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junctional hemorrhage

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https://www.readbyqxmd.com/read/28440519/-prevention-diagnosis-and-treatment-of-perioperative-complications-of-bariatric-and-metabolic-surgery
#1
Haifu Wu, Ming Zhong, Di Zhou, Chenye Shi, Heng Jiao, Wei Wu, Xinxia Chang, Jing Cang, Hua Bian
Surgical operation in treating obesity and type 2 diabetes is popularizing rapidly in China. Correct prevention and recognition of perioperation-related operative complications is the premise of ensuring surgical safety. Familiar complications of the operation include deep venous thrombosis, pulmonary artery embolism, anastomotic bleeding, anastomotic fistula and marginal ulcer. The prevention of deep venous thrombosis is better than treatment. The concrete measures contain physical prophylaxis (graduated compression stocking and intermittent pneumatic compression leg sleeves) and drug prophylaxis (unfractionated heparin and low molecular heparin), and the treatment is mainly thrombolysis or operative thrombectomy...
April 25, 2017: Zhonghua Wei Chang Wai Ke za Zhi, Chinese Journal of Gastrointestinal Surgery
https://www.readbyqxmd.com/read/28432520/unexpected-death-after-occipital-condylar-fracture
#2
Vincent J Bulthuis, E M J Cornips, J Dings, H van Santbrink, A A Postma
We present a rare fatal complication of an occipital condylar fracture. The patient was initially neurologically intact, but showed secondary clinical deterioration. Imaging revealed extensive extra-axial hemorrhage at the craniocervical junction and an acute obstructive hydrocephalus. MR imaging demonstrated a T2 hyperintens signal in both the lower brainstem and upper cervical spinal cord, likely caused by the extra-axial hemorrhage. As prognosis was estimated infaust, supportive treatment was discontinued and the patient died soon thereafter...
April 21, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28428059/the-decreased-growth-performance-and-impaired-immune-function-and-structural-integrity-by-dietary-iron-deficiency-or-excess-are-associated-with-tor-nf-%C3%AE%C2%BAb-p38mapk-nrf2-and-mlck-signaling-in-head-kidney-spleen-and-skin-of-grass-carp-ctenopharyngodon-idella
#3
Yan-Lin Guo, Wei-Dan Jiang, Pei Wu, Yang Liu, Xiao-Qiu Zhou, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Lin Feng
This study was conducted to investigate the effects of dietary iron on the growth, and immune function and structural integrity in head kidney, spleen and skin as well as the underlying signaling of young grass carp (Ctenopharyngodon idella). Total 630 grass carp (242.32 ± 0.58 g) were fed diets containing graded levels of iron at 12.15 (basal diet), 35.38, 63.47, 86.43, 111.09, 136.37 mg/kg (diets 2-6 were added with ferrous fumarate) and 73.50 mg/kg (diet 7 was added with ferrous sulfate) diet for 60 days...
April 18, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28427959/beneficial-effects-of-heparin-and-l-arginine-on-dermonecrosis-effect-induced-by-vipera-lebetina-venom-involvement-of-no-in-skin-regeneration
#4
Nouara Bennacef-Heffar, Fatima Laraba-Djebari
It is well known that snake venoms such as Viperidae caused severe local effects such as hemorrhage, myonecrosis and dermonecrosis which can lead to permanent tissue loss or the disability. The aim of this study is to evaluate the skin regeneration using heparin and l-arginine as well as the dermonecrotic effects induced by Vipera lebetina venom (VLV). To better understand the toxic effects induced by VLV and to prevent or treat these effects, we evaluate the local effects and the skin regeneration with or without drugs...
April 17, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28420171/pannexin-and-connexin-mediated-intercellular-communication-in-platelet-function
#5
REVIEW
Filippo Molica, Florian B Stierlin, Pierre Fontana, Brenda R Kwak
The three major blood cell types, i.e., platelets, erythrocytes and leukocytes, are all produced in the bone marrow. While red blood cells are the most numerous and white cells are the largest, platelets are small fragments and account for a minor part of blood volume. However, platelets display a crucial function by preventing bleeding. Upon vessel wall injury, platelets adhere to exposed extracellular matrix, become activated, and form a platelet plug preventing hemorrhagic events. However, when platelet activation is exacerbated, as in rupture of an atherosclerotic plaque, the same mechanism may lead to acute thrombosis causing major ischemic events such as myocardial infarction or stroke...
April 17, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28405532/spinal-schwannoma-with-intradural-intramedullary-hemorrhage
#6
Muhammad Nadeem, Salman Mansoor, Salman Assad, Fariha Ilyas, Ahmed H Qavi, Shoab Saadat
Patients with spinal abnormalities infrequently present with intradural intramedullary bleeding. The more common causes include spinal trauma, arteriovenous malformations and saccular aneurysms of spinal arteries. On occasion, spinal cord tumors either primary or metastatic may cause intramedullary bleed with ependymoma of the conus medullaris. Spinal nerve sheath tumors such as schwannomas only rarely cause intradural intramedullary bleed, especially in the absence of spinal cord or nerve root symptoms. We report a case of spinal intradural schwannoma presenting with acute onset of quadriparesis...
March 6, 2017: Curēus
https://www.readbyqxmd.com/read/28383477/the-damage-control-surgery-in-austere-environments-research-group-dcsaerg-a-dynamic-program-to-facilitate-real-time-tele-mentoring-tele-diagnosis-to-address-exsanguination-in-extreme-and-austere-environments
#7
Andrew W Kirkpatrick, Jessica McKee, Paul B McBeth, Chad G Ball, Anthony LaPorta, Timothy Broderick, Tim Leslie, David King, Heather Wright-Beatty, Jocelyn Keillor, Homer Tien
Hemorrhage is the most preventable cause of post-traumatic death. Many cases are potentially anatomically salvageable, yet remain lethal without logistics or trained personnel to deliver diagnosis or Resuscitative-surgery in austere-environments. Revolutions in technology for remote-mentoring of ultrasound and surgery may enhance capabilities to utilize the skill-sets of non-physicians. Thus, our Research-Collaborative explored remote-mentoring to empower non-physicians to address junctional and torso hemorrhage-control in Austere-environments...
April 5, 2017: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28318990/junctional-hemorrhage-control-for-tactical-combat-casualty-care
#8
REVIEW
Russ S Kotwal, Frank K Butler
During historic, as well as more recent, conflicts, most combat casualties who die from their injuries do so in the prehospital setting. Although many of the injuries incurred by these casualties are nonsurvivable, a number of injuries are still potentially survivable. Of those injuries that are potentially survivable, the majority are truncal, junctional, and extremity hemorrhage. Novel and effective approaches directed toward prehospital hemorrhage control have emerged in recent years, some of which can prove useful in the management of junctional hemorrhage whether in a military or civilian setting...
March 16, 2017: Wilderness & Environmental Medicine
https://www.readbyqxmd.com/read/28297830/-ct-typing-and-surgical-approach-for-adenocarcinoma-of-the-esophagogastric-junction
#9
Y Z Zhao, G S Han, P F Ma, J Li, C Y Liu, M K Huo
Objective: To investigate the feasibility, safety and efficacy of preoperative CT in the classification of adenocarcinoma of the esophagogastric junction. Methods: A total of 517 consecutive patients from May 2012 to June 2016 with esophagogastric junction carcinoma in the department of general surgery of Henan Cancer Hospital was retrospectively analyzed, according to the clinical pathological data of three type four layer method and statistics of various types of surgery in patients with preoperative enhanced CT...
March 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28297692/-ruptured-aneurysm-of-bihemispheric-anterior-cerebral-artery-a1-a2-junction-a-case-report
#10
Nao Shimooka, Shiromaru Ishida, Masato Kawai
We report a rare case with a ruptured aneurysm of the bihemispheric anterior cerebral artery(ACA), a rare anomaly of the ACA. A 50-year-old female experienced a sudden onset of severe posterior cervical pain. CT revealed diffuse subarachnoid hemorrhage(SAH)and intra cerebral hemorrhage of the left rectal gyrus. Cerebral angiography showed the left bihemispheric ACA and hypoplasia of the right ACA. A saccular aneurysm was indicated at the A1-A2 junction of the left bihemispheric ACA. A neck clipping was performed completely through the right transsylvian approach...
March 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28292653/co-circulating-serotypes-in-a-dengue-fever-outbreak-differential-hematological-profiles-and-phylogenetic-relationships-among-viruses
#11
Andreia Moreira Dos Santos Carmo, Rodrigo Buzinaro Suzuki, Aline Diniz Cabral, Renata Torres da Costa, Gabriela Pena Massari, Michele Marcondes Riquena, Helio Augusto Alves Fracasso, Andre Eterovic, Arlei Marcili, Márcia Aparecida Sperança
BACKGROUND: Dengue virus, represented by four distinct, genetically diverse serotypes, is the etiologic agent of asymptomatic to severe hemorrhagic diseases. The spatiotemporal dynamics of dengue serotypes and its association to specific diseases vary among the different regions worldwide. By 2007, and in São Paulo State, Brazil, dengue-case concentration in urban centers had changed to increased incidence in small- and medium-sized towns, the case of Marília. OBJECTIVES: The aim of this article was to distinguish dengue serotypes circulating during the 2007 Marília outbreak and define their association to demographic and hematological patient profiles, as well as the phylogenetic relationships among the different viruses...
March 6, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28288111/gpr124-is-essential-for-blood-brain-barrier-integrity-in-central-nervous-system-disease
#12
Junlei Chang, Michael R Mancuso, Carolina Maier, Xibin Liang, Kanako Yuki, Lu Yang, Jeffrey W Kwong, Jing Wang, Varsha Rao, Mario Vallon, Cynthia Kosinski, J J Haijing Zhang, Amanda T Mah, Lijun Xu, Le Li, Sharareh Gholamin, Teresa F Reyes, Rui Li, Frank Kuhnert, Xiaoyuan Han, Jenny Yuan, Shin-Heng Chiou, Ari D Brettman, Lauren Daly, David C Corney, Samuel H Cheshier, Linda D Shortliffe, Xiwei Wu, Michael Snyder, Pak Chan, Rona G Giffard, Howard Y Chang, Katrin Andreasson, Calvin J Kuo
Although blood-brain barrier (BBB) compromise is central to the etiology of diverse central nervous system (CNS) disorders, endothelial receptor proteins that control BBB function are poorly defined. The endothelial G-protein-coupled receptor (GPCR) Gpr124 has been reported to be required for normal forebrain angiogenesis and BBB function in mouse embryos, but the role of this receptor in adult animals is unknown. Here Gpr124 conditional knockout (CKO) in the endothelia of adult mice did not affect homeostatic BBB integrity, but resulted in BBB disruption and microvascular hemorrhage in mouse models of both ischemic stroke and glioblastoma, accompanied by reduced cerebrovascular canonical Wnt-β-catenin signaling...
April 2017: Nature Medicine
https://www.readbyqxmd.com/read/28285483/a-perspective-on-the-potential-for-battlefield-resuscitative-endovascular-balloon-occlusion-of-the-aorta
#13
Ryan M Knight
Resuscitative endovascular balloon occlusion of the aorta (REBOA) has a place in civilian trauma centers in the United States, and British physicians performed the first prehospital REBOA, proving the concept viable for civilian emergency medical service. Can this translate into battlefield REBOA to stop junctional hemorrhage and extend "golden hour" rings in combat? If yes, at what level is this procedure best suited and what does it entail? This author's perspective, after treating patients on the battlefield and during rotary wing evacuation, is that REBOA may have a place in prehospital resuscitation but patient and provider selection are paramount...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28285476/resuscitative-endovascular-balloon-occlusion-of-the-aorta-pushing-care-forward
#14
William Teeter, Anna Romagnoli, Jacob Glaser, Andrew D Fisher, Jason Pasley, Brian Scheele, Melanie Hoehn, Megan Brenner
BACKGROUND: Resuscitative endovascular balloon occlusion of the aorta (REBOA), used to temporize noncompressible and junctional hemorrhage, may be deployable to the forward environment. Our hypothesis was that nonsurgeon physicians and high-level military medical technicians would be able to learn the theory and insertion of REBOA. METHODS: US Army Special Operations Command medical personnel without prior endovascular experience were included. All participants received didactic instruction of the Basic Endovascular Skills for Trauma Course™ together, with individual evaluation of technical skills...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28271297/dural-arteriovenous-fistula-manifesting-as-pontine-hemorrhage-at-the-craniocervical-junction
#15
Xuan Liu, Atsushi Ogata, Jun Masuoka, Kohei Inoue, Yukiko Nakahara, Shoko Shimokawa, Yukinori Takase, Yusuke Yakushiji, Hideo Hara, Tatsuya Abe
Craniocervical junction (CCJ) dural arteriovenous fistula (DAVF) manifesting as intracerebral hemorrhage is extremely rare. We report the first case of CCJ-DAVF manifesting as pontine hemorrhage. A 69-year-old male presented with a pontine hemorrhage manifesting as a sudden onset of right hemiparesis and dysarthria. Digital subtraction angiography revealed a CCJ-DAVF fed by the meningeal branches of the right vertebral artery. The patient underwent surgical ligation of the cerebral draining veins to prevent re-bleeding...
May 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28244141/claudin-domain-containing-1-contributing-to-endothelial-cell-adhesion-decreases-in-presence-of-cerebellar-hemorrhage
#16
Masatoshi Ohnishi, Hiroyuki Ochiai, Kohei Matsuoka, Marina Akagi, Yuta Nakayama, Akiho Shima, Arisa Uda, Hiroshi Matsuoka, Jun Kamishikiryo, Akihiro Michihara, Atsuko Inoue
The claudin family comprises four-pass transmembrane proteins involved in the formation of tight junctions (TJs). Relatively recently, claudin domain containing (CLDND) 1, also known as claudin-25, was identified as a novel member of the claudin family. In the present study, we revealed that in the adult murine brain, CLDND1 is abundant in the cerebellum among common sites of intracerebral hemorrhage. Thus, the dynamics of CLDND1 after cerebellar hemorrhage were examined. Both CLDND1 mRNA and protein levels transiently decreased at 24 hr after hemorrhagic insult...
February 28, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28192254/effect-of-dietary-phosphorus-deficiency-on-the-growth-immune-function-and-structural-integrity-of-head-kidney-spleen-and-skin-in-young-grass-carp-ctenopharyngodon-idella
#17
Kang Chen, Wei-Dan Jiang, Pei Wu, Yang Liu, Sheng-Yao Kuang, Ling Tang, Wu-Neng Tang, Yong-An Zhang, Xiao-Qiu Zhou, Lin Feng
This study evaluates the effects of dietary phosphorus on the growth, immune function and structural integrity (head kidney, spleen and skin) of young grass carp (Ctenopharyngodon idella) that were fed graded levels of available phosphorus (0.95-8.75 g/kg diet). Results indicated that phosphorus deficiency decreased the growth performance of young grass carp. In addition, the results first demonstrated that compared with the optimal phosphorus level, phosphorus deficiency depressed the lysozyme (LZ) and acid phosphatase (ACP) activities and the complement 3 (C3), C4 and immunoglobulin M (IgM) contents, and down-regulated the mRNA levels of antimicrobial peptides, anti-inflammatory cytokines, inhibitor of κBα (IκBα) and target of rapamycin (TOR), whereas it up-regulated pro-inflammatory cytokines, nuclear factor kappa B (NF-κB) p65 and NF-κB p52 mRNA levels to decrease fish head kidney and spleen immune functions...
February 10, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28188419/angiographic-doughnut-shaped-aneurysm-of-intracranial-internal-carotid-artery
#18
Chung-Hsin Lee, Chih-Hsiang Liao, Wen-Hsien Chen, Hsu-Tung Lee, Yuang-Seng Tsuei
Morphologic characteristics of angiographic doughnut-shaped aneurysms of the intracranial internal carotid artery (ICA) have been rarely reported in the literature and were discussed only radiologically. In this case, surgical clipping was performed, and the specimen from the aneurysm was examined to correlate the pathologic findings and morphologic characteristics. A 59-year-old male presented with diffuse subarachnoid hemorrhage secondary to a ruptured vascular lesion originating from the intracranial portion of the right ICA...
April 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28143902/pdzrn3-destabilizes-endothelial-cell-cell-junctions-through-a-pkc%C3%AE-containing-polarity-complex-to-increase-vascular-permeability
#19
Raj N Sewduth, Héléna Kovacic, Béatrice Jaspard-Vinassa, Vincent Jecko, Thomas Wavasseur, Nicolas Fritsch, Mathieu Pernot, Sylvie Jeaningros, Etienne Roux, Pascale Dufourcq, Thierry Couffinhal, Cécile Duplàa
Endothelial cells serve as a barrier between blood and tissues. Maintenance of the endothelial cell barrier depends on the integrity of intercellular junctions, which is regulated by a polarity complex that includes the ζ isoform of atypical protein kinase C (PKCζ) and partitioning defective 3 (PAR3). We revealed that the E3 ubiquitin ligase PDZ domain-containing ring finger 3 (PDZRN3) regulated endothelial intercellular junction integrity. Endothelial cell-specific overexpression of Pdzrn3 led to early embryonic lethality with severe hemorrhaging and altered organization of endothelial intercellular junctions...
January 31, 2017: Science Signaling
https://www.readbyqxmd.com/read/28133560/endoscopic-resection-of-skull-base-teratoma-in-klippel-feil-syndrome-through-use-of-combined-ultrasonic-and-bipolar-diathermy-platforms
#20
Justin A Edward, Alkis J Psaltis, Ryan A Williams, Gregory W Charville, Robert L Dodd, Jayakar V Nayak
Klippel-Feil syndrome (KFS) is associated with numerous craniofacial abnormalities but rarely with skull base tumor formation. We report an unusual and dramatic case of a symptomatic, mature skull base teratoma in an adult patient with KFS, with extension through the basisphenoid to obstruct the nasopharynx. This benign lesion was associated with midline palatal and cerebral defects, most notably pituitary and vertebrobasilar arteriolar duplications. A multidisciplinary workup and a complete endoscopic, transnasal surgical approach between otolaryngology and neurosurgery were undertaken...
2017: Case Reports in Otolaryngology
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