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Persistent vegetative state

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https://www.readbyqxmd.com/read/29046560/ecosystem-functioning-is-enveloped-by-hydrometeorological-variability
#1
Christoforos Pappas, Miguel D Mahecha, David C Frank, Flurin Babst, Demetris Koutsoyiannis
Terrestrial ecosystem processes, and the associated vegetation carbon dynamics, respond differently to hydrometeorological variability across timescales, and so does our scientific understanding of the underlying mechanisms. Long-term variability of the terrestrial carbon cycle is not yet well constrained and the resulting climate-biosphere feedbacks are highly uncertain. Here we present a comprehensive overview of hydrometeorological and ecosystem variability from hourly to decadal timescales integrating multiple in situ and remote-sensing datasets characterizing extra-tropical forest sites...
September 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/29033890/an-enigmatic-case-of-acute-mercury-poisoning-clinical-immunological-findings-and-platelet-function
#2
Ilka Kleffner, Susann Eichler, Tobias Ruck, Lisa Schüngel, Steffen Pfeuffer, Philipp Polzer, Ralf Dittrich, Rainer Dziewas, Catharina C Gross, Kerstin Göbel, Heinz Wiendl, Beate E Kehrel, Sven G Meuth
Severe mercury intoxication is very rare in developed countries, but still occurs as the result of volatile substance abuse, suicide attempts, occupational hazards, or endemic food ingestion as reported in the cases of public health disasters in Iraq and in Minamata Bay, Japan. Here, we describe the dramatic physical and cognitive decline of a 23-year-old patient caused by a severe methyl mercury (MeHg) intoxication of unknown origin. We show serial magnetic resonance imaging (MRI) of the patient's brain, as well as ex vivo analyses of blood and cerebrospinal fluid including multicolor flow cytometric measurements, functional assays of hemostaseologic efficacy, and evaluation of regulatory effector molecules...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29030315/natural-history-of-ixodes-affinis-in-virginia
#3
Robyn M Nadolny, Holly D Gaff
The ixodid tick species Ixodes affinis is expanding its range northward, changing the tick community population dynamics in the Mid-Atlantic United States. We present five years of surveillance on newly established populations of I. affinis throughout southeastern Virginia and discuss the habitat and host associations of I. affinis in this northernmost extent of its range. We found that I. affinis populations tend to persist once they are established, and populations tend to increase as ecological succession progresses, provided a vegetated understory persists...
September 29, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29027589/diagnosis-and-treatment-of-severe-neurosurgical-patients-with-pyogenic-ventriculitis-caused-by-gram-negative-bacteria
#4
Feng Shang, Yueqiao Xu, Ning Wang, Weitao Cheng, Wenjin Chen, Wanru Duan
The aim of the study is to explore the experiences in diagnosis and treatment of severe neurosurgical patients with pyogenic ventriculitis caused by gram-negative bacteria (G(-)). Nineteen patients with pyogenic ventriculitis were reviewed for their treatment. The bacterial testing results of cerebrospinal fluid (CSF), the clinical intervention, and the patients' prognosis were evaluated. The bacterial smears of ventricular drainage from all the cases were G(-) bacteria. Head CT and MRI scans confirmed that they were intraventricular empyema...
October 13, 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28975609/healthcare-associated-meningitis-or-ventriculitis-in-older-adults
#5
Chanunya Srihawan, Onaizah Habib, Lucrecia Salazar, Rodrigo Hasbun
BACKGROUND/OBJECTIVES: Healthcare-associated meningitis or ventriculitis (HCAMV) is a serious and life-threatening complication of invasive neurosurgical procedures or penetrating head trauma. Older adults are at higher risk of adverse outcomes in community-acquired meningitis but studies of HCAMV are lacking. Therefore, we perform the study to define the differences in clinical outcomes between older and younger adults with HCAMV. DESIGN: Retrospective study. SETTING: A large tertiary care hospital in Houston, Texas, from July 2003 to November 2014...
October 4, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28943415/management-of-blood-blister-like-aneurysms-of-the-internal-carotid-artery-lessons-learned-from-direct-clipping-in-22-cases
#6
Zheng Liu, Shangming Zhang, Shousen Wang, Qizuan Chen
OBJECTIVE: To present a case series of blood blister-like aneurysms (BBAs) of the internal carotid artery (ICA) and an assessment of diagnosis and treatment options, attempting to identify surgical or endovascular management of BBAs with a low complication rate and a functional outcome. METHODS: A retrospective analysis including diagnosis and treatment options of BBAs of the ICA was performed of patients treated for BBAs at Fuzhou General Hospital from January 2008 to September 2016...
September 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28870222/general-anesthetics-protects-against-cardiac-arrest-induced-brain-injury-by-inhibiting-calcium-wave-propagation-in-zebrafish
#7
Dao-Jie Xu, Bin Wang, Xuan Zhao, Yi Zheng, Jiu-Lin Du, Ying-Wei Wang
Cardiac arrest is a leading cause of death and disability worldwide. Although many victims are initially resuscitated, they often suffer from serious brain injury, even leading to a "persistent vegetative state". Therefore, it is need to explore therapies which restore and protect brain function after cardiac arrest. In the present study, using Tg (HuC:GCaMP5) zebrafish as a model, we found the zebrafish brain generated a burst of Ca(2+) wave after cardiac arrest by in vivo time-lapse confocal imaging. The Ca(2+) wave was firstly initiated at hindbrain and then sequentially propagated to midbrain and telencephalon, the neuron displayed Ca(2+) overload after Ca(2+) wave propagation...
September 4, 2017: Molecular Brain
https://www.readbyqxmd.com/read/28866407/removal-of-emerging-organic-contaminants-in-a-poplar-vegetation-filter
#8
V Martínez-Hernández, M Leal, R Meffe, A de Miguel, C Alonso-Alonso, I de Bustamante, J Lillo, I Martín, J J Salas
Vegetation filters (VFs), a type of land application system, are a robust technology based on natural treatment mechanisms for the removal of wastewater contaminants. Their capacity to attenuate emerging organic contaminants (EOCs) has not yet been evaluated. The present study reports the results of a 2-year EOC monitoring carried out using a poplar VF receiving wastewater primarily treated by an Imhoff tank. The compounds selected included analgesics, a β-adrenergic blocker, stimulants, an anticonvulsant, an anti-depressant, an anti-inflammatory, an antibiotic and analgesic and stimulant metabolites...
January 15, 2018: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28816914/congenital-hypotonia-in-toddlerhood
#9
Naomi Steiner, Alcy Torres, Arathi Reddy, Marilyn Augustyn
David is a 22-month-old boy who is new to your practice. He recently moved from a rural area in the Midwest. His father is in the United States Air Force, and his mother works as a full-time homemaker. Their household includes 5 older siblings. The family moves every year because of the father's Air Force placement.David was born full-term in Virginia, with no reported pregnancy complications and no alcohol, tobacco, or drug exposure. He was delivered vaginally, with Apgar scores of 7 and 9, respectively and no respiratory issues...
September 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28802104/results-of-the-second-national-forest-soil-inventory-in-germany-interpretation-of-level-and-stock-profiles-for-pcdd-f-and-pcb-in-terms-of-vegetation-and-humus-type
#10
Marchela Pandelova, Bernhard Henkelmann, Bernd M Bussian, Karl-Werner Schramm
Polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and polychlorinated biphenyls (PCBs) were detected in 86 humic topsoil layers and in a subset of 11 randomly selected top mineral forest soils at the depths of 0-5cm and 5-10cm collected from different federal states of Germany. The distribution of these persistent organic pollutants (POPs) in humic topsoils with respect to vegetation cover (coniferous vs. deciduous vs. mixed), total organic carbon (TOC), altitude and latitude data was investigated...
January 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/28795064/outcome-determinants-of-decompressive-craniectomy-in-patients-with-traumatic-brain-injury-a-single-center-experience-from-southern-iran
#11
Hosseinali Khalili, Amin Niakan, Fariborz Ghaffarpasand, Arash Kiani, Reza Behjat
OBJECTIVE: To investigate the determinants of outcome in patients with traumatic brain injury (TBI) undergoing decompressive craniectomy (DC) in a large level I trauma center in southern Iran. METHODS: This retrospective cross-sectional study was conducted during an 18-month period from 2013 to 2014 in Shahid Rajaei hospital, a Level I trauma center in Southern Iran. Patients with TBI who had undergone DC were included and the medical charts were reviewed regarding demographics, clinical, radiological and outcome characteristics...
July 2017: Bulletin of Emergency and Trauma
https://www.readbyqxmd.com/read/28791670/xingnao-kaiqiao-acupuncture-combined-with-angong-niuhuang-wan-for-a-patient-under-persistent-vegetative-state-a-case-report
#12
Hujie Song, Xiao Chen, Yalan Yu, Ling Zhang
Persistent vegetative state (PVS) is a clinical condition wherein the cerebral cortex loses its function although brain stem function remains relatively intact. It has high mortality and disability rates. Although treatment for PVS is extensively studied in developed countries, little breakthrough has been made. In China, many PVS patients who were treated with traditional Chinese medicine (TCM) and acupuncture therapy were reported to have regained consciousness. In our department, we have been investigating TCM diagnosis and treatment methods for PVS for many years and have summarized a set of curative programs...
August 8, 2017: Frontiers of Medicine
https://www.readbyqxmd.com/read/28782035/fairy-circle-landscapes-under-the-sea
#13
Daniel Ruiz-Reynés, Damià Gomila, Tomàs Sintes, Emilio Hernández-García, Núria Marbà, Carlos M Duarte
Short-scale interactions yield large-scale vegetation patterns that, in turn, shape ecosystem function across landscapes. Fairy circles, which are circular patches bare of vegetation within otherwise continuous landscapes, are characteristic features of semiarid grasslands. We report the occurrence of submarine fairy circle seascapes in seagrass meadows and propose a simple model that reproduces the diversity of seascapes observed in these ecosystems as emerging from plant interactions within the meadow. These seascapes include two extreme cases, a continuous meadow and a bare landscape, along with intermediate states that range from the occurrence of persistent but isolated fairy circles, or solitons, to seascapes with multiple fairy circles, banded vegetation, and "leopard skin" patterns consisting of bare seascapes dotted with plant patches...
August 2017: Science Advances
https://www.readbyqxmd.com/read/28739616/awakening-with-amantadine-from-a-persistent-vegetative-state-after-subarachnoid-haemorrhage
#14
Sophie Mirabell Lehnerer, Franziska Scheibe, Ralph Buchert, Stefan Kliesch, Andreas Meisel
We report the case of a 36-year-old woman with a subarachnoid haemorrhage (SAH) caused by a rupture of a right-sided middle cerebral artery aneurysm and subsequent malignant infarction of the right hemisphere leading to a persistent vegetative state and severe spastic tetraparesis with recurrent myocloni. Nine months after disease onset, the patient was transferred to our department for diagnostic and therapeutic re-evaluation. The poor clinical condition could not be explained by the brain lesion caused by the SAH or infarction...
July 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28730654/extensive-wildfires-climate-change-and-an-abrupt-state-change-in-subalpine-ribbon-forests-colorado
#15
W John Calder, Bryan Shuman
Ecosystems may shift abruptly when the effects of climate change and disturbance interact, and landscapes with regularly patterned vegetation may be especially vulnerable to abrupt shifts. Here we use a fossil pollen record from a regularly patterned ribbon forest (alternating bands of forests and meadows) in Colorado to examine whether past changes in wildfire and climate produced abrupt vegetation shifts. Comparing the percentages of conifer pollen with sedimentary δ(18) O data (interpreted as an indicator of temperature or snow accumulation) indicates a first-order linear relationship between vegetation composition and climate change with no detectable lags over the past 2,500 yr (r = 0...
October 2017: Ecology
https://www.readbyqxmd.com/read/28712840/current-validity-of-diagnosis-of-permanent-vegetative-state-a-longitudinal-study-in-a-sample-of-patients-with-altered-states-of-consciousness
#16
E Noé, J Olaya, C Colomer, B Moliner, P Ugart, C Rodriguez, R Llorens, J Ferri
INTRODUCTION: Altered states of consciousness have traditionally been associated with poor prognosis. At present, clinical differences between these entities are beginning to be established. METHOD: Our study included 37 patients diagnosed with vegetative state/unresponsive wakefulness syndrome (UWS) and 43 in a minimally conscious state (MCS) according to the Coma Recovery Scale-Revised (CRS-R). All patients were followed up each month for at least 6 months using the CRS-R...
July 13, 2017: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/28674346/diagnosis-and-treatment-of-traumatic-cerebrovascular-injury-pitfalls-in-the-management-of-neurotrauma
#17
Hitoshi Kobata
Traumatic cerebrovascular injury (TCVI) is an uncommon clinical entity in traumatic brain injury (TBI), yet it may cause devastating brain injury with high morbidity and mortality. Early recognition and prioritized strategic treatment are of paramount importance. A total of 1966 TBI patients admitted between 1999 and 2015 in our tertiary critical care center were reviewed. Screening of TCVI was based on the Guidelines for the Management of Severe Head Injury in Japan. TCVI was confirmed in 33 (1.7%) patients; 29 blunt and 4 penetrating injuries...
August 15, 2017: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/28663409/persistent-vegetative-state-and-minimally-conscious-state-ethical-legal-and-practical-dilemmas
#18
EDITORIAL
Lindy Willmott, Ben White
No abstract text is available yet for this article.
July 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28596151/survey-on-advance-care-planning-of-italian-outpatients-on-chronic-haemodialysis
#19
Nicola Panocchia, Giuseppe Tonnara, Roberta Minacori, Dario Sacchini, Maurizio Bossola, Luigi Tazza, Giovanni Gambaro, Antonio Gioacchino Spagnolo
OBJECTIVES: The clinical practice guidelines published by the Renal Physicians Association (USA) recommend instituting advance care planning (ACP) for patients with end-stage renal disease. Studies on this issue are lacking in Italy. Our aim was to determine the attitudes of patients on ACP in our dialysis centre. METHODS: We performed a cross-sectional survey. We recruited patients on maintenance haemodialysis (HD) at Hemodialysis Center of Università Cattolica del Sacro Cuore, from 1 March 2014 to 31 March 2015...
June 8, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28593628/outcome-of-microsurgical-revascularization-in-patients-with-moyamoya-disease-first-report-from-iranian-population
#20
Abdolkarim Rahmanian, Mohammad Sadehgh Masoudi, Fariborz Ghaffarpasand, Mohammad Hossein Ashraf, Ehsanali Alibai
AIM: The aim of this study was to report the outcome of microsurgical revascularization in patients with moyamoya disease in Southern Iran. MATERIAL AND METHODS: This cross-sectional study was conducted in Southern Iran during a 7-year period from 2009 to 2016. All the patients with moyamoya disease (confirmed with digital substraction angiography) who underwent microsurgical revascularization (extracranial-intracranial bypass or synangiosis) were included. All the patients were followed for at least 1 year and the outcome was measured using Glasgow outcome scale (GOS) and modified Rankin scale (MRS)...
May 7, 2017: Turkish Neurosurgery
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