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3.10.2 - Thrombotic Disorders in Intensive Care

from Section 3.10 - Haematological and Oncological Disorders

Published online by Cambridge University Press:  27 July 2023

Ned Gilbert-Kawai
Affiliation:
The Royal Liverpool Hospital
Debashish Dutta
Affiliation:
Princess Alexandra Hospital NHS Trust, Harlow
Carl Waldmann
Affiliation:
Royal Berkshire Hospital, Reading
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Summary

Key Learning Points

  1. 1. Heparin-induced thrombocytopenia (HIT) is very rare.

  2. 2. In suspected HIT, a low-risk pre-test probability score has a high negative predictive value, whilst some of the laboratory assays in use have a high rate of false positivity. The 4T score should therefore be calculated first.

  3. 3. Thrombotic thrombocytopenic purpura (TTP) is a haematological emergency, with high mortality if untreated. TTP and haemolytic uraemic syndrome (HUS) should be managed in an appropriate tertiary care centre with access to appropriate specialists and where 24-hour plasma exchange facilities are available.

  4. 4. Platelets should not be given, unless advised by a haematologist, in acute TTP and HUS, as it may precipitate worsening of the thrombotic complications.

  5. 5. Patients who receive eculizumab for HUS should have appropriate meningococcal vaccinations, and commence prophylactic antibiotics for the duration of therapy.

Type
Chapter
Information
Intensive Care Medicine
The Essential Guide
, pp. 331 - 332
Publisher: Cambridge University Press
Print publication year: 2021

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References

References and Further Reading

Scully, M, Hunt, BJ, Benjamin, S, et al.; British Committee for Standards in Haematology. Guidelines on the diagnosis and management of thrombotic thrombocytopenic purpura and other thrombotic microangiopathies. Br J Haematol 2012;158:323–35.CrossRefGoogle ScholarPubMed
Thachil, J, Hill, Q (eds). Haematology in Critical Care: A Practical Handbook. Chichester: John Wiley & Sons; 2014.CrossRefGoogle Scholar
Watson, H, Davidson, S, Keeling, D; Haemostasis and Thrombosis Task Force of the British Committee for Standards in Haematology. Guidelines on the diagnosis and management of heparin-induced thrombocytopenia: second edition. Br J Haematol 2012;159:528–40.CrossRefGoogle ScholarPubMed

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