keyword
MENU ▼
Read by QxMD icon Read
search

Vascular stent

keyword
https://www.readbyqxmd.com/read/29781855/improving-senescent-wound-healing-with-local-and-systemic-therapies
#1
Caroline Szpalski, Parag Butala, Meredith T Vandegrift, Denis Knobel, Robert J Allen, Pierre B Saadeh, Stephen M Warren
The population is aging, and the prevalence of chronic wounds is increasing. Because neovascularization is essential for tissue repair and both local and systemic factors affect new blood vessel formation, we hypothesize that altering either pathway would reciprocally enhance wound healing in the aged. To test this hypothesis, p53 was locally suppressed and endothelial progenitor cells (EPCs) were systemically mobilized in a murine model of senescent wound healing.Bilateral 6-mm full-thickness stented wounds were made on the dorsum of Zmpste24 mice...
May 17, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29778608/technical-success-and-long-term-results-with-excluder-c3-endoprosthesis-in-narrow-aortic-biforcations-first-italian-multicentre-experience
#2
Gian Franco Veraldi, Luca Mezzetto, Filippo Vaccher, Lorenzo Scorsone, Stefano Bonvini, Igor Raunig, Valentina Wassermann, Sebastiano Tasselli
PURPOSE: This study aims at evaluating technical success and long-term results using Gore Excluder/C3 endoprosthesis in patients with narrow aortic bifurcation (NAB, inner-inner aortic diameter <18mm). METHODS: Clinical and anatomical data were collected retrospectively from patients treated in two high-volume Italian vascular centres between 2005 and 2017. A total of 1325 EVAR procedures were performed: 195 involved Excluder/C3 Gore endoprosthesis. 141 patients had a regular aortic bifurcation (RAB, maximum inner-inner diameter ≥ 18mm), while 54 presented NAB (< 18mm)...
May 17, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29778598/relevance-of-antiplatelet-therapy-duration-after-stent-assisted-coil-embolization-for-unruptured-intracranial-aneurysms
#3
Tackeun Kim, Chang Hyeun Kim, Si-Hyuck Kang, Seung Pil Ban, O-Ki Kwon
BACKGROUND: The optimal duration of dual antiplatelet therapy (DAPT) for preventing delayed thromboembolic events (DTEs) remains unclear. We aimed to determine whether longer DAPT provides improved protection against delayed DTEs. METHODS: This retrospective cohort study included 507 stent-assisted coil embolization procedures using a single stent for unruptured intracranial aneurysms. We performed coarsened exact matching according to the duration of maintenance DAPT...
May 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29777839/-mesenteric-steal-physiology-as-a-cause-of-claudication-and-chronic-mesenteric-ischemia
#4
Aleem K Mirza, J Michael Bacharach
Aortoiliac occlusive disease (AOID) results in varying degrees of pelvic and lower extremity arterial insufficiency. Treatment approach has evolved and endovascular therapies are being successfully reported for high-grade lesion. However, Trans Atlantic Inter-Society Consensus (TASC) D often necessitates open revascularization. Disease limited to the infrarenal segment does not typically affect intestinal perfusion in the absence of visceral aortic or mesenteric vessel involvement. Chronic mesenteric ischemia most commonly occurs due to atherosclerotic disease of two or three of the mesenteric vessels...
May 16, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29775814/composite-self-expanding-bioresorbable-prototype-stents-with-reinforced-compression-performance-for-congenital-heart-disease-application-computational-and-experimental-investigation
#5
Fan Zhao, Wen Xue, Fujun Wang, Laijun Liu, Haoqin Shi, Lu Wang
Stents are vital devices to treat vascular stenosis in pediatric patients with congenital heart disease. Bioresorbable stents (BRSs) have been applied to reduce challenging complications caused by permanent metal stents. However, it remains almost a total lack of BRSs with satisfactory compression performance specifically for children with congenital heart disease, leading to importantly suboptimal effects. In this work, composite bioresorbable prototype stents with superior compression resistance were designed by braiding and annealing technology, incorporating poly (p-dioxanone) (PPDO) monofilaments and polycaprolactone (PCL) multifilament...
May 8, 2018: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29775656/peripheral-vascular-stent-infection-case-report-and-review-of-literature
#6
Greg H Whitcher, Daniel J Bertges, Mrinal Shukla
We describe a case of an infected popliteal artery stent with septic emboli presenting 6 years after peripheral vascular intervention for intermittent claudication. Management included resection of the stent and popliteal artery and revascularization by femoral-popliteal bypass with autogenous vein. This case demonstrates that peripheral stent infections can develop years after intervention. We performed an English language PUBMED literature review of arterial peripheral vascular stent infections on using the search term, "Non-coronary stent or stent graft infection from 1966 to present...
May 15, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29774807/robotic-pyelolithotomy-extended-pyelolithotomy-nephrolithotomy-and-anatrophic-nephrolithotomy
#7
Rabii Madi, Ashok Hemal
INTRODUCTION: We are a reporting on the indications, techniques, and limitations of robotic surgery in the management of renal stones disease. Robotic surgery is a good tool to manage large kidney and ureteral stones, particularly in patients with anatomic anomalies. We describe three techniques in managing staghorn kidney stones: robotic anatrophic nephrolithotomy, robotic pyelolithotomy, and robotic nephrolithotomy. MATERIAL AND METHODS: Robotic pyelolithotomy (RP) is ideal for patients with large renal pelvis and partial staghorn stone with a wide extra-renal pelvis...
May 2018: Journal of Endourology
https://www.readbyqxmd.com/read/29774173/role-of-interventional-radiology-in-the-management-of-peripheral-vascular-malformations-a-tertiary-care-center-experience
#8
Misbah Tahir, Muhammad Anees Mumtaz, Anum Sultan, Jawaid Iqbal, Raza Sayani
Peripheral vascular malformations (PVMs) represent a wide spectrum of vascular abnormalities occurring due to anomalous connections between arteries, veins, capillaries, and lymphatic channels at the microscopic level, in different combinations. They are rare and challenging to treat. Different operators may have different approaches based on their experience and expertise. Sclerotherapy either alone or in combination with embolization has been used as an independent method for the treatment of PVMs. Purpose The aim of this study is to assess the safety and efficacy of sclerotherapy and embolization, with or without surgery, for the treatment of peripheral vascular malformations, based on our approach...
March 16, 2018: Curēus
https://www.readbyqxmd.com/read/29772318/endovascular-management-of-a-large-persistent-sciatic-artery-aneurysm
#9
Tazo Inui, Andrew Picel, Andrew Barleben, John S Lane
The persistent sciatic artery (PSA) is a remnant of the fetal circulatory system that is preserved in less than 0.1% of the population. Up to 60% of patients with this vascular anomaly will go on to development of a PSA aneurysm (PSAA), which can produce a variety of symptoms including neuropathy, claudication, and acute limb-threatening ischemia. Historical management is by open operation and interposition grafting, which can be highly morbid. We describe successful management of a large, symptomatic PSAA by endovascular stent-grafting with intermediate term follow-up...
May 14, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29770610/arsenic-trioxide-coated-stent-is-an-endothelium-friendly-drug-eluting-stent
#10
Yinping Zhao, Ruolin Du, Tian Zhou, Dongchuan Yang, Yuhua Huang, Yi Wang, Junli Huang, Xiaoyi Ma, Fugui He, Juhui Qiu, Guixue Wang
An ideal vascular stent would both inhibit in-stent restenosis (ISR) and promote rapid re-endothelialization. In the current study, the performance of arsenic trioxide (ATO)-drug eluting stent (AES) is compared with the bare metal stent, poly-lactic-co-glycolic acid-coating metal stent, and rapamycin-drug eluting stent (RES). In vivo AES is shown to prevent neointimal hyperplasia more efficiently than the others when implanted into the carotid arteries of rabbits. Moreover, AES promotes endothelial cells proliferation and re-endothelialization more quickly than RES...
May 16, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29766010/single-stage-endovascular-treatment-of-a-penetrating-aortic-ulcer-with-a-concomitant-isolated-iliac-aneurysm
#11
Haidi Hu, Jianming Guo, Hualong Bai, Alan Dardik
Penetrating aortic ulcer (PAU) is an acute aortic syndrome that can proceed to life-threatening aortic dissection or even aortic rupture. Isolated iliac aneurysms are relatively rare and often asymptomatic due to their deep pelvic location but are frequently associated with high mortality with rupture. We report a case of a 68-year-old man with a symptomatic penetrating ulcer in the descending aorta and an asymptomatic right iliac aneurysm involving the common and internal iliac arteries. The patient was successfully treated by endovascular repair in a single-stage manner using stent grafts in the descending aorta and right common iliac artery after coil embolization of the right internal iliac artery...
December 2017: Aorta (Stamford, Conn.)
https://www.readbyqxmd.com/read/29765396/acute-in-stent-thrombosis-after-carotid-angioplasty-and-stenting-a-case-report-and-literature-review
#12
Wei Hu, Li Wang, GuoPing Wang
Background: Based on the results of a recent randomized controlled trial, carotid artery stenting (CAS) was regarded as a relatively safe, less invasive treatment of internal carotid artery stenosis. However, cerebral thromboembolic events are the most common complications of CAS. Especially acute stent thrombosis following CAS will be fatal without prompt diagnosis and revascularization. Case Report: We report a case of acute stent thrombosis in whom carotid revascularization was performed successfully via arterial thrombolysis and balloon postdilation...
April 2018: Interventional Neurology
https://www.readbyqxmd.com/read/29765390/preclinical-evaluation-of-the-nevatm-stent-retriever-safety-and-efficacy-in-the-swine-thrombectomy-model
#13
Arthur J Ulm, Tigran Khachatryan, Arthur Grigorian, Raul G Nogueira
Background: A novel stent retriever device with an enhanced radial force profile, enlarged offset openings, and a closed distal end has been developed. Objective: Evaluate the safety and effectiveness of the NeVaTM thrombectomy device in animal model of thrombo-occlusive disease. Materials and Methods: Seven swine were used in safety and efficacy studies. Thrombo-occlusive disease was modeled using 4 emboli morphologies; 2 distinct models of autologous whole blood thrombi, plasma-enriched thrombi, and Onyx® emboli...
April 2018: Interventional Neurology
https://www.readbyqxmd.com/read/29765072/notoginsenoside-r1-inhibits-vascular-smooth-muscle-cell-proliferation-migration-and-neointimal-hyperplasia-through-pi3k-akt-signaling
#14
Haihong Fang, Shilin Yang, Yingying Luo, Cheng Zhang, Yi Rao, Renjing Liu, Yulin Feng, Jun Yu
Restenosis caused by neointimal hyperplasia significantly decreases long-term efficacy of percutaneous transluminal angioplasty (PTA), stenting, and by-pass surgery for managing coronary and peripheral arterial diseases. A major cause of pathological neointima formation is abnormal vascular smooth muscle cell (VSMC) proliferation and migration. Notoginsenoside R1 (NGR1) is a novel saponin that is derived from Panax notoginseng and has reported cardioprotective, neuroprotective and anti-inflammatory effects...
May 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29760312/change-in-cerebral-blood-flow-after-palliative-percutaneous-angioplasty-and-timing-of-second-stage-carotid-artery-stenting-in-staged-angioplasty
#15
Hisashi Nagashima, Kazuhiro Hongo, Alhusain Nagm
The purpose of this study is to elucidate the hemodynamic changes after palliative angioplasty and the timing of second stage carotid artery stenting (CAS) in staged angioplasty for patients with severe hemodynamically compromised carotid artery stenosis. Among consecutive 111 patients with carotid artery stenosis, chronological changes in the cerebral blood flow of all 11 hemodynamically compromised patients treated with CAS were evaluated with single photon emission computed tomogram (SPECT) in each stage of the treatment...
May 11, 2018: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/29760284/unprotected-left-main-coronary-artery-disease-outcomes-of-treatment-with-second-generation-drug-eluting-stents-insight-from-the-fails-2-study
#16
Umberto Barbero, Rahim Kanji, Enrico Cerrato, Roberto Di Summa, Federico Conrotto, Hiroyoshi Kawamoto, Giuseppe Biondi-Zoccai, Sebastiano Gili, Fabrizio Ugo, Mario Iannaccone, Marco Gagliardi, Michele De Benedictis, Baldassarre Doronzo, Ferdinando Varbella, Maurizio D'Amico, Claudio Moretti, Antonio Colombo, Javier Escaned, Fabrizio D'Ascenzo
OBJECTIVE: To evaluate the outcome of patients undergoing PCI for unprotected left main coronary artery (ULMCA) disease with different drug-eluting stent (DES) types. BACKGROUND: Published literature suggests that second-generation DES options have differing vascular responses and outcomes, but there is a paucity of data in real-life patients in the LM setting. METHODS: This is a retrospective, multicenter study, including patients treated with a second-generation DES for ULMCA disease between 2007 and 2015...
May 15, 2018: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/29759946/assessment-of-structural-and-hemodynamic-performance-of-vascular-stents-modelled-as-periodic-lattices
#17
Purnendu K M Prithipaul, Michael Kokkolaras, Damiano Pasini
This work considers vascular stents with tubular geometry assumed to follow a periodic arrangement of repeating unit cells. Structural and hemodynamic metrics are presented to assess alternative stent geometries, each defined by the topology of the unit cell. Structural metrics include foreshortening, elastic recoil and radial stiffness, whereas hemodynamic performance is described by a wall shear stress index quantifying the impact of in-stent restenosis. A representative volume element (RVE) modelling approach is used, and results are compared to those obtained from full simulations of entire stents...
May 11, 2018: Medical Engineering & Physics
https://www.readbyqxmd.com/read/29758329/endovascular-treatment-for-a-true-aneurysm-of-the-transplant-renal-artery-using-noncovered-stent-assisted-coil-embolization
#18
Zhenjiang Li, Yiming Li, Zaiping Jing, Rui Feng
True degenerative aneurysms involving the donor renal artery after kidney transplantation are rather rare. The indications for operation and optimal therapy to combat this vascular complication are still not clear. Surgical revision has been used as a potential treatment; nonetheless, it has been associated with high risk of complications. In the present study, we report on a 31-year-old woman with a true aneurysm located at transplant renal artery after transplantation that was successfully managed with stent-assisted coil embolization, resulting in occluded aneurysm sac and well-preserved renal function without any complication...
May 11, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29755634/mitroflow-aortic-bioprosthesis-failure-in-type-b-aortic-dissection-preventive-left-main-stenting-in-transapical-transcatheter-aortic-valve-implantation-strategy
#19
Giovanni Alfonso Chiariello, Emmanuel Villa, Antonio Messina, Stefano Marwan Mangini, Massimiliano Rozzi, Margherita Dalla Tomba, Ornella Leonzi, Giovanni Troise
Mitroflow aortic prosthesis dysfunction in case of complex vascular disease is considered a challenging scenario. Because of the high risk for surgical reoperation and the presence of chronic aortic dissection originated from a calcified Kommerel diverticulum, we considered to perform a transapical valve-in-valve transcatheter aortic valve implantation (TAVI) procedure. Myocardial ischemia is a dreadful complication reported in valve-in-valve TAVI procedures, mainly in patients with degenerated Mitroflow aortic bioprostheses...
April 2018: Cardiology Research
https://www.readbyqxmd.com/read/29754850/biologic-drug-effect-and-particulate-embolization-of-drug-eluting-stents-versus-drug-coated-balloons-in-healthy-swine-femoropopliteal-arteries
#20
Sho Torii, Kazuyuki Yahagi, Hiroyoshi Mori, Emanuel Harari, Maria E Romero, Frank D Kolodgie, Brandt Young, Anthony Ragheb, Renu Virmani, Aloke V Finn
PURPOSE: To compare the drug effect in treated vessels and downstream effects in distal skeletal muscle of drug-coated balloons (DCBs) and drug-eluting stents (DESs) in a healthy preclinical swine model. MATERIALS AND METHODS: Four groups of treated iliofemoral arteries (percutaneous transluminal angioplasty [PTA]+DES, DCB+DES, DCB+bare metal stent [BMS], and DCB alone) of 12 healthy swine were assessed, with euthanasia at 30 days. Biological drug effect was evaluated using smooth muscle cell (SMC) loss score according to both depth and circumference as well a neointimal fibrin and medial proteoglycan scores which were compared between the 4 groups...
May 10, 2018: Journal of Vascular and Interventional Radiology: JVIR
keyword
keyword
102380
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"