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Infection vascular

María Andrea Hernández-Castañeda, Smart Mbagwu, Kehinde Adebayo Babatunde, Michael Walch, Luis Filgueira, Pierre-Yves Mantel
Malaria is a life-threatening disease caused by Plasmodium parasites, with P. falciparum being the most prevalent on the African continent and responsible for most malaria-related deaths globally. Several factors including parasite sequestration in tissues, vascular dysfunction, and inflammatory responses influence the evolution of the disease in malaria-infected people. P. falciparum-infected red blood cells (iRBCs) release small extracellular vesicles (EVs) containing different kinds of cargo molecules that mediate pathogenesis and cellular communication between parasites and host...
February 14, 2018: Journal of Visualized Experiments: JoVE
Victoria E Jackson, Helen Hurst, Sandip Mitra
INTRODUCTION: Arteriovenous fistulae remain the gold standard of vascular access in haemodialysis. There is currently no consensus on standardised methods of monitoring arteriovenous fistulae. Assessment techniques and practice remain widely variable. The purpose of this study is to determine whether existing evidence supports physical assessment as an effective tool and a good predictor of arteriovenous fistulae dysfunction to allow for timely intervention and improve outcomes. METHODS: A literature search was performed using CINAHL, PubMed, Medline and BNI databases and relevant search terms...
March 1, 2018: Journal of Vascular Access
Mariusz Kusztal, Krzysztof Nowak
For arrhythmia treatment or sudden cardiac death prevention in hemodialysis patients, there is a frequent need for placement of a cardiac implantable electronic device (pacemaker, implantable cardioverter defibrillator, or cardiac resynchronization device). Leads from a cardiac implantable electronic device can cause central vein stenosis and carry the risk of tricuspid regurgitation or contribute to infective endocarditis. In patients with end-stage kidney disease requiring vascular access and cardiac implantable electronic device, the best strategy is to create an arteriovenous fistula on the contralateral upper limb for a cardiac implantable electronic device and avoidance of central vein catheter...
March 1, 2018: Journal of Vascular Access
Antonio Borzelli, Andrea Paladini, Francesco Giurazza, Salvatore Tecame, Flavio Giordano, Enrico Cavaglià, Francesco Amodio, Fabio Corvino, Daniela Beomonte Zobel, Giulia Frauenfelder, Anna Giacoma Tucci, Raffaella Niola
Pulmonary sequestration is a congenital malformation characterized by dysplastic pulmonary tissue which receives blood supply by arterial systemic system, not in communication with tracheobronchial tree. Although it could be asymptomatic, it can also cause recurrent infections and hemoptysis, rarely massive and fatal. The conventional treatment consists in surgical resection of the pulmonary sequestration, but in the last few years endovascular embolization has been proposed as a valid therapeutic alternative...
February 2018: Radiology Case Reports
Nancy Kim, Roxanna Juarez, Angela D Levy
In patients with end-stage renal disease, the treatment of choice for most patients is renal transplantation. Complications that occur after kidney transplant can be broadly divided into vascular and non-vascular categories. Non-vascular complications can further be divided into surgical and medical categories. When evaluating renal transplant imaging, it is helpful to consider the occurrence of complications in a timeline from time of surgery. Ultrasound is often the first modality used for evaluation of renal transplants particularly in the early postoperative period...
March 17, 2018: Abdominal Radiology
Cyril Chivot, Hervé Deramond, Roger Bouzerar, Thierry Yzet
PURPOSE: To evaluate the feasibility and safety of using the FemoSeal vascular closure device (VCD) to seal 8F access sites during mechanical thrombectomy for stroke. METHODS: A retrospective review of a prospective database was undertaken to evaluate the safety and efficacy of femoral arterial closure using FemoSeal device in all patients who underwent mechanical thrombectomy using an 8F sheath between January 2015 and July 2017. Efficacy endpoints were the successful deployment of the system and haemostasis success...
March 14, 2018: European Journal of Vascular and Endovascular Surgery
Dubbaka Srujana, Manpreet Kaur, Jayanand Urkude, Anubha Rathi, Namrata Sharma, Jeewan S Titiyal
PURPOSE: To evaluate the functional and anatomical outcomes of repeat penetrating keratoplasty (PK) in optically failed therapeutic grafts. DESIGN: Prospective interventional case series METHODS: All cases admitted at the apex tertiary care centre for repeat keratoplasty following optically failed therapeutic PK were enrolled over a period of one year. Repeat optical PK was performed in all eyes. Primary outcome measures were postoperative graft clarity and visual acuity...
March 14, 2018: American Journal of Ophthalmology
Fabio L M Ricciardolo, Gert Folkerts, Anna Folino, Barbara Mognetti
Bradykinin, a pro-inflammatory molecule, and its related peptides have been studied for their effects on acute reactions in upper and lower airways, where they can be synthesised and metabolized after exposure to different stimuli including allergens and viral infection. Bradykinin B1 and B2 receptors are constitutively expressed in the airways on several residential and/or immune cells. Their expression can also be induced by inflammatory mediators, usually associated with eosinophil and neutrophil recruitment, such as IL-4, IL-13, TNF-α, IL-6 and IL-8, via intracellular MAPK and NF-κB signalling...
March 13, 2018: European Journal of Pharmacology
Christopher D Witiw, Fabrice Smieliauskas, John E O'Toole, Michael G Fehlings, Richard G Fessler
BACKGROUND: Surgery for cervical radiculopathy is often approached by either anterior cervical discectomy and fusion (ACDF) or posterior cervical foraminotomy (PCF). ACDF is more common; however, recent single center studies suggest comparable efficacy and significant cost savings with PCF in appropriately selected patients. OBJECTIVE: To compare utilization, adverse events, and costs for each approach from a national perspective. METHODS: Adults undergoing single level ACDF or PCF for cervical radiculopathy were included from a US commercial health insurance claims database spanning 2003 to 2014...
March 14, 2018: Neurosurgery
Felicia C Chow, Michael R Wilson, Kunling Wu, Ronald J Ellis, Ronald J Bosch, Benjamin P Linas
OBJECTIVE: To investigate the incidence of first-ever stroke/transient ischemic attack (TIA) and associated risk factors in a cohort of persons living with HIV infection (PLWH). DESIGN: Observational cohort study METHODS:: We determined incidence rates of first-ever stroke/TIA in PLWH after ART initiation from the AIDS Clinical Trials Group ALLRT cohort and its parent trials. Poisson regression models evaluated baseline and time-varying covariates as risk factors for stroke/TIA...
March 15, 2018: AIDS
Amjad M Husaini, Aafreen Sakina, Souliha R Cambay
Fusarium oxysporum, a ubiquitous soil-borne pathogen causes devastating vascular wilt in more than 100 plant species and ranks fifth among top ten fungal plant pathogens. It has emerged as a human pathogen too, causing infections in immune-compromised patients. It is, therefore, important to gain insight into the molecular processes involved in the pathogenesis of this trans-kingdom pathogen. A complex network comprising of interconnected and over lapping signal pathways; mitogen-activated protein kinase (MAPK) signaling pathways, Ras proteins, G-protein signaling components and their downstream pathways, components of the velvet (LaeA/VeA/VelB) complex and cAMP pathways, is involved in perceiving the host...
March 16, 2018: Molecular Plant-microbe Interactions: MPMI
Francisco Vaz-Guimaraes, Maria Koutourousiou, John R de Almeida, Elizabeth C Tyler-Kabara, Juan C Fernandez-Miranda, Eric W Wang, Carl H Snyderman, Paul A Gardner
OBJECTIVE Epidermoid and dermoid cysts may be found along the cranial base and are commonly resected via open transcranial approaches. The use of endoscopic endonasal approaches for resection of these tumors has been rarely reported. METHODS The authors retrospectively reviewed the medical records of 21 patients who underwent endoscopic endonasal surgery for epidermoid and dermoid cyst resection at the University of Pittsburgh Medical Center between January 2005 and June 2014. Surgical outcomes and variables that might affect the extent of resection and complications were analyzed...
March 16, 2018: Journal of Neurosurgery
Frantisek Nehaj, Juraj Sokol, Michal Mokan, Veronika Jankovicova, Frantisek Kovar, Marianna Kubaskova, Stanislav Mizera, Marian Mokan
The patient database at the First Department of Internal Medicine in Martin, the Central Slovak Institute for Cardiac and Vascular Diseases in Banska Bystrica, and the National Slovak Institute of Cardiovascular Diseases in Bratislava was searched to identify patients with benign tumors of the heart seen during the 5-year period between 2011 and 2016. Forty-one patients with primary cardiac myxomas were identified and their medical records were reviewed for details pertaining to presenting symptoms, staging modalities, treatment approaches, and outcomes...
2018: BioMed Research International
Rebecca Shirley, Janka Fazekas, Martin McNally, Alex Ramsden
Aim : This study aimed to define the costs of surgical management of chronic osteomyelitis where free tissue transfer was required in addition to debridement of bone, particularly the increased costs incurred by a return to theatre. We hypothesised that there would be a significantly greater cost when patients required re-exploration for vascular compromise. Method : We retrospectively analysed the costs of a consecutive series of sixty patient episodes treated at the Bone Infection Unit in Oxford from 2012 to 2015...
2018: Journal of Bone and Joint Infection
Nancy E Epstein
Background: The risk of spinal cord injury (SCI) due to decreased cord perfusion following thoracic/thoracoabdominal aneurysm surgery (T/TL-AAA) and thoracic endovascular aneurysm repair (TEVAR) ranges up to 20%. For decades, therefore, many vascular surgeons have utilized cerebrospinal fluid drainage (CSFD) to decrease intraspinal pressure and increase blood flow to the spinal cord, thus reducing the risk of SCI/ischemia. Methods: Multiple studies previously recommend utilizing CSFD following T/TL-AAA/TEVAR surgery to treat SCI by increasing spinal cord blood flow...
2018: Surgical Neurology International
Mark Gage, Frank Liporace, Kenneth Egol, Toni McLaurin
Treatment of traumatic bone defects is dictated by a multitude of clinical factors including the defect size, patient comorbidities, soft tissue condition, and the possibility of infection present in the defect. With a variety of treatment strategies described, it is critical to choose the approach that will maximize outcomes in addressing this difficult problem. When addressing small-scale defects, bone grafting is the primary treatment. For large-scale defects, there are two major options to consider: induced membrane technique and distraction osteogenesis...
March 2018: Bulletin of the Hospital for Joint Diseases
Linde Woudstra, Lynda J M Juffermans, Albert C van Rossum, Hans W M Niessen, Paul A J Krijnen
Infectious myocarditis is the result of an immune response to a microbial infection of the heart. The blood vessels of the heart, both the intramyocardial microvasculature and the large epicardial coronary arteries, play an important role in the pathogenesis of infectious myocarditis. First of all, in addition to cardiomyocytes, endothelial cells of the cardiac (micro)vasculature are direct targets for infection. Moreover, through the expression of adhesion molecules and antigen presenting Major Histocompatibility Complex molecules, the blood vessels assist in shaping the cellular immune response in infectious myocarditis...
March 14, 2018: Heart Failure Reviews
Shuo Yang, Tao Fan, Qi Hu, Weipan Xu, Jian Yang, Changwu Xu, Bofang Zhang, Jing Chen, Hong Jiang
MicroRNA-17-5p (miR-17-5p) was indicated to suppress the formation of blood vessels, which is associated with cardiac function after myocardial infarction. In this study, the relationship between miR-17-5p and cardiac function was researched. Human umbilical vein endothelial cells were infected with adenoviruses. Apoptosis was determined by Annexin V-7AAD/PI. Real-time RT-PCR was used to evaluate miR-17-5p and ERK levels. Western blotting was used to determine the levels of ERK, the anti-apoptosis protein bcl-2 and apoptosis proteins, including bax, caspase 3, and caspase 9...
March 13, 2018: Molecular Genetics and Genomics: MGG
Fernando González-Magaña, Héctor Omar Malagón-Hidalgo, Eugenio García-Cano, Roberto Vilchis-López, Adriana Fentanes-Vera, Fernan-Alejandra Ayala-Ugalde
Objectives: Airway management in patients with panfacial trauma is complicated. In addition to involving facial lesions, such trauma compromises the airway, and the use of intermaxillary fixation makes it difficult to secure ventilation by usual approaches (nasotracheal or endotracheal intubation). Submental airway derivation is an alternative to tracheostomy and nasotracheal intubation, allowing a permeable airway with minimal complications in complex patients. Materials and Methods: This is a descriptive, retrospective study based on a review of medical records of all patients with facial trauma from January 2003 to May 2015...
February 2018: Journal of the Korean Association of Oral and Maxillofacial Surgeons
Giovanni Matera, Maria Teresa Loria, Cinzia Peronace, Tatiana Catanzariti, Pio Settembre, Aida Giancotti, Angelo G Lamberti, Giorgio S Barreca, Luisa Galati, Gessica Dodaro, Maria Mazzitelli, Alessio Strazzulla, Carlo Torti, Angela Quirino, Maria Carla Liberto, Alfredo Focà
We aim to investigate some of the pathogenetic mediators of the human echinococcosis and to obtain updated epidemiological findings on cases of echinococcosis in Calabria, Southern Italy. Echinococcosis diagnosis was based on imaging, serological investigations, and molecular assay. Indeed, real-time PCR indicated the presence of G2/G3 genotypes of Echinococcus granulosus complex. Regarding pathogenesis, a relevant novel tool of immune depression should be deemed the reduced level of serum MCP-1. Also, we found a previously unreported VEGF, possibly associated with neovascularization requested by the parasite cyst metabolism...
2018: Mediators of Inflammation
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