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https://www.readbyqxmd.com/read/29683226/low-incidence-of-heparin-induced-skin-lesions-in-orthopedic-surgery-patients-with-low-molecular-weight-heparins
#1
M Schindewolf, M Paulik, H Kroll, R Kaufmann, M Wolter, W-H Boehncke, E Lindhoff-Last, A Recke, R J Ludwig
BACKGROUND: Heparins are widely prescribed for prevention and therapy of arterial and venous thromboembolic diseases. Heparin-induced skin lesions are the most frequent adverse effects of subcutaneous heparin treatment in non-surgical patients (7.5-39.8%); no data exist on surgical patients. Commonly, they are due to a delayed-type hypersensitivity reaction (DTH), but may also be a manifestation of life-threatening heparin-induced thrombocytopenia (HIT). Lesions of both entities resemble initially...
April 23, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29424412/-treatment-of-heparin-induced-thrombocytopenia-with-rivaroxaban-case-report
#2
Gustavo Rivera O, Oscar Corsi S, Andrés Pavlovic J, Andrés Aizman S, Pablo Varas A
Heparin-induced thrombocytopenia (HIT) is immune-mediated. It occurs more frequently with unfractionated heparin (UFH) than with low molecular weight heparins (LMWH). It is associated with thromboembolic rather than hemorrhagic events, as opposed to thrombocytopenia of other etiologies. The key in therapy is the cessation of heparin and the start of another anticoagulant. We report a 58 years old female with HIT secondary to the use of Enoxaparin who was successfully managed with Rivaroxaban. Our goal is to report a novel therapy and provide the evidence that supports its use...
September 2017: Revista Médica de Chile
https://www.readbyqxmd.com/read/29421832/heparin-induced-thrombocytopenia-during-obstetric-hospital-admissions
#3
Deepika Sagaram, Zainab Siddiq, Andrew B Eisenberger, Cande V Ananth, Jason D Wright, Mary E D'Alton, Alexander M Friedman
INTRODUCTION:  The rate of heparin-induced thrombocytopenia (HIT) on a population basis is unknown. The objective of this study was to characterize the risk for HIT during antepartum, delivery, and postpartum hospitalizations in the United States. MATERIALS AND METHODS: A large administrative database was used to determine the risk of HIT in hospitalized obstetric patients who received unfractionated heparin (UFH) or low molecular weight heparin (LMWH). Patients were presumed to have HIT if they were exposed to UFH or LMWH, received a diagnosis of HIT, and were administered a medication for the treatment of HIT including bivalirudin, argatroban, fondaparinux, or lepirudin...
February 8, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29095327/cerebral-venous-sinus-thrombosis-due-to-low-molecular-weight-heparin-induced-thrombocytopenia
#4
Ezequiel Gleichgerrcht, Ming Y Lim, Tanya N Turan
INTRODUCTION: Heparin-induced thrombocytopenia (HIT) is an immune-mediated complication of heparin exposure. A limited number of studies have reported cerebral venous sinus thrombosis (CVST) as the presenting thrombotic event induced by HIT, only one of which occurred with exposure to low-molecular-weight heparin (LMWH), with death as outcome. Here, we present a unique case of LMWH-induced HIT leading to CVST but resulting in good clinical outcome. CASE REPORT: A 52-year-old woman received subcutaneous LMWH for deep vein thrombosis prophylaxis while in rehabilitation following kyphoplasty for spinal fracture related to recent trauma...
November 2017: Neurologist
https://www.readbyqxmd.com/read/28968537/pf4-hit-antibody-kko-complexes-activate-broad-innate-immune-and-inflammatory-responses
#5
Lydia A Haile, Roshni Rao, Swamy K Polumuri, Gowthami M Arepally, David A Keire, Daniela Verthelyi, Cynthia D Sommers
INTRODUCTION: Heparin-induced thrombocytopenia (HIT) is an immune-mediated complication of heparin anticoagulation therapy resulting in thrombocytopenia frequently accompanied by thrombosis. Current evidence suggests that HIT is associated with antibodies developed in response to multi-molecular complexes formed by platelet factor 4 (PF4) bound to heparin or cell surface glycosaminoglycans. These antibody complexes activate platelets and monocytes typically through FcγRIIA receptors increasing the production of PF4, inflammatory mediators, tissue factor and thrombin...
November 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28592259/safety-of-low-molecular-weight-heparin-compared-to-unfractionated-heparin-in-hemodialysis-a-systematic-review-and-meta-analysis
#6
Hind Harrak Lazrak, Émilie René, Naoual Elftouh, Martine Leblanc, Jean-Philippe Lafrance
BACKGROUND: Low molecular weight heparins (LMWH) have been extensively studied and became the treatment of choice for several indications including pulmonary embolism. While their efficacy in hemodialysis is considered similar to unfractionated heparin (UFH), their safety remains controversial mainly due to a risk of bioaccumulation in patients with renal impairment. The aim of this systematic review was to evaluate the safety of LMWH when compared to UFH for extracorporeal circuit (ECC) anticoagulation...
June 7, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28431186/unfractionated-heparin-versus-low-molecular-weight-heparins-for-avoiding-heparin-induced-thrombocytopenia-in-postoperative-patients
#7
REVIEW
Daniela R Junqueira, Liliane M Zorzela, Edson Perini
BACKGROUND: Heparin-induced thrombocytopenia (HIT) is an adverse drug reaction presenting as a prothrombotic disorder related to antibody-mediated platelet activation. It is a paradoxical immune reaction resulting in thrombin generation in vivo, which leads to a hypercoagulable state and the potential to initiate venous or arterial thrombosis. A number of factors are thought to influence the incidence of HIT including the type and preparation of heparin (unfractionated heparin (UFH) or low molecular weight heparin (LMWH)) and the heparin-exposed patient population, with the postoperative patient population at higher risk...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27820879/heparin-for-the-treatment-of-thrombosis-in-neonates
#8
REVIEW
Olga Romantsik, Matteo Bruschettini, Simona Zappettini, Luca Antonio Ramenghi, Maria Grazia Calevo
BACKGROUND: Among pediatric patients, newborns are at highest risk of developing thromboembolism. Neonatal thromboembolic (TE) events may consist of both venous and arterial thromboses and often iatrogenic complications (eg, central catheterization). Treatment guidelines for pediatric patients with TE events most often are extrapolated from the literature regarding adults. Options for the management of neonatal TE events include expectant management; nitroglycerin ointment; thrombolytic therapy or anticoagulant therapy, or a combination of the two; and surgery...
November 7, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27701688/-direct-oral-anticoagulants-doac-in-tumor-patients
#9
REVIEW
Ralf Ulrich Trappe, Marianne Sinn, Hanno Riess
There is only limited data for the use of direct oral anticoagulants (DOACs) in tumor patients and no data from prospective randomised trials comparing DOACs to the current standard care: low molecular weight heparine (LMWH). Therefore, DOACs must be used with caution and should be restricted to tumor patients with (1) contraindications for LMWH (e.g. HIT II, phobia of syringe) or (2) to the situations of prolonged anticoagulation after initial therapy with LMWH. Cancer-associated disorders as well as side effects of chemotherapy as nausea and emesis have to be considered as well as potential substance-specific interactions...
September 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27597121/acute-intraoperative-heparin-induced-thrombocytopenia-hit-and-thrombosis-during-coronary-artery-bypass-grafting-two-case-reports-providing-evidence-for-the-role-of-preoperative-lmwh-in-triggering-sensitization
#10
M Khoury, A Pitsis, H Poumpouridou-Kioura, G Soufla, C Kanthou, N Matoula, A Angelidis, E Melissari
INTRODUCTION: Systemic anticoagulation is necessary during cardiac surgery. To date, the only well established anticoagulation protocol involves the use of heparin. However, heparin can cause heparin-induced thrombocytopenia (HIT) a potentially life threatening immune-mediated thromboembolic syndrome. Until now, devastating consequences of HIT syndrome in patients undergoing heart surgery have been described, but only postoperatively. Here we report the development of HIT syndrome during cardiac revascularization by intra-operative heparin administration in two patients previously exposed to LMWH...
October 2016: Thrombosis Research
https://www.readbyqxmd.com/read/27106479/screening-frequency-incidence-and-pattern-of-heparin-induced-thrombocytopenia-syndrome-at-a-large-tertiary-institution
#11
Hae Tha Mya, Hui Ming Tay, Shien Wen Gan, Shilpa Surendran, Shu Hui Yeang, Cynthia Ciwei Lim, HuiLin Choong, Lai Heng Lee, Heng Joo Ng
Increasing awareness and availability of tests for anti-PF4/heparin complex antibodies has raised concerns about indiscriminate testing and inappropriate diagnosis of heparin-induced thrombocytopenia. A retrospective review of HITS testing at a large tertiary centre was performed to determine test patterns and incidence of HITS. Records of anti-PF4 tests over 4 years were reviewed. Positive results were matched against patient medical records and records of heparin utilisation for the diagnosis of HITS. Total of 33,308 patients (9...
July 2016: International Journal of Hematology
https://www.readbyqxmd.com/read/27026768/massive-pulmonary-embolism-in-a-patient-with-heparin-induced-thrombocytopenia-successful-treatment-with-dabigatran
#12
Haci Ahmet Bircan, Emine Guchan Alanoglu
Heparin induced thrombocytopenia (HIT) is a rare, potentially fatal, immune-mediated complication of heparin therapy, associated with thrombosis and thrombocytopenia. In this study, a successful dabigatran administration in a case with massive pulmonary thromboembolism (mPTE) and HIT is presented. 57 years-old female, who was receiving low molecular weight heparin (LMWH) (0.4 mL once a daily, S.C. for 11 days) due to total knee replacement, was referred to our clinic with the hypotension and syncope attacks...
February 2016: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/26916314/the-incidence-of-heparin-induced-thrombocytopenia-in-patients-treated-with-low-molecular-weight-heparin-for-superficial-vein-thrombosis
#13
Michelangelo Sartori, Elisabetta Favaretto, Ludovica Migliaccio, Giuliana Guazzaloca, Cristina Legnani, Gualtiero Palareti, Benilde Cosmi
BACKGROUND: The risk of heparin induced thrombocytopenia (HIT) associated with low molecular weight heparin (LMWH) for treatment of superficial vein thrombosis (SVT) is uncertain. As a result the necessity of platelet count monitoring is unclear in this setting. AIMS: To assess the risk of HIT in outpatients treated with LMWH for SVT. METHODS: In a prospective single centre study we included all symptomatic outpatients in whom a real-time B-mode and color Doppler ultrasonography examination revealed SVT without DVT...
March 2016: Thrombosis Research
https://www.readbyqxmd.com/read/26817956/reducing-the-hospital-burden-of-heparin-induced-thrombocytopenia-impact-of-an-avoid-heparin-program
#14
Kelly E McGowan, Joy Makari, Artemis Diamantouros, Claudia Bucci, Peter Rempel, Rita Selby, William Geerts
Heparin-induced thrombocytopenia (HIT) is an adverse drug reaction occurring in up to 5% of patients exposed to unfractionated heparin (UFH). We examined the impact of a hospital-wide strategy for avoiding heparin on the incidence of HIT, HIT with thrombosis (HITT), and HIT-related costs. The Avoid-Heparin Initiative, implemented at a tertiary care hospital in Toronto, Ontario, Canada, since 2006, involved replacing UFH with low-molecular-weight heparin (LMWH) for prophylactic and therapeutic indications. Consecutive cases with suspected HIT from 2003 through 2012 were reviewed...
April 21, 2016: Blood
https://www.readbyqxmd.com/read/26659923/mechanical-prophylaxis-is-a-heparin-independent-risk-for-anti-platelet-factor-4-heparin-antibody-formation-after-orthopedic-surgery
#15
Seiji Bito, Shigeki Miyata, Kiyoshi Migita, Mashio Nakamura, Kazuhito Shinohara, Tomotaro Sato, Takeharu Tonai, Motoyuki Shimizu, Yasuhiro Shibata, Kazuhiko Kishi, Chikara Kubota, Shinnosuke Nakahara, Toshihito Mori, Kazuo Ikeda, Shusuke Ota, Takeshi Minamizaki, Shigeru Yamada, Naofumi Shiota, Masataka Kamei, Satoru Motokawa
Platelet-activating antibodies, which recognize platelet factor 4 (PF4)/heparin complexes, induce spontaneous heparin-induced thrombocytopenia (HIT) syndrome or fondaparinux-associated HIT without exposure to unfractionated heparin (UFH) or low-molecular-weight heparin (LMWH). This condition mostly occurs after major orthopedic surgery, implying that surgery itself could trigger this immune response, although the mechanism is unclear. To investigate how surgery may do so, we performed a multicenter, prospective study of 2069 patients who underwent total knee arthroplasty (TKA) or hip arthroplasty...
February 25, 2016: Blood
https://www.readbyqxmd.com/read/26621515/identification-of-antithrombotic-drugs-related-to-total-joint-replacement-using-anonymised-free-text-notes-a-search-strategy-in-the-clinical-practice-research-datalink
#16
Johannes Th Nielen, Bart J F van den Bemt, Annelies Boonen, Pieter C Dagnelie, Pieter J Emans, Nicole Veldhorst, Arief Lalmohamed, Tjeerd-Pieter van Staa, Frank de Vries
OBJECTIVES: We aimed to design and test a method to extract information on antithrombotic therapy from anonymised free-text notes in the Clinical Practice Research Datalink (CPRD). SETTING: General practice database representative of the UK. PARTICIPANTS: All patients undergoing total hip replacement (THR, n=25,898) or total knee replacement (TKR, n=22,231) between January 2008 and October 2012 were included. Antithrombotic drug use related to THR or TKR was identified using anonymised free text and prescription data...
November 30, 2015: BMJ Open
https://www.readbyqxmd.com/read/26301168/heparin-induced-thrombocytopenia-in-a-non-heparin-naive-patient-a-case-report
#17
Marion Wiegele, Dieter Adelmann, Johannes Gratz, Eva Schaden
INTRODUCTION: Administration of low molecular weight heparin (LMWH) is recommended for prophylaxis of venous thromboembolism in patients undergoing hip surgery. In this context, heparin-induced thrombocytopenia (HIT) type II is a complication of rare incidence but sometimes fatal outcome. CASE DESCRIPTION: A 52-year old obese patient undergoing antithrombotic therapy with Enoxaparin after hip surgery presented with a painful, swollen leg and thrombocytopenia on day eight after surgery...
2015: SpringerPlus
https://www.readbyqxmd.com/read/26261772/heparin-induced-thrombocytopenia-in-critically-ill-diagnostic-dilemmas-and-management-conundrums
#18
REVIEW
Sachin Gupta, Ravindranath Tiruvoipati, Cameron Green, John Botha, Huy Tran
Thrombocytopenia is often noted in critically ill patients. While there are many reasons for thrombocytopenia, the use of heparin and its derivatives is increasingly noted to be associated with thrombocytopenia. Heparin induced thrombocytopenia syndrome (HITS) is a distinct entity that is characterised by the occurrence of thrombocytopenia in conjunction with thrombotic manifestations after exposure to unfractionated heparin or low molecular weight heparin. HITS is an immunologic disorder mediated by antibodies to heparin-platelet factor 4 (PF4) complex...
August 4, 2015: World Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/25984544/usefulness-of-danaparoid-sodium-in-patients-with-heparin-induced-thrombocytopenia-after-cardiac-surgery
#19
Farzaneh Foroughinia, Fariborz Farsad, Kheirollah Gholami, Somayeh Ahmadi
OBJECTIVE: Thrombocytopenia is a common problem in cardiovascular surgery patients. However, heparin-induced thrombocytopenia (HIT) is a rare but life-threatening complication of prophylaxis or treatment with heparin. Prompt management of HIT with an alternative anticoagulant is necessary due to the extreme risk of thrombotic complications. Therefore, we evaluated the effects of danaparoid in the treatment of HIT in patients with cardiac surgery who are at moderate to high risk of HIT...
April 2015: Journal of Research in Pharmacy Practice
https://www.readbyqxmd.com/read/25960857/is-the-incidence-trend-of-heparin-induced-thrombocytopenia-decreased-by-the-increased-use-of-low-molecular-weight-heparin
#20
Fahad A S Al-Eidan
BACKGROUND: The increasing trend of using low-molecular-weight-heparin (LMWH) versus unfractionated heparin (UFH) in hospitalized adult patients is raising concerns about the incidence of heparin-induced thrombocytopenia (HIT). METHOD: A retrospective study analyzed the requests for heparin-induced antibodies by enzyme-linked immunosorbent assay (ELISA) among adult hospitalized patients during the period from January 2011 to December 2013. These patients received either UFH or LMWH for prevention or therapeutic indications...
2015: Mediterranean Journal of Hematology and Infectious Diseases
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