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Definition of brain death

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https://www.readbyqxmd.com/read/28727900/head-midline-position-for-preventing-the-occurrence-or-extension-of-germinal-matrix-intraventricular-hemorrhage-in-preterm-infants
#1
REVIEW
Olga Romantsik, Maria Grazia Calevo, Matteo Bruschettini
BACKGROUND: Preterm birth is known to constitute the major risk factor for development of germinal matrix-intraventricular hemorrhage (GM-IVH). Head position may affect cerebral hemodynamics and thus may be involved indirectly in development of GM-IVH. Turning the head toward one side may functionally occlude jugular venous drainage on the ipsilateral side while increasing intracranial pressure and cerebral blood volume. Thus, it has been suggested that cerebral venous pressure is reduced and hydrostatic brain drainage improved if the patient is in supine midline position with the bed tilted 30°...
July 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28717727/childhood-cancer-mortality-in-india-direct-estimates-from-a-nationally-representative-survey-of-childhood-deaths
#2
Sumit Gupta, Shaun K Morris, Wilson Suraweera, Lukasz Aleksandrowicz, Rajesh Dikshit, Prabhat Jha
PURPOSE: Although most children with cancer live in low- and middle-income countries, measurements of childhood cancer burden in such countries have been restricted to incidence rates from a few subnational cancer registries and mortality rates from vital statistics. We aimed to provide alternative burden estimates by using nationally representative longitudinal survey-derived mortality rates. METHODS: We examined cancer deaths in childhood (1 month to 14 years of age) in the Million Death Study, a cohort of > 27,000 pediatric deaths in India on the basis of enhanced verbal autopsies...
December 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28716226/cytokines-do-play-a-role-in-pathogenesis-of-tuberculous-meningitis-a-prospective-study-from-a-tertiary-care-center-in-india
#3
S Sharma, M K Goyal, K Sharma, M Modi, M Sharma, N Khandelwal, S Prabhakar, N Sharma, Shree R, J Gairolla, A Jain, V Lal
BACKGROUND: Though animal studies have suggested a role for proinflammatory cytokines in pathogenesis their exact role in pathogenesis of human meningeal tuberculosis continues to be controversial with different studies yielding contradictory results. AIM AND OBJECTIVES: To study the levels of proinflammatory cytokines in serum and cerebrospinal fluid (CSF) of patients with tubercular meningitis (TBM) and to determine whether these correlate with disease severity...
August 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28661565/a-brief-review-of-intradialytic-hypotension-with-a-focus-on-survival
#4
Jason A Chou, Kamyar Kalantar-Zadeh, Anna T Mathew
Intradialytic hypotension (IDH), a common complication of ultrafiltration during hemodialysis therapy, is associated with high mortality and morbidity. IDH, defined as a nadir systolic blood pressure of less than 90 mm Hg on more than 30% of treatments, is a relevant definition and is correlated with mortality. Risk factors for IDH include patient demographics, anti-hypertensive medication use, larger interdialytic weight gain, and dialysis prescription features as dialysate sodium, high ultrafiltration rate, and dialysate temperature...
June 29, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28650356/trending-fibrinolytic-dysregulation-fibrinolysis-shutdown-in-the-days-after-injury-is-associated-with-poor-outcome-in-severely-injured-children
#5
Christine M Leeper, Matthew D Neal, Christine J McKenna, Barbara A Gaines
OBJECTIVE: To trend fibrinolysis after injury and determine the influence of traumatic brain injury (TBI) and massive transfusion on fibrinolysis status. BACKGROUND: Admission fibrinolytic derangement is common in injured children and adults, and is associated with poor outcome. No studies examine fibrinolysis days after injury. METHODS: Prospective study of severely injured children at a level 1 pediatric trauma center. Rapid thromboelastography was obtained on admission and daily for up to 7 days...
July 22, 2017: Annals of Surgery
https://www.readbyqxmd.com/read/28617166/challenges-in-providing-timely-physiotherapy-and-opportunities-to-influence-outcomes-for-potential-lung-donors
#6
Cassandra Raios, Jenny L Keating, Nicola Stitt, Helen I Opdam, Elizabeth H Skinner
CONTEXT: There is a critical shortage of donor lungs however, considerable ethical considerations are associated with the conduct of research to optimize care of the potential organ donor. OBJECTIVE: To investigate pathways of consent, respiratory care by physiotherapists and donation rates to contextualize future research on physiotherapy effects on donor lung suitability for procurement. DESIGN: Retrospective audit. SETTING: Australian tertiary hospital...
June 2017: Progress in Transplantation
https://www.readbyqxmd.com/read/28574388/specifications-of-intracranial-saccular-aneurysms-treated-by-endovascular-approach-using-detachable-coils
#7
D Gunia, G Ingorokva, E Ekvtimishvili, G Basiladze
The treatment of intracranial saccular aneurysms remains an actual problem due to this pathology prevalence among the human population (about 1-10%). For definition of efficiency and preventive importance of endovascular treatment, it is necessary to clear define which aneurysms are more suitable and operable for endovascular occlusion with minimal risk of complications and better final outcome. The aim of this study is to analyze anatomical features (location and structure) of intracranial saccular aneurysms and clinical data of patients who have been operated endovascular, with detachable coils in High Technology Medical Center University Clinic,Tbilisi, Georgia for the last 6 years...
April 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28539119/towards-the-concept-of-disease-modifier-in-post-stroke-or-vascular-cognitive-impairment-a-consensus-report
#8
Régis Bordet, Ralf Ihl, Amos D Korczyn, Giuseppe Lanza, Jelka Jansa, Robert Hoerr, Alla Guekht
BACKGROUND: Vascular cognitive impairment (VCI) is a complex spectrum encompassing post-stroke cognitive impairment (PSCI) and small vessel disease-related cognitive impairment. Despite the growing health, social, and economic burden of VCI, to date, no specific treatment is available, prompting the introduction of the concept of a disease modifier. CONSENSUS AND SUGGESTIONS: Within this clinical spectrum, VCI and PSCI remain advancing conditions as neurodegenerative diseases with progression of both vascular and degenerative lesions accounting for cognitive decline...
May 24, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28489506/prehospital-intubation-is-associated-with-favorable-outcomes-and-lower-mortality-in-protect-iii
#9
Kurt R Denninghoff, Tomas Nuño, Qi Pauls, Sharon D Yeatts, Robert Silbergleit, Yuko Y Palesch, Lisa H Merck, Geoff T Manley, David W Wright
OBJECTIVE: Traumatic brain injury (TBI) causes more than 2.5 million emergency department visits, hospitalizations, or deaths annually. Prehospital endotracheal intubation has been associated with poor outcomes in patients with TBI in several retrospective observational studies. We evaluated the relationship between prehospital intubation, functional outcomes, and mortality using high quality data on clinical practice collected prospectively during a randomized multicenter clinical trial...
May 10, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28482247/a-possible-biomarker-for-methadone-related-deaths
#10
Antonina Argo, Gianfranco Francesco Spatola, Stefania Zerbo, Cettina Sortino, Antonietta Lanzarone, Maria Laura Uzzo, Alessandro Pitruzzella, Fiorenza Farè, Gabriella Roda, Veniero Gambaro, Paolo Procaccianti, Steven B Karch
Methadone (MTH) concentrations in those dying of MTH toxicity totally overlap concentrations where the presence of MTH is only an incidental finding, making it very difficult to make distinctions in actual cases. A biomarker, be it anatomical or biochemical for MTH toxicity is badly needed, particularly if that markers were known to disrupt effective ventilation. Because the brainstem houses the regulatory centers for cardiorespiratory-control enters, it would seem to be the most likely anatomical site to seek abnormalities in cardiorespiratory control...
July 2017: Journal of Forensic and Legal Medicine
https://www.readbyqxmd.com/read/28474996/association-of-preoperative-hypoalbuminemia-with-postoperative-acute-kidney-injury-in-patients-undergoing-brain-tumor-surgery-a-retrospective-study
#11
Kyungmi Kim, Ji-Yeon Bang, Seon-Ok Kim, Saegyeol Kim, Joung Uk Kim, Jun-Gol Song
OBJECTIVE Hypoalbuminemia is known to be independently associated with postoperative acute kidney injury (AKI). However, little is known about the association between the preoperative serum albumin level and postoperative AKI in patients undergoing brain tumor surgery. The authors investigated the incidence of AKI, impact of preoperative serum albumin level on postoperative AKI, and death in patients undergoing brain tumor surgery. METHODS The authors retrospectively reviewed the electronic medical records and laboratory results of 2363 patients who underwent brain tumor surgery between January 2008 and December 2014...
May 5, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28459735/frequency-and-type-of-situational-awareness-errors-contributing-to-death-and-brain-damage-a-closed-claims-analysis
#12
Christian M Schulz, Amanda Burden, Karen L Posner, Shawn L Mincer, Randolph Steadman, Klaus J Wagner, Karen B Domino
BACKGROUND: Situational awareness errors may play an important role in the genesis of patient harm. The authors examined closed anesthesia malpractice claims for death or brain damage to determine the frequency and type of situational awareness errors. METHODS: Surgical and procedural anesthesia death and brain damage claims in the Anesthesia Closed Claims Project database were analyzed. Situational awareness error was defined as failure to perceive relevant clinical information, failure to comprehend the meaning of available information, or failure to project, anticipate, or plan...
August 2017: Anesthesiology
https://www.readbyqxmd.com/read/28389734/-intensive-care-treatment-of-traumatic-brain-injury-in-multiple-trauma-patients-decision-making-for-complex-pathophysiology
#13
H Trimmel, G Herzer, H Schöchl, W G Voelckel
Traumatic brain injury (TBI) and hemorrhagic shock due to uncontrolled bleeding are the major causes of death after severe trauma. Mortality rates are threefold higher in patients suffering from multiple injuries and additionally TBI. Factors known to impair outcome after TBI, namely hypotension, hypoxia, hypercapnia, acidosis, coagulopathy and hypothermia are aggravated by the extent and severity of extracerebral injuries. The mainstays of TBI intensive care may be, at least temporarily, contradictory to the trauma care concept for multiple trauma patients...
April 7, 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28376670/in-re-guardianship-of-hailu-the-nevada-supreme-court-casts-doubt-on-the-standard-for-brain-death-diagnosis
#14
Greg Yanke, Mohamed Y Rady, Joseph L Verheijde
In the recent court case of In Re Guardianship of Hailu, the Nevada Supreme Court cast doubt on the acceptability of the American Academy of Neurology's guidelines as a medical standard for determining brain death. The Uniform Determination of Death Act, which has been adopted in every state, requires that brain death diagnoses be made in accordance with accepted medical standards. The Court expressed concern that the guidelines fail to ensure that there is an irreversible cessation of all functions of a person's entire brain, which is a component of the Act's definition of death...
January 1, 2017: Medicine, Science, and the Law
https://www.readbyqxmd.com/read/28352007/dynamic-renal-scintigraphic-estimation-of-deceased-donor-kidneys-in-a-rat-model
#15
Huseyin Aydin Mitil, Zehra Pınar Koç, Yunus Guzel, Mustafa Kom, A Belin Ozer, I Hanefi Ozercan, Tansel Ansal Balcı
At present a large number of the renal transplantations are being performed from the deceased donors. The success of these transplantations depends on the viability of the deceased donor kidneys. The aim of this study was to investigate the reliability of scintigraphic estimation of function of deceased donor kidneys by comparing the histopathologic and scintigraphic findings. Ten rats were included in the study (2-3 months old, 250-300 g, all male). Control scintigraphy was performed to all the rats by injection of 37 MBq Tc-99m DTPA from the tail vein in a dynamic manner...
March 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28340083/evaluating-the-patterns-of-aging-related-tau-astrogliopathy-unravels-novel-insights-into-brain-aging-and-neurodegenerative-diseases
#16
Gabor G Kovacs, John L Robinson, Sharon X Xie, Edward B Lee, Murray Grossman, David A Wolk, David J Irwin, Dan Weintraub, Christopher F Kim, Theresa Schuck, Ahmed Yousef, Stephanie T Wagner, Eunran Suh, Vivianna M Van Deerlin, Virginia M-Y Lee, John Q Trojanowski
The term "aging-related tau astrogliopathy" (ARTAG) describes pathological accumulation of abnormally phosphorylated tau protein in astrocytes. We evaluated the correlates of ARTAG types (i.e., subpial, subependymal, white and gray matter, and perivascular) in different neuroanatomical regions. Clinical, neuropathological, and genetic (eg, APOE ε4 allele, MAPT H1/H2 haplotype) data from 628 postmortem brains from subjects were investigated; most of the patients had been longitudinally followed at the University of Pennsylvania...
April 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28287909/clinical-evaluation-of-a-microwave-based-device-for-detection-of-traumatic-intracranial-hemorrhage
#17
Johan Ljungqvist, Stefan Candefjord, Mikael Persson, Lars Jönsson, Thomas Skoglund, Mikael Elam
Traumatic brain injury (TBI) is the leading cause of death and disability among young persons. A key to improve outcome for patients with TBI is to reduce the time from injury to definitive care by achieving high triage accuracy. Microwave technology (MWT) allows for a portable device to be used in the pre-hospital setting for detection of intracranial hematomas at the scene of injury, thereby enhancing early triage and allowing for more adequate early care. MWT has previously been evaluated for medical applications including the ability to differentiate between hemorrhagic and ischemic stroke...
July 1, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/28270838/clinical-and-hemodynamic-profiles-of-elderly-patients-with-pulmonary-arterial-hypertension-a-single-center-prospective-study
#18
Ebru Ozpelit, Bahri Akdeniz, Dilek Sezgin, Can Sevinc, Kemal Can Tertemiz, Mehmet Emre Ozpelit, Mustafa Baris, Nezihi Baris
BACKGROUNDS: Pulmonary arterial hypertension (PAH) was previously considered an illness that affects mostly the young, but now it is also increasingly recognized in the elderly. The aim of this study was to compare the features of elderly versus younger patients diagnosed with PAH, and to define the prognostic factors which affect their long-term survival. METHODS: In this prospective, single center study, the clinical, echocardiographic, hemodynamic characteristics, and the outcomes of younger (18-65 years) and elderly (≥ 65 years) patients with definitive diagnosis of precapillary PAH were compared...
January 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/28261297/comparison-of-prognostic-value-of-n-terminal-pro-brain-natriuretic-peptide-in-septic-and-non-septic-intensive-care-patients
#19
Namik Ozcan, Ayse Ozcan, Cetin Kaymak, Hulya Basar, Mustafa Kotanoglu, Bektas Kose
INTRODUCTION: The aim of this study is to compare the prognostic value of N-terminal pro-brain natriuretic peptide (NT-proBNP) levels in septic and non-septic intensive care patients. MATERIAL AND METHODS: Fifty consecutive patients admitted to the intensive care unit (ICU) were enrolled in either the septic or non-septic group according to the criteria in the International Sepsis Definitions Conference in 2001. Demographic and clinical data, procalcitonin and lactate levels at admission, and death within 28 days were registered...
March 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28260484/impact-of-a-full-time-donor-management-protocol-on-donors-liver-biopsy-findings-progress-to-date
#20
Meysam Mojtabaee, Alireza Shamsaeefar, Siavash Gholami, Mojtaba Mohsenzadeh, Farahnaz Sadegh Beigee
OBJECTIVES: This study investigated a fixed coordinator-directed donor management strategy's impact on donated liver quality, as determined by definitive biopsy results. MATERIALS AND METHODS: We collected donated liver biopsy results from donations both before and after implementing a fixed coordinator-directed donor management strategy. This strategy involved full-time attendance by a donor coordinator and continued resuscitation of brain-dead donors. All donations took place in a single organ procurement unit...
February 2017: Experimental and Clinical Transplantation
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