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https://www.readbyqxmd.com/read/27914131/the-role-of-pharmacomechanical-endovascular-intervention-for-iliofemoral-vein-thrombosis-compared-to-conventional-anticoagulation-therapy
#1
In Sub Kim, Won Min Jo
Although anticoagulation therapy is the primary treatment for deep vein thrombosis (DVT), it has not been associated with the rapid recanalization of the venous occlusion. Moreover, it is associated with long-term disability due to post-thrombotic syndrome (PTS). In contrast, pharmacomechanical endovascular intervention (PMI) results in more rapid clinical improvement in DVT patients, but there are few reports on its long-term outcomes. This retrospective study evaluated the clinical effectiveness of PMI compared to conventional anticoagulation therapy (ACA) for acute and subacute iliofemoral DVT...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27908894/contraction-of-blood-clots-is-impaired-in-acute-ischemic-stroke
#2
Valerie Tutwiler, Alina D Peshkova, Izabella A Andrianova, Dina R Khasanova, John W Weisel, Rustem I Litvinov
OBJECTIVE: Obstructive thrombi or thrombotic emboli are the pathogenic basis of ischemic stroke. In vitro blood clots and in vivo thrombi can undergo platelet-driven contraction (retraction), resulting in volume shrinkage. Clot contraction can potentially reduce vessel occlusion and improve blood flow past emboli or thrombi. The aim of this work was to examine a potential pathogenic role of clot contraction in ischemic stroke. APPROACH AND RESULTS: We used a novel automated method that enabled us to quantify time of initiation and extent and rate of clot contraction in vitro...
December 1, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/27907814/platelet-function-one-and-three-months-after-coronary-bypass-surgery-in-relation-to-once-or-twice-daily-dosing-of-acetylsalicylic-acid
#3
Torbjörn Ivert, Magnus Dalén, Charlotte Ander, Ragnhild Stålesen, Per Näsman, Marie Lordkipanidzé, Paul Hjemdahl
INTRODUCTION: Current guidelines recommend acetylsalicylic acid (ASA) treatment after coronary artery bypass grafting (CABG) to reduce thrombotic vein graft occlusion. The optimal dosage of ASA is not known. MATERIALS AND METHODS: Forty-two patients undergoing elective CABG were randomized to receive either ASA 75mg or 160mg once daily (OD) or 75mg twice daily (BID) after the operation. Platelet function testing was performed before, and one and three months after the operation...
November 21, 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27904545/treatment-of-recurrent-prosthetic-mitral-valve-thrombosis-with-reteplase-a-report-of-four-cases
#4
Neda Behzadnia, Babak Sharif Kashani, Arda Kiani, Atefe Abedini, Seyed Reza Seyedi, Hossein Zargham Ahmadi, Farah Naghash Zadeh, Atefeh Fakharian
Thrombosis is a life threatening complications of prosthetic mitral valves and is associated with high morbidity and mortality. Even in presence of systemic anticoagulation prosthetic valve thrombosis has an incidence of 0.5% to 8%. Recurrent prosthetic valve thrombosis and the resulting thrombotic occlusion require re-establishment of blood flow across the valve. While surgical repair is considered the classic first line treatment option for prosthetic valve thrombosis, intravenous thrombolysis has emerged as an acceptable alternative for the first episode of prosthetic valve thrombosis...
2016: Tanaffos
https://www.readbyqxmd.com/read/27899178/choice-of-a-hemodynamic-model-for-occlusive-thrombosis-in-arteries
#5
David N Ku, Lauren D C Casa, Susan M Hastings
Intravascular thrombosis can lead to heart attacks and strokes that together are the leading causes of death in the US (Kochanek, K.D., Murphy, S.L., Xu, J.Q., 2014). The ability to identify the offending biofluid mechanical conditions and predict the timescale of thrombotic occlusion in vessels and devices may improve patient outcomes. A computational model was developed to describe the growth of thrombus based on the local hemodynamic shear rate. The model predicts thrombus deposition based on initial geometric and fluid mechanical conditions, which are updated throughout the simulation to reflect the changing lumen dimensions...
November 12, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27879470/incidence-and-management-of-thrombotic-and-thromboembolic-complications-following-the-norwood-procedure-a-systematic-review
#6
Arnav Agarwal, Mohammed Firdouse, Nishaan Brar, Andy Yang, Panos Lambiris, Anthony K Chan, Tapas K Mondal
BACKGROUND: The stage 1 Norwood procedure and its variants represent the first step of palliation for hypoplastic left heart syndrome. Although appropriate postoperative thromboprophylaxis is integral, significant variance remains across institutional practices. The purpose of this systematic review is to estimate the incidence of thrombosis and thromboembolism following the Norwood or modified Blalock-Taussig shunt procedure and examine current thromboprophylaxis regimens. METHODS: Ovid MEDLINE and Embase were searched from January 2000 to June 2016 for primary studies explicitly reporting incidence of thrombosis, thromboembolism (strokes and pulmonary embolisms), or shunt occlusion in neonates, infants, and children undergoing the Norwood procedure or any variant...
November 21, 2016: Clinical and Applied Thrombosis/hemostasis
https://www.readbyqxmd.com/read/27874892/idiopathic-livedo-racemosa-presenting-with-splenomegaly-and-diffuse-lymphadenopathy
#7
Laura Bukavina, Joshua Weaver, Teri Nagy, Robert T Brodell, Eliot N Mostow
Sneddon syndrome (SS) is a rare condition and the diagnosis is made only when other more common disease entities have been excluded. Common manifestations in SS patients include hypertension, coronary artery disease, venous thrombosis, miscarriages, psychiatric disturbances, and arterial and venous thrombotic events. Most patients present in their early 30s with classic neurovascular and dermatologic signs. Currently, the main criteria for the diagnosis of SS include livedo racemosa, focal neurological deficits or evidence of stroke on magnetic resonance imaging, or characteristic vascular alterations seen on biopsy...
October 2016: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/27850907/1271-standardization-of-central-line-maintenance-demonstrates-a-reduction-in-thrombotic-occlusion-tpa-use
#8
Samantha Wittman, Donna Conner, Victoria Dominguez, Julia Ruiz
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27847619/central-retinal-vein-occlusion-concomitant-with-dengue-fever
#9
Punithamalar Velaitham, Nandini Vijayasingham
BACKGROUND: Dengue virus infection is on the rise and there is increasing number of ocular complications that are being reported. Most common ocular complications are macular edema, macular hemorrhages, and foveolitis. There are case reports on branch retinal vessel occlusions. Most of the ocular complications are attributed to the bleeding tendency and transudative process in dengue viral infection. This is a case report of ischemic central retinal vein occlusion (CRVO) concomitant with dengue fever...
2016: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/27843802/coronary-ectasia-in-a-man-on-breast-cancer-therapy-presenting-with-acute-coronary-syndrome
#10
Dana C Johnson, Luay Rifai, Parag V Patel
Limited data exist on the association between breast cancer treatments and coronary artery disease anatomy, particularly in males. We describe an unusual case of diffuse coronary ectasia in a man with breast cancer presenting with acute coronary syndrome (ACS). A 66-year-old man with breast cancer on paclitaxel, tamoxifen, and carboplatin chemotherapy regimen, presents with new onset chest pain. Electrocardiogram reveals anterolateral ST-segment depressions and elevated troponin I level. Emergent angiography revealed grossly ectatic coronary arteries with a total thrombotic occlusion of the mid right coronary artery...
October 2016: Avicenna Journal of Medicine
https://www.readbyqxmd.com/read/27833295/successful-penile-reconstruction-following-prior-arteriovenous-loop-thrombosis-due-to-undiagnosed-protein-s-deficiency-and-exogenous-testosterone
#11
Parameswaran Anoop, Vithal Malmande, M N Prakash Kumar, Naveen Rao
Flap failure from microvascular thrombotic occlusion is a rare but significant cause for unsuccessful reconstructive surgery. We encountered thrombosis of arteriovenous loop in a patient undergoing phallus reconstruction. Further investigations revealed underlying previously asymptomatic hypercoagulable state due to protein-S deficiency in addition to long-term exogenous testosterone administration. Role of thrombophilia testing, thrombogenic potential of testosterone and the need for therapeutic perioperative anti-coagulation in such situations are described here...
May 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/27830895/thrombolysis-for-acute-deep-vein-thrombosis
#12
REVIEW
Lorna Watson, Cathryn Broderick, Matthew P Armon
BACKGROUND: Standard treatment for deep vein thrombosis aims to reduce immediate complications. Use of thrombolysis or clot dissolving drugs could reduce the long-term complications of post-thrombotic syndrome (PTS) including pain, swelling, skin discolouration, or venous ulceration in the affected leg. This is the third update of a review first published in 2004. OBJECTIVES: To assess the effects of thrombolytic therapy and anticoagulation compared to anticoagulation alone for the management of people with acute deep vein thrombosis (DVT) of the lower limb as determined by the effects on pulmonary embolism, recurrent venous thromboembolism, major bleeding, post-thrombotic complications, venous patency and venous function...
November 10, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27823643/an-overview-of-hematopoietic-stem-cell-transplantation-related-thrombotic-complications
#13
REVIEW
Ugur Sahin, Pinar Ataca Atilla, Erden Atilla, Selami Kocak Toprak, Taner Demirer
Thrombotic episodes are far less common than bleeding complications after hematopoietic stem cell transplantation (HSCT). However, they lead to significant morbidity and mortality. These complications are classified into four groups, including venous thromboembolic events (VTE), catheter-induced thrombosis (CIT), transplant-associated thrombotic microangiopathy (TA-TMA) and sinusoidal obstruction syndrome (SOS) or veno-occlusive disease (VOD). The frequency of VTE is increased among patients undergoing HSCT due to some acquired conditions including underlying malignancy, infections, administration of myeloablative conditioning regimens and/or total body irradiation, prolonged hospitalizations leading to immobility and presence of central venous catheters...
November 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27819307/hyperglycaemia-induced-reciprocal-changes-in-mir-30c-and-pai-1-expression-in-platelets
#14
Mao Luo, Rong Li, Meiping Ren, Ni Chen, Xin Deng, Xiaoyong Tan, Yongjie Li, Min Zeng, Yan Yang, Qin Wan, Jianbo Wu
Type 2 diabetic mellitus (DM2) is associated with accelerated thrombotic complications and is characterized by high levels of plasminogen activator inhibitor-1 (PAI-1). Recent studies show that human platelets have high levels of miR-30c and synthesize considerable active PAI-1. The underlying mechanism of how PAI-1 expression is upregulated in DM2 is poorly understood. We now report that hyperglycaemia-induced repression of miR-30c increases PAI-1 expression and thrombus formation in DM2. Bioinformatic analysis and identification of miRNA targets were assessed using luciferase assays, quantitative real-time PCR and western blots in vitro and in vivo...
November 7, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27803506/role-of-novel-oral-anticoagulants-in-the-treatment-of-antiphospholipid-syndrome
#15
C Whitney White, Angela R Thomason, Katie Boyd
Background: Antiphospholipid syndrome (APS) is an autoimmune disease characterized by thrombosis or pregnancy loss with persistent positive antibodies. Standard treatment for APS with history of thromboembolism is heparin or low-molecular-weight heparin followed by a vitamin K antagonist (VKA). Novel oral anticoagulants (NOACs) could be effective in patients with APS, but none carry indications for treatment related to APS. Clinical Evidence: Five case reports or series with rivaroxaban and dabigatran suggest thrombotic events occur most often in the higher risk population (arterial thrombosis and/or triple positive antibodies) or in patients who had recurrent VTEs on warfarin therapy...
October 2016: Hospital Pharmacy
https://www.readbyqxmd.com/read/27798439/colonic-ischemia-usual-and-unusual-presentations-and-their-management
#16
Ayah Oglat, Eamonn M M Quigley
PURPOSE OF REVIEW: To provide an update on the epidemiology, pathophysiology, clinical presentation, and management of colonic ischemia. RECENT FINDINGS: Formerly regarded as a rare cause of lower gastrointestinal hemorrhage, colonic ischemia is now recognized to be the most common manifestation of intestinal vascular compromise. In contrast to ischemic events in the small intestine wherein thrombotic and embolic events predominate, colonic ischemia typically results from a global reduction in blood flow to the colon and no occlusive lesion(s) are evident...
October 27, 2016: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/27792437/preventing-intraluminal-occlusion-in-peripherally-inserted-central-catheters
#17
Jan Hitchcock
Peripherally inserted central catheters (PICCs) are used in a variety of specialties. Infective and thrombotic complications are widely reported but little has been written about the complications of persistent withdrawal occlusion (PWO) or complete luminal occlusion in PICCs. An audit was conducted of all patients who had a PICC in situ for a 6-week period, using a combination of reviewing clinical documentation and local departmental databases, physical review of inpatients and discussion with the relevant clinical nurse specialists in haematology, oncology, outpatient antibiotic therapy and the vascular access team, to determine the degree of PWO or occlusion but also to review possible financial implications in the introduction of a more expensive product...
October 27, 2016: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/27789765/the-predictive-value-of-haemodynamic-parameters-for-outcome-of-deep-venous-reconstructions-in-patients-with-chronic-deep-vein-obstruction-a-systematic-review
#18
Rlm Kurstjens, Maf de Wolf, J Kleijnen, R de Graaf, Cha Wittens
OBJECTIVE: The aim of this study was to investigate the predictive value of haemodynamic parameters on success of stenting or bypass surgery in patients with non-thrombotic or post-thrombotic deep venous obstruction. METHODS: EMBASE, MEDLINE and trial registries were searched up to 5 February 2016. Studies needed to investigate stenting or bypass surgery in patients with post-thrombotic obstruction or stenting for non-thrombotic iliac vein compression. Haemodynamic data needed to be available with prognostic analysis for success of treatment...
October 27, 2016: Phlebology
https://www.readbyqxmd.com/read/27774697/livedoid-vasculopathy-and-popliteal-artery-occlusion-in-a-patient-with-protein-s-deficiency
#19
Takayuki Nakayama, Kentaro Mizutani, Ichiro Hanamura, Hidefumi Kato, Akiyoshi Takami, Kyosuke Takeshita, Daisuke Watanabe
Livedoid vasculopathy (LV) is a chronic disease with recurrent reticularis and ulcers, mainly affecting the feet and lower legs. The pathogenesis of LV has not been yet thoroughly understood, but thrombosis is thought to play a major role because fibrin deposition within both the wall and lumen of affected vessels is pathologically detected. A 68-year-old woman first presented to our hospital in 2004 with a 6-year history of a reticular rash and ulceration on the lower legs. Screening tests for vasculitis and collagen disease were mostly normal, leading to diagnosis of LV...
October 24, 2016: Journal of Dermatology
https://www.readbyqxmd.com/read/27766055/platelets-and-platelet-adhesion-molecules-novel-mechanisms-of-thrombosis-and-anti-thrombotic-therapies
#20
REVIEW
Xiaohong Ruby Xu, Naadiya Carrim, Miguel Antonio Dias Neves, Thomas McKeown, Tyler W Stratton, Rodrigo Matos Pinto Coelho, Xi Lei, Pingguo Chen, Jianhua Xu, Xiangrong Dai, Benjamin Xiaoyi Li, Heyu Ni
Platelets are central mediators of thrombosis and hemostasis. At the site of vascular injury, platelet accumulation (i.e. adhesion and aggregation) constitutes the first wave of hemostasis. Blood coagulation, initiated by the coagulation cascades, is the second wave of thrombin generation and enhance phosphatidylserine exposure, can markedly potentiate cell-based thrombin generation and enhance blood coagulation. Recently, deposition of plasma fibronectin and other proteins onto the injured vessel wall has been identified as a new "protein wave of hemostasis" that occurs prior to platelet accumulation (i...
2016: Thrombosis Journal
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