Hemorrhagic Diathesis: Causes, Symptoms and Treatment
Hemorrhagic diathesis refers to an abnormal tendency to bleed, caused by disorders of blood clotting, blood vessels, or platelets.
Things worth knowing about "Hemorrhagic Diathesis"
Hemorrhagic diathesis refers to an abnormal tendency to bleed, caused by disorders of blood clotting, blood vessels, or platelets.
What Is Hemorrhagic Diathesis?
Hemorrhagic diathesis (also called bleeding diathesis) is an umbrella term for conditions that cause an abnormal tendency to bleed spontaneously or excessively, even after minor injuries or without any apparent trigger. It is not a single disease but rather a collective term for various disorders that impair the normal process of hemostasis (the body´s ability to stop bleeding).
Normal hemostasis involves three key components working together: blood vessel walls, platelets (thrombocytes), and coagulation factors (proteins in the blood). A defect in any one of these components can lead to hemorrhagic diathesis.
Causes and Types
Depending on which component of hemostasis is affected, hemorrhagic diathesis is classified into three main categories:
1. Vascular Bleeding Diathesis (Vessel-Related)
- Damage or weakness of blood vessel walls
- Examples: Hereditary hemorrhagic telangiectasia (Osler-Weber-Rendu disease), vasculitis, scurvy (vitamin C deficiency)
2. Platelet-Related Bleeding Diathesis (Thrombocytic)
- Thrombocytopenia: abnormally low platelet count (e.g., in immune thrombocytopenic purpura or bone marrow disorders)
- Thrombocytopathy: dysfunctional platelets (e.g., caused by medications such as aspirin or in Von Willebrand disease)
3. Coagulopathy (Coagulation Factor-Related)
- Deficiency or dysfunction of coagulation factors
- Examples: Hemophilia A and B (inherited deficiency of factor VIII and factor IX respectively), Von Willebrand disease, liver disease (as the liver produces most coagulation factors), vitamin K deficiency, disseminated intravascular coagulation (DIC)
Symptoms
The symptoms of hemorrhagic diathesis vary depending on the underlying cause and severity. Common signs include:
- Petechiae: tiny pinpoint hemorrhages in the skin (characteristic of platelet disorders)
- Ecchymoses: large, spontaneous bruises forming without significant trauma
- Mucosal bleeding: such as frequent nosebleeds or bleeding gums
- Hemarthrosis: bleeding into joints (characteristic of hemophilia)
- Prolonged bleeding time after injuries, surgery, or dental procedures
- Internal bleeding: such as blood in the urine (hematuria) or stool
Diagnosis
Diagnosing hemorrhagic diathesis requires a thorough medical history, physical examination, and a range of laboratory tests:
- Complete blood count (CBC): to assess platelet numbers
- Coagulation tests: aPTT (activated partial thromboplastin time), PT/INR (prothrombin time), thrombin time
- Von Willebrand factor assay
- Individual clotting factor levels: e.g., factor VIII and IX when hemophilia is suspected
- Platelet function tests (e.g., PFA-100)
- Bone marrow biopsy if a hematological disorder is suspected
Treatment
Treatment depends on the underlying cause of the hemorrhagic diathesis:
Pharmacological Treatment
- Hemophilia: replacement of the deficient clotting factor (factor VIII or factor IX concentrates)
- Von Willebrand disease: desmopressin (DDAVP) or Von Willebrand factor concentrates
- Vitamin K deficiency: vitamin K supplementation
- Immune thrombocytopenic purpura (ITP): corticosteroids, intravenous immunoglobulins, or thrombopoietin receptor agonists in refractory cases
Non-Pharmacological Measures
- Avoiding medications that promote bleeding (e.g., NSAIDs, aspirin) whenever possible
- Patient education on injury prevention and safe activities
- Careful surgical planning with specialized preparation and close monitoring
Emergency Management
- For acute, life-threatening bleeding: administration of fresh frozen plasma (FFP), platelet concentrates, or specific clotting factor concentrates
- Antifibrinolytics (e.g., tranexamic acid) to prevent the breakdown of clots
References
- World Federation of Hemophilia (WFH). Guidelines for the Management of Hemophilia. 3rd Edition. 2020. Available at: https://www.wfh.org
- Levi M, Hunt BJ. A critical appraisal of point-of-care coagulation testing in critically ill patients. Journal of Thrombosis and Haemostasis. 2015;13(11):1960-1967. PubMed PMID: 26255829.
- Federici AB. Clinical diagnosis of von Willebrand disease. Haemophilia. 2004;10 Suppl 4:169-176. PubMed PMID: 15479373.
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