Read by QxMD icon Read

Clot stop

Ng Zhang Jin, Subash C B Gopinath
Hemostasis initiates a wound healing process and stops bleeding of blood within a damaged tissue, an important process in human and animal systems. However, this process needs to revert temporarily during surgery and analyze the clotting mechanism. In the past decade, heparin has been used widely as an anticoagulant in surgery to prevent unwanted blood clotting as it is not expensive, not difficult to control, lack of suitable replacement as well as less harmful to the human. However, heparin has several disadvantages, which include thrombocytopenia and non-specific plasma binding...
September 23, 2016: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
Yoon Sang Chung, Dai Yun Cho, Dong Suep Sohn, Wang Soo Lee, Hoyoun Won, Dong Hoon Lee, Hyun Kang, Joonhwa Hong
Anticoagulation treatment during extracorporeal membrane oxygenation (ECMO) treatment is unavoidable. However, discontinuation of heparin infusion is necessary when challenges associated with the use of heparin, such as bleeding and thrombocytopenia, are encountered. The medical records of 94 adult (age ≥ 18 years) patients treated with ECMO from January 2011 to March 2015, at Chung-Ang University Hospital, Seoul, Korea, were reviewed. Among the 94 patients, 55 patients underwent ECMO treatment for 3 or more days...
September 20, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
M Durila, J Schützner, T Vymazal
UNLABELLED: Warfarin overdose with unmeasurable values of the prothrombin time (PT-INR) is a significant problem in the preoperative preparation of the patient for acute invasive surgery. In contrast to conventional blood clotting assays, rotational thromboelastometry (ROTEM) evaluates the coagulation profile of the whole blood and provides a more complex view of the coagulation status of the patient. Thromboelastometry results are available within about 10 minutes and help us to provide targeted "bedside" therapy of coagulopathy in a bleeding patient...
2016: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
Benito Chiofalo, Antonio Simone Laganà, Giovanna Imbesi, Salvatore Giovanni Vitale, Ursula Catena, Federica Campolo, Gabriele Lanzo, Gabriele Centini, Onofrio Triolo
Secondary headache is one of the most common side effect during oral contraceptive (OC) treatment and it leads many patients to stop the therapy. Patent foramen ovale (PFO) is an interatrial communication that spontaneously closes at birth in about 75% of the population. However, in the rest of adults PFO maintains a direct communication between the right and left side of circulation. In these patients PFO is a tunnel-like structure that could allow a blood clot to pass from the right to the left side of circulation, thus can cause paradoxical embolization...
September 2016: Medical Hypotheses
Bartlomiej Kalaska, Kamil Kaminski, Joanna Miklosz, Shin-Ichi Yusa, Emilia Sokolowska, Agnieszka Blazejczyk, Joanna Wietrzyk, Irena Kasacka, Krzysztof Szczubialka, Dariusz Pawlak, Maria Nowakowska, Andrzej Mogielnicki
The parenteral anticoagulants may cause uncontrolled and life-threatening bleeding. Protamine, the only registered heparin antidote, is partially effective against low-molecular weight heparins, completely ineffective against fondaparinux and may cause unacceptable toxicity. Therefore, we aimed to develop a synthetic compound for safe and efficient neutralization of all parenteral anticoagulants. We synthesized pegylated PMAPTAC block copolymers, and then, we selected a lead heparin-binding copolymer (HBC)...
July 5, 2016: Translational Research: the Journal of Laboratory and Clinical Medicine
Yahiya Y Syed
Idarucizumab (Praxbind(®)), a humanized monoclonal antibody, is a specific reversal agent for the direct oral thrombin inhibitor dabigatran, available as its prodrug dabigatran etexilate (Pradaxa(®)). Idarucizumab is approved in several countries (including the USA, the EU, Canada and Australia) for use in adult patients on dabigatran when the reversal of its anticoagulant effects is required for emergency surgery/procedures or in the event of life-threatening or uncontrolled bleeding. In the ongoing pivotal RE-VERSE AD trial in these populations (n = 90), intravenous idarucizumab 5 g reversed dabigatran-induced prolongation of dilute thrombin time (dTT) and ecarin clotting time (ECT) within minutes...
August 2016: American Journal of Cardiovascular Drugs: Drugs, Devices, and Other Interventions
Kirsten Krueger, Axel Schmutz, Barbara Zieger, Johannes Kalbhenn
Extracorporeal lung support and therapeutic anticoagulation are dogmatically linked for most clinicians in fear of clotting of the extracorporeal circuit. In the last decade, however, we have learned that bleeding complications in the course of extracorporeal membrane oxygenation (ECMO) therapy are common and not occasionally limiting or fatal. Even though international guidelines lowered the PTT-target values, ECMO therapy without anticoagulation has only been reported sporadically in case reports heretofore...
June 3, 2016: Artificial Organs
Scott L Diamond
Hemostasis occurs in two different topological scenarios: complete severing of a vessel or disruption of the vessel wall. Either to meet the daily rigors of active life or during an acute trauma, hemostasis involves the regulated and self-limiting production of thrombin to stop bleeding. In contrast, arterial and venous thrombosis typically involves the unregulated, intraluminal growth of a clot, in the absence of bleeding. For either hemostasis or thrombosis, the presence of flow and pressure gradients (delta-P, ΔP) dictates when and where thrombin and fibrin are located and in what quantity...
May 2016: Thrombosis Research
Marc Maegele
The concept of remote damage control resuscitation (RDCR) is still in its infancy and there is significant work to be done to improve outcomes for patients with life-threatening bleeding secondary to injury. The prehospital phase of resuscitation is critical and if shock and coagulopathy can be rapidly minimized before hospital admission this will very likely reduce morbidity and mortality. The optimum transfusion strategy for these patients is still highly debated and the potential implications of the recently published pragmatic, randomize, optimal platelet, and plasma ratios trial (PROPPR) for RDCR have been reviewed...
April 2016: Transfusion
Kathryn Matney, Mary Berg, James M Falko, Nicole L Draper
In individuals with familial hypercholesterolemia (FH) who are unable to reach a target low-density lipoprotein level on a drug regimen, lipoprotein apheresis (LA) may be the treatment of choice. Severe reactions involving clotting during LA are not well described in the literature. We report a case of a 63-year-old woman with FH and markedly elevated lipoprotein(a) (Lp[a]) levels who experienced such a reaction while undergoing LA with a dextran-sulfate cellulose column on the Kaneka MA-01 Liposorber system...
March 2016: Journal of Clinical Lipidology
Darshan A Mehta, Abiola O Oladapo, Joshua D Epstein, Aaron R Novack, Ellis J Neufeld, Joel W Hay
BACKGROUND: Hemophilia patients use factor-clotting concentrates (factor VIII for hemophilia A and factor IX for hemophilia B) for improved blood clotting. These products are used to prevent or stop bleeding episodes. However, some hemophilia patients develop inhibitors (i.e., the patient's immune system develops antibodies against these factor concentrates). Hence, these patients do not respond well to the factor concentrates. A majority of hemophilia patients with inhibitors are managed on-demand with the following bypassing agents: recombinant factor VIIa (rFVIIa) and activated prothrombin complex concentrate (aPCC)...
February 2016: Journal of Managed Care & Specialty Pharmacy
Daisuke Sakota, Ryo Kosaka, Masahiro Nishida, Osamu Maruyama
The aggregability of red blood cell (RBCs) is associated with the contribution of plasma proteins, such as fibrinogen and lipoproteids, to blood-clotting. Hence, we hypothesized that RBC aggregability reflects the blood-clotting reaction. A noninvasive optical monitoring method to measure RBC aggregability for the assessment of blood-clotting stage during mechanical circulatory support was developed. An in vitro thrombogenic test was conducted with a rotary blood pump using heparinized fresh porcine blood. Near-infrared laser light at a wavelength of 785 nm was guided by an optical fiber...
September 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
Sudesh Prabhu, Adrian C Mattke, Ben Anderson, Craig McBride, Lucy Cooke, Tom Karl, Nelson Alphonso
BACKGROUND: The management of congenital diaphragmatic hernia (CDH) in neonates has evolved considerably over the last three decades. Initial stabilization followed by surgical repair is the current standard of care. A subset fails to achieve adequate oxygenation with medical management, including the use of high frequency oscillation and inhaled nitric oxide. The mortality in this group exceeds 80% without additional management strategies. Extracorporeal life support (ECLS) is a well-established modality for managing these neonates with CDH and has been shown to improve early survival in selected cases...
September 2016: ANZ Journal of Surgery
M Morfini, A Dragani, E Paladino, P Radossi, G Di Minno, M G Mazzucconi, G Rossetti, G Barillari, M Napolitano, G Tagariello
INTRODUCTION: Pharmacokinetic (PK) studies on recombinant FIX concentrate, Nonacog alpha, were conducted with different sampling time designs which gave rise to not complete and homogenous outcomes. In addition, patient's FIX genotype/PK relationship has never been investigated. AIM: Investigate how different sampling times may affect PK parameters and try to find a FIX genotype/PK relationship. PATIENTS AND METHODS: A cohort pharmacokinetic, Nonacog Alpha single-dose, open-label, non-comparative study was conducted in eight Comprehensive Care Haemophilia Centres in Italy...
July 2016: Haemophilia: the Official Journal of the World Federation of Hemophilia
Terry King-Wing Ma, Kai-Ming Chow, Bonnie Ching-Ha Kwan, Chi-Bon Leung, Cheuk Chun Szeto, Philip Kam-To Li
BACKGROUND: Tranexamic acid (TXA) is a synthetic anti-fibrinolytic agent commonly used for the prevention and treatment of bleeding disorders. Since renal excretion is the main route of elimination, patients with chronic kidney disease (CKD) are at risk of TXA toxicity. METHODS: From 2005 to 2014, we encountered four CKD patients who experienced severe complications related to TXA. Clinical manifestations and outcome of these patients were recorded. We then performed a qualitative literature review of published cases of TXA toxicity in CKD patients in the PubMed database from 1 January 1972 to 31 December 2015...
March 10, 2016: Nephrology
Vikram Mitra, Natalia Govorukhina, Gooitzen Zwanenburg, Huub Hoefsloot, Inge Westra, Age Smilde, Theo Reijmers, Ate G J van der Zee, Frank Suits, Rainer Bischoff, Péter Horvatovich
Complex shotgun proteomics peptide profiles obtained in quantitative differential protein expression studies, such as in biomarker discovery, may be affected by multiple experimental factors. These preanalytical factors may affect the measured protein abundances which in turn influence the outcome of the associated statistical analysis and validation. It is therefore important to determine which factors influence the abundance of peptides in a complex proteomics experiment and to identify those peptides that are most influenced by these factors...
April 19, 2016: Analytical Chemistry
D V Shchukin, V N Lesovoy, I A Garagaty, G G Hareba, N N Polyakov, Y A Ilyukhin, A A Altukhov
The paper analyzes surgical methods of bleeding control from the lumen of the isolated inferior vena cava (IVC) segment during thrombectomy. The study included 13 patients with IVC tumor thrombus. The sources of bleeding were divided into variant lumbar veins and lumbar veins of the infrarenal IVC segment. Variant lumbar veins were classified as vessels entering IVC at its posterior surface at suprarenal level. The volume of blood loss from the lumen of the isolated IVC segment during thrombectomy ranged from 100 to 3500 ml with an average of 507...
September 2015: Urologii︠a︡
Dong Geum Shin, Tae Hoon Kim, Jae Sun Uhm, Joung Youn Kim, Boyoung Joung, Moon Hyoung Lee, Hui Nam Pak
PURPOSE: Compared with warfarin, novel oral anticoagulants (NOACs) are convenient to use, although they require a blanking period immediately before radiofrequency catheter ablation for atrial fibrillation (AF). We compared NOACs and uninterrupted warfarin in the peri-procedural period of AF ablation. MATERIALS AND METHODS: We compared 141 patients treated with peri-procedural NOACs (72% men; 58 ± 11 years old; 71% with paroxysmal AF) and 281 age-, sex-, AF type-, and history of stroke-matched patients treated with uninterrupted warfarin...
March 2016: Yonsei Medical Journal
Maria Fernanda López-Fernández, Carmen Altisent Roca, Maria Teresa Álvarez-Román, Mariana Isabel Canaro Hirnyk, Maria Eva Mingot-Castellano, Víctor Jiménez-Yuste, Ana Rosa Cid Haro, Rosario Pérez-Garrido, Carmen Sedano Balbas
Prophylaxis with the blood clotting factor, factor VIII (FVIII) is ineffective for individuals with haemophilia A and high-titre inhibitors to FVIII. Prophylaxis with the FVIII bypassing agents activated prothrombin complex concentrates (aPCC; FEIBA® Baxalta) or recombinant activated factor VII (rFVIIa; Novo-Seven®, Novo Nordisk) may be an effective alternative. It was our aim to develop evidence -and expert opinion- based guidelines for prophylactic therapy for patients with high-titre inhibitors to FVIII...
May 2, 2016: Thrombosis and Haemostasis
Aadil Kakajiwala, Kathleen Chiotos, Julie Brothers, April Lederman, Sandra Amaral
INTRODUCTION: One of the greatest problems associated with continuous renal replacement therapy (CRRT) is the early clotting of filters. A literature search revealed three case reports of lipemic blood causing recurrent clotting and reduced CRRT circuit survival time in adult patients, but no reports of cases in children. DIAGNOSIS/TREATMENT: A 23-month-old male infant with Martinez-Frias syndrome and multivisceral transplant was admitted to the hospital with severe sepsis and hemolytic anemia...
January 27, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"