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https://www.readbyqxmd.com/read/28491757/successful-use-of-bivalirudin-in-place-of-heparin-infusion-for-pulmonary-vein-isolation-using-a-cryoballoon-catheter-in-a-patient-with-heparin-allergy
#1
Ethan R Ellis
No abstract text is available yet for this article.
January 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28262205/characterization-of-mast-cell-activation-syndrome
#2
Lawrence B Afrin, Sally Self, Jeremiah Menk, John Lazarchick
BACKGROUND: Mast cell activation syndrome (MCAS), a recently recognized nonneoplastic mast cell disease driving chronic multisystem inflammation and allergy, appears prevalent and thus important. We report the first systematic characterization of a large MCAS population. METHOD: Demographics, comorbidities, symptoms, family histories, physical examination and laboratory findings were reviewed in 298 retrospective and 115 prospective patients with MCAS. Blood samples from prospective subjects were examined by flow cytometry for clonal mast cell disease and tested for cytokines potentially driving the monocytosis frequent in MCAS...
March 2017: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/28052306/laboratory-monitoring-of-parenteral-direct-thrombin-inhibitors
#3
REVIEW
Elizabeth M Van Cott, A Joshua Roberts, William E Dager
Argatroban and bivalirudin are parenteral direct inhibitors of the activity of thrombin, but, unlike heparin, can inhibit both soluble as well as clot-bound thrombin. These agents do not require antithrombin as a cofactor for activity. The parenteral direct thrombin inhibitors (DTIs) can be used in a variety of settings, including heparin-induced thrombocytopenia (HIT) or an allergy to heparin, and patients requiring anticoagulation for an invasive cardiovascular intervention. Both agents have a relatively short half-life in patients without organ system failure and are typically administered by continuous infusion...
April 2017: Seminars in Thrombosis and Hemostasis
https://www.readbyqxmd.com/read/28012249/inappropriate-documentation-of-heparin-allergy-in-the-medical-record-because-of-misdiagnosis-of-heparin-induced-thrombocytopenia-frequency-and-consequences
#4
C M McMahon, Y C Tanhehco, A Cuker
Essentials Misdiagnosis of heparin-induced thrombocytopenia (HIT) may be associated with adverse outcomes. We conducted a study of patients with a heparin allergy in the chart due to misdiagnosis of HIT. 42% of patients with a heparin allergy due to suspected HIT were clearly HIT-negative. 68% were unnecessarily treated with an alternative anticoagulant, 66% of whom had major bleeding. SUMMARY: Background It is recommended that heparin be added to the allergy list of patients with heparin-induced thrombocytopenia (HIT)...
February 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/27527263/assessing-basophil-activation-by-using-flow-cytometry-and-mass-cytometry-in-blood-stored-24%C3%A2-hours-before-analysis
#5
Kaori Mukai, Nicolas Gaudenzio, Sheena Gupta, Nora Vivanco, Sean C Bendall, Holden T Maecker, Rebecca S Chinthrajah, Mindy Tsai, Kari C Nadeau, Stephen J Galli
BACKGROUND: Basophil activation tests (BATs) have promise for research and for clinical monitoring of patients with allergies. However, BAT protocols vary in blood anticoagulant used and temperature and time of storage before testing, complicating comparisons of results from various studies. OBJECTIVE: We attempted to establish a BAT protocol that would permit analysis of blood within 24 hours of obtaining the sample. METHODS: Blood from 46 healthy donors and 120 patients with peanut allergy was collected into EDTA or heparin tubes, and samples were stored at 4°C or room temperature for 4 or 24 hours before performing BATs...
March 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27465274/immune-pathogenesis-of-heparin-induced-thrombocytopenia
#6
Sanjay Khandelwal, Gowthami M Arepally
The immune response to heparin is one of the most common drug-induced allergies, and yet, atypical for a drug hypersensitivity reaction. Whereas most drug-induced allergies are rare, idiosyncratic and life-long, the allergic response to heparin is common, predictable in certain clinical settings and transient. Advances in the last decade with regards to structural characterisation of the PF4/heparin antigenic complex, contributions of innate immunity and development of animal models have provided insights into the distinctive features of the HIT immune response...
October 28, 2016: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/27313435/a-pilot-study-comparing-hospital-readmission-rates-in-patients-receiving-rivaroxaban-or-enoxaparin-after-orthopedic-surgery
#7
Melissa A Herschman, Frank S Rigelsky, Sandra S Axtell
PURPOSE: A pilot study was conducted to determine whether rivaroxaban (Xarelto, Janssen Pharmaceuticals) resulted in a lower 30-day all-cause readmission rate compared with enoxaparin (Lovenox, Sanofi-Aventis) after total hip arthroplasty (THA) or total knee arthroplasty (TKA) at a community hospital. METHODS: The study was a single-center, retrospective, chart-review investigation involving patients who underwent THA or TKA between May 2013 and May 2014. The study's primary endpoint was the 30-day all-cause readmission rate...
June 2016: P & T: a Peer-reviewed Journal for Formulary Management
https://www.readbyqxmd.com/read/26976119/emerging-concepts-mast-cell-involvement-in-allergic-diseases
#8
REVIEW
Brian D Modena, Kristen Dazy, Andrew A White
In a process known as overt degranulation, mast cells can release all at once a diverse array of products that are preformed and present within cytoplasmic granules. This occurs typically within seconds of stimulation by environmental factors and allergens. These potent, preformed mediators (ie, histamine, heparin, serotonin, and serine proteases) are responsible for the acute symptoms experienced in allergic conditions such as allergic conjunctivitis, allergic rhinitis, allergy-induced asthma, urticaria, and anaphylaxis...
August 2016: Translational Research: the Journal of Laboratory and Clinical Medicine
https://www.readbyqxmd.com/read/26924159/heparin-induced-thrombocytopenia-allergy-to-heparins-heart-failure-thrombi-and-the-kounis-syndrome
#9
Nicholas G Kounis, George D Soufras, Dimitrios Lianas, Nicholas Patsouras
No abstract text is available yet for this article.
July 1, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/26861136/an-overlook-to-the-characteristics-and-roles-played-by-eotaxin-network-in-the-pathophysiology-of-food-allergies-allergic-asthma-and-atopic-dermatitis
#10
REVIEW
Zahra Ahmadi, Gholamhossein Hassanshahi, Hossein Khorramdelazad, Nahid Zainodini, Leila Koochakzadeh
Investigations revealed substantial parts accomplished by chemokines specifically eotaxins and their specific receptors. They are functionally involved in the modulation of the pathologic state of tissue inflammation which is as a result of allergic reactions. Chemokines as small proteins with approximately 8-10 kDa molecular weight are considered and fit in the bigger family of cytokines, containing basic heparin-binding polypeptide mediators. Chemokines actively interfere in the processes of selective, oriented leukocyte (including eosinophil) recruitment...
June 2016: Inflammation
https://www.readbyqxmd.com/read/26287802/use-of-checklists-improves-the-quality-and-safety-of-prehospital-emergency-care
#11
Thoralf Kerner, Willi Schmidbauer, Mares Tietz, Hartwig Marung, Harald V Genzwuerker
OBJECTIVES: High-level emergency medical care requires transfer of evidence-based knowledge into practice. Our study is the first to investigate the feasibility of checklists in improving prehospital emergency care. MATERIALS AND METHODS: Three checklists based on standard operating procedures were introduced: General principles of prehospital care, acute coronary syndrome and acute asthma/acutely exacerbated chronic obstructive pulmonary disease. Subsequent to prehospital care and immediately before transport, information on medical history, diagnostic and therapeutic procedures was obtained...
August 25, 2015: European Journal of Emergency Medicine: Official Journal of the European Society for Emergency Medicine
https://www.readbyqxmd.com/read/26207097/stent-thrombosis-caused-by-metal-allergy-complicated-by-protein-s-deficiency-and-heparin-induced-thrombocytopenia-a-case-report-and-review-of-the-literature
#12
Takao Konishi, Tadashi Yamamoto, Naohiro Funayama, Beni Yamaguchi, Seiichiro Sakurai, Hiroshi Nishihara, Koko Yamazaki, Yusuke Kashiwagi, Yasuki Sasa, Mitsuru Gima, Hideichi Tanaka, Daisuke Hotta, Kenjiro Kikuchi
A 43-year-old woman recipient of a bare metal coronary stent during an acute anterior myocardial infarction was repeatedly hospitalized with recurrent stent thrombosis (ST) over the following 3 years. Emergent coronary angiography showed a thrombus in the in-stent segment of the proximal left anterior descending artery. We repeatedly aspirated the thrombus, which immediately reformed multiple times. The discontinuation of heparin and administration of thrombolytics and argatroban, followed by repeated balloon dilatations, ended the formation of new thrombi...
2015: Thrombosis Journal
https://www.readbyqxmd.com/read/26182695/a-case-of-heparin-allergy-with-good-tolerability-to-fondaparinux-during-pregnancy
#13
A Buonomo, E Nucera, S De Carolis, V De Stefano, L Pascolini, E Di Pasquo, Betti S, D Schiavino
No abstract text is available yet for this article.
2015: Journal of Investigational Allergology & Clinical Immunology
https://www.readbyqxmd.com/read/25934498/bivalirudin-as-an-adjunctive-anticoagulant-to-heparin-in-the-treatment-of-heparin-resistance-during-cardiopulmonary-bypass-assisted-cardiac-surgery
#14
REVIEW
E McNair, J-A Marcoux, C Bally, J Gamble, D Thomson
Heparin resistance (unresponsiveness to heparin) is characterized by the inability to reach acceptable activated clotting time values following a calculated dose of heparin. Up to 20% of the patients undergoing cardiothoracic surgery with cardiopulmonary bypass using unfractionated heparin (UFH) for anticoagulation experience heparin resistance. Although UFH has been the "gold standard" for anticoagulation, it is not without its limitations. It is contraindicated in patients with confirmed heparin-induced thrombocytopenia (HIT) and heparin or protamine allergy...
April 2016: Perfusion
https://www.readbyqxmd.com/read/25383439/kounis-syndrome-secondary-to-food-allergy
#15
B Nachmias, D Leibowitz
No abstract text is available yet for this article.
November 2014: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/25366115/heparin-makes-differences-a-molecular-dynamics-simulation-study-on-the-human-%C3%AE-ii-tryptase-monomer
#16
Yan Wang, Qing-Chuan Zheng, Chui-Peng Kong, Ye Tian, Jiuyu Zhan, Ji-Long Zhang, Hong-Xing Zhang
Human β-tryptase, an enzyme with trypsin-like activity in mast cells, is an important target for the treatment of inflammatory and allergy related diseases. Heparin has been inferred to play a vital role in the stabilization of the tryptase structure and the maintenance of its active form. Up to now, the structure-function relationship between heparin and the βII-tryptase monomer has not been studied with atomic resolution due to the lack of a complex structure of tryptase and heparin. To this end, the exact effect of heparin bonding to the βII-tryptase monomer structure has been investigated using molecular docking and molecular dynamics (MD) simulation...
January 2015: Molecular BioSystems
https://www.readbyqxmd.com/read/25004379/-risk-factors-for-adverse-reactions-after-protamine-administration-in-adult-patients-undergoing-cardiac-surgery-a-case-report-and-literature-review
#17
Simone Brück, Christian Skrabal, Karl Träger, Helmut Reinelt
Protamine is a protein mainly used to reverse anticoagulant effects of heparin during cardiac or vascular surgery with extracorporeal circulation. Adverse events after protamine administration are rare but if they occur they can be catastrophic. Based on a case report with an elective cardiac surgery patient with known allergy to fish, we discuss the related events and risk factors for an adverse reaction after protamine. The patient management and its outcome are presented.
June 2014: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/25004020/management-of-anticoagulation-during-cardiopulmonary-bypass-in-a-patient-with-allergy-to-heparin-and-heparin-like-compounds-a-case-report
#18
Séverine Balthazar, Christine Watremez, Louise Vigneault, Stéphane Eeckhoudt, Françoise Pirson, Cédric Hermans
Hypersensitivity to heparin and heparin-like compounds is a rare condition that represents therapeutic challenges for patients requiring a cardiopulmonary bypass (CPB). We here report the case of a woman with a combined allergy to heparins (fractionated and unfractionated), danaparoid and fondaparinux. She underwent a mitral valve replacement under CBP using lepirudin for systemic anticoagulation. The use of lepirudin instead of unfractionated heparin (UFH) in this setting has many important implications. Lepirudin therapeutic index is narrow and so, overdosing can lead to catastrophic bleeding, whereas underdosing can result in clotting in the CPB tubing...
December 2014: Blood Coagulation & Fibrinolysis: An International Journal in Haemostasis and Thrombosis
https://www.readbyqxmd.com/read/24983260/a-randomized-controlled-comparison-of-flushing-protocols-in-home-care-patients-with-peripherally-inserted-central-catheters
#19
RANDOMIZED CONTROLLED TRIAL
Margaret G Lyons, Ann G Phalen
INTRODUCTION/SIGNIFICANCE/POPULATION: Research has failed to demonstrate an optimal flushing solution or frequency for central catheters. In a 2002 study of 50 000 home care patients, catheter dysfunction with loss of patency was the most common complication and occurred in 29% of the peripherally inserted central catheters (PICCs) tracked. With the advent of the Affordable Care Act and the promise of expanded home care services, this study offers evidence as to a preferred flushing protocol to prevent catheter patency complications for home infusion patients with PICCs...
July 2014: Journal of Infusion Nursing: the Official Publication of the Infusion Nurses Society
https://www.readbyqxmd.com/read/24740692/skin-testing-and-patch-testing-in-non-ige-mediated-drug-allergy
#20
Annick Barbaud
Drug skin tests can reproduce delayed hypersensitivity to drugs and entail a moderate reexposure of patients to offending drugs. Drug patch tests (DPTs) and prick tests can be done with any commercialized form of a drug. In non-severe delayed non-IgE-mediated reactions to drugs, intradermal tests (IDT) with delayed readings have a greater value, but their techniques lack standardization. A negative drug skin test does not exclude the responsibility of a drug, and the drug must be rechallenged in non-severe cases...
June 2014: Current Allergy and Asthma Reports
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