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https://www.readbyqxmd.com/read/28922146/preliminary-clinical-evaluation-of-automated-analysis-of-the-sublingual-microcirculation-in-the-assessment-of-patients-with-septic-shock-comparison-of-automated-versus-semi-automated-software
#1
Nivin Sharawy, Ahmed Mukhtar, Sufia Islam, Reham Mahrous, Hassan Mohamed, Mohamed Ali, Amr Abd El Hakeem, Osama Hossny, Amera Refaa, Ahmed Saka, Vladimir Cerny, Sara Whynot, Ron George, Christian Lehmann
INTRODUCTION: The outcome of patients in septic shock has been shown to be related to changes within the microcirculation. Modern imaging technologies are available to generate high resolution video recordings of the microcirculation in humans. However, evaluation of the microcirculation is not yet implemented in the routine clinical monitoring of critically ill patients. This is mainly due to large amount of time and user interaction required by the current video analysis software. The aim of this study was to validate a newly developed automated method (CCTools®) for microcirculatory analysis of sublingual capillary perfusion in septic patients in comparison to standard semi-automated software (AVA3®)...
September 11, 2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28885470/poor-microcirculatory-flow-dynamics-are-associated-with-endothelial-cell-damage-and-glycocalyx-shedding-following-traumatic-hemorrhagic-shock
#2
David N Naumann, Jon Hazeldine, Mark J Midwinter, Sam D Hutchings, Paul Harrison
BACKGROUND: Endothelial cell damage and glycocalyx shedding following trauma can increase the risk of inflammation, coagulopathy, vascular permeability and death. Bedside sublingual video-microscopy may detect worse flow and perfusion associated with this endotheliopathy. We compared markers of endotheliopathy with physical flow dynamics following traumatic hemorrhagic shock (THS). METHODS: Sublingual incident dark field video-microscopy was performed at three time-points following injury (<10h; 10-30h; and 30-50h)...
September 5, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28862067/pushing-the-envelope-a-treat-and-repair-strategy-for-patients-with-advanced-pulmonary-hypertension-associated-with-congenital-heart-disease
#3
Rebecca Johnson Kameny, Elizabeth Colglazier, Hythem Nawaytou, Phillip Moore, V Mohan Reddy, David Teitel, Jeffrey R Fineman
Pulmonary arterial hypertension (PAH) is a frequent complication of congenital heart disease as a consequence of altered pulmonary hemodynamics with increased pulmonary blood flow and pressure. The development of pulmonary vascular disease (PVD) in this patient population is an important concern in determining operative strategy. Early, definitive surgical repair, when possible, is the best therapy to prevent and treat PVD. However, this is not possible in some patients because they either presented late, after the development of PVD, or they have complex lesions not amenable to one-step surgical correction, including patients with single ventricle physiology, who have a continuing risk of developing PVD...
July 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28855572/tribochemistry-of-adaptive-integrated-interfaces-at-boundary-lubricated-contacts
#4
Shanhong Wan, Anh Kiet Tieu, Yana Xia, Liping Wang, Dongshan Li, Guangan Zhang, Hongtao Zhu, Bach H Tran, David R G Mitchell
Understanding how an adaptive integrated interface between lubricant additives and solid contacts works will enable improving the wear and friction of moving engine components. This work represents the comprehensive characterization of compositional and structural orientation at the sliding interface from the perspective of surface/interface tribochemistry. The integrated interface of a lubricant additive-solid resulting from the friction testing of Graphite-like carbon (GLC) and PVD-CrN coated rings sliding against cast iron under boundary lubrication was studied...
August 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807201/overexpression-of-thioredoxin1-enhances-functional-recovery-in-a-mouse-model-of-hind-limb-ischemia
#5
Inam A Shaikh, Muhammad Tipu Rishi, Mark Youssef, Vaithinathan Selvaraju, Mahesh Thirunavukkarasu, Gopi Ukani, Rajesh Lakshmanan, J Alexander Palesty, Nilanjana Maulik
BACKGROUND: There is keen interest in finding nonsurgical treatments for peripheral vascular disease (PVD). Previously, we demonstrated that selective activation of Thioredoxin1 (Trx1), a 12-kDa cytosolic protein, initiates redox-dependent signaling and promotes neovascularization after ischemic heart disease. Therefore, Trx1 might possess immense potential to not only treat murine hind limb ischemia (HLI) through effective angiogenesis but also provide PVD patients with nonsurgical therapy to enhance neovascularization and improve blood perfusion...
August 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28773207/characterization-of-the-micro-abrasive-wear-in-coatings-of-tac-hfc-au-for-biomedical-implants
#6
Pablo Guzmán, Luis Yate, Mercy Sandoval, Jose Caballero, Willian Aperador
The object of this work was the deposition of a Ta-Hf-C thin film with a gold interlayer on stainless steel, via the physical vapor deposition (PVD) technique, in order to evaluate the properties of different systems subjected to micro-abrasive wear phenomena generated by alumina particles in Ringer's solution. The surface characterization was performed using a scanning electron microscope (SEM) and atomic force microscope (AFM). The crystallographic phases exhibited for each coating were obtained by X-ray diffraction (XRD)...
July 25, 2017: Materials
https://www.readbyqxmd.com/read/28763877/-efficacy-of-pvd-regimen-combined-with-imrt-for-early-stage-extranodal-nasal-nk-t-cell-lymphoma
#7
Y Zhang, Y H Huang, Y F Hu, Q L Liu, T Wu
Objective: To evaluate the efficacy of PVD chemo-regimen (Pegaspargase, vincristine and dexamethasone) combined with intensity-modulated radiotherapy (IMRT) for patients with early-stage extranodal nasal NK/T-cell lymphoma (ENKL). Methods: Clinical data of 52 patients with early-stage ENKL were collected during May 2010 and June 2015 in Department of Lymphoma, Cancer Hospital of Guizhou Medical University, and these patients firstly received a concurrent chemoradiotherapy of two-cycle of PVD and IMRT (gross tumor volume primary: 12...
July 11, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28752274/renal-artery-stenosis-new-findings-from-the-coral-trial
#8
REVIEW
Rajesh Gupta, Salem Assiri, Christopher J Cooper
PURPOSE OF REVIEW: The goal of this review is to summarize recent advances in the field and highlight important new insights from the Cardiovascular Outcomes in Renal Atherosclerotic Lesions (CORAL) trial regarding the optimal management of patients with renal artery stenosis (RAS). RECENT FINDINGS: The CORAL trial demonstrated that subjects with RAS had similar outcomes whether randomized to optimal medical therapy alone or optimal medical therapy plus renal artery stenting...
September 2017: Current Cardiology Reports
https://www.readbyqxmd.com/read/28732590/cost-utility-of-evaluation-for-posterior-vitreous-detachment-and-prophylaxis-of-retinal-detachment
#9
Nicolas A Yannuzzi, Jonathan S Chang, Gary C Brown, William E Smiddy
PURPOSE: To evaluate the costs and cost-utility of examination for posterior vitreous detachment (PVD) and treatment of associated pathology, and of managing various other peripheral retinal disorders to prevent retinal detachment (RD). DESIGN: A decision analysis model of cost-utility. PARTICIPANTS: There were no participants. METHODS: Published retrospective data on the natural course of PVD, retinal tears, and lattice degeneration were used to quantitate the visual benefits of examination and treatment...
July 18, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28731900/micro-and-macro-circulatory-changes-during-sepsis-and-septic-shock-in-a-rat-model
#10
Tianfeng Hua, Xiaobo Wu, Wei Wang, Hao Li, Jennifer Bradley, Mary Ann Peberdy, Joseph P Ornato, Wanchun Tang
Microcirculation is the motor of sepsis. In the present study, we investigated whether microcirculatory alterations occur prior to changes of systemic hemodynamics in a rat model of cecum ligation and puncture (CLP)-induced sepsis. We further investigated renal microcirculatory changes during sepsis and compared those with buccal microcirculation. Twelve male Sprague-Dawley rats were randomized into a sham control group (n = 6) and a CLP group (n = 6). Perfused microvessel density (PVD) and microvascular flow index (MFI) were evaluated using sidestream dark field (SDF) video microscopy at baseline, 60, 120, 180, 240, 300, and 360 minutes following CLP...
July 20, 2017: Shock
https://www.readbyqxmd.com/read/28725290/the-discovery-of-the-flammer-syndrome-a-historical-and-personal-perspective
#11
REVIEW
Josef Flammer, Katarzyna Konieczka
This review describes the clinical and basic research that led to the description of Flammer syndrome. It is narrated from a personal perspective. This research was initiated by the observation of an increased long-term fluctuation of visual fields in a subgroup of glaucoma patients. As these patients had strikingly cold hands, peripheral blood flow was tested with a capillary microscopy, and vasospastic syndrome (VS) was diagnosed. Further studies on these patients revealed frequently weakened autoregulation of ocular blood flow and increased flow resistivity in retroocular vessels...
June 2017: EPMA Journal
https://www.readbyqxmd.com/read/28708815/incidence-of-posterior-vitreous-detachment-after-femtosecond-lasik-compared-with-microkeratome-lasik
#12
Moataz Hamed Osman, Noha Mahmoud Khalil, Mohamed-Sameh El-Agha
PURPOSE: To compare the incidence of posterior vitreous detachment (PVD) after femtosecond and microkeratome laser in situ keratomileusis (LASIK). SETTING: Rowad Correction Centre, Cairo, Egypt (a private center affiliated to Cairo University). DESIGN: Prospective, nonrandomized comparative unmasked study. METHODS: The study was conducted at a single laser center. Eligible patients chose between femtosecond and microkeratome LASIK after appropriate counseling...
September 2017: Cornea
https://www.readbyqxmd.com/read/28707602/ginkgo-biloba-extract-in-vascular-protection-molecular-mechanisms-and-clinical-applications
#13
Jinfan Tian, Yue Liu, Keji Chen
Background Leaves of Ginkgo biloba, a "living fossil," have been used as traditional herbal medicine for hundreds of years in China. Currently, its application in vascular protection is gaining much attention. Methods In this manuscript, preclinical studies were reviewed to discuss various mechanisms underlying the vascular protection by Ginkgo biloba extract (GBE). Additionally, we reviewed clinical studies to present the application of GBE in the ischaemic disease. Results GBE, a commonly used as a dietary supplement, has been shown to act as an antioxidant and free-radical scavenger, a membrane stabilizer, an inhibitor of the platelet-activating factor, a vasodilator, and a regulator of metabolism...
July 12, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28697925/variable-expressivity-of-a-founder-mutation-in-the-eif2ak4-gene-in-hereditary-pulmonary-veno-occlusive-disease-and-its-impact-on-survival
#14
Paula Navas Tejedor, Julián Palomino Doza, Jair Antonio Tenorio Castaño, Ana Belén Enguita Valls, José Julián Rodríguez Reguero, Amaya Martínez Meñaca, Ignacio Hernández González, Héctor Bueno Zamora, Pablo Daniel Lapunzina Badía, Pilar Escribano Subías
INTRODUCTION AND OBJECTIVES: Hereditary pulmonary veno-occlusive disease (PVOD) has been associated with biallelic mutations in EIF2AK4 with the recent discovery of a founder mutation in Iberian Romani patients with familial PVOD. The aims of this study were phenotypical characterization and survival analysis of Iberian Romani patients with familial PVOD carrying the founder p.Pro1115Leu mutation in EIF2AK4, according to their tolerance to pulmonary vasodilators (PVD). Familial genetic screening was conducted, as well as assessment of sociocultural determinants with a potential influence on disease course...
July 8, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28688714/restenosis-predictors-after-carotid-angioplasty-and-stenting-and-its-influence-on-procedure-durability-single-center-experience
#15
Ossama Y Mansour, Abdelrahman Ibrahim, Mostafa Talaat
BACKGROUND: This article reports our experience regarding in-stent restenosis in the carotid arteries with special focus was given to angiographic morphology and clinical predictors of in-stent restenosis. METHODS: Between July 2008 and August 2011, 245 carotid angioplasty and stenting procedures were performed in 243 patients (172 men and 71 women). Stenting for de novo stenoses was performed in 214 (87.3%) carotid arteries, and 31 (12.7%) vessels were treated because of postsurgical restenosis...
October 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28685112/growth-structure-and-stability-of-sputter-deposited-mos2-thin-films
#16
Reinhard Kaindl, Bernhard C Bayer, Roland Resel, Thomas Müller, Viera Skakalova, Gerlinde Habler, Rainer Abart, Alexey S Cherevan, Dominik Eder, Maxime Blatter, Fabian Fischer, Jannik C Meyer, Dmitry K Polyushkin, Wolfgang Waldhauser
Molybdenum disulphide (MoS2) thin films have received increasing interest as device-active layers in low-dimensional electronics and also as novel catalysts in electrochemical processes such as the hydrogen evolution reaction (HER) in electrochemical water splitting. For both types of applications, industrially scalable fabrication methods with good control over the MoS2 film properties are crucial. Here, we investigate scalable physical vapour deposition (PVD) of MoS2 films by magnetron sputtering. MoS2 films with thicknesses from ≈10 to ≈1000 nm were deposited on SiO2/Si and reticulated vitreous carbon (RVC) substrates...
2017: Beilstein Journal of Nanotechnology
https://www.readbyqxmd.com/read/28684537/pomalidomide-bortezomib-and-dexamethasone-pvd-for-patients-with-relapsed-lenalidomide-refractory-multiple-myeloma
#17
Jonas Paludo, Joseph R Mikhael, Betsy R LaPlant, Alese E Halvorson, Shaji Kumar, Morie A Gertz, Suzanne R Hayman, Francis K Buadi, Angela Dispenzieri, John A Lust, Prashant Kapoor, Nelson Leung, Stephen J Russell, David Dingli, Ronald S Go, Yi Lin, Wilson I Gonsalves, Rafael Fonseca, P Leif Bergsagel, Vivek Roy, Taimur Sher, Asher A Chanan-Khan, Sikander Ailawadhi, A Keith Stewart, Craig B Reeder, Paul G Richardson, S Vincent Rajkumar, Martha Q Lacy
This phase I/II trial evaluated the maximum tolerated doses (MTD), safety and efficacy of pomalidomide, bortezomib and dexamethasone (PVD) combination in patients with relapsed, lenalidomide refractory, MM. In the phase I, dose level 1 consisted of pomalidomide 4mg PO days 1-21, bortezomib 1.0 mg/m(2) IV or SQ days 1,8,15,22 and dexamethasone 40mg PO days 1,8,15,22 given every 28 days. Bortezomib was increased to 1.3 mg/m(2) for dose level 2 and adopted in the phase 2 expansion cohort. We describe the results of 50 patients...
July 6, 2017: Blood
https://www.readbyqxmd.com/read/28680562/addressing-the-challenges-of-phenotyping-pediatric-pulmonary-vascular-disease
#18
REVIEW
Kara N Goss, Allen D Everett, Peter M Mourani, Christopher D Baker, Steven H Abman
Pediatric pulmonary vascular disease (PVD) and pulmonary hypertension (PH) represent phenotypically and pathophysiologically diverse disease categories, contributing substantial morbidity and mortality to a complex array of pediatric conditions. Here, we review the multifactorial nature of pediatric PVD, with an emphasis on improved recognition, phenotyping, and endotyping strategies for pediatric PH. Novel tailored approaches to diagnosis and treatment in pediatric PVD, as well as the implications for long-term outcomes, are highlighted...
March 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28677894/metallic-conductive-nanowires-elaborated-by-pvd-metal-deposition-on-suspended-dna-bundles
#19
Christophe Brun, Pierre-Henri Elchinger, Guillaume Nonglaton, Cheikh Tidiane-Diagne, Raluca Tiron, Aurélie Thuaire, Didier Gasparutto, Xavier Baillin
Metallic conductive nanowires (NWs) with DNA bundle core are achieved, thanks to an original process relying on double-stranded DNA alignment and physical vapor deposition (PVD) metallization steps involving a silicon substrate. First, bundles of DNA are suspended with a repeatable process between 2 µm high parallel electrodes with separating gaps ranging from 800 nm to 2 µm. The process consists in the drop deposition of a DNA lambda-phage solution on the electrodes followed by a naturally evaporation step...
July 5, 2017: Small
https://www.readbyqxmd.com/read/28671764/the-evaluation-of-the-non-invasive-msct-based-indices-for-the-diagnosis-and-prognosis-prediction-of-liver-cirrhosis
#20
Ling-Mei Feng, Shu-Juan Lei, Xin Zeng, Pei-Qin Wang, Ru-Tan Chen, Jian Wang, Xia Sheng, Pei-Mei Shi, Zong-Li Yuan, Wei-Fen Xie
PURPOSE: It is necessary to develop feasible and reliable non-invasive methods to determine liver function and predict complications in patients with liver cirrhosis. The aim of this study was to determine the value of CT-based easily available parameters in evaluating the severity of cirrhosis and predicting complications in Chinese cirrhotic patients. METHODS: CT-based morphological indices were determined in 167 cirrhotic patients and 244 healthy volunteers. The correlation of morphological indices with the Child-Pugh score/grade and complication of cirrhosis was analysed by Spearman correlation analysis...
July 3, 2017: Journal of Digestive Diseases
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