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Vascular access stenosis

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https://www.readbyqxmd.com/read/29425561/impact-of-peripheral-artery-disease-on-early-and-late-outcomes-of-transcatheter-aortic-valve-implantation-in-patients-with-severe-aortic-valve-stenosis
#1
Byung Gyu Kim, Young-Guk Ko, Sung-Jin Hong, Chul-Min Ahn, Jung-Sun Kim, Byeong-Keuk Kim, Donghoon Choi, Yangsoo Jang, Myeong-Ki Hong, Seung Hyun Lee, Sak Lee, Byung-Chul Chang
AIMS: Peripheral artery disease (PAD) is frequently present in patients undergoing transcatheter aortic valve implantation (TAVI) for severe aortic stenosis. This study assessed the impact of PAD on clinical outcome after TAVI. METHODS: A total of 115 patients who underwent TAVI were evaluated retrospectively. Patients were divided into PAD and non-PAD groups, with PAD defined as stenosis≥50% in lower extremity arteries. Immediate and late clinical outcomes were compared between the two groups...
March 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29421416/primary-stenting-of-right-sided-subclavian-artery-stenosis-presenting-as-subclavian-steal-syndrome-report-of-three-cases-and-literature-review
#2
Georgios Sahsamanis, Georgios Vourliotakis, Konstantinos Pirgakis, Anastasios Lekkas, Ioannis Kantounakis, Alexandra Terzoglou, Vasileios Tzilalis
BACKGROUND: Right-sided subclavian artery stenosis is a rare cerebrovascular disease involving the upper extremities. Considering an endovascular approach for its management requires increased endovascular and catheterization skills, when compared to the left side, due to the close approximation of the right subclavian artery origin, vertebral and common carotid arteries. METHODS: Three patients suffering from proximal right sided subclavian artery stenosis were treated in our center through primary stenting...
February 5, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29368369/recent-developments-and-controversies-in-transcatheter-aortic-valve-implantation
#3
REVIEW
Noman Ali, Peysh A Patel, Steven J Lindsay
Interventional cardiology has been revolutionised by transcatheter aortic valve implantation (TAVI), which has become established as the benchmark treatment for severe aortic stenosis in patients at high risk for surgical aortic valve replacement (AVR). Increased procedural familiarity and progression in device technology has enabled improvements to be made in complication rates, which have led to a commensurate expansion in the use of TAVI; it is now a viable alternative to AVR in patients at intermediate surgical risk, and has been used in cohorts such as those with bicuspid aortic valves or pure, severe aortic regurgitation...
January 25, 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29359391/angiographic-follow-up-of-infants-and-children-undergoing-percutaneous-carotid-artery-interventions
#4
R Allen Ligon, Dennis W Kim, Robert N Vincent, Holly D Bauser-Heaton, Yinn K Ooi, Christopher J Petit
OBJECTIVE: The purpose of this study was to review the outcomes following the percutaneous carotid arterial (PCA) approach in infants and children with congenital heart disease. BACKGROUND: PCA access is becoming more commonly adopted following reports demonstrating it is a safe alternative to surgical carotid cutdown and even the femoral arterial route. However, follow-up outcomes after PCA remain unreported. METHODS: We reviewed all cases with PCA access and follow-up catheterizations which included carotid artery (CA) angiography between May 2012 until December 2016...
January 23, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29321037/acute-aortoiliac-occlusive-disease-during-percutaneous-transluminal-angioplasty-in-the-setting-of-st-elevation-myocardial-infarction-a-case-report
#5
Anthony H Kashou, Nabil Braiteh, Ali Zgheib, Hisham E Kashou
BACKGROUND: Aortoiliac occlusive disease, which is also referred to as Leriche syndrome, is a chronic atherosclerotic occlusive disease that occurs at the level of the aortic bifurcation. It is often thought to present with a triad of clinical symptoms: (1) intermittent lower extremity vascular claudication, (2) impotence, and (3) weak/absent femoral pulses. CASE PRESENTATION: We report a case of a 47-year-old Caucasian woman who presented with an acute inferior ST-elevation myocardial infarction...
January 11, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29314570/transubclavian-approach-a-competitive-access-for-transcatheter-aortic-valve-implantation-as-compared-to-transfemoral
#6
Ignacio J Amat-Santos, Paol Rojas, Hipólito Gutiérrez, Silvio Vera, Javier Castrodeza, Javier Tobar, L Renier Goncalves-Ramirez, Manuel Carrasco, Pablo Catala, José A San Román
AIMS: Empirically, transfemoral (TF) approach is the first choice for transcatheter aortic valve implantation (TAVI). We aimed to investigate whether transubclavian (TSc) and TF approaches present comparable major outcomes according to current evidence. METHODS: We systematically searched PubMed, EMBASE, and Cochrane database for studies with symptomatic aortic stenosis patients who underwent TAVI through TF or TSc/axillary access from January/2006 to January/2017...
January 3, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29211872/misplacement-of-stent-into-epidural-venous-plexus-with-resultant-cauda-equina-syndrome-and-open-surgical-treatment-a-case-report
#7
Benjamin B Whiting, Celene B Mulholland, Lorin Daniels, U Kumar Kakarla, Nicholas Theodore, Laura A Snyder
BACKGROUND AND IMPORTANCE: Endovascular therapy has proven to be a safe, minimally invasive treatment for multiple etiologies, but proper precautions must be taken to avoid complications. When complications occur, they should be promptly identified and corrected when possible. This case report describes endovascular stents misplaced into the epidural spinous venous plexus rather than the iliofemoral arteries, causing cauda equina syndrome, as well as the spinal procedure performed to treat the resulting spinal canal compression...
December 2, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29178510/the-pathogenesis-of-hemodialysis-vascular-access-failure-and-systemic-therapies-for-its-prevention-optimism-unfulfilled
#8
REVIEW
Andrea K Viecelli, Trevor A Mori, Prabir Roy-Chaudhury, Kevan R Polkinghorne, Carmel M Hawley, David W Johnson, Elaine M Pascoe, Ashley B Irish
In patients receiving hemodialysis, the provision of safe and effective vascular access using an arteriovenous fistula or graft is regarded as a critical priority by patients and health professionals. Vascular access failure is associated with morbidity and mortality, such that strategies to prevent these outcomes are essential. Inadequate vascular remodeling and neointimal hyperplasia resulting in stenosis and frequently thrombosis are critical to the pathogenesis of access failure. Systemic medical therapies with pleiotropic effects including antiplatelet agents, omega-3 polyunsaturated fatty acids (fish oils), statins, and inhibitors of the renin-angiotensin-aldosterone system (RAAS) may reduce vascular access failure by promoting vascular access maturation and reducing stenosis and thrombosis through antiproliferative, antiaggregatory, anti-inflammatory and vasodilatory effects...
November 26, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/29153460/real-world-procedural-and-30-day-outcome-using-the-portico-transcatheter-aortic-valve-prosthesis-a-large-single-center-cohort
#9
Andrea Denegri, Fabian Nietlispach, Jan Kottwitz, Gabor Suetsch, Philipp Haager, Hector Rodriguez, Maurizio Taramasso, Slayman Obeid, Francesco Maisano
BACKGROUND: Published procedural and short-term outcome of the Portico valve for Transcatheter Aortic Valve Implantation (TAVI) is limited. We report a single-center patient series assessing procedural and 30-day outcome of this device. METHODS AND RESULTS: Procedural and 30-day follow-up data were prospectively collected from a consecutive series of 73 patients (80.7±6.9years, 45% male, mean STS score: 4.8±3.9) with severe aortic stenosis undergoing transcatheter aortic valve implantation (TAVI)...
November 10, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29131296/complete-percutaneous-approach-versus-surgical-access-in-transfemoral-transcatheter-aortic-valve-implantation-results-from-a-multicenter-registry
#10
Janusz Kochman, Łukasz Kołtowski, Zenon Huczek, Bartosz Rymuza, Radosław Wilimski, Maciej Dąbrowski, Adam Witkowski, Marek Grygier, Anna Olasińska-Wiśniewska, Piotr Kubler, Krzysztof Reczuch, Radosław Parma, Andrzej Ochała, Dariusz Jagielak, Wacław Kochman, Eberhard Grube
BACKGROUND: Although the femoral approach is the most common route utilized in transcatheter aortic valve implantation (TAVI) it still carries a substantial risk of severe bleeding and vascular complications. The aim of our study was to compare the safety and efficacy of the complete percutaneous (CPC) approach with surgical cutdown and closure (SCC) in TAVI patients. METHODS: The study population comprised 683 patients with severe aortic stenosis who underwent transfemoral TAVI...
November 13, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/29130619/a-feasibility-study-of-transaxillary-tavi-with-the-lotus-valve
#11
Sagar N Doshi, Sudhakar George, Chun Shing Kwok, Anthony Mechery, Mamas Mamas, Peter F Ludman, Jonathan N Townend, Moninder Bhabra
OBJECTIVES: To assess the feasibility of axillary transcatheter aortic valve implantation (TAVI) using the Lotus valve. BACKGROUND: TAVI is used to treat patients with severe aortic stenosis, with transfemoral (TF) access being the safest and most widely used route. In patients unsuitable for this, there are reports that the axillary artery may be safest alternative access route. The Lotus device is a fully retrievable 2nd generation transcatheter heart valve which is licensed for femoral and transaortic access...
November 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29130612/caliber-and-fitness-of-the-axillary-artery-as-a-conduit-for-large-bore-cardiovascular-procedures
#12
Daniel M Arnett, James C Lee, Michael A Harms, Kathleen E Kearney, Mario Ramos, Bryn M Smith, Emily C Anderson, Rajiv Tayal, James M McCabe
OBJECTIVES: We sought to describe the caliber and vascular health of the subclavian and axillary arteries as related to their potential utilization in complex cardiovascular procedures. BACKGROUND: Patients referred for advanced catheter-based therapies frequently have lower extremity peripheral vascular disease that may prohibit the use of large bore arterial catheters. Utilization of the upper extremity peripheral vasculature is rarely considered as an alternative access strategy...
November 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29105493/a-7-year-single-center-experience-of-transfemoral-tavi-evolution-of-surgical-activity-and-impact-on-vascular-outcome
#13
Fabien Lareyre, Juliette Raffort, Carine Dommerc, Yacoub Habib, François Bourlon, Claude Mialhe
Transcatheter aortic valve implantation (TAVI) has become a well-established alternative to open surgery to treat aortic stenosis. We describe our 7-year TAVI experience using transfemoral access and identity changes in surgical activity and evaluate its impact on postoperative vascular outcomes. Consecutive patients (N = 340) who underwent TAVI with percutaneous transfemoral access were retrospectively included and divided into 4 quartiles according to the date of intervention. Vascular outcomes were classified according to the Valve Academic Research Consortium 2 classification...
January 1, 2017: Angiology
https://www.readbyqxmd.com/read/29104939/asymmetric-dimethylarginine-does-not-predict-early-access-events-in-hemodialysis-patients-with-brachiocephalic-fistula-access
#14
Mary Hammes, Rita McGill, Promila Dhar, Rama S Madhurapantula
Background: Vascular access for hemodialysis is best provided by an arteriovenous fistula (AVF). AVF fail primarily because of neointimal hyperplasia. Asymmetric dimethlyarginine (ADMA) is a naturally occurring analogue of L-arginine, which is elevated in renal failure and impairs endothelial cell function. ADMA inhibits nitric oxide synthetase, leading to impaired nitric oxide production and contributing to the development of neointimal hyperplasia. ADMA was measured at the time of AVF placement to evaluate associations with access failure...
August 2017: International Journal of Nephrology and Kidney Failure
https://www.readbyqxmd.com/read/29101983/acr-appropriateness-criteria%C3%A2-imaging-for-transcatheter-aortic-valve-replacement
#15
Jonathon A Leipsic, Philipp Blanke, Michael Hanley, Juan C Batlle, Michael A Bolen, Richard K J Brown, Benoit Desjardins, Robert T Eberhardt, Heather L Gornik, Lynne M Hurwitz, Hersh Maniar, Himanshu J Patel, Elizabeth F Sheybani, Michael L Steigner, Nupur Verma, Suhny Abbara, Frank J Rybicki, Jacobo Kirsch, Karin E Dill
Aortic stenosis is a common valvular condition with increasing prevalence in aging populations. When severe and symptomatic, the downstream prognosis is poor without surgical or transcatheter aortic valve replacement. Transcatheter aortic valve replacement is now considered a viable alternative to surgical aortic valve replacement in patients considered high and intermediate risk for surgery. Pre-intervention imaging with echocardiography and CT are essential for procedure planning and device selection to help optimize clinical outcomes with MR angiography playing largely a complementary role...
November 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29099536/aneurysms-in-vascular-access-state-of-the-art-and-future-developments
#16
Nicholas Inston, Hiren Mistry, James Gilbert, David Kingsmore, Zahid Raza, Matteo Tozzi, Ali Azizzadeh, Robert Jones, Colin Deane, Jason Wilkins, Ingemar Davidson, John Ross, Paul Gibbs, Dean Huang, Domenico Valenti
A master class was held at the Vascular Access at Charing Cross (VA@CX2017) conference in April 2017 with invited experts and active audience participation to discuss arteriovenous (AV) vascular access aneurysms, a serious and common complication of vascular access (VA). The natural history of aneurysms in VA is poorly defined, and although classifications exist they are not uniformly applied in studies or clinical practice. True and pseudo aneurysms of AV access occur. Whilst an AV fistula by definition is an abnormal dilatation of a blood vessel, an agreed definition of 18 mm, or 3 times accepted maturation diameter, is proposed...
November 17, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29080304/high-resolution-computational-fluid-dynamic-simulation-of-haemodialysis-cannulation-in-a-patient-specific-arteriovenous-fistula
#17
David Fulker, Bogdan Ene-Iordache, Tracie Barber
Arteriovenous fistulae (AVF) are the preferred choice of vascular access in hemodialysis patients; however, complications such as stenosis can lead to access failure or recirculation, which reduces dialysis efficiency. This study utilized computational fluid dynamics on a patient-specific radiocephalic fistula under hemodialysis treatment to determine the dynamics of access recirculation and identify the presence of disturbed flow. Metrics of transverse wall shear stress (transWSS) and oscillatory shear index (OSI) were used to characterize the disturbed flow acting on the blood vessel wall, while a power spectral density (PSD) analysis was used to calculate the any turbulence within the access...
March 1, 2018: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29068124/percutaneous-transcatheter-aortic-valve-replacement-induces-femoral-artery-shrinkage-angiographic-evidence-and-predictors-for-a-new-side-effect
#18
Osama Shoeib, Francesco Burzotta, Cristina Aurigemma, Lazzaro Paraggio, Fausta Viccaro, Italo Porto, Antonio Maria Leone, Piergiorgio Bruno, Carlo Trani
OBJECTIVES: We sought to investigate the possible impact of transaortic valve replacement (TAVR) on common femoral artery (CFA) integrity as assessed by angiography. BACKGROUND: CFA represents the most adopted access for TAVR but various degrees of vascular damage may be induced by the procedure. METHODS: Patients underwent percutaneous transfemoral TAVR who had both pre- and post-TAVR access-site angiography were retrospectively selected...
October 25, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29062822/stand-alone-anterior-lumbar-interbody-fusion-complications-and-perioperative-results
#19
Rodrigo Amaral, Ronaldo Ferreira, Luis Marchi, Rubens Jensen, Joes Nogueira-Neto, Luiz Pimenta
OBJECTIVES: Historically, anterior lumbar interbody fusion (ALIF) was related to high rates of intraoperative complications and adverse events related to interbody devices. In recent decades, there have been technical adjustments, and cages that are more suitable have emerged. The aim of this study is to evaluate the efficacy and complication rate of the use of stand-alone mini-ALIF using a self-locking cage. METHODS: Retrospective single center study. Inclusion criteria: retroperitoneal mini-ALIF for single-level fusion (L5S1); self-locking cage; DDD/stenosis and grade I spondylolisthesis...
September 2017: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/29062749/transcatheter-aortic-valve-implantation-in-nonagenarians-selectively-feasible-or-extravagantly-futile
#20
Antonis S Manolis, Antonis A Manolis
A growing number of nonagenarians is recorded as life expectancy increases. Unfortunately, this extreme-aged group is plagued by increased prevalence of aortic stenosis amidst a higher occurrence of comorbidities that pose dilemmas to cardiologists and cardiac surgeons when having to choose a conservative or interventional treatment modality, and a surgical or transcatheter aortic valve implantation (TAVI) approach. TAVI is an expensive procedure, which also confers a higher mortality and morbidity risk in nonagenarians, compared to younger patients...
September 2017: Annals of Cardiothoracic Surgery
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