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https://www.readbyqxmd.com/read/28933214/magnetic-enhancement-of-stem-cell-targeted-delivery-into-the-brain-following-mr-guided-focused-ultrasound-for-opening-the-blood-brain-barrier
#1
Wei-Bin Shen, Pavlos Anastasiadis, Ben Nguyen, Deborah Yarnell, Paul J Yarowsky, Victor Frenkel, Paul S Fishman
Focused ultrasound (FUS)-mediated blood-brain barrier disruption (BBBD) can enable even large therapeutics such as stem cells to enter the brain from the bloodstream. However, the efficiency is relatively low. Our previous study showed that human neural progenitor cells (hNPCs) loaded with superparamagnetic iron oxide nanoparticles (SPIONs) in culture were attracted by an external magnetic field. In vivo, enhanced brain retention was observed near a magnet mounted on the skull in a rat model of traumatic brain injury, where BBBD also occurs...
July 2017: Cell Transplantation
https://www.readbyqxmd.com/read/28930961/impact-of-a-novel-phosphoinositol-3-kinase-inhibitor-in-preventing-mitochondrial-dna-damage-and-damage-associated-molecular-pattern-accumulation-results-from-the-biochronicity-project
#2
George Edward Black, Kyle K Sokol, Donald M Moe, Jon D Simmons, David Muscat, Victor Pastukh, Gina Capley, Olena Gorodnya, Mykhaylo Ruchko, Mark B Roth, Mark Gillespie, Matthew J Martin
BACKGROUND: Despite improvements in the management of severely injured patients, development of multiple organ dysfunction syndrome (MODS) remains a morbid complication of traumatic shock. One of the key attributes of MODS is a profound bioenergetics crisis, for which the mediators and mechanisms are poorly understood. We hypothesized that metabolic uncoupling using an experimental phosphoinositol-3 kinase (PI3-K) inhibitor, LY294002 (LY), may prevent mitochondrial abnormalities that lead to the generation of mitochondrial DNA (mtDNA) damage and the release of mtDNA damage-associated molecular patterns (DAMPs)...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28930959/outcomes-after-concomitant-traumatic-brain-injury-and-hemorrhagic-shock-a-secondary-analysis-from-the-pragmatic-randomized-optimal-platelets-and-plasma-ratios-trial
#3
Samuel M Galvagno, Erin E Fox, Savitri N Appana, Sarah Baraniuk, Patrick L Bosarge, Eileen M Bulger, Rachel A Callcut, Bryan A Cotton, Michael Goodman, Kenji Inaba, Terence O'Keeffe, Martin A Schreiber, Charles E Wade, Thomas M Scalea, John B Holcomb, Deborah M Stein
BACKGROUND: Often the clinician is faced with a diagnostic and therapeutic dilemma in patients with concomitant traumatic brain injury (TBI) and hemorrhagic shock (HS), as rapid deterioration from either can be fatal. Knowledge about outcomes after concomitant TBI and HS may help prioritize the emergent management of these patients. We hypothesized that patients with concomitant TBI and HS (TBI + HS) had worse outcomes and required more intensive care compared with patients with only one of these injuries...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28930955/comparison-of-compensatory-reserve-and-arterial-lactate-as-markers-of-shock-and-resuscitation
#4
Michael Craig Johnson, Abdul Alarhayem, Victor Convertino, Robert Carter, Kevin Chung, Ronald Stewart, John Myers, Daniel Dent, Lilian Liao, Ramon Cestero, Susannah Nicholson, Mark Muir, Martin Schwaca, David Wampler, Mark DeRosa, Brian J Eastridge
BACKGROUND: During traumatic hemorrhage, the ability to identify shock and intervene before decompensation is paramount to survival. Lactate is extremely sensitive to shock, and its clearance has been demonstrated a useful gauge of shock and resuscitation status. Though lactate can be measured in the field, logistical constraints render it impractical in certain environments. The compensatory reserve represents a new clinical measurement reflecting the remaining capacity to compensate for hypoperfusion...
October 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28928590/arteriovenous-malformation-of-face-a-challenge-to-anesthesiologists
#5
S Neeta, Rammoorthi Rao, Madhusudan Upadya, P Keerthi
Arteriovenous (AV) malformations of the face are rare presentations. Endovascular coiling is one of the treatment modalities. We report a case of a 65-year-old lady who presented with a large AV malformation of the face located around the nasal bride and alae nasae posted for coiling under general anesthesia. Anesthetic management of the case was a challenge as it was an anticipated difficult airway situation. Furthermore, any pressure on the swelling can lead to rupture and hemorrhage as the skin above swelling was unhealthy...
July 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28927394/laboratory-markers-of-cardiac-and-metabolic-complications-after-generalized-tonic-clonic-seizures
#6
Robert D Nass, Sina Meiling, René P Andrié, Christian E Elger, Rainer Surges
BACKGROUND: Generalized tonic-clonic seizures (GTCS) frequently lead to emergency inpatient referrals. Laboratory blood values are routinely performed on admission to detect underlying causes and metabolic or cardiac complications. Our goal was to assess the nature and frequency of complications occurring in association with GTCS. METHODS: We retrospectively extracted data from emergency protocols and discharge letters of adult patients admitted to the Department of Epileptology between 01/2010 and 06/2015...
September 19, 2017: BMC Neurology
https://www.readbyqxmd.com/read/28925885/spreading-depolarization-waves-in-neurological-diseases-a-short-review-about-its-pathophysiology-and-clinical-relevance
#7
Yağmur Çetin Taş, İhsan Solaroğlu, Yasemin Gürsoy-Özdemir
Lesion growth following acutely injured brain tissue after stroke, subarachnoid hemorrhage and traumatic brain injury is an important issue and a new target area for promising therapeutic interventions. Spreading depolarization or peri-lesion depolarization waves were demonstrated as one of the significant contributors of continued lesion growth. In this short review, we discuss the pathophysiology for SD forming events and try to list findings detected in neurological disorders like migraine, stroke, subarachnoid hemorrhage and traumatic brain injury in both human as well as experimental studies...
September 15, 2017: Current Neuropharmacology
https://www.readbyqxmd.com/read/28920634/outcomes-analysis-of-stent-graft-repair-for-thoracic-aorta-emergencies
#8
Mourad Boufi, Florent Vernet, Bianca Dona, Olivier Hartung, Anderson D Loundou, Martine Haccoun, Marc Leone, Yves S Alimi
BACKGROUND: This study aimed to identify patient, pathology and procedure-related factors affecting perioperative and mid-term mortality of thoracic aorta emergencies. METHODS: Between 2007 and 2014, patients treated emergently with thoracic stent-graft were retrospectively reviewed. Variables analyzed were: age, renal insufficiency, shock, cardiac arrest, transfer status, pathology, debranching procedures, operation duration, vascular access and European System for Cardiac Operative Risk Evaluation (EuroSCORE)...
December 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28920549/rupture-of-a-non-traumatic-anterior-communicating-artery-aneurysm-does-location-of-aneurysm-associate-with-functional-independence-following-post-acute-in-patient-neurorehabilitation
#9
Henriette Holm Stabel, Asger Roer Pedersen, Søren Paaske Johnsen, Jørgen Feldbæk Nielsen
OBJECTIVE: Patients with non-traumatic rupture of an aneurysm located at the anterior communicating artery (ACoA) often experience cognitive disabilities. It is unknown whether location of aneurysm also affects the possibility for improvement in functional independence compared to patients with an aneurysmal subarachnoid hemorrhage (a-SAH) located elsewhere. The aim was to explore the association between location of aneurysm (ACoA versus other) and level of functional independence, measured by Functional Independence Measure (FIM), at discharge from rehabilitation...
September 18, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28918481/fibrinolysis-in-trauma-a-review
#10
REVIEW
M J Madurska, K A Sachse, J O Jansen, T E Rasmussen, J J Morrison
Fibrinolytic dysregulation is an important mechanism in traumatic coagulopathy. It is an incompletely understood process that consists of a spectrum ranging from excessive breakdown (hyperfibrinolysis) and the shutdown of fibrinolysis. Both hyperfibrinolysis and shutdown are associated with excess mortality and post-traumatic organ failure. The pathophysiology appears to relate to endothelial injury and hypoperfusion, with several molecular markers identified in playing a role. Although there are no universally accepted diagnostic tests, viscoelastic studies appear to offer the greatest potential for timely identification of patients presenting with fibrinolytic dysregulation...
September 16, 2017: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/28916167/structural-neuroimaging-in-sport-related-concussion
#11
Erin D Bigler
Structural neuroimaging of athletes who have sustained a sports-related concussion (SRC) can be viewed as either standard clinical imaging or with advanced neuroimaging methods that quantitatively assess brain structure. Negative findings from conventional computed tomography (CT) or magnetic resonance imaging (MRI) are the norm in SRC. Nonetheless, these conventional measures remain the first line of neuroimaging of the athlete as they do detect clinically significant pathologies, when present, such as hemorrhagic abnormalities in the form of hematomas, contusions and mircobleeds along with regions of focal encephalomalacia or other signal abnormalities, with CT best capable of detecting skull fractures...
September 12, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28905273/early-to-long-term-alterations-of-cns-barriers-after-traumatic-brain-injury-considerations-for-drug-development
#12
Beatriz Rodriguez-Grande, Aleksandra Ichkova, Sighild Lemarchant, Jerome Badaut
Traumatic brain injury (TBI) is one of the leading causes of death and disability, particularly amongst the young and the elderly. The functions of the blood-brain barrier (BBB) and blood-cerebrospinal fluid barrier (BCSFB) are strongly impaired after TBI, thus affecting brain homeostasis. Following the primary mechanical injury that characterizes TBI, a secondary injury develops over time, including events such as edema formation, oxidative stress, neuroinflammation, and alterations in paracelullar and transcellular transport...
September 13, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28899039/the-utility-of-thromboelastography-for-predicting-the-risk-of-progression-of-intracranial-hemorrhage-in-traumatic-brain-injury-patients
#13
Abigail Rao, Amber Lin, Cole Hilliard, Rongwei Fu, Tori Lennox, Ronald Barbosa, Martin Schreiber, Susan Rowell
No abstract text is available yet for this article.
September 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28885969/the-use-of-the-abdominal-aortic-and-junctional-tourniquet-during-cardiopulmonary-resuscitation-following-traumatic-cardiac-arrest-in-swine
#14
Jason Rall, Jennifer M Cox, Joseph Maddry
BACKGROUND: Standard cardiopulmonary resuscitation (CPR) is ineffective in treating traumatic cardiac arrest (TCA) following hemorrhagic shock despite fluid resuscitation. CPR adjuncts, including abdominal compressions and external counter pressure, have shown some success in laboratory settings. The Abdominal Aortic and Junctional Tourniquet (AAJT) is a device that occludes both venous and arterial blood at the level of the aortic bifurcation and likely increases thoracic pressure when applied to the abdomen...
September 2017: Military Medicine
https://www.readbyqxmd.com/read/28885470/poor-microcirculatory-flow-dynamics-are-associated-with-endothelial-cell-damage-and-glycocalyx-shedding-following-traumatic-hemorrhagic-shock
#15
David N Naumann, Jon Hazeldine, Mark J Midwinter, Sam D Hutchings, Paul Harrison
BACKGROUND: Endothelial cell damage and glycocalyx shedding following trauma can increase the risk of inflammation, coagulopathy, vascular permeability and death. Bedside sublingual video-microscopy may detect worse flow and perfusion associated with this endotheliopathy. We compared markers of endotheliopathy with physical flow dynamics following traumatic hemorrhagic shock (THS). METHODS: Sublingual incident dark field video-microscopy was performed at three time-points following injury (<10h; 10-30h; and 30-50h)...
September 5, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28884559/artificial-neural-network-predicts-hemorrhagic-contusions-following-decompressive-craniotomy-in-traumatic-brain-injury
#16
Jian-Li Wang, Guo-Liang Jin, Zi-Gang Yuan
OBJECTIVE: This study aimed to explore relevant factors of hemorrhagic contusions following decompressive craniotomy (DC) in traumatic brain injury (TBI), and create an artificial neural network (ANN) prediction model of the risk factors of hemorrhagic contusions. METHODS: This study analyzed 425 patients with TBI who underwent DC in the Neurosurgery Department of Shaoxing People's Hospital between 2009 and 2014. Patients were divided into two groups according to the first postoperative CT scans: hemorrhage group and non-hemorrhage group...
September 7, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28881122/traumatic-brain-injury-in-children-under-age-24-months-analysis-of-demographic-data-risk-factors-and-outcomes-of-post-traumatic-seizure
#17
Sang-Youl Yoon, Yeon-Ju Choi, Seong-Hyun Park, Jeong-Hyun Hwang, Sung Kyoo Hwang
OBJECTIVE: Traumatic brain injury (TBI) in children under age 24 months has characteristic features because the brain at this age is rapidly growing and sutures are opened. Moreover, children this age are completely dependent on their parents. We analyzed the demographic data and risk factors for outcomes in TBI patients in this age group to elucidate their clinical characteristics. METHODS: We retrospectively reviewed the medical records and radiological films of children under 24 months who were admitted to Kyungpook National University Hospital from January 2004 to December 2013 for TBI...
September 2017: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/28875111/carotid-cavernous-fistula-masquerading-as-delayed-suprachoroidal-hemorrhage-after-trabeculectomy
#18
Mukesh Jain, Md Shahid Alam, Bipasha Mukherjee, Rajiv Raman
Objective: Carotid cavernous fistulae (CCFs) are abnormal communications between the cavernous sinus and the carotid arterial system. Based on the etiology, CCFs can be traumatic, spontaneous and rarely iatrogenic. We report an interesting case of new onset CCF associated with shallow choroidal detachment after trabeculectomy surgery. Method: Observational case report Result: A 69-year-old male patient presented with complain of proptosis, congestion, and gross diminution of vision in the left eye following trabeculectomy elsewhere...
2017: GMS Ophthalmology Cases
https://www.readbyqxmd.com/read/28871614/a-decision-instrument-to-identify-isolated-traumatic-subdural-hematomas-at-low-risk-of-neurological-deterioration-surgical-intervention-or-radiographic-worsening
#19
Peter Pruitt, Jonathan Van Ornam, Pierre Borczuk
BACKGROUND AND OBJECTIVES: Subdural hematoma (SDH) is the most common form of traumatic intracranial hemorrhage. Severity of disease in patients with SDH varies widely. It was hypothesized that a decision rule could identify patients with SDH who are at very low-risk for neurological decline, neurosurgical intervention or radiographic worsening. METHODS: Retrospective chart review of consecutive patients age ≥ 16 with Glasgow Coma Score (GCS) ≥ 13 and CT-documented isolated SDH presenting to a university affiliated, urban, 100,000-annual-visit ED from 2009-2015...
September 4, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28858739/spontaneous-non-traumatic-mediastinal-hematoma-associated-with-oral-anticoagulant-therapy-a-case-report-and-literature-review
#20
Masashi Mikubo, Dai Sonoda, Hirotsugu Yamazaki, Masahito Naito, Yoshio Matsui, Kazu Shiomi, Yukitoshi Satoh
INTRODUCTION: Mediastinal hematoma is usually caused by thoracic trauma or a ruptured aortic aneurysm. Spontaneous non-traumatic mediastinal hematomas are rare but potentially life-threatening conditions that can occur in patients taking anticoagulants. PRESENTATION OF CASE: We report a case of 72-year-old man with a massive mediastinal hematoma associated with anticoagulant therapy. He had complained of acute chest discomfort and subsequent tarry diarrhea. Because he had been taking warfarin for paroxysmal atrial fibrillation, an upper gastrointestinal hemorrhage was initially suspected, but no bleeding was detected by upper endoscopy...
August 23, 2017: International Journal of Surgery Case Reports
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