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https://www.readbyqxmd.com/read/28749042/the-use-of-intravesicular-alteplase-for-thrombolysis-in-a-dog-with-urinary-bladder-thrombi
#1
Kimberly S Hooi, Julie D Lemetayer
OBJECTIVE: To describe the use of alteplase for intravesicular thrombolysis in a dog after development of urinary tract obstruction from a blood clot in the urinary bladder. CASE SUMMARY: A 5.8 kg, 6.5-year-old female neutered Bichon Frise was presented for signs of acute hematuria. A complete blood count (CBC) revealed marked thrombocytopenia and leukopenia, and nonregenerative anemia. Bone marrow aspirate cytology revealed mild hypercellularity, mild megakaryocytic hyperplasia, mildly left-shifted erythroid maturation, and moderately left-shifted myeloid maturation, suggesting ongoing recovery from an acute bone marrow insult...
July 27, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28748411/the-role-of-von-willebrand-factor-in-thrombotic-microangiopathy
#2
REVIEW
Damien G Noone, Magdalena Riedl, Christoph Licht
Thrombotic microangiopathy (TMA) is caused by thrombus formation in the microvasculature. The disease spectrum of TMA includes, amongst others, thrombotic thrombocytopenic purpura (TTP) and atypical haemolytic uraemic syndrome (aHUS). TTP is caused by defective cleavage of von Willebrand factor (VWF), whereas aHUS is caused by overshooting complement activation and subsequent endothelial cell (EC) injury. Despite their distinct pathophysiology, the clinical manifestation of TTP and aHUS consisting of microangiopathic haemolytic anaemia and thrombocytopenia is often similar and difficult to distinguish...
July 26, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28748161/thrombus-aspiration-in-primary-percutaneous-coronary-intervention-still-a-valid-option-with-improved-technique-in-selected-patients
#3
EDITORIAL
Fabio Mangiacapra, Alessandro Sticchi, Emanuele Barbato
No abstract text is available yet for this article.
June 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28748160/requiem-for-routine-thrombus-aspiration
#4
EDITORIAL
Steffen Desch, Thomas Stiermaier, Holger Thiele, Suzanne de Waha
No abstract text is available yet for this article.
June 2017: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/28747159/a-case-report-of-ct-diagnosed-renal-infarct-secondary-to-syphilitic-aortitis
#5
Maaike Spaltenstein, Françoise Humbert, Diem-Lan Vu, Ilker Uçkay, Gregor John
BACKGROUND: Even though reported cases of syphilis have been increasing, cases of tertiary syphilis remain extremely rare. The majority of our knowledge with regard to complications of syphilis such as aortitis was acquired before the advent of relatively modern technologies such as CT, MRI and PET. This case report presents a rare case of syphilitic aortitis associated with a renal infarct caused by a peripheral arterial embolism diagnosed by CT. CASE PRESENTATION: We present a young man with sudden abdominal pain and flank tenderness without fever...
July 26, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28747040/glycative-and-oxidative-stress-are-associated-with-altered-thrombus-composition-in-diabetic-patients-with-st-elevation-myocardial-infarction
#6
Antonia Sambola, Marisol Ruiz-Meana, Ignasi Barba, Bruno García Del Blanco, José A Barrabés, G Y Lip, Úrsula Vilardosa, Sara Sansaloni, Pau Rello, David García-Dorado
BACKGROUND: The role of type 2 diabetes (T2DM) on composition of thrombus has not been fully characterized in patients with ST-elevation myocardial infarction (STEMI). AIMS: To elucidate the differences between diabetic and non-diabetic patients with STEMI in relation to the composition of coronary thrombus, and the potential association of these differences with glycated haemoglobin levels and markers of oxidative stress. METHODS: Intracoronary thrombi from consecutive thrombus aspiration procedures in STEMI patients, 25 diabetic and 28 non-diabetic, were analyzed by immunofluorescence with confocal microscopy...
September 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28745733/neutrophil-extracellular-trap-formation-upon-exposure-of-hydrophobic-materials-to-human-whole-blood-causes-thrombogenic-reactions
#7
Claudia Sperling, Marion Fischer, Manfred F Maitz, Carsten Werner
Neutrophil extracellular trap (NET) formation, a reaction of the innate immune system to fight pathogens, was shown to be involved in thrombus formation. In the present study blood-contacting biomaterials with graded surface characteristics were investigated as a potential cause of NET formation on medical devices. Surface properties are known to govern protein adsorption, cell adhesion and ultimately the activation of several other host defense pathways - potentially also the formation of NETs. Model materials of defined hydrophilic or hydrophobic properties (glass, and thin films of poly(ethylene-alt-maleic anhydride), self-assembled monolayers of methyl terminated alkanethiols, and Teflon AF™) were incubated either with isolated human granulocytes after pre-adsorption with plasma proteins or with human whole blood...
July 26, 2017: Biomaterials Science
https://www.readbyqxmd.com/read/28744928/evaluation-of-left-atrial-thrombus-prior-to-catheter-ablation-of-atrial-fibrillation-is-it-time-for-an-individualized-approach
#8
EDITORIAL
Avishag Laish-Farkash, Mahmoud Suleiman
No abstract text is available yet for this article.
July 26, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28744689/pediatric-cerebellar-giant-cavernous-malformation-case-report-and-review-of-literature
#9
Javier Villaseñor-Ledezma, Marcelo Budke, Juan-Antonio Alvarez-Salgado, María-Angeles Cañizares, Luis Moreno, Francisco Villarejo
BACKGROUND AND IMPORTANCE: Giant cavernous malformations (GCM) are low flow, angiographically occult vascular lesions, with a diameter >4 cm. Cerebellar GCMs are extremely rare, with only seven cases reported based on English literature. These lesions are most commonly seen in the pediatric age group, which is known to have an increased risk of hemorrhage, being surgery clearly recommended. CLINICAL PRESENTATION: An 18-month-old girl presented with a 6-month history of cervical torticollis and upper extremities clumsiness...
July 25, 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28743887/tumor-derived-exosomes-induce-the-formation-of-neutrophil-extracellular-traps-implications-for-the-establishment-of-cancer-associated-thrombosis
#10
Ana C Leal, Daniella M Mizurini, Tainá Gomes, Natalia C Rochael, Elvira M Saraiva, Marcos S Dias, Claudio C Werneck, Micheli S Sielski, Cristina P Vicente, Robson Q Monteiro
Cancer patients are at an increased risk of developing thromboembolic complications. Several mechanisms have been proposed to explain cancer-associated thrombosis including the release of tumor-derived extracellular vesicles and the activation of host vascular cells. It was proposed that neutrophil extracellular traps (NETs) contribute to the prothrombotic phenotype in cancer. In this study, we evaluated the possible cooperation between tumor-derived exosomes and NETs in cancer-associated thrombosis. Female BALB/c mice were orthotopically injected with 4T1 breast cancer cells...
July 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28743718/twinfilin-2a-is-a-regulator-of-platelet-reactivity-and-turnover-in-mice
#11
Simon Stritt, Sarah Beck, Isabelle C Becker, Timo Vögtle, Markku Hakala, Katrin G Heinze, Xiaoping Du, Markus Bender, Attila Braun, Pekka Lappalainen, Bernhard Nieswandt
Regulated reorganization of the actin cytoskeleton is a prerequisite for proper platelet production and function. Consequently, defects in proteins controlling actin dynamics have been associated with platelet disorders in humans and mice. Twinfilin 2a (Twf2a) is a small actin-binding protein, which inhibits actin filament assembly by sequestering actin monomers and by capping filament barbed ends. Moreover, Twf2a binds heterodimeric capping proteins, but the role of this interaction in cytoskeletal dynamics has remained elusive...
July 25, 2017: Blood
https://www.readbyqxmd.com/read/28743375/a-model-based-prediction-of-the-probability-of%C3%A2-hepatocellular%C3%A2-adenoma-and-focal-nodular-hyperplasia%C3%A2-based%C3%A2-on-characteristics-on-contrast-enhanced%C3%A2-ultrasound
#12
Pavel Taimr, Mirelle E E Bröker, Roy S Dwarkasing, Bettina E Hansen, Robert J de Knegt, Robert A De Man, Jan N M IJzermans
Contrast-enhanced ultrasound (CEUS) is an emerging imaging technique that is increasingly used to diagnose liver lesions. It is of the utmost importance to differentiate between the two most common solid focal liver lesions (i.e., hepatocellular adenoma [HCA] and focal nodular hyperplasia [FNH]), because their management and follow-up differ greatly. The main objective of this study was to determine how frequently the specific CEUS features of HCA and FNH are visible on CEUS and to define their predictive value for discrimination between HCA and FNH...
July 22, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28743158/thrombus-formation-4-years-after-percutaneous-transcatheter-closure-of-an-atrial-septal-defect
#13
Akihisa Furuta, Mitsugi Nagashima, Hisashi Sugiyama, Takahiko Sakamoto, Kenji Yamazaki
No abstract text is available yet for this article.
July 25, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28742731/endoscopic-ultrasound-guided-portal-venous-access-diagnostic-and-therapeutic-implications
#14
Rajat Garg, Tarun Rustagi
Endoscopic ultrasound (EUS) has evolved from a purely diagnostic to an interventional modality offering minimally invasive alternatives to surgical and radiologic interventions. This has led to a rapidly growing interest in EUS-guided vascular interventions. EUS-guided portal venous access is an emerging technique which opens a new arena for interventional vascular EUS. Portal vein can be accessed under EUS guidance with high precision and low risk of complications thus expanding its application for both benign and malignant conditions...
July 24, 2017: Journal of Clinical Gastroenterology
https://www.readbyqxmd.com/read/28742189/novel-endogenous-negative-modulators-of-platelet-function-as-potential-anti-thrombotic-targets
#15
Y-J Li, H-X Zhu, D Zhang, H-C Li, P Ma, L-Y Huang
Platelets are megakaryocyte-derived nuclear-free fragments that participate in cardiovascular diseases including acute myocardial infarction, ischemic stroke, hypertension, and atherosclerosis. At the endothelium damage site, platelets interact with sub-endothelial matrix proteins such as glycoprotein VI/Fc receptor γ-chain (GPVI/FcRγ), G protein-coupled receptor/phospholipase Cγ(β) (GPCR/PLCγ(β)), Rho/RhoK and integrin. The activation of these signaling pathways triggers intracellular calcium increase and causes platelet adhesion, aggregation, granule release and finally thrombus formation...
July 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28742116/sutureless-microvascular-anastomosis-assisted-by-an-expandable-shape-memory-alloy-stent
#16
Noriko Saegusa, Shunji Sarukawa, Kunihiro Ohta, Kensuke Takamatsu, Mitsuhiro Watanabe, Takashi Sugino, Masahiro Nakagawa, Yasuto Akiyama, Masatoshi Kusuhara, Kazuo Kishi, Keita Inoue
Vascular anastomosis is the highlight of cardiovascular, transplant, and reconstructive surgery, which has long been performed by hand using a needle and suture. However, anastomotic thrombosis occurs in approximately 0.5-10% of cases, which can cause serious complications. To improve the surgical outcomes, attempts to develop devices for vascular anastomosis have been made, but they have had limitations in handling, cost, patency rate, and strength at the anastomotic site. Recently, indwelling metal stents have been greatly improved with precise laser metalwork through programming technology...
2017: PloS One
https://www.readbyqxmd.com/read/28741841/pulmonary-valve-opening-with-two-rotary-left-ventricular-assist-devices-for-biventricular-support
#17
Eric L Wu, Frank Nestler, Matthias Kleinheyer, Michael C Stevens, Jo P Pauls, John F Fraser, Shaun D Gregory
Right ventricular failure is a common complication associated with rotary left ventricular assist device (LVAD) support. Currently, there is no clinically approved long-term rotary right ventricular assist device (RVAD). Instead, clinicians have implanted a second rotary LVAD as RVAD in biventricular support. To prevent pulmonary hypertension, the RVAD must be operated by either reducing pump speed or banding the outflow graft. These modes differ in hydraulic performance, which may affect the pulmonary valve opening (PVO) and subsequently cause fusion, valvular insufficiency, and thrombus formation...
July 25, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28740966/portal-vein-thrombosis-as-a-rare-cause-of-abdominal-pain-when-to-consider
#18
Cengiz Tavusbay, Erdinç Kamer, Turan Acar, İbrahim Kokulu, Haldun Kar, Özlem Gür
Extrahepatic portal vein thrombosis (PVT) is a rare condition that is characterized by the presence of thrombus within any segment of the portal vein, including the right and left intrahepatic branches. It may also extend to the splenic or superior mesenteric veins. Portal vein thrombosis may be related to cirrhosis or liver malignancy as well as to local inflammatory conditions in the abdomen and genetic or acquired thrombophilic diseases. Currently, PVT is being increasingly diagnosed due to advances in modern imaging techniques...
2017: Turk J Surg
https://www.readbyqxmd.com/read/28739621/lipoma-of-superior-vena-cava-a-rare-occurrence
#19
Ahsan Wahab, Siddique Chaudhary, Ahmad Munir, Susan Jane Smith
Most benign primary cardiac tumours are myxomas; non-myxomatous tumours are less common but comprise a wide variety. Cardiac lipoma is a rare non-myxomatous variety. A 70-year-old Caucasian woman with right breast cancer status postpartial mastectomy underwent surveillance MRI of the breast and was found to have a possible right atrial (RA) mass. She also reported frequent headaches and palpitations. She underwent a transoesophageal echocardiogram which showed a 2.6×1.6×1.6 cm echogenic mass at the superior vena cava (SVC) and RA junction...
July 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28739563/efficacy-of-new-low-dose-oral-anticoagulants-in-recalcitrant-livedoid-vasculopathy
#20
Fumina Furukawa, Megumi Mizawa, Teruhiko Makino, Tadamichi Shimizu
Livedoid vasculopathy (LV) is a thrombotic skin disease characterised by recurrent painful ulcerations and irreversible scar formation on the lower legs, which is caused by occlusion of the cutaneous microcirculation. Edoxaban is one of new oral anticoagulants. It directly inhibits factor Xa in the coagulation pathway and prevents thrombus formation. A 17-year-old Japanese male presented with a 1-year history of recalcitrant cutaneous ulcers and livedo racemosa on his lower extremities. Initially, the ulcers were treated with antiplatelets therapies; however, he experienced recurrence of ulcerations during summer time...
July 24, 2017: BMJ Case Reports
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