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https://www.readbyqxmd.com/read/28628000/epigenetics-inflammation-and-metabolism-in-right-heart-failure-associated-with-pulmonary-hypertension
#1
Nolwenn Samson, Roxane Paulin
Right ventricular failure (RVF) is the most important prognostic factor for both morbidity and mortality in pulmonary arterial hypertension (PAH), but also occurs in numerous other common diseases and conditions, including left ventricle dysfunction. RVF remains understudied compared with left ventricular failure (LVF). However, right and left ventricles have many differences at the morphological level or the embryologic origin, and respond differently to pressure overload. Therefore, knowledge from the left ventricle cannot be extrapolated to the right ventricle...
June 19, 2017: Pulmonary Circulation
https://www.readbyqxmd.com/read/28624593/double-sequential-defibrillation-therapy-for-out-of-hospital-cardiac-arrests-the-london-experience
#2
Amber C Emmerson, Mark Whitbread, Rachael T Fothergill
BACKGROUND: Despite advances in treatment for out-of-hospital cardiac arrest (OHCA), a subgroup of patients remain in refractory ventricular fibrillation (RVF) during resuscitation. Recent evidence suggests that double sequential defibrillation (DSD), where two shocks are delivered to the patient in quick succession, may provide an effective therapy for RVF. This study describes the characteristics and survival outcomes of OHCA patients treated by ambulance clinicians using a local DSD protocol in an attempt to resolve RVF...
June 14, 2017: Resuscitation
https://www.readbyqxmd.com/read/28616499/emergence-of-wesselsbron-virus-among-black-rat-and-humans-in-eastern-senegal-in-2013
#3
Moussa M Diagne, Martin Faye, Oumar Faye, Abdourahmane Sow, Fanny Balique, Mbacké Sembène, Laurent Granjon, Pascal Handschumacher, Ousmane Faye, Mawlouth Diallo, Amadou A Sall
Wesselsbron disease is a neglected mosquito transmitted Flavivirus infection that causes abortions and has teratogenic effects on sheep and cattle in Africa. Human can also be infected. The detection of human or animal cases is complicated by the non-specific symptoms close to Rift Valley Fever (RVF) in domestic livestock species or Dengue like syndrome in humans. Then, these detections are usually made during RVF investigations in sheep. These domestic animals should take a role in the life cycle of the virus but some evidences of Wesselsbron virus (WSLV) presence in wild animals suggest that the latter may be involved in the virus maintenance in nature...
June 2017: One Health
https://www.readbyqxmd.com/read/28587703/make-it-two-a-case-report-of-dual-sequential-external-defibrillation
#4
Colin R Bell, Adam Szulewski, Steven C Brooks
Dual sequential external defibrillation (DSED) is the process of near simultaneous discharge of two defibrillators with differing pad placement to terminate refractory arrhythmias. Previously used in the electrophysiology suite, this technique has recently been used in the emergency department and prehospital setting for out-of-hospital cardiac arrest (OHCA). We present a case of successful DSED in the emergency department with neurologically intact survival to hospital discharge after refractory ventricular fibrillation (RVF) and review the putative mechanisms of action of this technique...
June 7, 2017: CJEM
https://www.readbyqxmd.com/read/28584173/spatial-seasonal-and-climatic-predictive-models-of-rift-valley-fever-disease-across-africa
#5
David W Redding, Sonia Tiedt, Gianni Lo Iacono, Bernard Bett, Kate E Jones
Understanding the emergence and subsequent spread of human infectious diseases is a critical global challenge, especially for high-impact zoonotic and vector-borne diseases. Global climate and land-use change are likely to alter host and vector distributions, but understanding the impact of these changes on the burden of infectious diseases is difficult. Here, we use a Bayesian spatial model to investigate environmental drivers of one of the most important diseases in Africa, Rift Valley fever (RVF). The model uses a hierarchical approach to determine how environmental drivers vary both spatially and seasonally, and incorporates the effects of key climatic oscillations, to produce a continental risk map of RVF in livestock (as a proxy for human RVF risk)...
July 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28584171/local-disease-ecosystem-livelihood-dynamics-reflections-from-comparative-case-studies-in-africa
#6
Melissa Leach, Bernard Bett, M Said, Salome Bukachi, Rosemary Sang, Neil Anderson, Noreen Machila, Joanna Kuleszo, Kathryn Schaten, Vupenyu Dzingirai, Lindiwe Mangwanya, Yaa Ntiamoa-Baidu, Elaine Lawson, Kofi Amponsah-Mensah, Lina M Moses, Annie Wilkinson, Donald S Grant, James Koninga
This article explores the implications for human health of local interactions between disease, ecosystems and livelihoods. Five interdisciplinary case studies addressed zoonotic diseases in African settings: Rift Valley fever (RVF) in Kenya, human African trypanosomiasis in Zambia and Zimbabwe, Lassa fever in Sierra Leone and henipaviruses in Ghana. Each explored how ecological changes and human-ecosystem interactions affect pathogen dynamics and hence the likelihood of zoonotic spillover and transmission, and how socially differentiated peoples' interactions with ecosystems and animals affect their exposure to disease...
July 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28576692/utero-abdominal-wall-fistula-after-cesarean-section-in-patient-with-prior-colorectal-resection-for-endometriosis-case-report-and-systematic-review
#7
Chloé Chattot, Patrick Aristizabal, Sofiane Bendifallah, Emile Daraï
Utero-Abdominal Wall Fistula (UAWF) is a very rare complication of cesarean section. We report an unusual case of a UAWF occurring in a 37-year-old woman, 4 years after a cesarean section and previously radical surgery for deep infiltrating endometriosis (DIE) with bowel resection. The patient presented with persistent purulent discharge of the Pfannenstiel scar and had noted that the discharge was blood-stained during menstruation. Magnetic resonance imaging confirmed the diagnosis of UAWF. Surgery was performed by laparotomy and was complicated by a postoperative rectovaginal fistula (RVF) which was successfully treated by the placement of a biological mesh via the vagina route...
May 30, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/28543813/inhaled-pulmonary-vasodilator-therapy-for-management-of-right-ventricular-dysfunction-after-left-ventricular-assist-device-placement-and-cardiac-transplantation
#8
Leah A Sabato, David M Salerno, Jeremy D Moretz, Douglas L Jennings
Right ventricular failure (RVF) after cardiac transplant (CTX) or implantation of a continuous-flow left ventricular assist device (CF-LVAD) is associated with significant post-operative morbidity and mortality. A variety of modalities have been used to treat post-operative RVF, including management of volume status, intravenous inotropes and vasodilators, and right-sided mechanical support. Inhaled vasodilator agents are a unique treatment option aimed at minimizing systemic absorption by delivering therapy directly to the pulmonary vasculature...
May 24, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28542242/-we-do-not-bury-dead-livestock-like-human-beings-community-behaviors-and-risk-of-rift-valley-fever-virus-infection-in-baringo-county-kenya
#9
Edna N Mutua, Salome A Bukachi, Bernard K Bett, Benson A Estambale, Isaac K Nyamongo
BACKGROUND: Rift Valley Fever (RVF), is a viral zoonotic disease transmitted by Aedes and Culex mosquitoes. In Kenya, its occurrence is associated with increased rains. In Baringo County, RVF was first reported in 2006-2007 resulting in 85 human cases and 5 human deaths, besides livestock losses and livelihood disruptions. This study sought to investigate the county's current RVF risk status. METHODOLOGY AND PRINCIPAL FINDINGS: A cross-sectional study on the knowledge, attitudes and practices of RVF was conducted through a mixed methods approach utilizing a questionnaire survey (n = 560) and 26 focus group discussions (n = 231)...
May 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28509675/acute-and-long-term-effects-of-left-ventricular-assist-device-support-on-right-ventricular-function-in-children-with-pediatric-pulsatile-ventricular-assist-devices
#10
Roberta Iacobelli, Arianna Di Molfetta, Gianluca Brancaccio, Sergio Filippelli, Stefano Morelli, Benedetta Natali, Alessandra Toscano, Fabrizio Drago, Antonio Amodeo
Right ventricular failure (RVF) is a significant issue when considering left ventricular assist device (LVAD) implantation in pediatrics. The aim of this study was to evaluate the effects of LVAD on right ventricular (RV) function in children. We retrospectively reviewed clinical and echocardiographic data of children who underwent Berlin Heart EXCOR LVAD focusing on RV function before and after implantation (1, 3, and 6 month follow-up). An isolated LVAD was used in 27 patients. Median age was 11 months (interquartile range [IQR]: 5-24 months), with a median weight of 6...
May 12, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28502226/stronger-interference-from-distractors-in-the-right-hemifield-during-visual-search
#11
Christophe Carlei, Dirk Kerzel
The orientation-bias hypothesis states that there is a bias to attend to the right visual hemifield (RVF) when there is spatial competition between stimuli in the left and right hemifield [Pollmann, S. (1996). A pop-out induced extinction-like phenomenon in neurologically intact subjects. Neuropsychologia, 34(5), 413-425. doi: 10.1016/0028-3932(95)00125-5 ]. In support of this hypothesis, stronger interference was reported for RVF distractors with contralateral targets. In contrast, previous studies using rapid serial visual presentation (RSVP) found stronger interference from distractors in the left visual hemifield (LVF)...
May 13, 2017: Laterality
https://www.readbyqxmd.com/read/28457351/rift-valley-fever
#12
REVIEW
Amy Hartman
Rift Valley fever (RVF) is a severe veterinary disease of livestock that also causes moderate to severe illness in people. The life cycle of RVF is complex and involves mosquitoes, livestock, people, and the environment. RVF virus is transmitted from either mosquitoes or farm animals to humans, but is generally not transmitted from person to person. People can develop different diseases after infection, including febrile illness, ocular disease, hemorrhagic fever, or encephalitis. There is a significant risk for emergence of RVF into new locations, which would affect human health and livestock industries...
June 2017: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/28455993/rectovaginal-fistula-after-low-anterior-resection-in-chinese-patients-with-colorectal-cancer
#13
Hongtu Zheng, Tianan Guo, Yuchen Wu, Cong Li, Sanjun Cai, Fangqi Liu, Ye Xu
Rectovaginal fistula is a postoperative complication of low anterior resection. We investigated the incidence of rectovaginal fistula (RVF) after low anterior resection, its risk factors and its optimal treatment. We analyzed data from 1,493 female patients who underwent low anterior resection for colorectal cancer between January 2006 and March 2016. We calculated the incidence of RVF and performed univariate and multivariate logistic regression analyses to identify risk factors. Twenty-four patients experienced RVF, giving an incidence of 1...
April 11, 2017: Oncotarget
https://www.readbyqxmd.com/read/28437185/absence-of-evidence-of-rift-valley-fever-infection-in-eulemur-fulvus-brown-lemur-in-mayotte-during-an-interepidemic-period
#14
Raphaëlle Métras, Laure Dommergues, Katia Ortiz, Marion Pannequin, Christian Schuler, Patrick Roux, John W Edmunds, Matt J Keeling, Catherine Cêtre-Sossah, Eric Cardinale
The potential role of Eulemur fulvus (brown lemur) in the epidemiology of Rift Valley fever (RVF) in Mayotte, during an interepidemic period, was explored. In February and March 2016, 72 animals were blood sampled and tested for RVF. No evidence of RVF genome or antibodies was found in the samples. The role of other wild mammals on the island should, however, be further investigated.
May 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28425834/rift-valley-fever-vaccines-an-overview-of-the-safety-and-efficacy-of-the-live-attenuated-mp-12-vaccine-candidate
#15
Tetsuro Ikegami
Rift Valley fever (RVF) is a mosquito-borne zoonotic viral disease endemic to Africa and the Arabian Peninsula. High rates of abortion among infected ruminants and hemorrhagic fever in infected humans are major public health concerns. Commercially available veterinary RVF vaccines are important for preventing the spread of the Rift Valley fever virus (RVFV) in endemic countries; however, RVFV outbreaks continue to occur frequently in endemic countries in the 21st century. In the U.S., the live-attenuated MP-12 vaccine has been developed for both animal and human vaccination...
May 2, 2017: Expert Review of Vaccines
https://www.readbyqxmd.com/read/28418458/right-ventricular-fiber-structure-as-a-compensatory-mechanism-in-experimental-pressure-overload-a-computational-study
#16
Arnold D Gomez, Huashan Zou, Megan E Bowen, Xiaoqing Liu, Edward W Hsu, Stephen H McKellar
Right ventricular failure (RVF) is a lethal condition in diverse pathologies. Pressure overload is the most common etiology of RVF, but our understanding of the tissue structure remodeling and other biomechanical factors involved in RVF is limited. Some remodeling patterns are interpreted as compensatory mechanisms including myocyte hypertrophy, extracellular fibrosis, and changes in fiber orientation. However, the specific implications of these changes, especially in relation to clinically observable measurements, are difficult to investigate experimentally...
April 17, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28413300/anorectal-agenesis-with-rectovaginal-fistula-a-rare-regional-variant
#17
Subhasis Roy Choudhury, Niyaz Ahmed Khan, Pinaki Ranjan Debnath, Partap Singh Yadav, Shalu Shah, Rajiv Chadha
AIMS AND OBJECTIVES: The anatomical types of female anorectal malformation (ARM) are complex and include several rare and regional variants. The aim of this report is to highlight the diagnosis and management of cases of anorectal agenesis with rectovaginal fistula (RVF). MATERIALS AND METHODS: This is a retrospective chart review of cases of RVF who underwent definitive surgery between November 2000 and September 2016 in a single institution. RESULTS: Of the 244 female patients with anorectal anomalies treated in our institution over a 16-year period, there were 15 cases of RVF with anorectal agenesis giving it an incidence of 6%...
April 2017: Journal of Indian Association of Pediatric Surgeons
https://www.readbyqxmd.com/read/28397519/emerging-vector-borne-diseases-in-dromedaries-in-tunisia-west-nile-bluetongue-epizootic-haemorrhagic-disease-and-rift-valley-fever
#18
Thameur B Hassine, Jihane Amdouni, Federica Monaco, Giovanni Savini, Soufien Sghaier, Imed B Selimen, Walid Chandoul, Khaled B Hamida, Salah Hammami
A total of 118 sera were collected during 2016 from two groups of dromedaries from Kebili and Medenine governorates in the south of Tunisia. The aim of this study was to provide the first serological investigation of four emerging vector-borne diseases in two groups of dromedaries in Tunisia. Sera were tested by ELISA and serum neutralisation test to identify West Nile virus (WNV), bluetongue virus (BTV), epizootic haemorrhagic disease virus (EHDV) and Rift Valley fever virus (RVFV). In the first group, the seroprevalence for BTV was 4...
March 31, 2017: Onderstepoort Journal of Veterinary Research
https://www.readbyqxmd.com/read/28395390/surgical-treatment-of-rectovaginal-fistula-in-crohn-s-disease-a-tertiary-center-experience
#19
Giovanni Milito, Giorgio Lisi, Dario Venditti, Michela Campanelli, Elena Aronadio, Michele Grande
BACKGROUND: Rectovaginal fistula (RVF) is a disastrous complication of Crohn's disease (CD) that is exceedingly difficult to treat. It is a disabling condition that negatively impacts a woman's quality of life. Current treatment algorithms range from observation to medical management to the need for surgical intervention. A wide variety of success rates have been reported for all management options. The choice of surgical repair methods depends on various fistula and patient characteristics, and its published success rates vary with initial success being around 50% rising to 80% with repeated surgery...
April 11, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28387600/serological-evidence-for-the-circulation-of-rift-valley-fever-virus-in-domestic-small-ruminants-in-southern-gabon
#20
Gael Darren Maganga, Andre Lea Abessolo Ndong, Clency Sylde Mikala Okouyi, Sheila Makiala Mandanda, Nadine N'Dilimabaka, Anais Pinto, Ernest Agossou, Brieuc Cossic, Jean-Paul Akue, Eric Maurice Leroy
Rift Valley fever (RVF) is a zoonotic disease, which caused several epidemics in humans in many countries of Africa. Using an inhibition enzyme-linked immunosorbent assay (ELISA), real-time reverse transcription PCR, and nested one-step reverse transcription PCR, we conducted a cross-sectional study in populations of sheep and goats from the Mongo County in 2014 to determine the circulation of the Rift Valley fever virus (RVFV) in small ruminants from this area. From a total of 201 small ruminants (95 sheep and 106 goats), the overall IgG seroprevalence against the RVFV was 6...
June 2017: Vector Borne and Zoonotic Diseases
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