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https://www.readbyqxmd.com/read/29053913/morphological-changes-of-the-internal-carotid-artery-prevalence-and-characteristics-a-clinic-and-ultrasonographic-study-in-a-series-of-19-804-patients-over-25-years-old
#1
Hugo F G Martins, Alexandra Mayer, Paulo Batista, Fátima Soares, Vanessa Almeida, Ana Júlia Pedro, Victor Oliveira
BACKGROUND: Morphological changes of the internal carotid arteries (McICA) are frequently found during cervical ultrasound studies. However, McICA's etiology remains controversial. During this study, the prevalence and demographic characteristics of McICA such as kinking, coiling or looping, identified by Doppler ultrasound, were analysed and its relationship with vascular risk factors and stroke was assessed. METHODS: A retrospective study was performed by analysing 19,804 patients between Jan 2000 and Jun 2012 who were submitted to cervical ultrasonographic study...
October 20, 2017: European Journal of Neurology: the Official Journal of the European Federation of Neurological Societies
https://www.readbyqxmd.com/read/29053072/quantitative-assessment-of-changes-in-hemodynamics-of-the-internal-carotid-artery-after-bypass-surgery-for-moyamoya-disease
#2
Fengping Zhu, Yi Qian, Bin Xu, Yuxiang Gu, Kaavya Karunanithi, Wei Zhu, Liang Chen, Ying Mao, Michael K Morgan
OBJECTIVE Although intracranial vessel remodeling has been observed in moyamoya disease, concerns remain regarding the effect of bypass surgery on hemodynamic changes within the internal carotid artery (ICA). The authors aimed to quantify the surgical effect of bypass surgery on bilateral ICAs in moyamoya disease and to estimate pressure drop (PD) along the length of the ICA to predict surgical outcomes. METHODS Records of patients who underwent bypass surgery for treatment of moyamoya disease and in whom flow rates were obtained pre- and postsurgery by quantitative MR angiography were retrospectively reviewed...
October 20, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29050824/in-vivo-repeatability-of-the-pulse-wave-inverse-problem-in-human-carotid-arteries
#3
Matthew McGarry, Pierre Nauleau, Iason Apostolakis, Elisa Konofagou
Accurate arterial stiffness measurement would improve diagnosis and monitoring for many diseases. Atherosclerotic plaques and aneurysms are expected to involve focal changes in vessel wall properties; therefore, a method to image the stiffness variation would be a valuable clinical tool. The pulse wave inverse problem (PWIP) fits unknown parameters from a computational model of arterial pulse wave propagation to ultrasound-based measurements of vessel wall displacements by minimizing the difference between the model and measured displacements...
September 27, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29046974/stress-echocardiography-in-stable-coronary-artery-disease
#4
REVIEW
Sothinathan Gurunathan, Roxy Senior
PURPOSE OF REVIEW: Stress echocardiography (SE) is a well-established technique for the diagnosis and risk stratification of patients with known or suspected coronary artery disease (CAD). This review article summarizes the status of SE in CAD, including testing protocols, clinical efficacy and current use of newer technologies: myocardial perfusion, strain imaging, three-dimensional echocardiography and adjunctive carotid ultrasonography. RECENT FINDINGS: Recent major findings in SE include the clinical value of myocardial perfusion imaging in multicentre studies, as well as when added to left ventricular (LV) wall motion assessment in clinical service...
October 18, 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/29046642/cooperative-oxygen-sensing-by-the-kidney-and-carotid-body-in-blood-pressure-control
#5
Daniela Patinha, Wioletta Pijacka, Julian F R Paton, Maarten P Koeners
Oxygen sensing mechanisms are vital for homeostasis and survival. When oxygen levels are too low (hypoxia), blood flow has to be increased, metabolism reduced, or a combination of both, to counteract tissue damage. These adjustments are regulated by local, humoral, or neural reflex mechanisms. The kidney and the carotid body are both directly sensitive to falls in the partial pressure of oxygen and trigger reflex adjustments and thus act as oxygen sensors. We hypothesize a cooperative oxygen sensing function by both the kidney and carotid body to ensure maintenance of whole body blood flow and tissue oxygen homeostasis...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29045466/factors-predicting-cardiovascular-events-in-chronic-kidney-disease-patients-role-of-subclinical-atheromatosis-extent-assessed-by-vascular-ultrasound
#6
José M Valdivielso, Angels Betriu, Montserrat Martinez-Alonso, David Arroyo, Marcelino Bermudez-Lopez, Elvira Fernandez
Patients with chronic kidney disease (CKD) have an increased incidence of cardiovascular events (CVE). The contribution of subclinical atheromatosis extent, including femoral arteries, to CVE in CKD patients has not been investigated. In this paper, we examine the prognostic value of subclinical atheromatosis extent, assessed as the number of arterial territories with plaque, in predicting the incidence of major and minor CVE. The NEFRONA is a multicenter, prospective cohorts study that recruited 2445 CKD subjects and 559 controls, free from previous cardiovascular disease, in 81 medical centers across Spain...
2017: PloS One
https://www.readbyqxmd.com/read/29044926/optical-coherence-tomography-guided-carotid-artery-stent-procedure-technique-and-potential-applications
#7
Suhail Dohad, Alexander Zhu, Sandeep Krishnan, Frances Wang, Serena Wang, Justin Cox, Timothy D Henry
OBJECTIVES: To (1) present a guide on how to perform optical coherence tomography (OCT) in carotid artery stenting (CAS), to (2) highlight several instructive cases illustrating OCT-guidance as an interventional strategy, and to (3) present the largest case-series of OCT-guided CAS performed in North America, demonstrating its feasibility as an imaging modality in this setting. BACKGROUND: OCT is an intravascular imaging method that captures images with an axial resolution 10 times higher than intravascular ultrasound...
October 16, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29044294/serum-levels-of-anti-pon1-and-anti-hdl-antibodies-as-potential-biomarkers-of-premature-atherosclerosis-in-systemic-lupus-erythematosus
#8
Patricia López, Javier Rodríguez-Carrio, Aleida Martínez-Zapico, Ángel I Pérez-Álvarez, Raquel López-Mejías, Lorena Benavente, Lourdes Mozo Mozo, Luis Caminal-Montero, Miguel A González-Gay, Ana Suárez
The present study aimed to evaluate the possible role of immunoglobulin G (IgG) antibodies against high-density lipoproteins (HDL) and paraoxonase 1 (PON1) as possible biomarkers of cardiovascular disease (CVD) in systemic lupus erythematosus (SLE). To this end, levels of these autoantibodies, PON1 activity and total antioxidant capacity were quantified in serum samples from 198 SLE patients, 100 healthy controls (HC) and 42 non-autoimmune individuals with traditional cardiovascular risk factors. PON1 rs662 polymorphism was analysed in a subgroup of patients and controls...
October 10, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29043547/age-related-effects-of-bariatric-surgery-on-early-atherosclerosis-and-cardiovascular-risk-reduction
#9
Frederik H W Jonker, Vera A A van Houten, Leontine H Wijngaarden, René A Klaassen, André A E A de Smet, André Niezen, Lodewijk J D M Schelfhout, Tobias A Bruning, Erwin van der Harst
BACKGROUND: Carotid intima-media thickness (CIMT) is increasingly used as a prognostic indicator for early atherosclerosis and the development of cardiovascular disease. The objective of this study is to assess the exact effects of bariatric surgery on CIMT reduction in different age groups. METHODS: CIMT was measured just proximal to the bifurcation of the carotid artery in 166 patients with mean body mass index of 43.4 kg/m(2) before and at 6 and 12 months after bariatric surgery...
October 17, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/29042398/peripheral-artery-disease-and-transcatheter-aortic-valve-replacement-outcomes-a-report-from-the-society-of-thoracic-surgeons-american-college-of-cardiology-transcatheter-therapy-registry
#10
Alexander C Fanaroff, Pratik Manandhar, David R Holmes, David J Cohen, J Kevin Harrison, G Chad Hughes, Vinod H Thourani, Michael J Mack, Matthew W Sherwood, W Schuyler Jones, Sreekanth Vemulapalli
BACKGROUND: Peripheral artery disease (PAD) is associated with increased cardiovascular mortality, and PAD risk factors overlap with those for aortic stenosis. The prevalence and outcomes associated with PAD in a population undergoing transcatheter aortic valve replacement (TAVR) are unknown. METHODS AND RESULTS: Using the Society of Thoracic Surgeons/Transcatheter Valve Therapy Registry linked to Medicare claims data, we identified patients ≥65 years old undergoing TAVR from 2011 to 2015...
October 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/29041878/-influence-of-sympathetic-denervation-of-the-renal-artery-on-the-level-of-arterial-blood-pressure-cerebral-blood-flow-and-cognitive-function-in-patients-with-resistant-arterial-hypertension
#11
Y N Efimova, A V Lichikaki, B Y Lishmanov
PURPOSE: To study the effect of radiofrequency ablation of renal arteries on regional cerebral blood flow and cognitive function in patients with resistant arterial hypertension (AH). MATERIAL AND METHODS: Transcatheter renal denervation (TRD) was performed in 17 patients with resistant AH. Examination before and after TRD included SPECT with mTc-HMPAO, 24-hours blood pressure (BP) monitoring, and comprehensive neuropsychological testing. Fifteen patients without angiographic signs of carotid atherosclerosis, coronary artery disease and AH, neurological and psychiatric disorders were investigated as control group...
July 2017: Kardiologiia
https://www.readbyqxmd.com/read/29041825/cathepsin-l-deficiency-results-in-reactive-oxygen-species-ros-accumulation-and-vascular-cells-activation
#12
Guo-Xiang Fu, Alex F Chen, Qiu-Mei Xu, Bei-Bei Han, Gao-Zhong Huang, Yuan Zhong
Recent evidence suggests a link between cathepsin L (CTSL) and vascular diseases. However, its contribution to reactive oxygen species (ROS) homeostasis in the vasculature remains unknown. p66shc is a redox enzyme implicated in mitochondrial ROS generation and translation of oxidative signals. In this study, we explored the relationship between CTSL and oxidative damage in vasculature and whether the oxidative damage is mediated by p66shc.Carotid arteries from aged mice (24 months old) showed a reduction in CTSL expression compared with young wild-type mice (4 months old)...
October 17, 2017: Free Radical Research
https://www.readbyqxmd.com/read/29040598/effect-of-metformin-on-vascular-function-in-children-with-type-1-diabetes-a-12-month-randomized-controlled-trial
#13
Jemma J A Anderson, Jennifer J Couper, Lynne C Giles, Catherine E Leggett, Roger Gent, Brian Coppin, Alexia S Peña
Context: Children with type 1 diabetes have vascular dysfunction preceding atherosclerosis. Early interventions are needed to reduce cardiovascular disease. Objective: To evaluate the effect of metformin on vascular function in type 1 diabetes children. Design: 12 month double blind, randomized, placebo-controlled trial. Setting: Tertiary pediatric diabetes clinic. Participants: 90 type 1 diabetes children(8-18 years), above 50th percentile body mass index (BMI)...
October 9, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29040156/accelerated-atheromatosis-and-arteriosclerosis-in-primary-systemic-vasculitides-current-evidence-and-future-perspectives
#14
Ourania D Argyropoulou, Athanase D Protogerou, Petros P Sfikakis
PURPOSE OF REVIEW: Primary systemic vasculitides (PSV) encompass a subset of autoimmune diseases, characterized by inflammation of blood vessels. Atheromatosis and arteriosclerosis may be accelerated in several PSV and account for the increased rate of cardiovascular morbidity that some exhibit. We aimed to summarize recent studies reporting on the acceleration of atheromatosis and/or arteriosclerosis in each type of PSV, using state-of-the-art noninvasive vascular biomarkers with clinical value as end points...
October 16, 2017: Current Opinion in Rheumatology
https://www.readbyqxmd.com/read/29039829/-factors-for-the-development-of-persistent-postoperative-cognitive-dysfunction-in-patients-undergoing-coronary-artery-bypass-surgery-under-extracorporeal-circulation
#15
O A Trubnikova, I V Tarasova, O V Maleva, E S Kagan, O L Barbarash, L S Barbarash
AIM: To analyze the factors contributing to the increased risk of persistent postoperative cognitive dysfunction (POCD) in patients undergoing coronary artery bypass surgery (CABS) under extracorporeal circulation (EC). SUBJECTS AND METHODS: 257 male patients aged 45 to 69 years with coronary heart disease (CHD) undergoing elective CABS under EC were examined. In addition to conventional clinical examination, all the patients underwent neuropsychological testing 3-5 days before, 7-14 days and 1 year after CABS...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/29035100/serum-lipid-level-and-lifestyles-are-associated-with-carotid-femoral-pulse-wave-velocity-among-adults-4-4-year-prospectively-longitudinal-follow-up-of-a-clinical-trial
#16
XiaoXiao Zhao, Hongyu Wang, LiuJin Bo, Hongwei Zhao, Lihong Li, Yingyan Zhou
Lifestyle modifications are recommended as the initial treatment for high blood pressure. The influence of dyslipidemia might be via moderate arterial stiffness, which results in hypertension and cardiovascular disease. We used data from a subgroup of the lifestyle, level of serum lipids/carotid femoral-pulse wave velocity (CF-PWV) Susceptibility BEST Study, a population-based study of community-dwelling adults aged 45-75 years. The serum lipid level and CF-PWV were measured at baseline, and lifestyle such as smoking status, sleeping habits, and the level of oil or salt intake was determined with the use of a validated questionnaire during follow-up...
October 16, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/29032752/association-between-apolipoproteins-ai-and-b-and-ultrasound-indicators-of-carotid-atherosclerosis
#17
Zeljko Zivanovic, Ivana Divjak, Mirjana Jovicevic, Tamara Rabi-Zikic, Biljana Radovanovic, Svetlana Ruzicka-Kaloci, Djordje Stevan Popovic, Edita Stokic, Ksenija Gebauer-Bukurov, Katarina Zivanovic-Vujcic, Petar Slankamenac
BACKGROUND: Apolipoproteins A-I and B (apoA-I and apoB) may be better indicators of the risk of cardiovascular and cerebrovascular diseases than conventional risk factors (RFs). The onset of ischemic stroke (IS) may be preceded by the development of atherosclerotic changes in carotid arteries, which can be detected by ultrasound. Only a certain % of patients with IS have an (underlying) carotid etiology. OBJECTIVE: The aim of our study was to determine the association between ultrasound indicators of carotid atherosclerosis and the presence of apolipoproteins and other biomarkers in patients with IS...
October 10, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/29031984/analysis-of-carotid-artery-transverse-sections-in-long-ultrasound-video-sequences
#18
Kamil Říha, Martin Zukal, Franz Hlawatsch
Examination of the common carotid artery (CCA) based on an ultrasound video sequence is an effective method for detecting cardiovascular diseases. Here, we propose a video processing method for the automated geometric analysis of CCA transverse sections. By explicitly compensating the parasitic phenomena of global movement and feature drift, our method enables a reliable and accurate estimation of the movement of the arterial wall based on ultrasound sequences of arbitrary length and in situations where state-of-the-art methods fail or are very inaccurate...
October 11, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29031776/the-hacd4-haplotype-as-a-risk-factor-for-atherosclerosis-in-males
#19
Ivan Zivotić, Tamara Djurić, Aleksandra Stanković, Ilija Ivančević, Igor Končar, Dejan Milasinović, Goran Stanković, Dragan Alavantić, Maja Zivković
The 9p21.3 region is rich in regulatory elements and the variants in this region had been robustly associated with carotid plaque (CP) and coronary artery disease (CAD). Recently, the HACD4 was detected as one of the six 9p21.3 differentially expressed genes associated with accelerated atherosclerosis and greater mean lesion area in the Athsq1 congenic mice. We aimed to investigate association of two potentially regulatory HACD4 variants (rs36212560 I/D, rs2275888 T/C) and their haplotypes with CP occurrence and the level of HACD4 and FOCAD mRNA in human CP tissue...
October 11, 2017: Gene
https://www.readbyqxmd.com/read/29030499/unexpected-early-radiographic-findings-associated-with-a-ruptured-blister-like-carotid-wall-aneurysm
#20
James West, Jasmeet Singh, Stacey Q Wolfe, Kyle M Fargen
A 33-year-old man presented with aneurysmal subarachnoid hemorrhage from a ruptured, blister-type sidewall internal carotid artery (ICA) aneurysm. Balloon-assisted coiling was performed with residual neck. He subsequently developed severe vasospasm requiring intra-arterial therapies on multiple occasions, during which it was noted that despite widespread vasospasm, a focal segment of the ICA at the site of the aneurysm showed no significant spasm, suggesting underlying vessel abnormality. He was discharged without deficit and scheduled for flow diversion given concern over this potentially pathologic segment of vessel...
October 13, 2017: BMJ Case Reports
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