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Lung contusion

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https://www.readbyqxmd.com/read/28637572/investigating-cyclooxygenase-inhibition-in-a-rat-pulmonary-contusion-model-a-laboratory-study-finding-no-improvement-with-ibuprofen
#1
John P Sharpe, Nick R Khan, Arindam R Chatterjee, Jinsong Huang, Louis J Magnotti, Martin A Croce, Timothy C Fabian
Minimal advances have been made in the management of pulmonary contusions (PCs). The purpose of this study was to evaluate the impact of cyclooxygenase inhibition on outcomes following PC in a rat model. PC was induced in anesthetized adult rats. Ibuprofen was given to the treatment group (TG) and water was given to the control group (CG). Lung injury was assessed with pulse oximetry, arterial blood gases, CT, and histopathologic examination. Inflammation was measured with both serum and bronchoalveolar lavage (BAL) levels of tumor necrosis factor α and interleukin-6...
June 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28632138/monitoring-lung-contusion-in-a-porcine-polytrauma-model-using-eit-an-application-study
#2
Susana Aguiar Santos, Carlos Castelar Wembers, Klemens Horst, Roman Pfeifer, Tim-Philipp Simon, Hans-Christoph Pape, Frank Hildebrand, Michael Czaplik, Steffen Leonhardt, Daniel Teichmann
Lung contusion is the most common lung injury following blunt chest trauma which, in turn, is associated with high mortality rates (Gavelli et al., 2002). Lung contusion is characterized by hemorrhage and edema with consecutively reduced compliance. In this study, unilateral lung contusion and other traumata were induced in 12 pigs by using a bolt gun machine. To investigate the pathophysiological consequences of lung contusion, information on clinical parameters was collected and monitored regularly while animals were additionally monitored with electrical impedance tomography (EIT) before trauma, and at 4, 24, 48 and 72 h after polytrauma...
June 20, 2017: Physiological Measurement
https://www.readbyqxmd.com/read/28624051/persistent-injury-associated-anemia-the-role-of-the-bone-marrow-microenvironment
#3
Jessica K Millar, Kolenkode B Kannan, Tyler J Loftus, Ines G Alamo, Jessica Plazas, Philip A Efron, Alicia M Mohr
BACKGROUND: The regulation of erythropoiesis involves hematopoietic progenitor cells, bone marrow stroma, and the microenvironment. Following severe injury, a hypercatecholamine state develops that is associated with increased mobilization of hematopoietic progenitor cells to peripheral blood and decreased growth of bone marrow erythroid progenitor cells that manifests clinically as a persistent injury-associated anemia. Changes within the bone marrow microenvironment influence the development of erythroid progenitor cells...
June 15, 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28597665/-injuries-associated-with-cardiopulmonary-resuscitation-in-non-survivors-after-out-of-hospital-cardiac-arrest-autopsy-study
#4
Lucia Ihnát Rudinská, Petr Hejna, Margita Smatanová, Peter Ihnát, Igor Dvořáček
The aim of the present study is to investigate incidence and seriousness of CPR-associated injuries on a cohort of CPR non-survivors after out-of-hospital cardiac arrest in the Moravian-Silesian region. In total, 80 persons were included in the study within the study period (2012 - 2015). CPR-associated injuries were identified in 75 (93.7 %) persons, multiple injuries were found in 73 persons. Spectrum of identified injuries covered skin injuries of the upper half of the body, head and neck injuries, rare abdominal injuries and very frequent thorax injuries...
2017: Soudní Lékarství
https://www.readbyqxmd.com/read/28591509/-double-pneumotorax-secondary-to-single-proyectile-weapon-one-case-report-and-review-of-literature
#5
Mario Quintero-Amaya, Francisco Flores-Orozco, José Herrera-Maldonado, Jorge Miño-Bernal, Edna López-Morales, Abigail Juárez-Ugalde, Marisol Flores-Gonzaga, Débora Aguilar-Sánchez
BACKGROUND: The 25% of traumatic deaths are due to chest trauma with a mortality of 28%, and closed trauma is the most common mechanism of injury. The use of firearms increases the relative risk of death. The five more frequent specific chest injuries are lung contusion (31.8%), hemothorax/pneumothorax (19.4%), rib fractures (13.2%), and diaphragmatic injury (7.5%). CLINICAL CASE: Patient of 25 years with a single firearm projectile wound in the chest who assisted to the emergency room (ER) with significant respiratory distress and meriting surgical emergency airway, documenting double pneumothorax, aortic laceration and rupture of the trachea, which required management in the ER with bilateral chest tube placement and subsequent surgical repair...
July 2017: Revista Médica del Instituto Mexicano del Seguro Social
https://www.readbyqxmd.com/read/28457321/effects-of-trauma-hemorrhagic-shock-and-chronic-stress-on-lung-vascular-endothelial-growth-factor
#6
Tyler J Loftus, Andrew J Thomson, Kolenkode B Kannan, Ines G Alamo, Harry N Ramos, Elizabeth E Whitley, Philip A Efron, Alicia M Mohr
BACKGROUND: Vascular endothelial growth factor (VEGF) and its receptors (VEGFR-1 and VEGFR-2) regulate vascular permeability and endothelial cell survival. We hypothesized that hemorrhagic shock (HS) and chronic stress (CS) would increase expression of lung VEGF and its receptors, potentiating pulmonary edema in lung tissue. MATERIALS AND METHODS: Male Sprague-Dawley rats aged 8-9 wk were randomized: naïve control, lung contusion (LC), LC followed by HS (LCHS), and LCHS with CS in a restraint cylinder for 2 h/d (LCHS/CS)...
April 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28452894/severe-trauma-and-chronic-stress-activates-extramedullary-erythropoiesis
#7
Ines G Alamo, Kolenkode B Kannan, Tyler J Loftus, Harry Ramos, Philip A Efron, Alicia M Mohr
BACKGROUND: Severe traumatic injury is associated with bone marrow dysfunction that manifests as impaired erythropoiesis and prolonged hematopoietic progenitor cell (HPC) mobilization from the bone marrow. Extramedullary erythropoiesis, the development of red blood cells outside the bone marrow, has not been studied after severe injury and critical illness. This study examined the influence of lung contusion/hemorrhagic shock (LCHS) followed by chronic stress (CS) on the rodent spleen and to investigate the involvement of the splenic erythropoietin (EPO)/EPO receptor and BMP4 signaling...
July 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28450930/epidemiological-analysis-of-9-596-patients-with-acute-lung-injury-at-chinese-military-hospitals
#8
Daijun Zhou, Jun Qiu, Yi Liang, Wei Dai, Danfeng Yuan, Jihong Zhou
Acute lung injury (ALI) is a common and severe disease that has been associated with significant morbidity and mortality. Understanding the epidemiology of ALI is vital for its prevention and treatment. The present study aimed to analyze the epidemiology of ALI by collecting data from patients that were submitted between 2000 and 2008 into the 'No. 1 Military Medical Project' information system. A total of 9,596 ALI patients were analyzed retrospectively, including 7,284 males (75.91%) and 2,312 females (24...
March 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28277467/high-energy-pediatric-scapula-fractures-and-their-associated-injuries
#9
Steven F Shannon, Nicholas M Hernandez, Stephen A Sems, Annalise N Larson, Todd A Milbrandt
OBJECTIVES: The purpose of this study was to evaluate pediatric scapula fractures occurring in high-energy motorized vehicle accidents and their associated injury patterns in a pediatric patient population. METHODS: One thousand nine hundred sixty-eight pediatric patients who presented after either on-road or off-road motorized vehicle accidents between 1996 and 2015 were retrospectively reviewed. Thirty-eight patients were found to have scapula fractures and the remaining 1930 were identified as controls...
March 8, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28248124/-multiple-firearm-injury-caused-with-a%C3%A2-blank-pistol
#10
Eva Nevická, Rastislav Rozboril, Boris Ťažký, Ivan Závodný, Martin Zdarílek, Jozef Šidlo
The authors present a case of a complex suicide of a 60-year-old woman found dead on her bed. A blank pistol Umarex caliber 9-mm, several blank cartridges and a lot of drug packages were discovered near the body. The woman suffered from a psychiatric depression. There were three gunshot wounds on the body: in the right temporal region, on the palatum of the mouth and on the left chest wall. The gunshot wounds in the right temporal region and in the mouth had central circle defects with the margins of stellate or star-like appearance and blackening...
2017: Soudní Lékarství
https://www.readbyqxmd.com/read/28241883/the-number-of-displaced-rib-fractures-is-more-predictive-for-complications-in-chest-trauma-patients
#11
Chih-Ying Chien, Yu-Hsien Chen, Shih-Tsung Han, Gerald N Blaney, Ting-Shuo Huang, Kuan-Fu Chen
BACKGROUND: Traumatic rib fractures can cause chest complications that need further treatment and hospitalization. We hypothesized that an increase in the number of displaced rib fractures will be accompanied by an increase in chest complications. METHODS: We retrospectively reviewed the trauma registry between January 2013 and May 2015 in a teaching hospital in northeastern Taiwan. Patients admitted with chest trauma and rib fractures without concomitant severe brain, splenic, pelvic or liver injuries were included...
February 28, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28215550/evaluation-of-unenhanced-post-mortem-computed-tomography-to-detect-chest-injuries-in-violent-death
#12
I Sifaoui, C Nedelcu, G Beltran, V Dupont, J Lebigot, A Gaudin, C Ridereau Zins, C Rouge Maillard, C Aubé
PURPOSE: The aim of this study was to assess the performances of unenhanced post-mortem computed tomography (CT) to detect thoracic injuries in violent death. MATERIALS AND METHODS: Retrospectively, we conducted a review of unenhanced CT scans of 67 victims of violent deaths with thoracic injuries and compared CT findings with the results of clinical autopsy. Our gold standard was a comparison of CT scans with autopsy discussed in a monthly forensic radiology multidisciplinary team meeting (MDTM)...
May 2017: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/28099381/daily-propranolol-administration-reduces-persistent-injury-associated-anemia-after-severe-trauma-and-chronic-stress
#13
Ines G Alamo, Kolenkode B Kannan, Letitia E Bible, Tyler J Loftus, Harry Ramos, Philip A Efron, Alicia M Mohr
BACKGROUND: After severe trauma, patients develop a norepinephrine-mediated persistent, injury-associated anemia. This anemia is associated with suppression of bone marrow (BM) erythroid colony growth, along with decreased iron levels, and elevated erythropoietin (EPO) levels, which are insufficient to promote effective erythropoiesis. The impact of norepinephrine on iron regulators, such as ferroportin, transferrin, and transferrin receptor-1 (TFR-1), is unknown. Using a clinically relevant rodent model of lung contusion (LC), hemorrhagic shock (HS), and chronic stress (CS), we hypothesize that daily propranolol (BB), a nonselective β blocker, restores BM function and improves iron homeostasis...
April 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28029486/parenchymal-lung-injuries-related-to-standard-cardiopulmonary-resuscitation
#14
Kyoung-Chul Cha, Yong Won Kim, Hyung Il Kim, Oh Hyun Kim, Yong Sung Cha, Hyun Kim, Kang Hyun Lee, Sung Oh Hwang
OBJECTIVES: We analyzed chest computed tomographic scan to evaluate parenchymal lung injury and its clinical significance in patients who received standard cardiopulmonary resuscitation and were resuscitated from cardiac arrest. METHODS: We enrolled nontraumatic out-of-hospital cardiac arrest patients older than 19 years who had been admitted to the emergency department in cardiac arrest and successfully resuscitated after cardiopulmonary resuscitation. Chest computed tomography was obtained immediately after return of spontaneous circulation (ROSC)...
January 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28028415/scapular-fractures-in-blunt-chest-trauma-self-experience-study
#15
Tabet A Al-Sadek, Desislav Niklev, Ahmed Al-Sadek, Lina Al-Sadek
AIM: The aim of this retrospective study was to report the scapular fractures in patients with blunt chest trauma and to present the type and the frequency of associated thoracic injuries. MATERIAL AND METHODS: Nine patients with fractures of the scapula were included in the study. The mechanisms of the injury, the type of scapular fractures and associated thoracic injuries were analysed. RESULTS: Scapular fractures were caused by high-energy blunt chest trauma...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28007867/chest-wall-stabilization-in-ventilator-dependent-traumatic-flail-chest-patients-who-benefits
#16
Gregor J Kocher, Siamak Sharafi, Luis Filipe Azenha, Ralph A Schmid
OBJECTIVES: Traumatic flail chest is a potentially life threatening injury, often associated with prolonged invasive mechanical ventilation and intensive care unit stay. This study evaluates the usefulness and cost-effectiveness of surgical rib stabilization in patients with flail chest resulting in ventilator dependent respiratory insufficiency. METHODS: A retrospective study on a consecutive series of patients with flail chest with the need for mechanical ventilation was performed...
April 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/27998635/predictors-of-intrathoracic-injury-after-blunt-torso-trauma-in-children-presenting-to-an-emergency-department-as-trauma-activations
#17
Caitlin McNamara, Irina Mironova, Erik Lehman, Robert P Olympia
BACKGROUND: Thoracic injuries are a major cause of death associated with blunt trauma in children. Screening for injury with chest x-ray study, compared with chest computed tomography (CT) scan, has been controversial, weighing the benefits of specificity with the detriment of radiation exposure. OBJECTIVE: To identify predictors of thoracic injury in children presenting as trauma activations to a Level I trauma center after blunt torso trauma, and to compare these predictors with those previously reported in the literature...
June 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27960185/phlda1-promotes-lung-contusion-by-regulating-the-toll-like-receptor-2-signaling-pathway
#18
Shaohua Wang, Hua Zhang, An Wang, Dayu Huang, Jie Fan, Lu Lu, Xiaofeng Chen
BACKGROUND/AIMS: Lung contusion is a potentially lethal injury. Pleckstrin homology-like domain family A, member-1 (PHLDA1) is known to play crucial roles in cell proliferation and apoptosis. In this study, we investigated the biological role of PHLDA1 in lung contusion. METHODS: The expression levels of PHLDA1 and TLR2 were detected by real time PCR and western. The cytokines were determined by ELISA. The inflammatory factors were detected by flow cytometry. The lung injury was determined by HE staining...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27827332/a-preventative-respiratory-protocol-to-identify-trauma-subjects-at-risk-for-respiratory-compromise-on-a-general-in-patient-ward
#19
Bethany A Nyland, Sarah K Spilman, Meghan E Halub, Keith D Lamb, Julie A Jackson, Trevor W Oetting, Sheryl M Sahr
BACKGROUND: Patients are at risk for respiratory complications after sustaining blunt chest trauma, yet contradictory evidence exists about the utility of prophylactic respiratory therapy to reduce respiratory complications in this population. This study assessed the effectiveness of a proactive respiratory protocol on an in-patient ward to identify trauma patients at risk for pulmonary complications, administer appropriate therapies, and prevent deterioration requiring transfer to the ICU...
December 2016: Respiratory Care
https://www.readbyqxmd.com/read/27811509/molecular-characterization-of-hypoxic-alveolar-epithelial-cells-after-lung-contusion-indicates-an-important-role-for-hif-1%C3%AE
#20
Matthew A Sherman, Madathilparambil V Suresh, Vladislav A Dolgachev, Lane K McCandless, Xiang Xue, Li Ziru, David Machado-Aranda, Yatrik M Shah, Krishnan Raghavendran
OBJECTIVE: To understand the fate and regulation of hypoxic type II alveolar epithelial cells (AECs) after lung contusion (LC). BACKGROUND: LC due to thoracic trauma is a major risk factor for the development of acute respiratory distress syndrome. AECs have recently been implicated as a primary driver of inflammation in LC. The main pathological consequence of LC is hypoxia, and a key mediator of adaptation to hypoxia is hypoxia-inducible factor (HIF)-1. We have recently published that HIF-1α is a major driver of acute inflammation after LC through type II AEC...
November 1, 2016: Annals of Surgery
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