Blood online
Home About Blood Authors Subscriptions Permission Advertising Public Access contact us
 

 
Advanced
Current Issue
First Edition
Archives
Submit to Blood
Search
American Society of Hematology
Meeting Abstracts
Email Alerts
This Article
Right arrow Full Text
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Right arrow Citation Map
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Right arrow Rights and Permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Warkentin, T. E.
Right arrow Articles by Kelton, J. G.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Warkentin, T. E.
Right arrow Articles by Kelton, J. G.
Related Collections
Right arrow Clinical Trials and Observations
Right arrow Hemostasis, Thrombosis, and Vascular Biology
Social Bookmarking
 Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

arrow to previous article Previous Article  |  Table of Contents  |  Next Article next article arrow

Blood, 1 September 2000, Vol. 96, No. 5, pp. 1703-1708

CLINICAL OBSERVATIONS, INTERVENTIONS, AND THERAPEUTIC TRIALS

Impact of the patient population on the risk for heparin-induced thrombocytopenia

Theodore E. Warkentin, Jo-Ann I. Sheppard, Peter Horsewood, Patricia J. Simpson, Jane C. Moore, and John G. Kelton

From the Department of Pathology and Molecular Medicine and the Department of Medicine, McMaster University; and from the Hamilton Regional Laboratory Medicine Program, Hamilton Health Sciences Corporation, Hamilton, Ontario, Canada.

The frequency of immune heparin-induced thrombocytopenia (HIT) varies among prospective studies. It is unknown whether this is caused by differences in the heparin preparations, the patient populations, or the types of serologic assay used to confirm the diagnosis. Seven hundred forty-four patients were studied from 3 different clinical treatment settings, as follows: unfractionated heparin (UFH) during or after cardiac surgery (n = 100), UFH after orthopedic surgery (n = 205), and low-molecular-weight heparin (LMWH) after orthopedic surgery (n = 439). Both an activation assay and an antigen assay were used to detect heparin-dependent IgG (HIT-IgG) antibodies. By activation assay, the frequency of HIT-IgG formation ranged from a low of 3.2% in orthopedic patients receiving LMWH to a high of 20% in cardiac patients receiving UFH; by antigen assay, the corresponding frequencies ranged from 7.5% to 50%. Both UFH use (P = .002) and cardiac surgery (P = .01) were more likely to be associated with HIT-IgG formation. However, among patients in whom HIT-IgG formed and who were administered UFH, the probability for HIT was higher among orthopedic patients than among cardiac patients (by activation assay: 52.6% compared with 5%; odds ratio, 21.1 [95% CI, 2.2-962.8]; P = .001; by antigen assay: 34.5% compared with 2.0%; odds ratio, 25.8 [95% CI, 3.2-1141]; P < .001). It is concluded that there is an unexpected dissociation between the frequency of HIT-IgG formation and the risk for HIT that is dependent on the patient population. HIT-IgG antibodies are more likely to form in patients who undergo cardiac surgery than in orthopedic patients, but among patients in whom antibodies do form, orthopedic patients are more likely to develop HIT.

© 2000 by The American Society of Hematology.
 

Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:


Home page
Anesth. Analg.Home page
A. Greinacher and J. H. Levy
HIT Happens: Diagnosing and Evaluating the Patient with Heparin-Induced Thrombocytopenia
Anesth. Analg., August 1, 2008; 107(2): 356 - 358.
[Full Text] [PDF]


Home page
Anesth. Analg.Home page
M. P. Mullen, D. L. Wessel, K. C. Thomas, K. Gauvreau, E. J. Neufeld, F. X. McGowan Jr, and J. A. DiNardo
The Incidence and Implications of Anti-Heparin-Platelet Factor 4 Antibody Formation in a Pediatric Cardiac Surgical Population
Anesth. Analg., August 1, 2008; 107(2): 371 - 378.
[Abstract] [Full Text] [PDF]


Home page
ChestHome page
T. E. Warkentin, A. Greinacher, A. Koster, and A. M. Lincoff
Treatment and Prevention of Heparin-Induced Thrombocytopenia: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition)
Chest, June 1, 2008; 133(6_suppl): 340S - 380S.
[Abstract] [Full Text] [PDF]


Home page
Ann Rheum DisHome page
D Alpert, L A Mandl, D Erkan, W Yin, E I Peerschke, and J E Salmon
Anti-heparin platelet factor 4 antibodies in systemic lupus erythaematosus are associated with IgM antiphospholipid antibodies and the antiphospholipid syndrome
Ann Rheum Dis, March 1, 2008; 67(3): 395 - 401.
[Abstract] [Full Text] [PDF]


Home page
Anesth. Analg.Home page
J. H. Levy and N. F. Adkinson Jr
Anaphylaxis During Cardiac Surgery: Implications for Clinicians
Anesth. Analg., February 1, 2008; 106(2): 392 - 403.
[Abstract] [Full Text] [PDF]


Home page
Arch Intern MedHome page
G. B. F. Oliveira, E. M. Crespo, R. C. Becker, E. F. Honeycutt, C. S. Abrams, K. J. Anstrom, P. B. Berger, L. D. Davidson-Ray, E. L. Eisenstein, N. S. Kleiman, et al.
Incidence and Prognostic Significance of Thrombocytopenia in Patients Treated With Prolonged Heparin Therapy
Arch Intern Med, January 14, 2008; 168(1): 94 - 102.
[Abstract] [Full Text] [PDF]


Home page
CLIN APPL THROMB HEMOSTHome page
M.F. Barginear, L. Donahue, S.L. Allen, D.R. Budman, T. Bradley, M. Bhaskaran, and I. Shapira
Heparin-Induced Thrombocytopenia Complicating Hemodialysis
Clinical and Applied Thrombosis/Hemostasis, January 1, 2008; 14(1): 105 - 107.
[Abstract] [PDF]


Home page
BloodHome page
S. Suvarna, B. Espinasse, R. Qi, R. Lubica, M. Poncz, D. B. Cines, M. R. Wiesner, and G. M. Arepally
Determinants of PF4/heparin immunogenicity
Blood, December 15, 2007; 110(13): 4253 - 4260.
[Abstract] [Full Text] [PDF]


Home page
ChestHome page
T. A. Morris, S. Castrejon, G. Devendra, and A. C. Gamst
No Difference in Risk for Thrombocytopenia During Treatment of Pulmonary Embolism and Deep Venous Thrombosis With Either Low-Molecular-Weight Heparin or Unfractionated Heparin: A Metaanalysis
Chest, October 1, 2007; 132(4): 1131 - 1139.
[Abstract] [Full Text] [PDF]


Home page
Anesth. Analg.Home page
J. H. Levy, K. A. Tanaka, and M. J. Hursting
Reducing Thrombotic Complications in the Perioperative Setting: An Update on Heparin-Induced Thrombocytopenia
Anesth. Analg., September 1, 2007; 105(3): 570 - 582.
[Abstract] [Full Text] [PDF]


Home page
Postgrad. Med. J.Home page
I Ahmed, A Majeed, and R Powell
Heparin induced thrombocytopenia: diagnosis and management update
Postgrad. Med. J., September 1, 2007; 83(983): 575 - 582.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
H. Tsukui, A. Abla, J. J. Teuteberg, D. M. McNamara, M. A. Mathier, L. M. Cadaret, and R. L. Kormos
Cerebrovascular accidents in patients with a ventricular assist device
J. Thorac. Cardiovasc. Surg., July 1, 2007; 134(1): 114 - 123.
[Abstract] [Full Text] [PDF]


Home page
ChestHome page
T. E. Warkentin and J. W. Eikelboom
Who Is (Still) Getting HIT?
Chest, June 1, 2007; 131(6): 1620 - 1622.
[Full Text] [PDF]


Home page
ChestHome page
M. A. Smythe, J. M. Koerber, and J. C. Mattson
The Incidence of Recognized Heparin-Induced Thrombocytopenia in a Large, Tertiary Care Teaching Hospital
Chest, June 1, 2007; 131(6): 1644 - 1649.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
D. C. Kress, S. Aronson, M. L. McDonald, M. I. Malik, A. B. Divgi, A. J. Tector, F. X. Downey III, A. J. Anderson, M. Stone, and C. Clancy
Positive Heparin-Platelet Factor 4 Antibody Complex and Cardiac Surgical Outcomes
Ann. Thorac. Surg., May 1, 2007; 83(5): 1737 - 1743.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
B. M. Everett, R. Yeh, S. Y. Foo, D. Criss, E. M. Van Cott, M. Laposata, E. G. Avery, W. D. Hoffman, J. Walker, D. Torchiana, et al.
Prevalence of Heparin/Platelet Factor 4 Antibodies Before and After Cardiac Surgery
Ann. Thorac. Surg., February 1, 2007; 83(2): 592 - 597.
[Abstract] [Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
T. E. Warkentin and M. A. Crowther
When is HIT Really HIT?
Ann. Thorac. Surg., January 1, 2007; 83(1): 21 - 23.
[Full Text] [PDF]


Home page
Ann. Thorac. Surg.Home page
A. Koster, S. Huebler, E. Potapov, O. Meyer, M. Jurmann, Y. Weng, M. Pasic, T. Drews, H. Kuppe, M. Loebe, et al.
Impact of Heparin-Induced Thrombocytopenia on Outcome in Patients with Ventricular Assist Device Support: Single-Institution Experience in 358 Consecutive Patients
Ann. Thorac. Surg., January 1, 2007; 83(1): 72 - 76.
[Abstract] [Full Text] [PDF]


Home page
Crit Care NurseHome page
M. F. Cooney
Heparin-induced thrombocytopenia: advances in diagnosis and treatment.
Crit. Care Nurse, December 1, 2006; 26(6): 30 - 36.
[Full Text] [PDF]


Home page
ASH ANNUAL MEETING ABSTRACTSHome page
M. A. Elliott, S. Schulte, E. A. Plumhoff, R. K. Pruthi, W. L. Nichols, M. R. Litzow, D. A. Gastineau, and J. A. Heit
Frequency of Heparin-Induced Thrombocytopenia and Heparin-Dependent IgG Antibodies in Hematopoietic Stem Cell Transplant Recipients.
Blood (ASH Annual Meeting Abstracts), November 16, 2006; 108(11): 4059 - 4059.
[Abstract] [PDF]


Home page
The Annals of PharmacotherapyHome page
E. A Nutescu, A. K Wittkowsky, P. P Dobesh, D. W Hawkins, and W. E Dager
Choosing the Appropriate Antithrombotic Agent for the Prevention and Treatment of VTE: A Case-Based Approach
Ann. Pharmacother., September 1, 2006; 40(9): 1558 - 1570.
[Abstract] [Full Text] [PDF]


Home page
NEJMHome page
G. M. Arepally and T. L. Ortel
Heparin-Induced Thrombocytopenia
N. Engl. J. Med., August 24, 2006; 355(8): 809 - 817.
[Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
S. Schenk, A. El-Banayosy, W. Prohaska, L. Arusoglu, M. Morshuis, W. Koester-Eiserfunke, L. Kizner, E. Murray, P. Eichler, R. Koerfer, et al.
Heparin-induced thrombocytopenia in patients receiving mechanical circulatory support
J. Thorac. Cardiovasc. Surg., June 1, 2006; 131(6): 1373 - 1381.
[Abstract] [Full Text] [PDF]


Home page
ChestHome page
B. E. Lewis, D. E. Wallis, M. J. Hursting, R. L. Levine, and F. Leya
Effects of Argatroban Therapy, Demographic Variables, and Platelet Count on Thrombotic Risks in Heparin-Induced Thrombocytopenia
Chest, June 1, 2006; 129(6): 1407 - 1416.
[Abstract] [Full Text] [PDF]


Home page
Canadian J. AnesthesiaHome page
E. de Maistre, Y. Gruel, and D. Lasne
Diagnosis and management of heparin-induced thrombocytopenia: [Le diagnostic et le traitement de la thrombopenie induite par l'heparine].
Can J Anesth, June 1, 2006; 53(6_suppl): S123 - S134.
[Abstract] [Full Text] [PDF]


Home page
ChestHome page
R. L. Levine, M. J. Hursting, and D. McCollum
Argatroban Therapy in Heparin-Induced Thrombocytopenia With Hepatic Dysfunction
Chest, May 1, 2006; 129(5): 1167 - 1175.
[Abstract] [Full Text] [PDF]


Home page
J. Thorac. Cardiovasc. Surg.Home page
E. Bennett-Guerrero, T. F. Slaughter, W. D. White, I. J. Welsby, C. S. Greenberg, H. El-Moalem, and T. L. Ortel
Preoperative anti-PF4/heparin antibody level predicts adverse outcome after cardiac surgery
J. Thorac. Cardiovasc. Surg., December 1, 2005; 130(6): 1567 - 1572.
[Abstract] [Full Text] [PDF]


Home page
BloodHome page
P. Prandoni, S. Siragusa, B. Girolami, F. Fabris, and for the BELZONI Investigators Group
The incidence of heparin-induced thrombocytopenia in medical patients treated with low-molecular-weight heparin: a prospective cohort study
Blood, November 1, 2005; 106(9): 3049 - 3054.
[Abstract] [Full Text] [PDF]


Home page
BloodHome page
N. Martel, J. Lee, and P. S. Wells
Risk for heparin-induced thrombocytopenia with unfractionated and low-molecular-weight heparin thromboprophylaxis: a meta-analysis
Blood, October 15, 2005; 106(8): 2710 - 2715.
[Abstract] [Full Text] [PDF]


Home page
Nephrol Dial TransplantHome page
G. R. Hetzel and C. Sucker
The heparins: all a nephrologist should know
Nephrol. Dial. Transplant., October 1, 2005; 20(10): 2036 - 2042.
[Full Text] [PDF]


Home page
The Annals of PharmacotherapyHome page
B. V Reddy, E. J Grossman, S. A Trevino, M. J Hursting, and P. T Murray
Argatroban Anticoagulation in Patients with Heparin-Induced Thrombocytopenia Requiring Renal Replacement Therapy
Ann. Pharmacother., October 1, 2005; 39(10): 1601 - 1605.
[Abstract] [Full Text] [PDF]


Home page
BloodHome page
S. Suvarna, L. Rauova, E. K. E. McCracken, C. M. Goss, B. S. Sachais, S. E. McKenzie, M. P. Reilly, M. D. Gunn, D. B. Cines, M. Poncz, et al.
PF4/heparin complexes are T cell-dependent antigens
Blood, August 1, 2005; 106(3): 929 - 931.
[Abstract] [Full Text] [PDF]


Home page
CLIN APPL THROMB HEMOSTHome page
M. J. Hursting, B. E. Lewis, and D. E. Macfarlane
Transitioning from Argatroban to Warfarin Therapy in Patients with Heparin-induced Thrombocytopenia
Clinical and Applied Thrombosis/Hemostasis, July 1, 2005; 11(3): 279 - 287.
[Abstract] [PDF]


Home page
CirculationHome page
I.-K. Jang and M. J. Hursting
When Heparins Promote Thrombosis: Review of Heparin-Induced Thrombocytopenia
Circulation, May 24, 2005; 111(20): 2671 - 2683.
[Full Text] [PDF]


Home page
ChestHome page
R. L. Levine
Finding Haystacks Full of Needles: From Opus to Osler
Chest, May 1, 2005; 127(5): 1488 - 1490.
[Full Text] [PDF]


Home page
NeurologyHome page
C. Pohl, A. Kredteck, B. Bastians, P. Hanfland, T. Klockgether, and U. Harbrecht
Heparin-induced thrombocytopenia in neurologic patients treated with low-molecular-weight heparin
Neurology, April 12, 2005; 64(7): 1285 - 1287.
[Abstract] [Full Text] [PDF]


Home page
ChestHome page
J. G. Kelton
The Pathophysiology of Heparin-Induced Thrombocytopenia: Biological Basis for Treatment
Chest, February 1, 2005; 127(2_suppl): 9S - 20S.
[Full Text] [PDF]


Home page
ChestHome page
T. E. Warkentin
New Approaches to the Diagnosis of Heparin-Induced Thrombocytopenia
Chest, February 1, 2005; 127(2_suppl): 35S - 45S.
[Abstract] [Full Text] [PDF]


Home page
ChestHome page
W. H. Matthai Jr
Thrombocytopenia in Cardiovascular Patients: Diagnosis and Management
Chest, February 1, 2005; 127(2_suppl): 46S - 52S.
[Abstract] [Full Text] [PDF]


Home page
Eur. J. Cardiothorac. Surg.Home page
A. T. Gurbuz, W. G. Elliott, and A. A. Zia
Heparin-induced thrombocytopenia in the cardiovascular patient: diagnostic and treatment guidelines
Eur. J. Cardiothorac. Surg., January 1, 2005; 27(1): 138 - 149.
[Abstract] [Full Text] [PDF]


Home page
BloodHome page
P. Savi, B. H. Chong, A. Greinacher, Y. Gruel, J. G. Kelton, T. E. Warkentin, P. Eichler, D. Meuleman, M. Petitou, J.-P. Herault, et al.
Effect of fondaparinux on platelet activation in the presence of heparin-dependent antibodies: a blinded comparative multicenter study with unfractionated heparin
Blood, January 1, 2005; 105(1): 139 - 144.
[Abstract] [Full Text] [PDF]


Home page
Arch Intern MedHome page
L. Rice
Heparin-Induced Thrombocytopenia: Myths and Misconceptions (That Will Cause Trouble for You and Your Patient)
Arch Intern Med, October 11, 2004; 164(18): 1961 - 1964.
[Full Text] [PDF]


Home page
Journal of Pharmacy PracticeHome page
M. A. Smythe, W. E. Dager, and N. M. Patel
Managing Complications of Anticoagulant Therapy
Journal of Pharmacy Practice, October 1, 2004; 17(5): 327 - 346.
[Abstract] [PDF]


Home page