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https://www.readbyqxmd.com/read/29340741/-platelet-inhibition-in-patients-with-coronary-cerebral-and-peripheral-macroangiopathy-what-when-and-how-long
#1
REVIEW
M Halbach, S Baldus
BACKGROUND: Inhibition of platelet aggregation can reduce the rate of vascular events in patients with coronary artery disease, carotid artery stenosis and symptomatic peripheral arterial disease. The choice of platelet inhibitors in monotherapy and combination therapy as well as the duration of dual platelet inhibition depend on the clinical situation and individual patient characteristics. GOAL: The present review summarizes the latest data from clinical trials and recommendations regarding platelet inhibition in coronary, cerebral and peripheral arterial disease...
January 16, 2018: Der Internist
https://www.readbyqxmd.com/read/29339370/nature-s-wastebasket-the-role-of-the-external-carotid-artery-in-acute-stroke
#2
Jesse Jones, Conrad William Liang, Nima Ramezan-Arab, Gary Duckwiler, Satoshi Tateshima
We describe a novel technical approach to acute stroke illustrated by the case of a 41 year old male who presented with tandem right common carotid artery (CCA) and M1 occlusions. His NIHSS was 17 and Alberta stroke programe early CT score (ASPECTs) was 8. Thrombectomy initially proved challenging due to large volume CCA thrombus that repeatedly occluded the aspiration catheters. However, by inflating a balloon distally and pulling clot into the adjacent ECA, we were able to quickly restore distal contrast flow to the intracranial circulation and achieve Thrombolysis In Cerebral Infarction/Arterial Occlusive Lesion (TICI2C/AOL3) revascularization...
January 15, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29339323/mechanical-thrombectomy-of-acute-middle-cerebral-artery-occlusion-using-trans-anterior-communicating-artery-approach
#3
Krishna Amuluru, Charles E Romero, Logan Pyle, Mohammad El-Ghanem, Fawaz Al-Mufti
BACKGROUND: A cross-circulation technique involves gaining access to a cerebral vessel through a patent anterior or posterior communicating artery. This technique may be utilized in patients with emergent large vessel occlusions and an unfavorable direct route to the occlusion. While few previous reports have demonstrated successful cross-circulation technique for treatment of emergent large vessel occlusions, we present the first two cases of trans-anterior communicating artery stent-retriever thrombectomy...
January 12, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29334520/invited-commentary-evaluation-of-horner-syndrome-in-the-mri-era
#4
Aki Kawasaki
This Invited Commentary discusses the following article: BACKGROUND:: To identify the etiologies of adult Horner syndrome (HS) in the MRI era using a targeted evaluation approach and to assess the value and yield of targeted imaging. METHODS: A retrospective chart review was performed of 200 adult outpatients with HS, confirmed with cocaine eyedrop testing. Patients were divided into subgroups based on the presence or absence of symptoms and those who did or did not receive additional testing with hydroxyamphetamine drops...
January 11, 2018: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/29330796/monitoring-functional-responses-to-hypoxia-in-single-carotid-body-cells
#5
Ana María Muñoz-Cabello, Hortensia Torres-Torrelo, Ignacio Arias-Mayenco, Patricia Ortega-Sáenz, José López-Barneo
The carotid body is the main arterial chemoreceptor in mammals that mediates the cardiorespiratory reflexes activated by acute hypoxia. Here we describe the protocols followed in our laboratory to study responsiveness to hypoxia of single, enzymatically dispersed, glomus cells monitored by microfluorimetry and the patch-clamp technique.
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29330254/increased-levels-of-lectin-like-oxidized-low-density-lipoprotein-receptor-1-in-ischemic-stroke-and-transient-ischemic-attack
#6
Tonje Skarpengland, Mona Skjelland, Xiang Yi Kong, Karolina Skagen, Sverre Holm, Kari Otterdal, Christen P Dahl, Kirsten Krohg-Sørensen, Ellen L Sagen, Vigdis Bjerkeli, Anne Hege Aamodt, Azhar Abbas, Ida Gregersen, Pål Aukrust, Bente Halvorsen, Tuva B Dahl
BACKGROUND: Soluble lectin-like oxidized low-density lipoprotein receptor-1 (sLOX-1) has been shown to be increased in patients with acute ischemic stroke. Here, we evaluated plasma sLOX-1 levels and vascular carotid plaque LOX-1 (ie, OLR1) gene expression in patients with ischemic stroke and transient ischemic attack (TIA) with particular focus on their relation to time since symptom onset. METHODS AND RESULTS: Plasma sLOX-1 (n=232) and carotid plaque OLR1 gene expression (n=146) were evaluated in patients who were referred to evaluation for carotid endarterectomy, as well as in healthy control plasma (n=81)...
January 12, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29329321/impact-of-lipopolysaccharide-induced-acute-inflammation-on-baroreflex-controlled-sympathetic-arterial-pressure-regulation
#7
Takeshi Tohyama, Keita Saku, Toru Kawada, Takuya Kishi, Keimei Yoshida, Takuya Nishikawa, Hiroshi Mannoji, Kazuhiro Kamada, Kenji Sunagawa, Hiroyuki Tsutsui
BACKGROUND: Lipopolysaccharide (LPS) induces acute inflammation, activates sympathetic nerve activity (SNA) and alters hemodynamics. Since the arterial baroreflex is a negative feedback system to stabilize arterial pressure (AP), examining the arterial baroreflex function is a prerequisite to understanding complex hemodynamics under LPS challenge. We investigated the impact of LPS-induced acute inflammation on SNA and AP regulation by performing baroreflex open-loop analysis. METHODS: Ten anesthetized Sprague-Dawley rats were used...
2018: PloS One
https://www.readbyqxmd.com/read/29327345/serum-lipoprotein-a-predicts-acute-coronary-syndromes-in-patients-with-severe-carotid-stenosis
#8
Fabio Rigamonti, Federico Carbone, Fabrizio Montecucco, Aldo Bonaventura, Luca Liberale, Fabienne Burger, Aline Roth, Maria Bertolotto, Giovanni Spinella, Bianca Pane, Domenico Palombo, Aldo Pende, Franco Dallegri, François Mach, Stefano Bertolini, Livia Pisciotta
Different cut-off values of serum lipoprotein(a) [Lp(a)] were recently identified in order to better stratify cardiovascular risk categories. Both pathophysiological and prognostic values of Lp(a) remain unclear. Here, the prognostic value of Lp(a) and its correlation with intraplaque features were assessed in patients with severe carotid artery stenosis undergoing endarterectomy (n=180). The cut-off value of 10 mg/dL for serum Lp(a) was selected to predict 24-month follow-up acute coronary syndrome (ACS). In addition, the association between serum Lp(a) and intraplaque lipids, collagen, inflammatory and vascular cells was assessed...
January 11, 2018: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/29325955/endovascular-patch-embolization-for-blood-blister-like-aneurysms-in-the-dorsal-segment-of-the-internal-carotid-artery
#9
Xudong Hao, Guilin Li, Jian Ren, Jingwei Li, Chuan He, Hong-Qi Zhang
OBJECTIVE: Blood blister-like aneurysms (BBAs) in the dorsal segment of the internal carotid artery (ICA) are fragile and difficult to treat, and the optimal treatment for BBAs is still controversial. We report clinical and angiographic results with procedural details for the treatment of BBA by using the endovascular patch embolization method. METHODS: We retrospectively reviewed patients who presented with subarachnoid hemorrhage(SAH) caused by ICA-BBAs and were treated with the endovascular patch embolization method in our center from October 2011 to March 2015...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29324372/dislocation-of-a-cerebral-protection-device-component-during-carotid-stenting-a-case-report-of-favorable-outcome-from-conservative-management-after-failure-of-retrieval
#10
Ilaria Tocco-Tussardi, Caterina Kulyk, Vincenzo Vindigni, Giampiero Avruscio
INTRODUCTION: Cerebral-protection devices (CPDs) are a well-established system for reduction of embolic risk in carotid artery angioplasty and stenting (CAS). Although rare, adverse events with CPDs are unpredictable and can be associated with serious outcomes and iatrogenic sequelae. PRESENTATION OF CASE: We describe the unique case of dislocation of a FilterWire EX™ filter loop during right CAS. On trying to recapture the CPD filter at the end of the procedure, the filter loop suddenly detached from the guidewire and dislocated to the proximal middle cerebral artery...
December 28, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29321992/alterations-of-haemodynamic-parameters-in-spontaneously-hypertensive-rats-by-aristolochia-ringens-vahl-aristolochiaceae
#11
Flora Ruth Aigbe, Abdul Sattar Zubaid Munavvar, Hassan Rathore, Olorunfemi Eseyin, Yen Pei Pei, Safia Akhtar, Ashfaq Chohan, Hui Jin, Jooli Khoo, Samual Tan, Mohammed Lazhari, Sheryar Afzar, Fiaz Ahmed, Olufunmilayo Olaide Adeyemi, Edward Johns
Aristolochia ringens Vahl. (Aristolochiaceae (AR); mǎ dōu líng) is used traditionally in Nigeria for the management of various disorders including oedema. Preliminary investigation revealed its modulatory effect on the cardiovascular system. This study was aimed at investigating the effect of the aqueous root extract of A. ringens (AR) on haemodynamic parameters of spontaneously hypertensive rats (SHRs). The effect of oral subacute (21 days) and intravenous acute exposure of SHRs to the extract were assessed using tail cuff and carotid artery canulation methods respectively...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29318895/acute-effect-of-coffee-on-aortic-stiffness-and-wave-reflections-in-healthy-individuals-differential-effect-according-to-habitual-consumption
#12
Nikolaos Ioakeimidis, Vaios Tzifos, Charalambos Vlachopoulos, Dimitrios Terentes-Printzios, Christos Georgakopoulos, Dimitrios Tousoulis
The acute effect of coffee on arterial stiffness and its dependence on habitual consumption was studied in 24 volunteers on four separate occasions during which subjects received: (a) coffee espresso, (b) decaffeinated coffee espresso, (c) caffeine alone and (d) placebo (hot water). The increase in carotid femoral pulse wave velocity (PWV), augmentation index (AIx) and augmented pressure (AP) of the aortic pressure waveform after coffee consumption was more pronounced in non-habitual (n = 13) compared to habitual drinkers (n = 11), (differences of maximal changes between groups in PWV, AIx, AP responses by 0...
January 10, 2018: International Journal of Food Sciences and Nutrition
https://www.readbyqxmd.com/read/29313987/variable-role-of-carotid-bodies-in-cardiovascular-responses-to-exercise-hypoxia-and-hypercapnia-in-spontaneously-hypertensive-rats
#13
Wioletta Pijacka, Pedro L Katayama, Helio C Salgado, Gisele S Lincevicius, Ruy R Campos, Fiona D McBryde, Julian F R Paton
The carotid body has recently emerged as a promising therapeutic target for treating cardiovascular disease, however the potential impact of carotid bodies removal on the dynamic cardiovascular responses to acute stressors such as exercise, hypoxia and hypercapnia in hypertension is an important safety consideration that has not been studied. We first validated a novel surgical approach to selectively resect the carotid bodies bilaterally (CBR) sparing the carotid sinus baroreflex. Second, we evaluated the impact of CBR on the cardiovascular responses to exercise, hypoxia and hypercapnia in the conscious, chronically instrumented spontaneously hypertensive (SH) rats...
January 5, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29307023/successful-microsurgical-treatment-of-intracranial-aneurysms-in-infants-a-retrospective-study-and-literature-review
#14
Yanming Ren, Shuzhen Zhao, Lunxin Liu, Hong Sun, Yi Liu, Hao Li, Lu Ma, Min He, Chao You, Jin Li
OBJECTIVE: Intracranial aneurysms are extremely rare in infants, especially less than 1 year old. This study aimed to analyze the frequency of infantile intracranial aneurysm in our department and investigate the clinical characteristics, treatment strategies, and outcomes of this disease. METHODS: Six infants under 1 year old in 4350 patients with intracranial aneurysms were retrospectively analyzed from January 2010 to December 2016. RESULTS: The patients (5 females and 1 male) ranged in age from 2 to 11 (mean age, 4...
January 6, 2018: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29304524/amino-fucoidan-as-a-vector-for-rtpa-induced-fibrinolysis-in-experimental-thrombotic-events
#15
Radouane Ghebouli, Stephane Loyau, Murielle Maire, Pierre Saboural, Jean-Philippe Collet, Martine Jandrot-Perrus, Didier Letourneur, Frédéric Chaubet, Jean-Baptiste Michel
Acute ischaemic stroke, myocardial infarction and pulmonary embolism are the main causes of mortality and morbidity worldwide. Thrombolysis by intravenous injection of recombinant tissue plasminogen activator (rtPA) remains the most common non-interventional treatment to recanalize occluded vessels. However, this procedure is limited by significant drawbacks, including high doses and bleeding complications. Recent studies showed that fucoidan targets the intraluminal thrombus in vivo. We have developed a chimaera covalently linking fucoidan, able to target platelets within the thrombus, to dilysine, able to non-covalently bind rtPA...
January 2018: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/29299616/increased-variability-of-watershed-areas-in-patients-with-high-grade-carotid-stenosis
#16
Stephan Kaczmarz, Vanessa Griese, Christine Preibisch, Michael Kallmayer, Michael Helle, Isabel Wustrow, Esben Thade Petersen, Hans-Henning Eckstein, Claus Zimmer, Christian Sorg, Jens Göttler
PURPOSE: Watershed areas (WSAs) of the brain are most susceptible to acute hypoperfusion due to their peripheral location between vascular territories. Additionally, chronic WSA-related vascular processes underlie cognitive decline especially in patients with cerebral hemodynamic compromise. Despite of high relevance for both clinical diagnostics and research, individual in vivo WSA definition is fairly limited to date. Thus, this study proposes a standardized segmentation approach to delineate individual WSAs by use of time-to-peak (TTP) maps and investigates spatial variability of individual WSAs...
January 3, 2018: Neuroradiology
https://www.readbyqxmd.com/read/29285704/direct-perfusion-of-the-carotid-artery-in-patients-with-brain-malperfusion-secondary-to-acute-aortic-dissection
#17
Yutaka Okita, Yuki Ikeno, Koki Yokawa, Yojiro Koda, Soichiro Henmi, Yasuko Gotake, Hidekazu Nakai, Takashi Matsueda, Takeshi Inoue, Hiroshi Tanaka
OBJECTIVE: Presenting our experience of direct perfusion of the carotid artery in patients with brain malperfusion secondary to acute aortic dissection. PATIENTS: Among 381 patients who underwent aortic repair for acute type A aortic dissection from October 1999 to August 2017, brain malperfusion was recognized in 50 patients. Nine patients had direct perfusion of the right carotid artery in patients with brain malperfusion secondary to acute aortic dissection. Age at surgery was 65...
December 28, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29279888/prevalence-of-systemic-atherosclerosis-burdens-and-overlapping-stroke-etiologies-and-their-associations-with-long-term-vascular-prognosis-in-stroke-with-intracranial-atherosclerotic-disease
#18
Takao Hoshino, Leila Sissani, Julien Labreuche, Gregory Ducrocq, Philippa C Lavallée, Elena Meseguer, Céline Guidoux, Lucie Cabrejo, Cristina Hobeanu, Fernando Gongora-Rivera, Pierre-Jean Touboul, Philippe Gabriel Steg, Pierre Amarenco
Importance: Patients who have experienced stroke with intracranial atherosclerotic disease (ICAD) may also have concomitant atherosclerosis in different arterial beds and other possible causes for ischemic stroke. However, little is known about the frequency and prognostic effect of such overlapping diseases. Objectives: To describe the prevalence of systemic atherosclerotic burdens and overlapping stroke etiologies and their contributions to long-term prognoses among patients who have experienced stroke with ICAD...
December 26, 2017: JAMA Neurology
https://www.readbyqxmd.com/read/29276562/multiple-strokes-associated-with-elongation-of-the-hyoid-bone
#19
Cameron Ludt, Michelle Leppert, Asher Jones, John Song, David Kuwayama, Daniel M Pastula, Sharon Poisson
Hyoid bone elongation is an uncommon cause of stroke. Here, we report a case of hyoid bone elongation causing localized trauma to the internal carotid artery, resulting in multiple strokes. A 32-year-old woman presented with unilateral weakness and history of a recent stroke. Imaging revealed the greater horn of the hyoid bone extending between the external and internal carotid with associated thrombus at the carotid bifurcation and acute stroke. Carotid ultrasound demonstrated movement of the hyoid bone in and out of the space between the external carotid artery and internal carotid artery with neck rotation...
January 2018: Neurohospitalist
https://www.readbyqxmd.com/read/29274451/treatment-of-progressive-herpes-zoster-induced-vasculopathy-with-surgical-revascularization-effects-on-cerebral-hemodynamics
#20
Sarah K Lants, Jennifer M Watchmaker, Meher R Juttukonda, Larry T Davis, Manus J Donahue, Matthew R Fusco
BACKGROUND: Herpes zoster ophthalmicus (HZO) is caused by the reactivation of the herpes simplex virus in the trigeminal nerve. HZO-initiated cerebral vasculopathy is well-characterized, however there are no documented cases that report the efficacy of surgical revascularization for improving cerebral hemodynamics following progressive HZO-induced vasculopathy. We present a case where quantitative anatomical and hemodynamic imaging were performed longitudinally before and after surgical revascularization in a patient with HZO and vasculopathic changes...
December 20, 2017: World Neurosurgery
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