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Blunt cardiac injury

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https://www.readbyqxmd.com/read/27929112/chromatin-remodelling-factor-brg1-regulates-myocardial-proliferation-and-regeneration-in-zebrafish
#1
Chenglu Xiao, Lu Gao, Yu Hou, Congfei Xu, Nannan Chang, Fang Wang, Keping Hu, Aibin He, Ying Luo, Jun Wang, Jinrong Peng, Fuchou Tang, Xiaojun Zhu, Jing-Wei Xiong
The zebrafish possesses a remarkable capacity of adult heart regeneration, but the underlying mechanisms are not well understood. Here we report that chromatin remodelling factor Brg1 is essential for adult heart regeneration. Brg1 mRNA and protein are induced during heart regeneration. Transgenic over-expression of dominant-negative Xenopus Brg1 inhibits the formation of BrdU(+)/Mef2C(+) and Tg(gata4:EGFP) cardiomyocytes, leading to severe cardiac fibrosis and compromised myocardial regeneration. RNA-seq and RNAscope analyses reveal that inhibition of Brg1 increases the expression of cyclin-dependent kinase inhibitors such as cdkn1a and cdkn1c in the myocardium after ventricular resection; and accordingly, myocardial-specific expression of dn-xBrg1 blunts myocardial proliferation and regeneration...
December 8, 2016: Nature Communications
https://www.readbyqxmd.com/read/27928254/diagnosing-myocardial-contusion-after-blunt-chest-trauma
#2
REVIEW
Zahra Alborzi, Vahid Zangouri, Shahram Paydar, Zahra Ghahramani, Masih Shafa, Bizhan Ziaeian, Mohammad Reza Radpey, Armin Amirian, Shahin Khodaei
A myocardial contusion refers to a bruise of the cardiac muscle, the severity of which can vary depending on the severity of the injury and when the injury occurs. It is a major cause of rapid death which happens after blunt chest trauma and should be suspected at triage in the emergency department. We demonstrated that suspected myocardial contusion patients who have normal electrocardiograms (ECGs) and biomarker tests can be safely discharged. However, if the test results are abnormal, the next steps should be echocardiography and more advanced measures...
April 13, 2016: Journal of Tehran Heart Center
https://www.readbyqxmd.com/read/27889903/a-case-report-hemothorax-caused-by-rupture-of-the-left-atrial-appendage
#3
Hiroaki Oizumi, Kenji Suzuki, Hironobu Hoshino, Takahiro Tatsumori, Hideomi Ichinokawa
Cardiac rupture is defined as a full-thickness myocardial tear; this injury after blunt chest trauma is rare, and is associated with high mortality. Blunt cardiac rupture typically presents with either cardiac tamponade or massive hemothorax, and is often unrecognized in the context of blunt chest trauma. It is a little known fact that pericardial effusions can decrease due to pericardial lacerations. Hence, cardiac rupture with pericardial lacerations may be easily overlooked especially by chest surgeons. We herein report a case of hemothorax caused by rupture of the left atrial appendage...
December 2016: Surgical Case Reports
https://www.readbyqxmd.com/read/27855275/epidemiology-and-aetiology-of-traumatic-cardiac-arrest-in-england-and-wales-a-retrospective-database-analysis
#4
Ed Barnard, David Yates, Antoinette Edwards, Marisol Fragoso-Iñiguez, Tom Jenks, Jason E Smith
BACKGROUND: Historically, reported survival from traumatic cardiac arrest (TCA) was extremely low. More recent publications have recorded survival to discharge of up to 8%. This improvement is likely to be multi-factorial; however, there are currently no published data describing the epidemiology or aetiology of TCA in England and Wales to guide future practice improvement. METHODS: Population-based analysis of 2009-2015 Trauma Audit and Research Network (TARN) data...
November 14, 2016: Resuscitation
https://www.readbyqxmd.com/read/27824672/the-feasibility-of-dual-energy-computed-tomography-in-cardiac-contusion-imaging-for-mildest-blunt-cardiac-injury
#5
Recep Sade, Mecit Kantarci, Hayri Ogul, Ummugulsum Bayraktutan, Mustafa Uzkeser, Sahin Aslan, Enbiya Aksakal, Necip Becit
PURPOSE: The purpose of this study was to evaluate the efficiency and feasibility of dual-energy computed tomography (DECT) used in the diagnosis of cardiac contusion with the mildest blunt cardiac injury. MATERIAL AND METHODS: This study was performed between February 2014 and September 2015; a total of 17 consecutive patients (10 men and 7 women; median age, 51 years [range: 20-78]) were enrolled in the study. The DECT was performed within 48 hours of the trauma and a subsequent follow-up DECT was performed a little less than 1 year after the first examination...
November 7, 2016: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/27780234/early-fluid-resuscitation-by-lactated-ringer-s-solution-alleviate-the-cardiac-apoptosis-in-rats-with-trauma-hemorrhagic-shock
#6
Kuan-Ho Lin, Chien-Liang Liu, Wei-Wen Kuo, Catherine Reena Paul, Wei-Kung Chen, Su-Ying Wen, Cecilia Hsuan Day, Hsi-Chin Wu, Vijaya Padma Viswanadha, Chih-Yang Huang
Cardiac trauma has been recognized as a complication associated with blunt chest trauma involving coronary artery injury, myocardium contusion and myocardial rupture. Secondary cardiac injuries after trauma supposed to be a critical factor in trauma patients, but the mechanism is not fully explored. Overproduction of TNF-alpha had been reported in multiple trauma animals, this induces oxidative stress resulting in cardiac apoptosis. Apoptosis gradually increases after trauma and reaches to a maximum level in 12 h time...
2016: PloS One
https://www.readbyqxmd.com/read/27768660/identifying-potential-utility-of-resuscitative-endovascular-balloon-occlusion-of-the-aorta-an-autopsy-study
#7
Bellal Joseph, Kareem Ibraheem, Ansab A Haider, Narong Kulvatunyou, Andrew Tang, Terence O'Keeffe, Zachary M Bauman, Donald J Green, Rifat Latifi, Peter Rhee
BACKGROUND: Resuscitative thoracotomy (RT) has been the standard therapy in patients with acute arrest due to hemorrhagic shock. However, with the development of resuscitative endovascular balloon occlusion of the aorta (REBOA), its role as a potential adjunct to a highly morbid intervention such as RT is being discussed. The aim of this study was to identify patients who most likely would have potentially benefited from REBOA use based on autopsy findings. METHODS: We performed a 4-year retrospective review of all RTs performed at our Level I trauma center...
November 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27757734/adiponectin-exerts-cardioprotection-against-ischemia-reperfusion-injury-partially-via-calreticulin-mediated-anti-apoptotic-and-anti-oxidative-actions
#8
Yang Sun, Dajun Zhao, Yang Yang, Chao Gao, Xing Zhang, Zhiqiang Ma, Shuai Jiang, Lin Zhao, Wenhao Chen, Kai Ren, Wei Yi, Feng Gao
The underlying mechanisms of cardioprotection of adiponectin (APN) against ischemia/reperfusion (I/R) injury remain largely unknown. The present study aimed to investigate whether calreticulin (CRT) mediated APN's cardioprotection against I/R injury. We inhibited mice cardiac CRT expression via intra-myocardial injection of CRT SiRNA, performed transient LAD ligation, measured the cardiac function, apoptosis and oxidative stress to identify CRT's effects on cardioprotective actions of APN against I/R injury in vivo...
October 18, 2016: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/27753144/melatonin-rescues-cardiac-thioredoxin-system-during-ischemia-reperfusion-injury-in-acute-hyperglycemic-state-by-restoring-notch1-hes1-akt-signaling-in-a-membrane-receptor-dependent-manner
#9
Liming Yu, Chongxi Fan, Zhi Li, Jian Zhang, Xiaodong Xue, Yinli Xu, Guolong Zhao, Yang Yang, Huishan Wang
Stress hyperglycemia is commonly observed in patients suffering from ischemic heart disease. It not only worsens cardiovascular prognosis but also attenuates the efficacies of various cardioprotective agents. This study aimed to investigate the protective effect of melatonin against myocardial ischemia-reperfusion (MI/R) injury in acute hyperglycemic state with a focus on Notch1/Hes1/Akt signaling and intracellular thioredoxin (Trx) system. Sprague-Dawley rats were subjected to MI/R surgery and high glucose (HG, 500 g/L) infusion (4 ml/kg/h) to induce temporary hyperglycemia...
October 18, 2016: Journal of Pineal Research
https://www.readbyqxmd.com/read/27668913/interventricular-septal-pseudoaneurysm-after-blunt-chest-trauma-in-a-6-year-old-an-illustrative-case-and-review
#10
Natalie Behrle, Peter Dyke, Abdallah Dalabih
Motor vehicle accident is the most common cause of blunt cardiac injury (BCI) in children (85.3%) due to the height of the child in relation to proper restraints and the compliant pediatric rib cage (J Trauma. 1996;40:200-202). Trauma to the chest wall may lead to injury of the myocardium, resulting in myocardial contusion, ventricular septal defect (VSD), ventricular free wall rupture, or valve compromise (J Trauma. 1996;40; 200-202; Heart Lung. 2012;41:200-202; J Inj Violence Res. 2012;4:98-100). There are several proposed mechanisms for the formation of VSD after blunt chest trauma including rupture of ischemic myocardium related to the initial trauma and reopening of a spontaneously closed congenital VSD...
September 23, 2016: Pediatric Emergency Care
https://www.readbyqxmd.com/read/27618167/challenges-enrolling-children-into-traumatic-brain-injury-trials-an-observational-study
#11
Rachel M Stanley, Michael D Johnson, Cheryl Vance, Lalit Bajaj, Lynn Babcock, Shireen Atabaki, Danny Thomas, Harold K Simon, Daniel M Cohen, Daniel Rubacalva, P David Adelson, Blake Bulloch, Alexander J Rogers, Prashant Mahajan, Jill Baren, Lois Lee, John Hoyle, Kimberly Quayle, T Charles Casper, J Michael Dean, Nathan Kuppermann
OBJECTIVES: In preparation for a clinical trial of therapeutic agents for children with moderate-to-severe blunt traumatic brain injuries (TBIs) in emergency departments (EDs), we conducted this feasibility study to 1) determine the number and clinical characteristics of eligible children, 2) determine the timing of patient and guardian arrival to the ED, and 3) describe the heterogeneity of TBIs on computed tomography (CT) scans. METHODS: We conducted a prospective observational study at 16 EDs of children ≤ 18 years of age presenting with blunt head trauma and Glasgow Coma Scale (GCS) scores of 3-12...
September 12, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/27608980/treatment-with-rhus-tripartita-extract-curtails-isoproterenol-elicited-cardiotoxicity-and-oxidative-stress-in-rats
#12
Abdelaaty A Shahat, Mansour S Alsaid, Syed Rafatullah, Mohammed O Al-Sohaibani, Mohammad K Parvez, Mohammed S Al-Dosari, Vassiliki Exarchou, Luc Pieters
BACKGROUND: Consumption of plant-derived nutraceuticals and crude drugs in traditional medicine is widely believed to confer beneficial effects in thwarting the progression of cardiovascular diseases. Rhus tripartita (family Anacardiaceae) has been traditionally used to treat a wide range of ailments. METHODS: In the present study we investigated the protective effects of an alcoholic extract of the stem part of Rhus tripartita male genotype (RTSM) on experimentally induced myocardial injury in rats...
2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27594656/implantable-cardioverter-defibrillators-and-permanent-pacemakers-prevalence-and-patient-outcomes-after-trauma
#13
Maria S Altieri, Ibrahim Almasry, Tyler Jones, Christa McPhee, Jane E McCormack, Emily C Huang, Patricia Eckardt, Marc J Shapiro, Sarah Eckardt, James A Vosswinkel, Randeep S Jawa
BACKGROUND: The prevalence and outcomes of older trauma patients with implantable cardioverter defibrillators (ICDs) or permanent pacemakers (PPMs) is unknown. METHODS: The trauma registry at a regional trauma center was reviewed for blunt trauma patients, aged ≥ 60 years, admitted between 2007 and 2014. Medical records of cardiac devices patients were reviewed. RESULTS: Of 4,193 admissions, there were 146 ICD, 233 PPM, and 3,814 no device patients; median Injury Severity Score was 9...
August 4, 2016: American Journal of Surgery
https://www.readbyqxmd.com/read/27574681/unstable-cardiac-injury-complicated-with-septic-shock-a-challenge
#14
Neha Garg, Kapil Dev Soni, Richa Aggarwal
BACKGROUND: Road traffic accident accounts for 70 % to 80 % of the blunt cardiac injury. The true incidence varies in the literature due to non-uniform criteria for diagnosis. CASE PRESENTATION: Here, we describe the case of a young male presenting after blunt chest injury and hemodynamic instability. Initially, the patient had frequent episodes of arrhythmias and hypotension due to cardiac injury per se. However, he was stabilized by day 2. Subsequently, patient developed cellulitis followed by septic shock and succumbed to cellulitis on day 5 of injury...
2016: Burns and trauma
https://www.readbyqxmd.com/read/27567923/prehospital-intubation-for-isolated-severe-blunt-traumatic-brain-injury-worse-outcomes-and-higher-mortality
#15
Tobias Haltmeier, Elizabeth Benjamin, Stefano Siboni, Evren Dilektasli, Kenji Inaba, Demetrios Demetriades
PURPOSE: Prehospital endotracheal intubation (ETI) for traumatic brain injury (TBI) is a controversial issue. The aim of this study was to investigate the effect of prehospital ETI in patients with TBI. METHODS: Cohort-matched study using the US National Trauma Data Bank (NTDB) 2008-2012. Patients with isolated severe blunt TBI (AIS head ≥3, AIS chest/abdomen <3) and a field GCS ≤8 were extracted from NTDB. A 1:1 matching of patients with and without prehospital ETI was performed...
August 27, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/27564238/cerebral-microcirculation-during-mild-head-injury-after-a-contusion-and-acceleration-experimental-model-in-sheep
#16
Judith Bellapart, Catherine Abi-Fares, Kylie Cuthbertson, Kimble Dunster, Sara Diab, David G Platts, Christopher Raffel, Levon Gabrielian, Adrian Barnett, Jennifer Paratz, Rob Boots, John F Fraser
BACKGROUND: Cerebral microcirculation after head injury is heterogeneous and temporally variable. Regions at risk of infarction such as peri-contusional areas are vulnerable to anaemia. However, direct quantification of the cerebral microcirculation is clinically not feasible. This study describes a novel experimental head injury model correlating cerebral microcirculation with histopathology analysis. OBJECTIVE: To test the hypothesis that cerebral microcirculation at the ischaemic penumbrae is reduced over time when compared with non-injured regions...
August 26, 2016: Brain Injury: [BI]
https://www.readbyqxmd.com/read/27501709/the-role-of-troponin-in-blunt-cardiac-injury-after-multiple-trauma-in-humans
#17
Miriam Kalbitz, Jochen Pressmar, Johanna Stecher, Birte Weber, Manfred Weiss, Stephan Schwarz, Erich Miltner, Florian Gebhard, Markus Huber-Lang
BACKGROUND: The incidence of cardiac injury in immediate fatalities after blunt trauma remains underestimated, and reliable diagnostic strategies are still missing. Furthermore, clinical data concerning heart-specific troponin serum levels, injury severity score (ISS), catecholamine treatment and survival of patients on admission to the hospital have rarely been interrelated so far. Therefore, the object of the present study was to identify predictive parameters for mortality in the context of blunt cardiac injury...
August 8, 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/27499975/urgent-pulmonary-lobectomy-for-blunt-chest-trauma-report-of-three-cases-without-mortality
#18
Marco Chiarelli, Martino Gerosa, Angelo Guttadauro, Francesco Gabrielli, Giuseppe Vertemati, Massimo Cazzaniga, Luca Fumagalli, Matilde De Simone, Ugo Cioffi
BACKGROUND: The majority of patients with severe blunt chest trauma is successfully treated with supportive measures and thoracostomy tube; only few cases need urgent thoracotomy. Lung-sparing techniques are treatments of choice but major pulmonary resections are necessary in case of injuries involving hilar vessels or bronchi. Currently the mortality associated with pulmonary lobectomy performed for chest trauma is 40%. METHODS: Over a 2-year period [2013-2014], 210 patients with chest trauma were hospitalized at our Institution...
July 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/27484355/coronary-artery-rupture-in-blunt-thoracic-trauma-a-case-report-and-review-of-literature
#19
Jareer Heider Abu-Hmeidan, Arief Ismael Arrowaili, Raid Said Yousef, Sami Alasmari, Yasser M Kassim, Hamad Hamad Aldakhil Allah, Abdullah Mohammed Aljenaidel, Abdullah Abdulmohsen Alabdulqader, Muath Hamad Alrashed, Mulfi Ibrahim Alkhinjar, Nawwaf Rahi Al-Shammari
BACKGROUND: Blunt thoracic trauma can rarely result in coronary artery injury. Blunt trauma can result in occlusion of any of the coronary arteries or can lead to its rupture and bleeding. Traumatic coronary artery occlusion can lead to myocardial infarction, while its rupture and bleeding can result in hemopericardium and cardiac tamponade, and can be rapidly fatal. Survival after coronary artery rupture in blunt thoracic trauma is exceedingly rare. CASE PRESENTATION: We present a case of a young male who sustained a blunt thoracic trauma in a motor vehicle collision, that resulted in rupture of the left anterior descending (LAD) coronary artery and subsequent cardiac tamponade...
August 2, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27381403/blunt-force-trauma-in-veterinary-forensic-pathology
#20
L Ressel, U Hetzel, E Ricci
Veterinary pathologists commonly encounter lesions of blunt trauma. The development of lesions is affected by the object's mass, velocity, size, shape, and angle of impact and by the plasticity and mobility of the impacted organ. Scrape, impact, and pattern abrasions cause localized epidermal loss and sometimes broken hairs and implanted foreign material. Contusions are best identified after reflecting the skin, and must be differentiated from coagulopathies and livor mortis. Lacerations-traumatic tissue tears-may have irregular margins, bridging by more resilient tissue, deviation of the wound tail, crushed hairs, and unilateral abrasion...
September 2016: Veterinary Pathology
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