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Peripheral vascular

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https://www.readbyqxmd.com/read/29792870/peripheral-complement-interactions-with-amyloid-%C3%AE-peptide-in-alzheimer-s-disease-polymorphisms-structure-and-function-of-complement-receptor-1
#1
Jenny U Johansson, William D Brubaker, Harold Javitz, Andrew W Bergen, Denise Nishita, Abhishek Trigunaite, Andrés Crane, Justine Ceballos, Diego Mastroeni, Andrea J Tenner, Marwan Sabbagh, Joseph Rogers
INTRODUCTION: Genome-wide association studies consistently show that single nucleotide polymorphisms (SNPs) in the complement receptor 1 (CR1) gene modestly but significantly alter Alzheimer's disease (AD) risk. Follow-up research has assumed that CR1 is expressed in the human brain despite a paucity of evidence for its function there. Alternatively, erythrocytes contain >80% of the body's CR1, where, in primates, it is known to bind circulating pathogens. METHODS: Multidisciplinary methods were employed...
May 21, 2018: Alzheimer's & Dementia: the Journal of the Alzheimer's Association
https://www.readbyqxmd.com/read/29792748/portal-vein-thrombosis-imaging-the-spectrum-of-disease-with-an-emphasis-on-mri-features
#2
Reena C Jha, Satinderpal Singh Khera, Amit Dinesh Kalaria
OBJECTIVE: The purpose of this article is to review the classic and uncommon imaging findings of portal vein thrombosis (PVT) (acute, chronic, congenital, and septic thrombus) as visualized on multiple modalities, with an emphasis on MRI findings. Additional aims are to understand the imaging of obliterative portal venopathy and its clinical significance, appreciate morphologic changes of the biliary system that may accompany PVT, and recognize changes in liver enhancement patterns seen with PVT related to the hepatic arterial buffer response...
May 24, 2018: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29792553/mitochondrial-complex-i-defect-resulting-from-exercise-induced-lower-limb-ischemia-in-patients-with-peripheral-arterial-disease
#3
Isabelle Signolet, Pierre Abraham, Stéphanie Chupin, Myriam Ammi, Naïg Gueguen, Franck Letournel, Jean Picquet, Christophe Baufreton, Mickael Daligault, Vincent Procaccio, Pascal Reynier, Samir Henni
OBJECTIVE: This study aims to compare the structural and mitochondrial alterations between muscle segments affected by exercise-induced ischemia and segments of the same muscle without ischemia, in the same subject. METHODS: In a prospective analysis, 34 patients presenting either peripheral arterial disease or chronic coronary syndrome without any evidence of peripheral arterial disease were eligible for inclusion based on findings indicating a need for either a femoro-popliteal bypass or a saphenous harvesting for coronary bypass...
May 24, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29792135/modified-ldl-immune-complexes-and-cardiovascular-disease
#4
Maria F Lopes-Virella, Gabriel Virella
Modified forms of LDL, both spontaneously formed in the organism or prepared in the laboratory, are immunogenic. As a consequence, antigen-antibody complexes (immune complexes, IC) formed in vivo can be measured in the peripheral blood, and their levels are strong predictors of cardiovascular disease (CVD). It has been possible to generate antibodies that recognize different LDL modifications, allowing the analysis of circulating IC constitution. Clinical studies showed that the antigenic constitution of the IC has a modulating effect on the development of CVD...
May 23, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29791963/nerve-entrapment-in-ankle-and-foot-ultrasound-imaging
#5
Basavaraj Chari, Eugene McNally
Peripheral nerve entrapment of the ankle and foot is relatively uncommon and often underdiagnosed because electrophysiologic studies may not contribute to the diagnosis. Anatomy of the peripheral nerves is variable and complex, and along with a comprehensive physical examination, a thorough understanding of the applied anatomy is essential. Several studies have helped identify specific areas in which nerves are commonly compressed. Identified secondary causes of nerve compression include previous trauma, osteophytes, ganglion cysts, edema, accessory muscles, tenosynovitis, vascular lesions, and a primary nerve tumor...
July 2018: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/29791713/the-transradial-approach-for-lower-extremity-vascular-intervention
#6
Rami O Tadros, Vivek S Prakash, Melissa J Baldwin, Adam Korayem, Michael L Marin, Peter L Faries
Simultaneous technological advancements in both imaging as well as devices have resulted in an expansion of endovascular options for vascular access. In particular, radial access has traditionally been more favored for coronary interventions; its use in the aortoiliac and lower extremity vasculature has been constrained by the length of devices and the size of sheaths required. However, with increasing catheter shaft lengths, in addition to new thin-walled sheaths allowing for downsizing, the ability to perform transradial interventions on infrainguinal and infrageniculate vessels has been more readily facilitated...
June 1, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29791668/phlebitis-and-infiltration-vascular-trauma-associated-with-the-peripheral-venous-catheter
#7
Luciene Muniz Braga, Pedro Miguel Parreira, Anabela de Sousa Salgueiro Oliveira, Lisete Dos Santos Mendes Mónico, Cristina Arreguy-Sena, Maria Adriana Henriques
OBJECTIVE: to determine the incidence rate and risk factors for the nursing-sensitive indicators phlebitis and infiltration in patients with peripheral venous catheters (PVCs). METHOD: cohort study with 110 patients. Scales were used to assess and document phlebitis and infiltration. Socio-demographic variables, clinical variables related to the PVC, medication and hospitalization variables were collected. Descriptive and inferential analysis and multivariate logistic models were used...
2018: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/29791033/diabetes-related-lower-extremity-complications-are-a-leading-cause-of-the-global-burden-of-disability
#8
P A Lazzarini, R E Pacella, D G Armstrong, J J van Netten
Globally ~435 million people have diabetes [1], and an estimated 19-34% (~83-148 million people) of those will be expected to develop foot ulcers in their lifetime [2]. Foot ulcers are typically precipitated by other diabetes-related lower-extremity complications, (DRLECs) including peripheral neuropathy and peripheral vascular disease [2,3]. Collectively, DRLECs are a leading cause of infection, hospitalization and amputation outcomes [2-5], yet, these outcomes are readily preventable with evidence-based care [6,7]...
May 23, 2018: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/29790970/balloon-occlusion-testing-to-assess-retinal-collateral-and-predict-visual-outcomes-in-the-management-of-a-fusiform-intraorbital-ophthalmic-artery-aneurysm-technical-note-and-literature-review
#9
Mithun G Sattur, Matthew E Welz, Bernard R Bendok, Jeffrey W Miller
BACKGROUND AND IMPORTANCE: Aneurysms of the ophthalmic artery (OA) within the orbit and optic canal are extremely rare. Given the peripheral location of these aneurysms and the fact that most are fusiform, parent artery occlusion is preferred for symptomatic aneurysms. However, the impact of OA occlusion on vision is not always innocuous. Balloon occlusion testing (BOT) of the OA has the potential to gauge the possibility of visual compromise, in addition to assessing collaterals. While BOT has been assessed for carotid artery occlusion, its role in OA occlusion has not been well defined...
May 22, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29790570/-%C3%A2-man-in-the-barrel%C3%A2-syndrome-atypical-manifestation-of-giant-cell-arteritis
#10
Y Calle-Lopez, A F Fernandez-Ramirez, E Franco-Dager, J G Gomez-Lopera, A L Vanegas-Garcia
INTRODUCTION: «Man-in-the-barrel» syndrome refers to diplegia of the upper extremities in which mobility of the head and lower limbs is preserved. Brachial plexitis that presents as «man-in-the-barrel» syndrome is an unusual manifestation of giant cell arteritis. We report a case of C5-C6 plexitis as part of the clinical features of a patient with giant cell arteritis. CASE REPORT: A 70-year-old male with a two-month history of weight loss, headache, facial pain and jaw claudication, associated with a persistent elevation of acute phase reactants and bilateral brachial plexopathy, with no evidence of neck or brain injuries or occult neoplasm and with negative autoimmunity tests...
June 1, 2018: Revista de Neurologia
https://www.readbyqxmd.com/read/29789865/the-roles-of-early-surgery-and-comorbid-conditions-on-outcomes-of-severe-necrotizing-soft-tissue-infections
#11
Rifat Latifi, Apar S Patel, David J Samson, Elizabeth H Tilley, Saranda Gashi, Roberto Bergamaschi, Ayman El-Menyar
PURPOSE: Severe necrotizing soft-tissue infections (NSTIs) require immediate early surgical treatment to avoid adverse outcomes. This study aims to determine the impact of early surgery and comorbid conditions on the outcomes of NSTIs. METHODS: A retrospective cohort study was performed on all subjects presenting with NSTI at an academic medical center between 2005 and 2016. Patients were identified based on ICD codes. Those under the age of 18 or with intraoperative findings not consistent with NSTI diagnosis were excluded...
May 22, 2018: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/29789335/prediction-of-thrombotic-and-bleeding-events-after-percutaneous-coronary-intervention-credo-kyoto-thrombotic-and-bleeding-risk-scores
#12
Masahiro Natsuaki, Takeshi Morimoto, Kyohei Yamaji, Hirotoshi Watanabe, Yusuke Yoshikawa, Hiroki Shiomi, Yoshihisa Nakagawa, Yutaka Furukawa, Kazushige Kadota, Kenji Ando, Takashi Akasaka, Keiichi Igarashi Hanaoka, Ken Kozuma, Kengo Tanabe, Yoshihiro Morino, Toshiya Muramatsu, Takeshi Kimura
BACKGROUND: Prediction of thrombotic and bleeding risk is important to optimize antithrombotic therapy after percutaneous coronary intervention. METHODS AND RESULTS: We developed the prediction rules for thrombotic and bleeding events separately in Japanese patients. Derivation and validation cohorts consisted of 4778 patients from CREDO-Kyoto (Coronary Revascularization Demonstrating Outcome Study in Kyoto) registry cohort 2 and 4669 patients from RESET (Randomized Evaluation of Sirolimus-Eluting Versus Everolimus-Eluting Stent Trial) and NEXT (Nobori Biolimus-Eluting Versus Xience/Promus Everolimus-Eluting Stent Trial)...
May 22, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29788500/microvascular-dysfunction-following-multi-walled-carbon-nanotube-exposure-is-mediated-by-thrombospondin-1-receptor-cd47
#13
W Kyle Mandler, Timothy R Nurkiewicz, Dale W Porter, Eric E Kelley, I Mark Olfert
Pulmonary exposure to multi-walled carbon nanotubes (MWCNT) disrupts peripheral microvascular function. Thrombospondin-1 (TSP-1) is highly expressed during lung injury and has been shown to alter microvascular reactivity. It is unclear exactly how TSP-1 exerts effects on vascular function, but we hypothesized that the TSP-1 receptor CD47 may mediate changes in vasodilation.Wildtype (WT) or CD47 knockout (CD47 KO) C57B6/J-background animals were exposed to 50 µg of MWCNT or saline control via pharyngeal aspiration...
May 21, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29787601/impact-of-vascular-endothelial-growth-factor-vegf-and-vascular-endothelial-growth-factor-receptor-vegfr-single-nucleotide-polymorphisms-on-outcome-in-gastroenteropancreatic-neuroendocrine-neoplasms
#14
Rossana Berardi, Mariangela Torniai, Stefano Partelli, Corrado Rubini, Silvia Pagliaretta, Agnese Savini, Vanessa Polenta, Matteo Santoni, Riccardo Giampieri, Sofia Onorati, Federica Barucca, Alberto Murrone, Francesca Bianchi, Massimo Falconi
Angiogenesis represents a key event in cancer development, leading to local invasion e metastatization, and might be considered a basic feature in gastroenteropancreatic neuroendocrine neoplasms (GEP-NENs) with a high expression of angiogenic molecules. We aimed to analyze the prognostic and predictive role of angiogenic factors in GEP-NENs through the analysis of single nucleotide polymorphisms (SNPs) of VEGF-A, VEGFR2 and VEGFR3. The genomic DNA of 58 consecutive patients with GEP-NENs treated at our Institution was extracted from peripheral blood...
2018: PloS One
https://www.readbyqxmd.com/read/29786412/the-use-of-scoring-balloons-in-the-superficial-femoral-artery
#15
Simon Bays
Percutaneous transluminal angioplasty and stenting is becoming increasingly the first line treatment for patients with both claudication and critical limb ischaemia instead of surgery, with the aim of returning the patient's quality of life in the former and preventing amputation. Drug eluting technologies have seen a large surge in popularity in recent years, and significant patient benefits have been seen with the use of drug eluting stents and balloons over the use of plain balloon angioplasty. Unfortunately in many patients with arterial disease there is significant vessel wall calcification - this can theoretically be a barrier to drug delivery, and can also be a contributing factor to flow limiting dissection and the subsequent need for bail out stenting...
May 22, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29786410/percutaneous-deep-venous-arterialization-in-patients-with-critical-limb-ischemia-a-technical-note
#16
Steven Kum, Eline Huizing, Michiel A Schreve, Çagdas Ünlü, Roberto Ferraresi, Lasitha B Samarakoon, Daniel A van den Heuvel
Critical limb ischemia (CLI) is the presentation of end stage peripheral arterial disease and typically presents with rest pain, ulceration and gangrene. The outcome of conservative treatment is poor and often leads to amputations. Arterial revascularization plays an important role in amputation prevention. Unfortunately, a significant percentage of CLI patients cannot be revascularized and subsequently end up with a palliative amputation. This has led to the need and exploration of new treatment options in this no option subgroup of CLI...
May 22, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29785335/raised-vulvar-lesions-be-aware
#17
Fernanda S Resende, Claudio Conforti, Roberta Giuffrida, Mayara Hamilko de Barros, Iris Zalaudek
Vulvar melanoma is a rare and deadly cancer in women, and the prognosis is often poor. There are limited studies on the dermoscopic features of vulvar melanoma. Described criteria include the presence of blue, gray, or white colors. Herein we present the clinical and dermoscopic characteristics of a hypopigmented and heavily pigmented nodule in a 92-year-old and an 80-year-old woman. Dermoscopy in the former revealed structureless milky-red to white areas, remnants of brown pigmentation at the base and polymorphic vessels, while the latter displayed structureless blue-gray areas with black dots and peripheral lines at the base...
April 2018: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/29784901/symptomatic-total-aortic-occlusion
#18
Bogdan Dutu, Dumitru Zdrenghea, Dana Pop, Gabriel Cismaru, Alexandru Martis, Adrian C Iancu
BACKGROUND Aortic occlusion, whether acute or subacute, is a rare but very serious entity with disastrous consequences if not treated in a timely fashion. Rapid diagnosis is crucial in this setting. In surgically treated patients there is a high degree of mortality and morbidity; therefore, percutaneous revascularization, whenever possible and independent of the available techniques, is much more desirable. CASE REPORT A 62-year-old woman with a history of diabetes mellitus, dyslipidemia, hypertension, and peripheral vascular disease, with previous femoral-femoral bypass for right common iliac artery occlusion, and with recent conventional angiography showing near occlusion of the ostial left common iliac artery (the donor vessel for the previous bypass), was referred to our hospital for conventional angioplasty...
May 22, 2018: American Journal of Case Reports
https://www.readbyqxmd.com/read/29784489/syncope-electrocardiographic-and-clinical-correlation
#19
REVIEW
Andrea Ungar, Martina Rafanelli
Syncope is a frequent condition, owing to a transient global cerebral hypoperfusion, that may depend on a reduction of vascular total peripheral resistance and/or cardiac output. Cardiac syncope doubled the risk of death from any cause and increased the risk of nonfatal and fatal cardiovascular events. Arrhythmias are the most common cardiac causes of syncope. Both bradyarrhythmias and tachyarrhythmias may predispose to syncope. The first line evaluation relies on clinical history, physical examination, active standing test, 12-lead echocardiogram...
June 2018: Cardiac Electrophysiology Clinics
https://www.readbyqxmd.com/read/29783975/relationship-between-pulmonary-function-and-peripheral-vascular-function-in-older-chinese-guangzhou-biobank-cohort-study-cvd
#20
Jing Pan, Lin Xu, Tai Hing Lam, Chao Qiang Jiang, Wei Sen Zhang, Feng Zhu, Ya Li Jin, G Neil Thomas, Kar Keung Cheng, Peymane Adab
BACKGROUND: Findings describing the relationship between pulmonary function and peripheral vascular function have been inconclusive. We explored this relationship in Guangzhou Biobank Cohort Study-Cardiovascular Subcohort (GBCS-CVD). METHODS: Brachial-ankle pulse wave velocity (baPWV) and ankle brachial index (ABI) were measured by a waveform analyser, and pulmonary function by turbine flowmeter spirometry. Predicted forced expiratory volume in 1 s (FEV1 ) and forced vital capacity (FVC) were derived using equations for Chinese...
May 21, 2018: BMC Pulmonary Medicine
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