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Powerful Clot-Busting Drugs Not Useful For DVT

Deep vein thrombosis (DVT) - the development of a clot in the lower legs - can prove deadly, since the clot can travel to the heart and lungs
Source: WebMD Health - Category: Consumer Health News Source Type: news

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A major challenge in developing blood-contacting medical devices is mitigating thrombogenicity of an intravascular device. Thrombi may interfere with device function or embolize from the device to occlude distant vascular beds with catastrophic consequences. Chemical interactions between plasma proteins and bioengineered surface occur at the nanometer scale; however, continuum models of blood predict local shear stresses that lead to platelet activation or aggregation and thrombosis. Here, an iterative approach to blood flow path design incorporating in silico, in vitro, and in vivo experiments predicted the occurrence and...
Source: ASAIO Journal - Category: Medical Devices Tags: Biomedical Engineering Source Type: research
This study proposes an innovative design of a tissue-engineered vascular graft for hemodialysis access that, besides its structural characteristics similar to those of current synthetic grafts, could enhance biological performance because of its composition.
Source: ASAIO Journal - Category: Medical Devices Tags: Tissue Engineering/Biomaterials Source Type: research
We report our early experience with four pediatric patients who developed pump thrombosis on a CF-VAD. Our limited experience suggests that the treatment of pediatric VAD thrombosis can be approached with similar principles to the adult population. Our current strategy includes: i. Initiating treatment with bivalirudin for an isolated rise in lactate dehydrogenase (LDH) with no corresponding rapid rise in plasma-free hemoglobin which may prevent further progression. ii. Treatment with a low-dose systemic tissue plasminogen activator (TPA) protocol as opposed to targeted therapy via catheter intervention if bivalirudin fa...
Source: ASAIO Journal - Category: Medical Devices Tags: Case Reports Source Type: research
Authors: Ihn YK, Shin SH, Baik SK, Choi IS Abstract Endovascular coiling for intracranial aneurysms has become an accepted treatment with good clinical results and provides adequate protection against rebleeding and rupture of aneurysms. However, despite the experience, preparation, or skill of the physician, complications during endovascular treatment still occur. The main complications of endovascular coiling are: procedural aneurysmal perforations by the microcatheter, micro-guidewire, or coil, and thromboembolic events. Such situations are unexpected, complex, and can have devastating consequences. In this arti...
Source: Interventional Neuroradiology - Category: Radiology Tags: Interv Neuroradiol Source Type: research
Abstract Integrins are bidirectional transmembrane receptors that play central roles in hemostasis and arterial thrombosis. They have been subject to structural studies for many years, in particular using X-ray crystallography, nuclear magnetic resonance spectroscopy, and two-dimensional negative stain electron microscopy. Despite considerable progress, a full consensus on the molecular mechanism of integrin activation is still lacking. Three-dimensional reconstructions of full-length human platelet integrin αIIbβ3 in lipid-bilayer nanodiscs obtained by electron cryo-microscopy and single-particle recon...
Source: Sub-Cellular Biochemistry - Category: Biochemistry Authors: Tags: Subcell Biochem Source Type: research
Authors: Chen C, Wang Q, Li X, Lu Z, He J, Fang Q, Ke X, Duan C, Li T Abstract [This corrects the article DOI: 10.3892/etm.2017.5043.]. PMID: 29469902 [PubMed - in process]
Source: Experimental and Therapeutic Medicine - Category: General Medicine Tags: Exp Ther Med Source Type: research
Authors: Liu H, Liu Y, Li Y, Liu Z, Li L, Ding S, Wang Y, Zhang T, Li L, Shao Z, Fu R Abstract Proteinase 3 (PR3) is released from neutrophils and regulates platelet activity, which is associated with cluster of differentiation (CD)177 antigen (NB1), a glycosylphosphatidylinositol-linked protein. In the present study, the effect of PR3 on thrombosis in paroxysmal nocturnal hemoglobinuria (PNH) and PNH-aplastic anemia (AA) syndrome was explored. The expression of PR3 and NB1 on CD59- neutrophils was detected by flow cytometry, immunofluorescence (IF), reverse transcription-quantitative polymerase chain reaction anal...
Source: Experimental and Therapeutic Medicine - Category: General Medicine Tags: Exp Ther Med Source Type: research
We describe the technique and interpretation of commercially available VET and assess the application of VET in both transplant and non-transplant cirrhosis populations. VET largely correlates well with traditional testing including platelet count and fibrinogen level, however, is potentially less accurate in patients with low fibrinogen levels. VET may be useful in identifying patients at higher risk of hypercoagulable complications post-transplant and reflects changes in hemostasis in decompensated patients. While VET has been associated with decreased transfusión support in multiple studies, the lack of bleeding ...
Source: Annals of Hepatology - Category: Gastroenterology Tags: Ann Hepatol Source Type: research
No abstract available
Source: RETINA - Category: Opthalmology Tags: Photo Essay Source Type: research
Conclusions: Pulmonary embolism was recognized as the etiology of multiple adolescent cardiac arrests in this single-center series and may be more common than previously reported. Recognition, high-quality cardiopulmonary resuscitation, and treatment with thrombolytic therapy resulted in survival in four of five patients.
Source: Critical Care Medicine - Category: Emergency Medicine Tags: Online Clinical Investigations Source Type: research
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