mechanical properties of the Wallstent (Boston Scientific, Marlborough, Mass) can predispose precisely placed stents to distal displacement or stent collapse. Our center has thus advocated extending Wallstents 3 to 5 cm into the inferior vena cava to prevent complications of missed proximal lesions or stent migration...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27987609/endovascular-management-of-chronic-total-occlusions-of-the-inferior-vena-cava-and-iliac-veins
#14
Erin H Murphy, Blake Johns, Elliot Varney, Seshadri Raju
OBJECTIVE: Percutaneous recanalization and stenting is currently the standard of care for symptomatic chronic total occlusions (CTOs) of the iliofemoral veins. CTO lesions involving the inferior vena cava (IVC) present a more complex patient subset. In this series we describe our single-center experience with endovascular recanalization of symptomatic occlusions of the IVC. METHODS: Patients were evaluated with duplex ultrasound imaging, venous function tests, and venography before intervention...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27987604/common-femoral-endovenectomy-in-conjunction-with-iliac-vein-stenting-to-improve-venous-inflow-in-severe-post-thrombotic-obstruction
#15
Himanshu Verma, Ramesh K Tripathi
Post-thrombotic syndrome secondary to iliofemoral deep venous thrombosis is a significant contributor to advanced chronic venous insufficiency. Iliac vein stenting is a standard procedure to treat iliocaval obstruction. In cases with obstruction extending across the groin, venous inflow for an iliac vein stent may be poor and compromise results of iliac vein stenting. Treatment options include extension of stents across the inguinal ligament that may have limitations in improving inflow only from only one vessel...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27970159/tct-772-high-prevalence-of-pelvic-venous-compression-syndrome-among-patients-with-chronic-venous-insufficiency-and-effective-treatment-with-venous-stenting
#16
Yu Xie, Abhimanyu Uberoi, Jill Tannerc, Samir Mehrotra, Norman Leporv, Hooman Madyoon
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27968851/development-of-the-novel-antiplatelet-agent-adtm-originating-from-traditional-chinese-medicine-a-chemical-proteomic-analysis-and-in-vivo-assessment-of-efficacy-in-an-animal-model
#17
Guozhen Cui, Angela Wa Ho, Simon Ming Yuen Lee, Yuqiang Wang, Maggie Pui Man Hoi
BACKGROUND: An ageing population and lifestyle changes have led to increased cardiovascular disease-related morbidity and mortality in China, where an estimated 230 million people have cardiovascular disease. Long-term antiplatelet therapy with aspirin and clopidogrel are used for treatment and post-stenting primary prevention of acute coronary syndrome, but the risk of bleeding complications is high. This study aimed to identify the target of the newly developed antiplatelet agent ADTM, originating from traditional Chinese herbs...
October 2016: Lancet
https://www.readbyqxmd.com/read/27965382/predictors-for-venous-sinus-stent-retreatment-in-patients-with-idiopathic-intracranial-hypertension
#18
Amgad El Mekabaty, Nancy A Obuchowski, Mark G Luciano, Seby John, Charlotte Y Chung, Abhay Moghekar, Stephen Jones, Ferdinand K Hui
BACKGROUND: Venous sinus stenting for dural sinus stenoses is an emerging alternative to cerebrospinal fluid diversion in cases of medically refractory idiopathic intracranial hypertension. Juxta-stent 're-stenoses' have been reported and managed alternatively with ventricular shunting or stent revision. Identification of factors that might predispose patients to recurrent narrowing may help to select or exclude patients with idiopathic intracranial hypertension for venous sinus stenting...
December 13, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27956806/therapeutic-efficacy-and-stent-patency-of-transhepatic-portal-vein-stenting-after-surgery
#19
Ung Bae Jeon, Chang Won Kim, Tae Un Kim, Ki Seok Choo, Joo Yeon Jang, Kyung Jin Nam, Chong Woo Chu, Je Ho Ryu
AIM: To evaluate portal vein (PV) stenosis and stent patency after hepatobiliary and pancreatic surgery, using abdominal computed tomography (CT). METHODS: Percutaneous portal venous stenting was attempted in 22 patients with significant PV stenosis (> 50%) - after hepatobiliary or pancreatic surgery - diagnosed by abdominal CT. Stents were placed in various stenotic lesions after percutaneous transhepatic portography. Pressure gradient across the stenotic segment was measured in 14 patients...
November 28, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27956171/endovascular-parent-artery-occlusion-of-large-or-giant-unruptured-internal-carotid-artery-aneurysms-a-long-term-single-center-experience
#20
Kampei Shimizu, Hirotoshi Imamura, Yohei Mineharu, Hidemitsu Adachi, Chiaki Sakai, Shoichi Tani, Koichi Arimura, Mikiya Beppu, Nobuyuki Sakai
The development of stent-like devices has increased treatment options for complex internal carotid artery (ICA) aneurysms, but the optimal treatment remains unclear. The purpose of this study was to evaluate the safety and efficacy of endovascular parent-artery occlusion (PAO) for ICA aneurysms. We retrospectively reviewed 28 patients with unruptured ICA aneurysms ⩾10mm treated with PAO between April 2002 and March 2015 at our institution. Patients who developed neurologic symptoms or with venous-phase delay >2s during balloon test occlusion were not treated by PAO...
December 9, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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