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Carotid doppler

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https://www.readbyqxmd.com/read/28645797/transcranial-doppler-and-microemboli-detection-relationships-to-symptomatic-status-and-histopathology-findings
#1
Carol C Mitchell, Stephanie M Wilbrand, Bornali Kundu, Catherine N Steffel, Tomy Varghese, Nirvedh H Meshram, Geng Li, Thomas D Cook, M Shahriar Salamat, Robert J Dempsey
The purpose of this study was to determine the relationship between symptomatic status, transcranial Doppler (TCD) microemboli presence and plaque histopathology findings. TCD was performed on 60 patients (37 symptomatic, 23 asymptomatic) before undergoing clinically indicated carotid endarterectomy. The frequency of microemboli signals was not significantly different between symptomatic and asymptomatic subject groups (p = 0.88) and there were no differences observed in the macroscopic or histopathology scoring of these plaques (p-values all > 0...
June 20, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28644968/serum-lipoprotein-associated-phospholipase-a2-predicts-the-formation-of-carotid-artery-plaque-and-its-vulnerability-in-anterior-circulation-cerebral-infarction
#2
Yuping Yang, Tao Xue, Juehua Zhu, Jiayi Xu, Xiaowei Hu, Penghao Wang, Tao Kong, Yan Yan, Lihui Yang, Shouru Xue
OBJECTIVE: Circulation inflammation markers such as high-sensitive C-reactive protein (hsCRP) and lipoprotein-associated phospholipase A2 (Lp-PLA2) are considered as predictors of cerebral and cardiac vascular diseases. However, the role of hsCRP and Lp-PLA2 in the anterior circulation cerebral infarction (ACI) is to be elaborated. PATIENTS AND METHODS: We included 100 patients with acute anterior circulation cerebral infarction (AaCI group) and 50 non-infarction subjects (control group)...
June 12, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/28631982/carotid-intraplaque-hemorrhage-on-vessel-wall-mri-does-not-correlate-with-tcd-emboli-monitoring-in-patients-with-recently-symptomatic-carotid-atherosclerosis
#3
Adam de Havenon, David Tirschwell, Jennifer J Majersik, Scott McNally, Gregory Stoddard, Anne Moore, Mahmud Mossa-Basha
Background Carotid intraplaque hemorrhage (IPH) seen on vessel wall MRI is associated with an increased risk of stroke or transient ischemic attack, as are microembolic signals (MES) detected by transcranial Doppler (TCD). We sought to examine the association between IPH and MES in acute stroke patients with symptomatic carotid atherosclerosis. Methods Through a retrospective chart review, we included patients from 2011 to 2013 with acute ischemic stroke due to carotid atherosclerosis of varying stenosis who had both 3D volumetric MRI of the neck and TCD emboli monitoring...
January 1, 2017: Neuroradiology Journal
https://www.readbyqxmd.com/read/28623598/cost-effectiveness-of-two-decision-strategies-for-shunt-use-during-carotid-endarterectomy
#4
Joe L P Kolkert, Rolf H H Groenwold, Vanessa J Leijdekkers, Joep Ter Haar, Clark J Zeebregts, Anco Vahl
BACKGROUND: Arterial shunting during carotid endarterectomy (CEA) is essential in some patients because of insufficient cerebral perfusion during cross-clamping. However, the optimal diagnostic modality identifying these patients is still debated. None of the currently used modalities has been proved superior to another. The aim of this study was to assess the cost-effectiveness of two modalities, stump pressure measurement (SPM) versus electroencephalography (EEG) combined with transcranial Doppler (TCD) during CEA...
June 16, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28608454/accelerated-atherosclerosis-in-anca-associated-vasculitis
#5
I González-Suárez, J J Ríos-Blanco, J Arpa
OBJECTIVES: Cardiovascular disease, including myocardial infarction and stroke, is a major cause of mortality in ANCA-associated vasculitis (AAV). Although AAV affects small vessels, an accelerated atherosclerosis not explained by traditional cardiovascular risk factors (CVRF) has been demonstrated. We aimed to investigate the association of atherosclerosis measured by carotid intima-media thickness (CIMT) and cerebral small vessel disease in AAV-patients. MATERIALS & METHODS: Twenty-three AAV-patients in complete remission were recruited...
June 12, 2017: Acta Neurologica Scandinavica
https://www.readbyqxmd.com/read/28604360/chitosan-based-hydrogels-for-developing-a-small-diameter-vascular-graft-in-vitro-and-in-vivo-evaluation
#6
Audrey Aussel, Noélie Thébaud, Xavier Berard, Vincenzo Brizzi, Samantha Delmond, Reine Bareille, Robin Siadous, Chloe James, Jean Ripoche, Marlène Durand, Alexandra Montembault, Béatrice Burdin, Didier Letourneur, Nicolas L'Heureux, Laurent David, Laurence Bordenave
Vascular grafts made of synthetic polymers perform poorly in small-diameter applications (cardiac and peripheral bypass). Chitosan is a biocompatible natural polymer that can provide a novel biological scaffold for tissue engineering development. The goal of this study was to demonstrate the biocompatibility of a novel chitosan preparation in vitro and in vivo, and to assess its potential as a scaffold for vascular applications. Methods and Results. A series of experiments of increasing complexity, ranging from in vitro biocompatibility and hemocompatibility tests to in vivo studies in small and large animals (rat and sheep), was performed to provide a comprehensive analysis of chitosan hydrogels' biological properties...
June 12, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28598874/transverse-split-sternotomy-a-mini-invasive-approach-for-repair-of-congenital-cardiac-defects
#7
Pankaj Garg, Arvind Kumar Bishnoi, Kartik Patel, Chandrashekaran Annanthnarayan, Jigar Patel, Malkesh Talsariya, Komal Shah, Sanjay Patel
OBJECTIVE: In this article, we aim to review our mini-invasive technique of transverse sternal split (TSS) with or without cervical cannulation for cardiopulmonary bypass (CPB), its usefulness, and efficiency for repair of congenital cardiac defects. METHODS: Between January 2013 and June 2015, 34 infants and small children were operated through TSS in third or fourth intercostal space [Tetralogy of Fallot 11, perventricular ventricular septal defect (VSD) device closure 23]...
June 8, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
https://www.readbyqxmd.com/read/28592999/contrast-enhanced-ultrasound-of-the-carotid-system-a-review-of-the-current-literature
#8
REVIEW
Vasileios Rafailidis, Afroditi Charitanti, Thomas Tegos, Evangelos Destanis, Ioannis Chryssogonidis
Carotid disease is a major current health problem accounting for a significant part of stroke patients. Ultrasound with colour Doppler and spectral analysis is the primary imaging technique used for screening and diagnostic evaluation of the extracranial part of carotid arteries offering identification and grading of carotid disease. However, inherent limitations of this technique include flow-related artefacts like Doppler angle dependence and aliasing artefact which may sometimes hinder complete assessment of a stenotic part of the vessel, potentially failing to address clinically significant differential diagnosis issues...
June 2017: Journal of Ultrasound
https://www.readbyqxmd.com/read/28588353/age-wise-association-of-carotid-intima-media-thickness-in-ischemic-stroke
#9
Yogesh Saxena, Vartika Saxena, Manish Mittal, Malini Srivastava, Shailendra Raghuvanshi
BACKGROUND: Ischemic stroke is often a sequel of atherosclerotic risk factors. Carotid intima-media thickness (CIMT) is a surrogate marker of early atherosclerotic changes. PURPOSE: It was hypothesized that CIMT is associated with ischemic stroke in adults across all ages. METHODS: A case control study was performed on 163 diagnosed cases of first-time ischemic stroke and age-(±1 SD) and gender-matched healthy control attendants reporting at a tertiary care hospital...
May 2017: Annals of Neurosciences
https://www.readbyqxmd.com/read/28587650/impact-of-diabetes-duration-and-degree-of-carotid-artery-stenosis-on-major-adverse-cardiovascular-events-a-single-center-retrospective-observational-cohort-study
#10
Minsu Noh, Hyunwook Kwon, Chang Hee Jung, Sun U Kwon, Min Seon Kim, Woo Je Lee, Joong Yeol Park, Youngjin Han, Hyangkyoung Kim, Tae-Won Kwon, Yong-Pil Cho
BACKGROUND: We aimed to investigate the impact of diabetes duration and carotid artery stenosis (CAS) on the occurrence of major adverse cardiovascular events (MACE) in patients with type 2 diabetes mellitus (T2DM) without clinical cardiovascular disease. METHODS: A total of 2006 patients with T2DM, without clinical cardiovascular disease, aged >50 years, and who underwent baseline carotid Doppler ultrasound screening with regular follow-ups at the outpatient clinic of our diabetes center, were stratified into four subgroups according to diabetes duration and CAS degree...
June 6, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28586576/non-arteritic-anterior-ischemic-optic-neuropathy-does-anticoagulation-help
#11
Akhunzada Muhammad Aftab, Mustafa Iqbal, Awais Rauf, Asif Ali
BACKGROUND: Non Arteritic Anterior Ischemic Optic Neuropathy (NAION) is the most common acute optic neuropathy in patients over 50 years of age. This study was conducted to determine the beneficial effects of anticoagulation with Heparin and Warfarin in patients with NAION presenting within 4 weeks of onset of symptoms. METHODS: A prospective, interventional, pilot study was conducted in Eye- A unit of Khyber Teaching Hospital from July 2010 onwards on patients with NAION presenting within 4 weeks of onset of symptoms...
October 2016: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28573489/ultrasonic-evaluation-of-renal-cortex-arterial-area-enables-differentiation-between-hypertensive-and-glomerulonephritis-related-chronic-kidney-disease
#12
Arkadiusz Lubas, Grzegorz Kade, Robert Ryczek, Piotr Banasiak, Przemysław Dyrla, Katarzyna Szamotulska, Daniel Schneditz, Stanisław Niemczyk
PURPOSE: Identifying the primary etiology of cardio-renal syndrome in a timely manner remains an ongoing challenge in nephrology. We hypothesized that hypertensive kidney damage can be distinguished from chronic glomerulonephritis at an early stage of chronic kidney disease (CKD) using ultrasound (US) Doppler sonography. METHODS: Fifty-six males (age 54 ± 15, BMI 28.3 ± 3.5 kg/m(2)) with hypertension and stable CKD at stages 2-4 [38 with essential hypertension (HT-CKD); 18 with glomerulonephritis (GN-CKD)] were studied...
June 1, 2017: International Urology and Nephrology
https://www.readbyqxmd.com/read/28547004/ocular-arterial-occlusive-disorders-and-carotid-artery-disease
#13
Sohan Singh Hayreh, M Bridget Zimmerman
OBJECTIVE: To compare prevalence of carotid artery disease and its various types of lesions in different types of ocular arterial occlusive disorders. DESIGN: Cohort study. SUBJECTS: 614 consecutive patients (728 eyes) with ocular arterial occlusive disorders. METHODS: At first visit, all patients had a detailed ophthalmic and medical history, comprehensive ophthalmic evaluation, and carotid artery evaluation (by Doppler/angiography) on the side of ocular arterial occlusion, and echocardiography...
January 2017: Ophthalmology retina
https://www.readbyqxmd.com/read/28546040/early-carotid-endarterectomy-provides-a-better-neurological-outcome-in-symptomatic-patients-a-single-center-experience
#14
Gianfranco Varetto, Lorenzo Gibello, Francesca Sperti, Alessandra Trevisan, Edoardo Frola, Paolo Garneri, Pietro Rispoli
INTRODUCTION: Many studies confirmed the role of early carotid endarterectomy to prevent recurrent stroke or transient ischemic attack however the mid-long term neurological benefit is still not completely investigated. The purpose of the study is to evaluate the role of early carotid endarterectomy on the peri and post-operative stroke/death complications of patients with a symptomatic carotid stenosis Material and methods: ninety consecutive patients were referred to our center for a symptomatic carotid stenosis...
May 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28545398/advanced-glycation-end-products-in-children-with-type-1-diabetes-and-early-reduced-diastolic-heart-function
#15
Leif Brunvand, Martin Heier, Cathrine Brunborg, Kristian F Hanssen, Drude Fugelseth, Knut Haakon Stensaeth, Knut Dahl-Jørgensen, Hanna Dis Margeirsdottir
BACKGROUND: Reduced diastolic function is an early sign of diabetes cardiomyopathy in adults and is associated with elevated levels of HbA1c and advanced glycation end products (AGEs). OBJECTIVE: To assess the associations between early reduced diastolic function and elevated levels of HbA1c and AGEs in children and adolescents with type 1 diabetes (T1D). METHODS: One hundred fourty six T1D patients (age 8-18 years) without known diabetic complications were examined with tissue Doppler imaging and stratified into two groups according to diastolic function...
May 25, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28541242/diagnostic-evaluation-of-neck-torsion-test-in-objective-examination-in-patients-with-vertigo-and-or-hearing-impairment
#16
Piotr Niewiadomski, Marzena Bielińska, Piotr Pietkiewicz, Jurek Olszewski
INTRODUCTION: HASH(0x360bb88) INTRODUCTION: The aim of the study was to evaluate the neck torsion test in objective examinations of patients with vertigo and/or hearing loss. MATERIAL AND METHODS: The study was conducted in 100 patients, including 54 women and 46 men aged 17-79 years, who were divided into two groups: I - 50 patients, including 30 women and 20 men aged 17-79 years (mean age 49.92 years) with dizziness and/or hearing impairments, and confirmed asymmetry of intracranial vessels, II - 50 patients - control group, including 24 women and 26 men aged 20-71 years without dizziness and/or hearing disorders and without disturbance in the construction of intracranial vessels...
June 30, 2017: Otolaryngologia Polska
https://www.readbyqxmd.com/read/28537106/vasoreactivity-in-cadasil-comparison-to-structural-mri-and-neuropsychology
#17
Fiona C Moreton, Breda Cullen, Christian Delles, Celestine Santosh, Rosario L Gonzalez, Krishna Dani, Keith W Muir
Impaired cerebrovascular reactivity precedes histological and clinical evidence of CADASIL in animal models. We aimed to more fully characterise peripheral and cerebral vascular function and reactivity in a cohort of adult CADASIL patients, and explore the associations of these with conventional clinical, imaging and neuropsychological measures. A total of 22 adults with CADASIL gave informed consent to participate in an exploratory study of vascular function in CADASIL. Clinical assessment, comprehensive vascular assessment, MRI and neuropsychological testing were conducted...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28511475/colour-doppler-evaluation-of-extracranial-carotid-artery-in-patients-presenting-with-acute-ischemic-stroke-and-correlation-with-various-risk-factors
#18
Samrin Haq, Manoj Mathur, Jasvir Singh, Navkiran Kaur, Raminderpal Singh Sibia, Rajesh Badhan
INTRODUCTION: Stroke is defined as an abrupt onset of neurologic deficit due to vascular cause. It is one of the leading causes of mortality and morbidity all over the world making early diagnosis and treatment inevitable. Lesions of extra cranial carotid arteries are implicated in majority of cases of acute ischemic stroke. Carotid Doppler is a non-invasive imaging technique, with sensitivity approaching that of angiography. Computed Tomography (CT) plays a major role to assess the site and nature of the lesion in patients with acute ischemic stroke...
March 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28505975/reduced-cardiovascular-functions-in%C3%A2-patients-with-alzheimer-s-disease
#19
Wang-Sheng Jin, Xian-Le Bu, Ye-Ran Wang, Ling Li, Wei-Wei Li, Yu-Hui Liu, Chi Zhu, Xiu-Qing Yao, Yang Chen, Chang-Yue Gao, Tao Zhang, Hua-Dong Zhou, Fan Zeng, Yan-Jiang Wang
Previous studies have suggested that cardiovascular functions might play a critical role in Alzheimer's disease (AD) pathogenesis. However, the relationship among heart function, blood flow of cerebral vessels, and AD remains unclear. In the present study, AD patients (n = 34) and age- and gender-matched cognitively normal controls (n = 34) were recruited. Demographic and comorbidity information was collected. The ejection fraction was measured using echocardiography, and the mean velocity, pulsatility index (PI), and resistance index (RI) of the basilar artery (BA), left terminal internal carotid artery (LTICA), and right terminal internal carotid artery (RTICA) were measured using transcranial Doppler...
2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28503488/treatment-of-cerebral-vasospasm-in-an-infant-using-a-modified-dotter-technique
#20
Brian M Snelling, Samir Sur, Sumedh S Shah, Eric C Peterson
An 8-month old female presented with spontaneous subarachnoid hemorrhage and was treated successfully with endovascular coil embolization of the ruptured aneurysm. Transcranial Doppler ultrasound performed four days later demonstrated middle cerebral artery (MCA) velocities greater than 350 cm/sec on the right and greater than 200 cm/sec on the left, despite medical management. The patient demonstrated no focal neurological deficits, though examination was limited by our patient's sedation and intubation. Angiography revealed severe vasospasm of the supraclinoid internal carotid and MCA territories, bilaterally...
March 2017: Journal of Cerebrovascular and Endovascular Neurosurgery
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