Heparin-induced thrombocytopenia epidemiology and demographics: Difference between revisions

Jump to navigation Jump to search
Line 21: Line 21:


===Age===
===Age===
*HIT can occur in any age group. Age is not a risk factor for HIT. Please see the Prevalence section above for the prevalence of HIT in pediatric and neonatal populations.
*The adult population is more prone to development of HIT than the pediatric population. Please see the Prevalence section above for the prevalence of HIT in pediatric and neonatal populations.


===Gender===
===Gender===

Revision as of 22:18, 29 July 2017

Heparin-induced thrombocytopenia

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Heparin-induced thrombocytopenia from other Diseases

Epidemiology and Demographics

Risk Factors

Screening

Natural History, Complications and Prognosis

Diagnosis

Diagnostic Criteria

History and Symptoms

Physical Examination

Laboratory Findings

Electrocardiogram

Chest X Ray

Echocardiography and Ultrasound

CT

MRI

Other Imaging Findings

Other Diagnostic Studies

Treatment

Medical Therapy

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Heparin-induced thrombocytopenia epidemiology and demographics On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Heparin-induced thrombocytopenia epidemiology and demographics

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Heparin-induced thrombocytopenia epidemiology and demographics

CDC on Heparin-induced thrombocytopenia epidemiology and demographics

Heparin-induced thrombocytopenia epidemiology and demographics in the news

Blogs on Heparin-induced thrombocytopenia epidemiology and demographics

Directions to Hospitals Treating Heparin-induced thrombocytopenia

Risk calculators and risk factors for Heparin-induced thrombocytopenia epidemiology and demographics

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-In-Chief: Priyamvada Singh, M.B.B.S. [2] Shyam Patel [3]

Overview

Heparin-induced thrombocytopenia (HIT) occurs in persons who are exposed to heparin or heparin-related products. The majority of medically or surgically hospitalized patients are exposure to heparin in some form, so the incidence of HIT can be quite high in these persons. The incidence of HIT is higher with certain type of heparin (such as bovine instead of porcine heparin) and in certain types of patients (such as surgical patients instead of obstetric or pediatric patients). There are no geographic or racial disparities in HIT, but it is known that HIT occurs more commonly in females compared to males.

Epidemiology and demographics

Prevalence

  • Worldwide, the prevalence of HIT (in persons exposed to heparin) ranges from a low of 200 per 100,000 persons to a high of 5,000 per 100,000 persons.[1][2]
  • In pediatric populations, the prevalence of HIT (in persons exposed to heparin) ranges from a low of 1,500 per 100,000 persons to a high of 3,700 per 100,000 persons with an average prevalence of 2,600 per 100,000 persons.[2] The prevalence is 1-3% in children exposed to unfractionated heparin and undergoing cardiac surgery.[3]
  • In neonatal populations, the prevalence of HIT (in persons exposed to heparin) is as low as 330 per 100,000 persons.[2]

Incidence

The statistics for HIT are best reported as prevalence rather than incidence, given the nature of the how the disease develops. The statistics are shown the Prevalence section.

Case Fatality Rate

  • The case fatality rate of HIT is 20-30% for patients who develop thrombosis.[4]
  • For patients who have HIT but do not develop thrombosis, the case fatality rate is unknown but is lower than 20-30%.[4]

Age

  • The adult population is more prone to development of HIT than the pediatric population. Please see the Prevalence section above for the prevalence of HIT in pediatric and neonatal populations.

Gender

  • Females are more commonly affected with HIT than males. The female to male ratio is approximately 2.4 to 1.[5] This is thought to be related to higher predilection for autoimmune tendencies in females compared to males.

Race

  • HIT is more prevalent in the African American race than the Caucasian race.[5]

Developed Countries

  • In this section you should describe the impact of the disease in developed countries.
  • Incidence, prevalence, and geographical distribution or areas of interest can be mentioned, as well as the relevant impact the disease has on society.

Developing Countries

  • In this section you should describe the impact of the disease in developing countries.
  • Incidence, prevalence, and geographical distribution or areas of interest can be mentioned, as well as the relevant impact the disease has on society.

Reference

  1. Arepally GM, Ortel TL (2010). "Heparin-induced thrombocytopenia". Annu Rev Med. 61: 77–90. doi:10.1146/annurev.med.042808.171814. PMC 4153429. PMID 20059332.
  2. 2.0 2.1 2.2 Obeng EA, Harney KM, Moniz T, Arnold A, Neufeld EJ, Trenor CC (2015). "Pediatric heparin-induced thrombocytopenia: prevalence, thrombotic risk, and application of the 4Ts scoring system". J Pediatr. 166 (1): 144–50. doi:10.1016/j.jpeds.2014.09.017. PMC 4274245. PMID 25444534.
  3. Vakil NH, Kanaan AO, Donovan JL (2012). "Heparin-induced thrombocytopenia in the pediatric population: a review of current literature". J Pediatr Pharmacol Ther. 17 (1): 12–30. doi:10.5863/1551-6776-17.1.12. PMC 3428184. PMID 23118656.
  4. 4.0 4.1 Franchini M (2005). "Heparin-induced thrombocytopenia: an update". Thromb J. 3: 14. doi:10.1186/1477-9560-3-14. PMC 1262784. PMID 16202170.
  5. 5.0 5.1 Lee GM, Arepally GM (2013). "Diagnosis and management of heparin-induced thrombocytopenia". Hematol Oncol Clin North Am. 27 (3): 541–63. doi:10.1016/j.hoc.2013.02.001. PMC 3668315. PMID 23714311.

Template:WS Template:WH