keyword
MENU ▼
Read by QxMD icon Read
search

Intravascular ultrasound

keyword
https://www.readbyqxmd.com/read/28629625/what-exactly-regression-of-atherosclerosis-or-foreign-body-reaction-with-hyaline-arteriosclerosis-drives-transient-scaffolding-of-coronary-arteries-a-pooled-analysis-of-observational-absorb-studies-with-a-serial-multimodality-imaging-substudy-of-absorb-cohort
#1
Alexander N Kharlamov, John A Feinstein, John A Cramer, John A Boothroyd
OBJECTIVES: We aimed to estimate the trends of the artery remodeling after transient scaffolding. BACKGROUND: At least 2.62% reduction of the per cent atheroma volume (PAV) or plaque burden (PB) performed in ABSORB B trial at 60months. METHODS: The detailed multiple serial imaging evaluation was performed by intravascular ultrasound (IVUS) in comparison with quantitative coronary angiography (QCA), multislice CT (MSCT) and optical coherence tomography (OCT) thru 24months in the ABSORB cohort B1 trial (n=45) with the pooled analysis in ABSORB A and B trials (n=131)...
June 6, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28618193/introduction-of-color-flow-injection-test-to-confirm-intravascular-location-of-peripherally-placed-intravenous-catheters
#2
Nischal K Gautam, Kayla R Bober, Chunyan Cai
BACKGROUND: The incidence of infiltration and extravasation when using peripheral intravenous catheters is high in pediatric patients. Due to the lack of a gold standard test to confirm intravascular location of a peripherally placed intravenous catheter, we introduce a novel method, the color-flow injection test to assess the intravascular location of these catheters. For the color-flow injection test, 1 mL of normal saline was injected within 2 seconds in the distal intravenous catheter and changes in color-flow via ultrasonography were observed at the proximal draining veins...
June 15, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28615645/intravascular-forward-looking-ultrasound-transducers-for-microbubble-mediated-sonothrombolysis
#3
Jinwook Kim, Brooks D Lindsey, Wei-Yi Chang, Xuming Dai, Joseph M Stavas, Paul A Dayton, Xiaoning Jiang
Effective removal or dissolution of large blood clots remains a challenge in clinical treatment of acute thrombo-occlusive diseases. Here we report the development of an intravascular microbubble-mediated sonothrombolysis device for improving thrombolytic rate and thus minimizing the required dose of thrombolytic drugs. We hypothesize that a sub-megahertz, forward-looking ultrasound transducer with an integrated microbubble injection tube is more advantageous for efficient thrombolysis by enhancing cavitation-induced microstreaming than the conventional high-frequency, side-looking, catheter-mounted transducers...
June 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28608519/catheter-based-anatomic-and-functional-assessment-of-coronary-arteries-in-anomalous-aortic-origin-of-a-coronary-artery-myocardial-bridges-and-kawasaki-disease
#4
Athar M Qureshi, Hitesh Agrawal
Most diagnostic testing in patients with anomalous aortic origins of coronary arteries, myocardial bridges, and coronary artery changes after Kawasaki disease are performed with the use of noninvasive techniques. In some cases, however, further diagnostic information is needed to guide the clinician in treating these patients. In such instances, cardiac catheterization with invasive anatomic and functional testing is an invaluable tool. Moreover, interventional treatment in the cardiac catheterization laboratory may be performed in a small subset of these patients...
June 13, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28606023/over-expansion-of-drug-eluting-stents-in-patients-with-left-main-coronary-artery-disease-an-in%C3%A2-vivo-study
#5
Yicong Ye, Hao Qian, Ming Yang, Xueqing Zhu, Tianpeng Gan, Shuyang Zhang, Yong Zeng
Objective We aimed to determine the capacity of drug-eluting stent (DES) over-expansion in left main coronary artery disease. Methods Left main interventions with the largest available DES platforms (4.0 mm) and post-dilation performed with large non-compliant balloons (≥ 4.5 mm) were included. Maximal stent diameter (mm) and area (mm(2)) were measured using post-intervention intravascular ultrasound (IVUS). Stent diameter and area were calculated with the balloon diameter and inflation pressure. The diameter and area expansion indices were defined as follows: maximal/calculated stent diameter and maximal/calculated stent area, respectively...
January 1, 2017: Journal of International Medical Research
https://www.readbyqxmd.com/read/28600019/safety-and-efficacy-outcomes-of-second-generation-everolimus-eluting-stents-in-octogenarians-compared-to-non-octogenarians
#6
Hironori Kitabata, Takashi Kubo, Kazuya Mori, Yasunori Yamamoto, Manabu Kashiwagi, Yu Arita, Takashi Tanimoto, Takashi Akasaka
BACKGROUND: In patients ≥80 years of age, the use of second-generation cobalt-chromium everolimus-eluting stents (CoCr-EES) versus bare-metal stents has been shown to reduce myocardial infarction (MI) and target vessel revascularization (TVR) rates, without an increase in bleeding. However, safety and efficacy of CoCr-EES in octogenarians compared to younger populations are less certain. We aimed to compare the clinical outcomes between octogenarian and non-octogenarian patients undergoing percutaneous coronary intervention (PCI) with CoCr-EES...
June 1, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28592751/effect-of-ezetimibe-on-stabilization-and-regression-of-intracoronary-plaque%C3%A3-the-zipangu-study
#7
Yasunori Ueda, Takafumi Hiro, Atsushi Hirayama, Sei Komatsu, Hiroshi Matsuoka, Tadateru Takayama, Masaharu Ishihara, Takatoshi Hayashi, Satoshi Saito, Kazuhisa Kodama
BACKGROUND: Diminishing yellow color is associated with plaque stabilization. We assessed the hypothesis that a combination of ezetimibe and statin provides more effective plaque stabilization and regression than statin alone as assessed by plaque color.Methods and Results:Stable coronary artery disease patients (n=131) who underwent elective percutaneous coronary intervention and had yellow plaques were randomized to combination therapy (atorvastatin 10-20 mg and ezetimibe 10 mg/day; Group C) or statin monotherapy (atorvastatin 10-20 mg; Group M)...
June 8, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28590059/sympatholytic-effect-of-intravascular-atp-is-independent-of-nitric-oxide-prostaglandins-na-k-atpase-and-kir-channels-in-humans
#8
Christopher M Hearon, Jennifer C Richards, Mathew L Racine, Gary J Luckasen, Dennis G Larson, Michael J Joyner, Frank A Dinenno
Exercise and intravascular ATP elicit vasodilatation that is dependent on activation of inwardly rectifying potassium (KIR ) channels, with a modest reliance on nitric oxide (NO) and prostaglandin (PG) synthesis.  Both exercise and intravascular ATP attenuate sympathetic α-adrenergic vasoconstriction (sympatholysis). However, KIR channels, NO, PGs and Na(+) /K(+) -ATPase activity are not obligatory to observe sympatholysis during exercise. To further determine similarities between exercise and intravascular ATP, we tested the hypothesis that inhibition of KIR channels, NO and PG synthesis, and Na(+) /K(+) -ATPase, would not alter the ability of ATP to blunt α1 -adrenergic vasoconstriction...
June 7, 2017: Journal of Physiology
https://www.readbyqxmd.com/read/28584942/combined-ct-fluoroscopic-and-ivus-guidance-for-percutaneous-treatment-of-a-postsurgical-pseudoaneurysm-following-repair-of-ascending-thoracic-aortic-aneurysm
#9
Anastasia Hadjivassiliou, Joel Gagnon, Michael Janusz, Darren Klass
Thoracic aortic pseudoaneurysms are a recognized complication following aortic arch replacement. The established first line treatment is surgical repair; however, this may not be feasible in all patients. Percutaneous treatment of ascending thoracic pseudoaneurysms has been described as an alternative for nonsurgical candidates. Utilization of multimodality imaging can prove invaluable in minimizing the risk of potentially fatal intra-procedural complications. We present a case of successful embolization using computer tomography-guided direct percutaneous puncture of the pseudoaneurysm, with concomitant endovascular treatment under fluoroscopic and intravascular ultrasound guidance in a patient with challenging vascular anatomy...
June 5, 2017: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/28579688/intravascular-ultrasound-guided-intervention-for-may-thurner-syndrome
#10
REVIEW
Bill S Majdalany, Minhaj S Khaja, David M Williams
No abstract text is available yet for this article.
June 2017: Seminars in Interventional Radiology
https://www.readbyqxmd.com/read/28571031/perimortem-demonstration-and-treatment-of-recipient-to-donor-transfusion-in-monochorionic-diamniotic-twin-gestation
#11
Jessica Parrott, Tricia Schwartz, Tracy Cowles, Marium Holland, Carl P Weiner
Twin-twin transfusion syndrome is a complication of monochorionic-diamniotic placentation. Should one twin die, ≈30% of co-twins will also die, and if they survive, ≈30% experience severe morbidity rates, each believed secondary to hemorrhage of the co-twin into the deceased twin. We report apparently the first ultrasound-documented case of perimortem hemorrhage in twin-twin transfusion syndrome and its treatment by emergent ultrasound-guided percutaneous cord occlusion followed by percutaneous fetal intravascular transfusion...
June 2, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28568890/myocardial-mass-contributes-to-the-discrepancy-between-anatomic-stenosis-severity-assessed-by-intravascular-ultrasound-and-fractional-flow-reserve-in-intermediate-lesions-of-the-coronary-artery
#12
Myeong-Ho Yoon, Seung-Jea Tahk, Hong-Seok Lim, Hyoung-Mo Yang, Kyoung-Woo Seo, Byoung-Joo Choi, So-Yeon Choi, Gyo-Seung Hwang, Jin-Sun Park, Joon-Han Shin
OBJECTIVES: The present study investigated the major contributors to the discrepancy between the minimal lumen area (MLA) and fractional flow reserve (FFR). BACKGROUND: There was considerable discrepancy between MLA or diameter stenosis (DS) and FFR. METHODS: We enrolled 744 patients with intermediate stenoses of the left anterior descending artery (LAD). Summed epicardial coronary artery length distal to the target stenosis was obtained from each longest view of the vessels on the coronary angiograms...
June 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28567351/regression-of-coronary-atherosclerosis-with-infusions-of-the-high-density-lipoprotein-mimetic-cer-001-in-patients-with-more-extensive-plaque-burden
#13
Yu Kataoka, Jordan Andrews, MyNgan Duong, Tracy Nguyen, Nisha Schwarz, Jessica Fendler, Rishi Puri, Julie Butters, Constance Keyserling, John F Paolini, Jean-Louis Dasseux, Stephen J Nicholls
BACKGROUND: CER-001 is an engineered pre-beta high-density lipoprotein (HDL) mimetic, which rapidly mobilizes cholesterol. Infusion of CER-001 3 mg/kg exhibited a potentially favorable effect on plaque burden in the CHI-SQUARE (Can HDL Infusions Significantly Quicken Atherosclerosis Regression) study. Since baseline atheroma burden has been shown as a determinant for the efficacy of HDL infusions, the degree of baseline atheroma burden might influence the effect of CER-001. METHODS: CHI-SQUARE compared the effect of 6 weekly infusions of CER-001 (3, 6 and 12 mg/kg) vs...
June 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28566599/simultaneous-idiopathic-dissections-of-the-coronary-and-superior-mesenteric-arteries
#14
Masato Nishi, Daisuke Sueta, Takashi Miyazaki, Kenji Sakamoto, Eiichiro Yamamoto, Yasuhiro Izumiya, Kenichi Tsujita, Sunao Kojima, Koichi Kaikita, Osamu Ikeda, Yasuyuki Yamashita, Seiji Hokimoto
A 49-year-old man complained of sudden upper abdominal pain but was not given a definitive diagnosis. The day after he was discharged, he noticed left chest pain. An in-depth electrocardiogram indicated acute myocardial infarction, and emergent coronary angiography revealed 99% stenosis of his left coronary artery. An intravascular ultrasound revealed spontaneous coronary artery dissection (SCAD), and the lesion was successfully stented. In an atherosclerosis screening, superior mesenteric artery dissection (SMAD) was confirmed, after which the lesion was successfully stented...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28566597/intravascular-images-of-coronary-stenosis-with-multiple-channels-in-a-patient-with-antiphospholipid-syndrome-the-optical-coherence-tomography-findings
#15
Shigenori Ito, Takahiro Hasuo
Intravascular images of coronary stenosis by antiphospholipid syndrome (APS) would be beneficial to understand the mechanism of this disease. A 59-year-old woman with APS/systemic lupus erythematosis (SLE) underwent emergent coronary angiography which revealed stenosis with micro channels in the proximal left anterior descending artery. According to optical coherence tomography (OCT), the central lumen was surrounded by a thick septum with a homogenous and high intensity. Multiple small channels existed near the vessel wall with diffuse intimal hyperplasia...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28555389/plaque-characteristics-and-inflammatory-markers-for-the-prediction-of-major-cardiovascular-events-in-patients-with-st-segment-elevation-myocardial-infarction
#16
Ae-Young Her, Kyoung Im Cho, Gillian Balbir Singh, Dae Seong An, Young-Hoon Jeong, Bon-Kwon Koo, Eun-Seok Shin
To investigate the clinical utility of culprit plaque characteristics and inflammatory markers for the prediction of future cardiovascular events in patients with ST-segment elevation myocardial infarction (STEMI) with successful drug-eluting stent (DES) implantation. We evaluated 172 STEMI patients with successful primary percutaneous coronary intervention (PCI) with DES using pre-PCI high-sensitivity C-reactive protein (hs-CRP), neutrophil-to-lymphocyte ratio (NLR) and pre-PCI intravascular ultrasound virtual histology (IVUS-VH) of culprit lesions...
May 29, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28539596/intravascular-ultrasound-guidance-improves-the-long-term-prognosis-in-patients-with-unprotected-left-main-coronary-artery-disease-undergoing-percutaneous-coronary-intervention
#17
Jian Tian, Changdong Guan, Wenyao Wang, Kuo Zhang, Jue Chen, Yongjian Wu, Hongbing Yan, Yanyan Zhao, Shubin Qiao, Yuejin Yang, Gary S Mintz, Bo Xu, Yida Tang
This study compared the long term outcomes in patients with unprotected left main coronary artery (LMCA) disease who underwent stenting under the guidance of intravascular ultrasound (IVUS) or conventional angiography at a large single center. The primary outcome was the composite of all-cause death and myocardial infarction (MI) at 3 years. Target vessel revascularization (TVR) at 3 years was one of the secondary outcomes. Between January 2004 and December 2011, a total of 1,899 patients who underwent IVUS-guided (n = 713, 37...
May 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28539300/-clinical-outcomes-of-intravascular-ultrasound-in-guiding-the-treatment-of-non-left-main-intermediate-coronary-lesions-for-patients-with-acute-coronary-syndrome
#18
Hong-Bin Liang, Qian Guo, Xin-Lu Zhang, Xue-Wei Liu, Yong-Zhen Tang, Wei-Yu Chen, Yu-Qing Hou, Jian-Cheng Xiu
OBJECTIVE: To evaluate the long-term clinical outcomes of intravascular ultrasound(IVUS) in guiding the treatment of non-left main intermediate coronary lesions for patients of acute coronary syndrome (ACS). METHODS: A total of 25 patients with intermediate coronary lesions(stenosis of 40%-70%) confirmed by coronary angiography were performed with IVUS. When MLA≥4 mm(2), we deferred the PCI treatment and performed optimal medical treatment (OMT). The patient were followed up for 12 month...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28538372/detection-of-very-delayed-coronary-stent-fracture-using-a-novel-fluoroscopic-stent-visualization-technique-against-intravascular-ultrasound-a-case-series
#19
Feifei Yang, Liwei Zhang, Dangsheng Huang, Dong Shen, Yongjiang Ma, Minjun Xiong, Chunhong Zhang, Miao Tian
RATIONALE: Stent fracture has received increased concern as it may be an important risk factor for late stent failure, intravascular ultrasound (IVUS) is always recommended to confirm the diagnosis of stent fracture. StentBoost can detect stent fractures more easily due to the enhanced stent strut visibility, compared with coronary angiography (CAG). Few cases were reported to compare the advantages of StentBoost vis-à-vis IVUS in detecting stent fracture. PATIENT CONCERNS: We reported 3 cases that were confirmed the diagnosis of stent fracture by StentBoost, which were preliminarily suspected by angiography, including one case that lacked the IVUS evidence of stent fracture...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28531282/near-infrared-spectroscopy-derived-lipid-core-burden-index-predicts-adverse-cardiovascular-outcome-in-patients-with-coronary-artery-disease-during-long-term-follow-up
#20
Anne-Sophie Schuurman, Maxime Vroegindewey, Isabella Kardys, Rohit M Oemrawsingh, Jin M Cheng, Sanneke de Boer, Hector M Garcia-Garcia, Robert-Jan van Geuns, Evelyn S Regar, Joost Daemen, Nicolas M van Mieghem, Patrick W Serruys, Eric Boersma, K Martijn Akkerhuis
Aims: Near-infrared spectroscopy (NIRS) is able to quantify cholesterol within coronary arteries by the lipid core burden index (LCBI). We studied the prognostic value of NIRS-derived LCBI in patients with coronary artery disease (CAD) for adverse cardiac outcome during long-term follow-up. Methods and results: During 2009-2013, NIRS was performed in a non-culprit artery of 275 patients undergoing coronary angiography for acute coronary syndrome (ACS) or stable angina...
May 20, 2017: European Heart Journal
keyword
keyword
3447
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"