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Intravascular stent

Konstantinos C Koskinas, Masato Nakamura, Lorenz Räber, Roisin Colleran, Kazushige Kadota, Davide Capodanno, William Wijns, Takashi Akasaka, Marco Valgimigli, Giulio Guagliumi, Stephan Windecker, Robert A Byrne
BACKGROUND: This study evaluated the views of the cardiology community on the clinical use of coronary intravascular imaging (IVI).Methods and Results:A web-based survey was distributed to 31,893 individuals, with 1,105 responses received (3.5% response rate); 1,010 of 1,097 respondents (92.1%) self-reported as interventional cardiologists, 754 (68.7%) with >10 years experience. Overall, 96.1% had personal experience with IVI (95.5% with intravascular ultrasound [IVUS], 69.8% with optical coherence tomography [OCT], and 7...
March 15, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
Konstantinos C Koskinas, Masato Nakamura, Lorenz Räber, Roisin Colleran, Kazushige Kadota, Davide Capodanno, William Wijns, Takashi Akasaka, Marco Valgimigli, Giulio Guagliumi, Stephan Windecker, Robert A Byrne
AIMS: This study evaluated the views of the cardiology community on the clinical use of coronary intravascular imaging (IVI). METHODS AND RESULTS: A web-based survey was distributed to 31,893 individuals, with 1,105 responses received (3.5% response rate); 1,010 of 1,097 respondents (92.1%) self-reported as interventional cardiologists, 754 (68.7%) with >10 years experience. Overall, 96.1% had personal experience with IVI (95.5% with intravascular ultrasound [IVUS], 69...
March 15, 2018: EuroIntervention
Maohuan Lin, Zizhuo Su, Jiajie Li, Ruqiong Nie, Jingfeng Wang
A honeycomb-like structure (HLS) is a rare entity encountered in catheterization laboratories. The etiology of HLS remains elusive. Moreover, no treatment guideline or consensus for HLS has been proposed. However, with more frequent adoption of intravascular imaging modalities, the number of cases of HLS is rising. We herein present a case of HLS and summarize previous reports in the literature with the aim of providing useful information for interventional cardiologists and promoting further research.
January 1, 2018: Journal of International Medical Research
Mikiya Beppu, Yohei Mineharu, Hirotoshi Imamura, Hidemitsu Adachi, Chiaki Sakai, Shoichi Tani, Koichi Arimura, So Tokunaga, Nobuyuki Sakai
BACKGROUND AND PURPOSE: Although in-stent protrusion is a potential risk factor of thromboembolism following carotid artery stenting, the correlation between in-stent protrusion and postoperative ipsilateral stroke has not been well examined. MATERIALS AND METHODS: We retrospectively reviewed 342 consecutive carotid artery lesions in 319 patients who underwent carotid artery stenting between April 2008 and April 2015. After excluding cases with carotid artery dissection and acute occlusion, 301 lesions in total of 277 patients were included in the analysis...
March 7, 2018: Journal of Neuroradiology. Journal de Neuroradiologie
Joseph M DeCunha, Shirin A Enger
PURPOSE: Renewed interest is being expressed in intravascular brachytherapy (IVBT). A number of unresolved issues exist in the discipline. Providing a homogeneous and adequate dose to the target remains difficult in IVBT. The guidewire that delivers the device to the target, arterial plaques, and stent struts are all known to reduce the dose delivered to target. The viability and efficacy of a proposed IVBT delivery system designed to resolve the issue of guidewire attenuation is evaluated and compared to that of a popular and commercially available IVBT device...
March 5, 2018: Brachytherapy
Tadatsugu Gamou, Kenji Sakata, Hidenobu Terai, Yuki Horita, Masatoshi Ikeda, Masanobu Namura, Masakazu Yamagishi, Masa-Aki Kawashiri
OBJECTIVES: To investigate the impact of stent deformity induced by final kissing balloon technique (KBT) for coronary bifurcation lesions on in-stent restenosis (ISR). BACKGROUND: In experimental models, the detrimental effects of KBT have been clearly demonstrated, but few data exists regarding the impact of proximal stent deformity induced by KBT on clinical outcomes. METHODS: We examined 370 coronary lesions where intravascular ultrasound (IVUS)-guided second-generation drug-eluting stent (DES) implantation for coronary bifurcation lesions was performed...
March 6, 2018: Journal of Interventional Cardiology
Sarifuddin, Prashanta Kumar Mandal
Angioplasty with drug-coated balloons (DCBs) using excipients as drug carriers is emerging as a potentially viable strategy demonstrating clinical efficacy and proposing additional compliance for the treatment of obstructive vascular diseases. An attempt is made to develop an improved computational model where attention has been paid to the effect of interstitial flow, that is, plasma convection and internalization of bound drug. The present model is capable of capturing the phenomena of the transport of free drug and its retention, and also the internalization of drug in the process of endocytosis to atherosclerotic vessel of heterogeneous tissue composition comprising of healthy tissue, as well as regions of fibrous cap, fibro-fatty, calcified and necrotic core lesions...
March 5, 2018: Cardiovascular Engineering and Technology
Anthony N Hage, Ravi N Srinivasa, Steven D Abramowitz, Joseph J Gemmete, Shilpa N Reddy, Jeffrey Forris Beecham Chick
PURPOSE: To report global iliocaval stent reconstruction practices by interventionalists. MATERIALS AND METHODS: A 45-question survey focusing on iliocaval stent reconstruction evaluation was distributed through the Open Forum and Venous Disease Service Line of the Society of Interventional Radiology Connect website from June 20, 2017 until September 7, 2017 and the Cardiovascular and Interventional Radiological Society of Europe electronic newsletter on August 11, 2017...
February 24, 2018: Annals of Vascular Surgery
Hunaina Shahab, Bilal Hussain, Nasir Rahman, Fateh Ali Tipoo Sultan
The ability of drug-eluting stent (DES) to inhibit intimal proliferation has resulted in a massive increase in their usage over the years. However, it is known that the application of DES can alter the normal cascade of vascular healing, resulting in delayed endothelialisation with risk of vascular complications. Coronary artery aneurysms (CAN) are defined as more than 50% dilatation of the coronary artery compared to the reference vessel diameter with the reported incidence after percutaneous intervention (PCI) being only around 0...
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Maria Ceja-Rodriguez, Augustus Realyvasquez, Joseph Galante, William C Pevec, Misty Humphries
OBJECTIVE: Intravascular ultrasound (IVUS) has been recommended as an adjunct to thoracic endovascular aortic repair (TEVAR) as Computed Tomography (CT) in injured patients may inaccurately determine the true aortic diameter. We hypothesize that CT and IVUS offer discordant measurements of aortic diameter in trauma patients, and that each modality may result in different graft size estimates for TEVAR. METHODS: Patients treated by TEVAR for blunt aortic injury from June 2011 to 2016 were reviewed...
February 23, 2018: Annals of Vascular Surgery
Sameer Lakha, C Y Maximilian Png, Kevin Chun, Windsor Ting
OBJECTIVE: Vascular manifestations including pulmonary artery aneurysms and venous thrombosis are seen in up to 14% of patients with Behcet's Disease. We report a patient who had recurrent deep vein thrombosis (DVT) as the presenting symptom of Behcet's Disease. METHODS: A 19-year-old male who presented with acute iliofemoral DVT, confirmed by intravascular ultrasound (IVUS) and venogram. May-Thurner syndrome was also observed. Repeated catheter-based pharmaco-mechanical thrombolysis, thrombectomy and subsequent iliac vein stenting were performed...
February 23, 2018: Annals of Vascular Surgery
Esther Bae, Trung Duong Vo
Atherosclerotic carotid stenosis associated with a mobile carotid plaque (MCP) is a relatively rare entity, observed in less than 1 in 2000 carotid ultrasound examinations. As such, the natural history of this lesion and risk for neurological thromboembolic complications are not well defined. Small case reports have described treatment varying from medical management with anticoagulation, to carotid endarterectomy, and more recently, carotid stenting. We present two patients with carotid stenosis associated with a mobile carotid plaque...
February 22, 2018: Annals of Vascular Surgery
Ahmad Alsheekh, Anil Hingorani, Afsha Aurshina, Pavel Kibrik, Natalie Marks, Yuriy Ostrozhynskyy, Enrico Ascher
Background There have been well-documented implications of race/ethnicity on the outcome of various vascular diseases, yet there are limited data on risk factors and outcome of lower limb swelling. While many patients improve with endovenous therapy (thermal ablation or iliac vein stenting), some patients' symptoms persist. The goal of this study was to identify clinical factors including race/ethnicity related to persistent leg swelling after treatment with both iliac vein stenting and thermal ablation. Methods From February 2012 to February 2014, this observational study analyzed data for 173 patients with chronic venous insufficiency who underwent both iliac vein stent placement as well as thermal ablation (radiofrequency ablation or endovenous laser ablation)...
January 1, 2018: Vascular
Anne Venkata Ganeshkumar, Rushikesh Sambhaji Patil, Irfan Khan Hamid
BACKGROUND AND OBJECTIVE: Studies conducted across the world have reported that the rates of major adverse cardiac events (MACE) following the use of bioresorbable vascular scaffolds (BVS) are comparable to that noted with traditional drug eluting stents (DES). However, there is limited data on the immediate and medium-term clinical outcomes following the use of the Absorb BVS (Abbott Vascular, Santa Clara, SA) in the Indian context. This study was conducted to determine real-world evidence on the immediate and medium-term clinical outcomes in all patients undergoing percutaneous coronary intervention (PCI) with the Absorb BVS...
January 2018: Indian Heart Journal
Daoyuan Si, Guohui Liu, Yaliang Tong, Yuquan He
RATIONALE: Inadequate stent expansion due to rigid calcified may result in restenosis lesions, but the available options are limited. PATIENT CONCERNS: We report a case via the trans-radial approach of the severely underexpanded freshly deployed stent due to heavily calcified plaques DIAGNOSES:: Coronary angiography revealed that there was no adequate expansion of the freshly deployed stent. INTERVENTIONS: Under the guide of intravascular ultrasound (IVUS), rotational atherectomy (RA) successfully ablated the stent layers and the protruding calcified plaque...
February 2018: Medicine (Baltimore)
Laura Petruescu, Fabien Picard, Alain Cariou, Olivier Varenne
A 63-year-old man presented with an out-of-hospital cardiac arrest. The coronary angiogram with intravascular imaging was performed and showed a mid-left anterior descending artery atherosclerotic cap rupture with thrombus burden treated with drug-eluting stent (DES) implantation. During the hospitalisation in the intensive care unit, the patient experienced recurrent ventricular fibrillations and asystole with transient ST-segment elevation in the inferior leads with normal coronary angiography. A methylergonovine provocative test was therefore performed and showed an occlusive right coronary artery (RCA) spasm...
February 8, 2018: BMJ Case Reports
Csilla Celeng, Bart de Keizer, Béla Merkely, Pim de Jong, Tim Leiner, Richard A P Takx
PURPOSE OF REVIEW: With this review, we aim to summarize the role of positron emission tomography (PET) and near-infrared fluorescence imaging (NIRF) in the detection of atherosclerosis. RECENT FINDINGS: 18 F-FDG is an established measure of increased macrophage activity. However, due to its low specificity, new radiotracers have emerged for more specific detection of vascular inflammation and other high-risk plaque features such as microcalcification and neovascularization...
February 12, 2018: Current Cardiology Reports
Masahiko Noguchi, Kotaro Obunai, Yu Fukui, Hiroshi Okumura, Hiroyuki Watanabe
We report a case of percutaneous coronary intervention for spontaneous multi-vessel coronary dissection including the left main coronary artery. This case suggests that intracoronary imaging is useful for understanding the complex anatomy and for choosing the appropriate management for effective revascularization. Furthermore, cutting balloon angioplasty prior to stenting is useful for preventing the longitudinal extension of the intramural hematoma and avoiding unnecessary stent implantation.
February 9, 2018: Internal Medicine
Masakazu Yasuda, Carmen Spaccarotella, Annalisa Mongiardo, Salvatore De Rosa, Daniele Torella, Ciro Indolfi
RATIONALE: Embolization of a deployed stent is a rare complication and its mechanism remains unclear in most cases. PATIENT CONCERNS: A 52-year-old man underwent coronary angiography for effort angina, revealing an 80% stenosis of the proximal left anterior descending (LAD) involving the distal left main (LM). After luminal sizing with intravascular ultrasound two drug-eluting stents were deployed (5.0 × 12 mm and 3.5 × 15 mm) to cover the LM-LAD lesion...
December 2017: Medicine (Baltimore)
Soo Buem Cho, Ho Cheol Choi, EunJin Bae, Tae Jin Park, Hye Jin Baek, Sung Eun Park, Kyeong Hwa Ryu, Jin Il Moon, Bo Hwa Choi, Kyungsoo Bae, Kyung Nyeo Jeon
RATIONALE: Thrombosis due to anastomotic site stenosis is the most common complication in patients with brachio-axillary arteriovenous graft (AVG). Intravascular stent placement may play a special role in the salvage of dialysis grafts that have been previously performed percutaneous angioplasty or surgical procedure on the graft. Herein, we applied a novel stent named Supera which has a high degree of flexibility and resistance to external compression for treating a patient with recurrent venous anastomotic stenosis of brachio-axillary AVG...
December 2017: Medicine (Baltimore)
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