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Heparin-induced thrombotic thrombocytopenia
D E Phillips1, D K Payne, G M Mills
1University of Kentucky, Lexington.
The Annals of Pharmacotherapy
|January 1, 1994
Summary
Heparin-induced thrombotic thrombocytopenia (HITTS) is a serious complication of heparin therapy. Early recognition and cessation of heparin are crucial for patient outcomes, as laboratory tests for HITTS are often unreliable.
Area of Science:
- Hematology
- Pharmacology
- Critical Care Medicine
Background:
- Heparin is widely used for anticoagulation.
- Heparin-induced thrombotic thrombocytopenia (HITTS) is a rare but severe adverse effect.
- HITTS presents with thrombocytopenia and thrombosis.
Observation:
- A 36-year-old woman with multiple comorbidities developed HITTS with limb gangrene.
- Diagnosis of HITTS was based on clinical presentation due to unreliable laboratory tests.
- Immediate heparin cessation and amputation were performed.
Findings:
- The patient's condition improved after heparin cessation and amputation.
- Heparin use, even in small doses, can lead to catastrophic outcomes in susceptible patients.
- Platelet count monitoring is essential during heparin therapy.
Implications:
- Healthcare providers must be vigilant for HITTS in patients receiving heparin.
- Prompt discontinuation of heparin and alternative anticoagulation strategies are vital.
- Understanding HITTS pathophysiology aids in clinical management and prevention.