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https://www.readbyqxmd.com/read/28432341/detection-of-red-blood-cell-surface-antigens-by-probe-triggered-cell-collision-and-flow-retardation-in-an-autonomous-microfluidic-system
#1
Éva Sautner, Krisztián Papp, Eszter Holczer, Eszter L Tóth, Rita Ungai-Salánki, Bálint Szabó, Péter Fürjes, József Prechl
Microfluidic devices exploit combined physical, chemical and biological phenomena that could be unique in the sub-millimeter dimensions. The current goal of development of Point-of-Care (POC) medical devices is to extract the biomedical information from the blood. We examined the characteristics of blood flow in autonomous microfluidic devices with the aim to realize sensitive detection of interactions between particulate elements of the blood and the appropriately modified surfaces of the system. As a model experiment we demonstrated the fast analysis of the AB0 blood group system...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28410043/optimising-inhaler-technique-in-chronic-obstructive-pulmonary-disease-a-complex-issue
#2
Jo Riley, Phillip Krüger
Inhaled therapies play a central role in the management of chronic obstructive pulmonary disease (COPD); however, studies indicate that many patients do not use their inhaled medication as directed, resulting in decreased medication delivery and suboptimal disease control. Key factors that should be considered when evaluating whether patients are achieving optimal outcomes with inhaled therapies are: if patients are using a correct inhalation technique; if patients have adequate dexterity to use the prescribed inhaler; if patients have sufficient inspiratory flow rate to achieve adequate lung deposition (for dry powder inhalers); and if the inhaler is accepted by the patient...
April 13, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28403907/platypnea-orthodeoxia-syndrome-in-the-right-lateral-decubitus-position-a-case-report
#3
Ippei Tsuzuki, Kamon Iigaya, Takashi Matsubara, Shunsuke Takagi, Taku Inohara, Yasuyuki Ohgino, Toshio Imafuku
BACKGROUND: Platypnea-orthodeoxia syndrome is a rare syndrome characterized by dyspnea and hypoxia when the patient is sitting or standing. Here we report a case of platypnea-orthodeoxia syndrome caused by a right hemidiaphragmatic elevation with giant liver cyst that triggered a right-to-left shunt through the patent foramen ovale. This case report is the first presentation of a case secondary to hemidiaphragmatic elevation with giant liver cyst. In addition to this, a malposition of the pacemaker lead could be associated with platypnea-orthodeoxia syndrome in this case...
April 12, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28400037/predictors-of-no-reflow-during-primary-angioplasty-for-acute-myocardial-infarction-from-medical-college-hospital-trivandrum
#4
Padmajan Sabin, Alummoottil George Koshy, Prabha Nini Gupta, Pattu Valappil Sanjai, Kunjukrishanpilla Sivaprasad, Praveen Velappan, Radhakrishnan Vellikat Velayudhan
BACKGROUND: Primary angioplasty (PCI) for acute myocardial infarction is associated with no-reflow phenomenon, in about 5-25% of cases. Here we analysed the factors predicting no reflow . METHODS: This was a case control study of consecutive patients with acute myocardial infarction who underwent Primary PCI from August 2014 to February 2015. RESULTS: Of 181 patients who underwent primary PCI, 47 (25.9%) showed an angiographic no-reflow phenomenon...
April 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28387222/presynaptic-dopamine-synthesis-capacity-in-schizophrenia-and-striatal-blood-flow-change-during-antipsychotic-treatment-and-medication-free-conditions
#5
Daniel Paul Eisenberg, Lisa Yankowitz, Angela M Ianni, Dani Y Rubinstein, Philip D Kohn, Catherine E Hegarty, Michael D Gregory, José A Apud, Karen F Berman
Standard-of-care biological treatment of schizophrenia remains dependent upon antipsychotic medications, which demonstrate D2 receptor affinity and elicit variable, partial clinical responses via neural mechanisms that are not entirely understood. In the striatum, where D2 receptors are abundant, antipsychotic medications may affect neural function in studies of animals, healthy volunteers and patients, yet the relevance of this to pharmacotherapeutic actions remain unresolved. In this same brain region, some individuals with schizophrenia may demonstrate phenotypes consistent with exaggerated dopaminergic signaling, including alterations in dopamine synthesis capacity; however, the hypothesis that dopamine system characteristics underlie variance in medication-induced regional blood flow changes has not been directly tested...
April 7, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28367040/oral-administration-of-cilostazol-increases-ocular-blood-flow-in-patients-with-diabetic-retinopathy
#6
Duck Jin Hwang, Joo Young Shin, Hyeong Gon Yu
PURPOSE: To investigate the effect of cilostazol on ocular hemodynamics and to determine whether the administration of cilostazol increases the ocular blood flow in patients with diabetic retinopathy. METHODS: This prospective observational study investigated the effect of orally administered cilostazol on diabetic retinopathy. Before and after administration for 1 week, pulsatile ocular blood flow (POBF) and retrobulbar hemodynamics were measured using a POBF analyzer and transcranial Doppler imaging, respectively...
April 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28360090/testosterone-prevents-cutaneous-ischemia-and-necrosis-in-males-through-complementary-estrogenic-and-androgenic-actions
#7
Caroline Chenu, Marine Adlanmerini, Frederic Boudou, Elodie Chantalat, Anne-Laure Guihot, Celine Toutain, Isabelle Raymond-Letron, Patricia Vicendo, Alain-Pierre Gadeau, Daniel Henrion, Jean-Francois Arnal, Francoise Lenfant
OBJECTIVE: Chronic nonhealing wounds are a substantial medical concern and are associated with morbidity and mortality; thus, new treatment strategies are required. The first step toward personalized/precision medicine in this field is probably in taking sex differences into account. Impaired wound healing is augmented by ischemia, and we previously demonstrated that 17β-estradiol exerts a major preventive effect against ischemia-induced skin flap necrosis in female mice. However, the equivalent effects of testosterone in male mice have not yet been reported...
March 30, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28359612/evaluation-of-one-way-valves-used-in-medical-devices-for-prevention-of-cross-contamination
#8
Poulomi Nandy, Megan Young, Shanil P Haugen, Kristy Katzenmeyer-Pleuss, Edward A Gordon, Stephen M Retta, Steven C Wood, Anne D Lucas
BACKGROUND: One-way valves used in day use devices (used on multiple patients throughout a day without reprocessing between patients) are intended to reduce the potential for cross-contamination between patients resulting from the backflow of patient fluids. One-way valves are typically designed to withstand high levels of back pressure before failure; however, they may not be explicitly designed as a means of infection control as used in medical device applications. METHODS: Five different medical grade one-way valves were placed in low pressure configurations...
March 27, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28352083/novel-contactless-approach-for-assessment-of-venous-occlusion-plethysmography-by-video-recordings-at-the-green-illumination
#9
Alexei A Kamshilin, Valeriy V Zaytsev, Oleg V Mamontov
Occlusion plethysmography is an important method for assessment of the status of the cardiovascular system, which provides valuable information concerning arterial and venous blood flow, including mechanisms of their regulation. All up-to-date systems estimate change of the limb's volume during occlusion by contact-type sensors. The objective of the research is demonstration of feasibility of the novel approach to measuring the blood flow during venous occlusion by using imaging photoplethysmography (PPG). Twenty healthy individuals participated in the experiment...
March 28, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28338492/the-evolution-of-current-research-impact-metrics-from-bibliometrics-to-altmetrics
#10
Joseph S Butler, I David Kaye, Arjun S Sebastian, Scott C Wagner, Patrick B Morrissey, Gregory D Schroeder, Christopher K Kepler, Alexander R Vaccaro
The prestige of publication has been based on traditional citation metrics, most commonly journal impact factor. However, the Internet has radically changed the speed, flow, and sharing of medical information. Furthermore, the explosion of social media, along with development of popular professional and scientific websites and blogs, has led to the need for alternative metrics, known as altmetrics, to quantify the wider impact of research. We explore the evolution of current research impact metrics and examine the evolving role of altmetrics in measuring the wider impact of research...
March 23, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28327177/intestinal-t-lymphocyte-homing-is-associated-with-gastric-emptying-and-epithelial-barrier-function-in-critically-ill-a-prospective-observational-study
#11
Christian Greis, Zohal Rasuly, Rolf A Janosi, Lambros Kordelas, Dietrich W Beelen, Tobias Liebregts
BACKGROUND: Impaired gastric emptying is common in critically ill patients. Intestinal dysmotility, a major cause of feed intolerance, may foster infectious complications due to mucosal barrier disruption. However, little is known about gut-directed immune activation, intestinal barrier function and its association with impaired gastric emptying in critically ill patients at ICU admission. METHODS: We conducted a prospective observational study at two tertiary care medical ICUs...
March 22, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28323966/persistent-reduction-of-circulating-myeloid-calcifying-cells-in-acromegaly-relevance-to-the-bone-vascular-axis
#12
Gian Paolo Fadini, Francesca Dassie, Roberta Cappellari, Mariasara Persano, Saula Vigili de Kreutzenberg, Chiara Martini, Matteo Parolin, Angelo Avogaro, Roberto Vettor, Pietro Maffei
Context: Acromegaly is a systemic disease characterized by persistent bone pathology and excess cardiovascular mortality. Despite multiple concomitant risk factors, atherosclerosis does not seem to be accelerated in acromegaly. Objective: To compare the levels of circulating myeloid calcifying cells (MCCs), which promote ectopic calcification and inhibit angiogenesis, in individuals with or without acromegaly. Design: Cross-sectional case-control study...
March 17, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28322012/3d-printed-multidrug-eluting-stent-from-graphene-nanoplatelet-doped-biodegradable-polymer-composite
#13
Santosh K Misra, Fatemeh Ostadhossein, Ramya Babu, Joseph Kus, Divya Tankasala, Andre Sutrisno, Kathleen A Walsh, Corinne R Bromfield, Dipanjan Pan
Patients with percutaneous coronary intervention generally receive either bare metal stents or drug-eluting stents to restore the normal blood flow. However, due to the lack of stent production with an individual patient in mind, the same level of effectiveness may not be possible in treating two different clinical scenarios. This study introduces for the first time the feasibility of a patient-specific stenting process constructed from direct 3D segmentation of medical images using direct 3D printing of biodegradable polymer-graphene composite with dual drug incorporation...
March 21, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28291726/change-in-angiogram-derived-management-strategy-of-patients-with-chest-pain-when-some-ffr-data-are-available-how-consistent-is-the-effect
#14
Vinayak Nagaraja, Mamas Mamas, Michael Mahmoudi, Campbell Rogers, Nick Curzen
BACKGROUND: The assessment of patients presenting with angina using invasive angiography alone is imperfect. By contrast, fractional flow reserve (FFR) allows for assessment of lesion-specific ischemia, which is predictive of clinical outcome. A series of studies has demonstrated that the availability of FFR data at the time of diagnostic angiography leads to significant differences in the management of those patients. HYPOTHESIS: The objective of this paper is to describe assess the consistency in the difference in management resulting from an FFR-directed versus and angiogram-directed strategy in appropriate observational and randomized trials...
February 27, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28290926/soldier-readiness-processing-time-for-a-new-paradigm-in-managing-musculoskeletal-injuries-after-deployment
#15
Daniel I Rhon, Kerrie J Golden, Amy J Trevino, Brian S Hatler
BACKGROUND: The drowning impact that musculoskeletal injuries (MSI) have on Soldier readiness, deployability, and escalating health care costs is growing. These injuries are associated with approximately 25 million lost duty days each year. The need to curb costs and improve efficacy and efficiency of health care delivery is pressing. This requires the consideration of new paradigms for clinical pathways and health care delivery processes. Soldiers returning from a deployment go through a screening process to ensure any medical, dental, and administrative issues are adequately addressed...
March 2017: Military Medicine
https://www.readbyqxmd.com/read/28279384/can-functional-testing-for-ischemia-and-viability-guide-revascularization
#16
REVIEW
Lisa M Mielniczuk, Gabor G Toth, Joe X Xie, Bernard De Bruyne, Leslee J Shaw, Rob S Beanlands
Cardiac imaging procedures are a cornerstone of the diagnosis and management of patients with cardiac disease. The optimal management of the patient with stable ischemic heart disease or ischemic heart failure often rests on the totality of symptom burden, patient risk, and disease severity, whether assessed anatomically or functionally. Recent trials have demonstrated the power of flow measurements to direct revascularization as well as the strengths and limitations of ischemia and viability/hibernation imaging as markers of risk to direct interventions...
March 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28268389/optimization-of-extra-corporeal-enteral-prosthesis-ecep-by-selective-aspiration-of-the-digestive-flow
#17
J R Nzamushe, J P Sozanski, J De Jonckheere, M Jeanne, R Logier
Reinfusion is a medical process which collects digestive flow from a proximal stoma to a distal one, in patient who had a post-operative double enteral stoma. This process avoids the risk of under nutrition and frees the patient from a Total Parenteral Nutrition to offset the digestive loss. Most of the previous ways of reinfusion first collect the digestive flow into a bag before instillation. We developed an ambulatory reinfusion pump (ECEP) which had the advantage to collect the digestive flow directly from the proximal stoma and to pump it to the distal one...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28267710/dasatinib-synergises-with-irinotecan-to-suppress-hepatocellular-carcinoma-via-inhibiting-the-protein-synthesis-of-plk1
#18
Li Xu, Yuanrun Zhu, Jinjin Shao, Min Chen, Hao Yan, Guanqun Li, Yi Zhu, Zhifei Xu, Bo Yang, Peihua Luo, Qiaojun He
BACKGROUND: Hepatocellular carcinoma (HCC) is one of the most common types of malignant tumour and has poor prognosis. Currently, systematic chemotherapy is the only approach to prolong survival. Thus the development of new treatment regimens is urgently needed to improve the therapeutic efficacy. Our study intended to assess the combination of dasatinib and irinotecan against HCC and made an effort to develop a potential medical choice for advanced HCC patients. METHODS: We used SRB colorimetric assay and clonogenic assay to assess antitumour effect in vitro and HCC xenograft model to assess antitumour effect in vivo...
April 11, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28264062/interactive-reconstructions-of-cranial-3d-implants-under-mevislab-as-an-alternative-to-commercial-planning-software
#19
Jan Egger, Markus Gall, Alois Tax, Muammer Ücal, Ulrike Zefferer, Xing Li, Gord von Campe, Ute Schäfer, Dieter Schmalstieg, Xiaojun Chen
In this publication, the interactive planning and reconstruction of cranial 3D Implants under the medical prototyping platform MeVisLab as alternative to commercial planning software is introduced. In doing so, a MeVisLab prototype consisting of a customized data-flow network and an own C++ module was set up. As a result, the Computer-Aided Design (CAD) software prototype guides a user through the whole workflow to generate an implant. Therefore, the workflow begins with loading and mirroring the patients head for an initial curvature of the implant...
2017: PloS One
https://www.readbyqxmd.com/read/28236931/technical-aspects-of-transcarotid-artery-revascularization-using-the-enroute-transcarotid-neuroprotection-and-stent-system
#20
Mahmoud B Malas, Jose Leal, Vikram Kashyap, Richard Paul Cambria, Christopher J Kwolek, Enrique Criado
Transcarotid artery revascularization (TCAR) with the ENROUTE transcarotid neuroprotection and stent system (Silk Road Medical, Inc, Sunnyvale, Calif) combines surgical principles of neuroprotection with less invasive endovascular techniques to treat high grade stenosis in the carotid artery. The ENROUTE Neuroprotection System allows the surgeon to directly access the common carotid artery to initiate high rate temporary blood flow reversal to protect the brain while performing carotid angioplasty and stenting...
March 2017: Journal of Vascular Surgery
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