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thrombotic occlusion

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https://www.readbyqxmd.com/read/28627575/label-free-detection-of-aggregated-platelets-in-blood-by-machine-learning-aided-optofluidic-time-stretch-microscopy
#1
Yiyue Jiang, Cheng Lei, Atsushi Yasumoto, Hirofumi Kobayashi, Yuri Aisaka, Takuro Ito, Baoshan Guo, Nao Nitta, Natsumaro Kutsuna, Yasuyuki Ozeki, Atsuhiro Nakagawa, Yutaka Yatomi, Keisuke Goda
According to WHO, about 10 million new cases of thrombotic disorders are diagnosed worldwide every year. Thrombotic disorders, including atherothrombosis (the leading cause of death in the US and Europe), are induced by occlusion of blood vessels, due to the formation of blood clots in which aggregated platelets play an important role. The presence of aggregated platelets in blood may be related to atherothrombosis (especially acute myocardial infarction) and is, hence, useful as a potential biomarker for the disease...
June 19, 2017: Lab on a Chip
https://www.readbyqxmd.com/read/28624155/current-understanding-of-the-pathophysiology-of-chronic-thromboembolic-pulmonary-hypertension
#2
Smriti Sharma, Irene M Lang
Chronic thromboembolic pulmonary hypertension (CTEPH) is a unique form of pulmonary hypertension arising from fibrotic obliteration of major pulmonary arteries. Pro-thrombotic states, large clot burden and impaired dissolution are believed to contribute to the occurrence and progression of thrombosis after an acute pulmonary embolic event. Recent data utilizing several models have facilitated the understanding of clot resolution. This review summarizes current knowledge on pathophysiological mechanisms of major vessel occlusion in CTEPH...
June 12, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28603574/central-retinal-vein-occlusion-in-younger-swedish-adults-case-reports-and-review-of-the-literature
#3
Elisabeth Wittström
PURPOSE: To investigate associated systemic diseases, other conditions, visual outcome, ocular complications and treatment in Swedish patients younger than 50 years with central retinal vein occlusion (CRVO) and reviewing the literature. METHODS: Twenty-two patients with CRVO, younger than 50 years, were examined with full-field electroretinography (ERG) within 3 months after a thrombotic event, or were periodically examined and were observed for at least 6 months...
2017: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/28596657/increased-level-of-factor-viii-and-physiological-inhibitors-of-coagulation-in-patients-with-sickle-cell-disease
#4
Mohamed Chekkal, Mohamed Chakib Arslane Rahal, Khedidja Moulasserdoun, Fatima Seghier
Sickle cell disease (SCD) is a hemoglobinopathy characterized by hemolysis, oxidative stress, and vaso-occlusive crises. Thromboembolism also remains a serious complication and probably underestimated in the SCD. Our objective was to seek the existence of hemostasis abnormalities that predispose to thrombosis such as elevation of FVIII and Physiological inhibitors of coagulation deficiency. We studied 81 patients with SCD, including 32 homozygous S/S, 20 double heterozygous S/β thalassemia and 29 heterozygous S/A...
June 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28595505/wound-complications-after-common-femoral-vein-endophlebectomy-influence-on-outcome
#5
Alexander Gombert, Mohammad E Barbati, Jochen Grommes, Ralph Lm Kurstjens, Mark Af deWolf, Cees Ha Wittens, Houman Jalaie
Introduction Venous recanalization of obstructed femoral and iliac veins is associated with good results regarding the feasibility and patency rate. If the common femoral vein with its inflow vessels is involved, open surgical desobliteration or endophlebectomy has been described as a crucial part of the intervention. However, when performing the hybrid procedure, a number of specific complications have been described. We present our results after venous recanalization including an endophlebectomy, focussing on wound complications and its impact on outcome...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28592769/thrombotic-complications-after-hematopoietic-stem-cell-transplantation
#6
Shosaku Nomura
Hematopoietic stem cell transplantation (HSCT) involves some serious transplant-associated complications (TACs) or vascular disorders, such as veno-occlusive disease (VOD), thrombotic microangiopathy (TMA), and graft-versus-host disease (GVHD). VOD is related to a clinical syndrome characterized by tender hepatomegaly, jaundice, fluid retention, and unexplained weight gain. When TMA is described in patients who have undergone HSCT, it is often implied that the clinical diagnosis of TMA is similar to that of thrombotic thrombocytopenic purpura...
2017: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/28580767/drug-coated-balloon-long-term-outcome-from-a-real-world-three-center-experience
#7
Carlo Zivelonghi, Matteo Ghione, Giovanni Benfari, Magdalena Cuman, Alfredo Fede, Mattia Lunardi, Stefano Cordone, Marco Botta, Andrea Pacchioni, Pietro Bellone, Bernhard Reimers, Flavio L Ribichini
OBJECTIVES: In-stent restenosis (ISR) and diffuse small vessel disease still represent challenging subsets for percutaneous coronary interventions, also in the new-generation DES era. We aim at reporting on the long-term clinical outcome of drug-coated balloons (DCB) in all-comers population. METHODS: Consecutive patients treated with DCB between January 2011 and December 2014 were retrospectively studied in three centers of northern Italy. The measured end-points were cardiac death, myocardial infarction (MI), target lesion revascularization (TLR), and major adverse cardiac events (MACE) defined as combination of cardiac death, MI, and TLR...
June 5, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28549710/complication-rates-observed-in-silicone-and-polyurethane-catheters-of-totally-implanted-central-venous-access-devices-implanted-in-the-upper-arm
#8
Jasmin D Busch, Maren Vens, Catherine Mahler, Jochen Herrmann, Gerhard Adam, Harald Ittrich
PURPOSE: To present frequency and types of complications related to silicone (SI) versus polyurethane (PUR) catheters of totally implanted venous access devices (TIVADs) placed in the upper arm. MATERIAL AND METHODS: A cohort of 2,491 consecutive patients with TIVADs implanted between 2006 and 2015 was retrospectively analyzed. Complications were classified according to SIR guidelines. Pearson χ(2) test was used for categorical variables, and Student t test was used for continuous variables...
May 24, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28548215/protein-z-and-endothelin-1-genetic-polymorphisms-in-pediatric-egyptian-sickle-cell-disease-patients
#9
Mervat M Khorshied, Nohair S Mohamed, Rania S Hamza, Rasha M Ali, Mona K El-Ghamrawy
BACKGROUND: Sickle cell disease (SCD) is a monogenic disease associated with multisystem morbidity. Vasculopathy caused by delicate imbalance between coagulation and endothelial systems plays a pivotal role in disease course. As Protein Z and Endothelin-1 genetic polymorphisms may increase the thrombotic risk, the aim of the current work was to verify the possible impact of Protein Z (PROZ G79A) and Endothelin-1 (EDN1 G5665T) polymorphisms on the clinic-laboratory features of the SCD in a cohort of Egyptian pediatric patients...
May 26, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28529915/hemolytic-uremic-syndrome-in-adults-a-case-report
#10
Fabiel Gerardo Pérez-Cruz, Patricia Villa-Díaz, María Consuelo Pintado-Delgado, María Loreto Fernández Rodríguez, Ana Blasco-Martínez, María Pérez-Fernández
Thrombotic microangiopathies (TMA) are microvascular occlusive disorders characterized by platelet aggregation and mechanical damage to erythrocytes, clinically characterized by microangiopatic haemolytic anemia, thrombocytopenia and organ injury. We are reporting a case of a woman patient with severe hemolytic uremic syndrome associated to infectious diarrhoea caused by Shiga toxin-producing pathogen, who were admitted to our intensive care unit. The patient described developed as organ injury, neurological failure and acute renal failure, with need of haemodialysis technique...
May 4, 2017: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28525971/left-ventricular-mural-thrombus-and-dual-coronary-embolization-associated-with-hyperthyroid-cardiomyopathy-and-atrial-fibrillation-a-case-report
#11
Guohui Liu, Ping Yang, Yuquan He
BACKGROUND: The majority of acute myocardial infarction (AMI) events are caused by thrombotic occlusion of the coronary artery, secondary to atherosclerotic plaque erosion or rupture. However, coronary embolism (CE), while rare, is being increasingly recognized as an important cause of AMI. We present the case of a patient with multi-site coronary artery embolization associated with hyperthyroid-related cardiomyopathy and atrial fibrillation. CASE PRESENTATION: A 49-year-old female with a history of hyperthyroidism and atrial fibrillation (AF) was admitted to our hospital presenting with right upper limb pain and swelling...
May 19, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28524121/-the-use-of-high-flow-extracranial-intracranial-artery-bypass-in-pathology-of-the-cerebral-and-brachiocephalic-arteries-technical-features-and-surgical-outcomes
#12
A V Dubovoy, K S Ovsyannikov, V E Guzhin, A V Cherepanov, D M Galaktionov, A M Perfil'ev, A O Sosnov
BACKGROUND: Poor outcomes of surgical treatment for complex cerebral aneurysms due to the development of cerebral ischemia were the cause to use cerebral revascularization surgery for this pathology. OBJECTIVE: the study objective was to master a high-flow extracranial-intracranial (EC-IC) artery bypass technique and evaluate its application in surgical treatment of complex and giant cerebral aneurysms as well as complex lesions of the brachiocephalic arteries. MATERIAL AND METHODS: Fifty two patients underwent high-flow IC-EC bypass surgery; of these, 34 patients had complex cerebral aneurysms, and 18 patients had complex stenotic occlusive lesions of the brachiocephalic arteries...
2017: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/28515570/association-between-hemodynamic-modifications-and-clinical-outcome-of-intracranial-aneurysms-treated-using-flow-diverters
#13
Nikhil Paliwal, Robert J Damiano, Jason M Davies, Adnan H Siddiqui, Hui Meng
Treatment of intracranial aneurysms (IAs) has been revolutionized by the advent of endovascular Flow Diverters (FDs), which disrupt blood flow within the aneurysm to induce pro-thrombotic conditions, and serves as a scaffold for endothelial ingrowth and arterial remodeling. Despite good clinical success of FDs, complications like incomplete occlusion and post-treatment rupture leading to subarachnoid hemorrhage have been reported. In silico computational fluid dynamic analysis of the pre- and post-treated geometries of IA patients can shed light on the contrasting blood hemodynamics associated with different clinical outcomes...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28512615/delayed-infarction-of-medullar-and-cerebellum-3-months-after-vertebral-artery-injury-with-c1-2-fracture-case-report
#14
Yunsuk Her, Suk Hyung Kang, Ilhom Abdullaev, Noah Kim
The clinical manifestations of vertebral artery (VA) injury (VAI) after cervical trauma range from asymptomatic to fatal cerebral infarction. Thrombotic occlusion and embolization to the distal arteries can cause cerebellar and brain stem infarction within days after trauma. We report a 64-year-old man who underwent arthrodesis surgery for C1 and C2 fractures. He had left VAI at the C2 transverse foramen site but was asymptomatic. The patient experiences brainstem and cerebellar infarction 3 months after injury to the VA, and we are here to discuss the treatment of VAI after cervical trauma...
April 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/28490684/-cerebral-venous-sinus-thrombosis-following-cisplatin-based-chemotherapy-for-testicular-tumor
#15
Manabu Ishihara, Koichi Satoh, Mami Hanaoka, Kazuhito Matsuzaki, Taku Matsuda, Hajimu Miyake, Hitoshi Niki
A man in his 30s who presented with an enlarged right testicle was diagnosed with a germ cell tumor via orchiectomy. Adjuvant chemotherapy with cisplatin, etoposide and bleomycin(BEP)was initiated. He developed a headache 8 days later, followed by neurological deficits 10 days later. Magnetic resonance imaging(MRI)and magnetic resonance venography(MRV)showed thrombotic occlusion at the superior sagittal sinus. Anticoagulant therapy with heparin was initiated. However, a generalized epileptic seizure occurred 11 days later, and an antiepileptic drug therapy was initiated...
May 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28487554/improved-thrombolytic-effect-with-focused-ultrasound-and-neuroprotective-agent-against-acute-carotid-artery-thrombosis-in-rat
#16
Tsong-Hai Lee, Jih-Chao Yeh, Chih-Hung Tsai, Jen-Tsung Yang, Shyh-Liang Lou, Chen-June Seak, Chao-Yung Wang, Kuo-Chen Wei, Hao-Li Liu
Combination therapy with focused ultrasound (FUS) and a neuroprotective agent, BNG-1, was examined in an acute carotid thrombotic occlusion model using LED irradiation in rat to improve the thrombolytic effect of rt-PA. Seven treatment groups included (A) intravenous bolus injection of 0.45 mg/kg rt-PA, (B) intravenous bolus injection of 0.9 mg/kg, (C) sonothrombolysis with FUS alone, (D) oral administration of 2 g/kg BNG-1 for 7 days alone, (E) A + D, (F) A + C, and (G) A + C + D. Four comparison groups were made including (H) 0...
May 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28487393/potent-thrombolytic-effect-of-n-acetylcysteine-on-arterial-thrombi
#17
Sara Martinez de Lizarrondo, Clément Gakuba, Bradley A Herbig, Yohann Repessé, Carine Ali, Cécile V Denis, Peter Lenting, Emmanuel Touzé, Scott L Diamond, Denis Vivien, Maxime Gauberti
Background -Platelet crosslinking during arterial thrombosis involves von Willebrand Factor (VWF) multimers. Therefore, proteolysis of VWF appears promising to disaggregate platelet-rich thrombi and restore vessel patency in acute thrombotic disorders such as ischemic stroke, acute coronary syndrome or acute limb ischemia. N-Acetylcysteine (NAC, a clinically approved mucolytic drug) can reduce intrachain disulfide bonds in large polymeric proteins. In the present study, we postulated that NAC might cleave the VWF multimers inside occlusive thrombi, thereby leading to their dissolution and arterial recanalization...
May 9, 2017: Circulation
https://www.readbyqxmd.com/read/28483615/severe-mesenteric-ischemia-in-a-pregnant-woman-with-antiphospholipid-syndrome
#18
Andrea Padricelli, Anna Maria Giribono, Doriana Ferrara, Flavia Spalla, Umberto Bracale, Luca Del Guercio, Giuseppe Servillo, Carlo Ruotolo, Umberto Marcello Bracale
The antiphospholipid syndrome (APS), either primary or secondary form, is considered an autoimmune disease with presence of at least one clinical and one laboratory abnormalities as defined by The Sydney criteria. Clinical criteria include vascular thrombosis of venous, artery, small vessel in any organ and recurrent pregnancy pathologies. Mesenteric ischemia is a rare and threatening manifestation of APS. We herein report a case of 34-years old pregnant woman referred to our Emergency Room with thoracic and abdominal acute pain...
May 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28467568/-leriche-syndrome
#19
Serdar Demirgan, Abdullah Tolga Şitilci, Sezen Solak, Mehmet Salih Sevdi, Kerem Erkalp, Emin Köse
Leriche syndrome is a disease characterized by thrombotic occlusion in the aorta, frequently in the distal renal artery. Classic symptoms of this syndrome include pain in the lower extremities emerging during activity (claudication), impalpability of femoral pulses, and impotency in male patients. Definitive diagnosis of claudication due to insufficient circulation as well as claudication that is neurogenic in origin, is difficult. Medical history, physical examination, and monitoring methods are important for definitive diagnosis...
January 2017: Aǧrı: Ağrı (Algoloji) Derneği'nin Yayın Organıdır, the Journal of the Turkish Society of Algology
https://www.readbyqxmd.com/read/28462645/spontaneous-central-venous-thrombosis-and-shunt-occlusion-following-peritoneovenous-shunt-placement-for-intractable-ascites
#20
D Hariharan, E A Wilkes, G P Aithal, S J Travis, D N Lobo
A 43-year-old man had a peritoneovenous shunt inserted for the treatment of chylous ascites secondary to myelofibrosis. Despite being on anticoagulation for superior mesenteric vein thrombosis, he developed shunt dysfunction within two weeks of insertion. Superior venacavography showed multiple filling defects in the right axillary vein, no filling of the right brachiocephalic and right subclavian vein, and thrombotic occlusion of the internal jugular veins bilaterally. The shunt was removed 11 days after insertion, and there was extensive thrombosis of the venous end of the shunt and the compressible pump chamber...
May 2017: Annals of the Royal College of Surgeons of England
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