Summary
Definition
History and exam
Key diagnostic factors
- history of recurrent or severe bleeding
- bleeding into muscles
- prolonged bleeding following heel stick or circumcision
- mucocutaneous bleeding
- hemarthrosis
- pseudotumor
- intracranial bleeding
Other diagnostic factors
- excessive bruising/hematoma
- fatigue
- menorrhagia and bleeding following surgical procedures or childbirth (female carriers)
- extensive cutaneous purpura (acquired hemophilia)
- gastrointestinal bleeding and hematuria
- distended and painful abdomen
- pallor, tachycardia, tachypnea, or hypotension
Risk factors
- family history of hemophilia (congenital hemophilia)
- male sex (congenital hemophilia)
- age >60 years (acquired hemophilia)
- autoimmune disorders, inflammatory bowel disease, diabetes, hepatitis, pregnancy and postpartum period, malignancy, monoclonal gammopathies, use of certain drugs (acquired hemophilia)
Diagnostic tests
1st tests to order
- activated partial thromboplastin time (aPTT)
- plasma factor VIII and IX assay
- mixing study
- CBC
- prothrombin time (PT)
- plasma von Willebrand factor assay
- plasma factor V, VII assay
- plasma factor XI, XII assay
- closure time/bleeding time and platelet aggregation studies
- serum liver aminotransferases (aspartate aminotransferase [AST] and alanine aminotransferase [ALT])
- plain x-rays of specific bony sites
- prenatal factor VIII or IX mutation analysis by amniocentesis or chorionic villus sampling (CVS)
Tests to consider
- head or neck CT
- head or neck MRI
- abdominal ultrasound or abdominopelvic CT scan
- esophagogastroduodenoscopy or colonoscopy
- blood factor VIII or IX mutation analysis
- plasma factor VIII or IX inhibitor screen
- Bethesda assay/modified Bethesda assay (on plasma sample)
Treatment algorithm
life-threatening/limb-threatening bleed
congenital: nonlife-threatening bleed into joint or muscle
congenital: nonlife-threatening bleed into urinary tract
congenital: nonlife-threatening nasal or oral bleeding
acquired
inhibitors to factor VIII or IX
no VIII/IX inhibitors: severe hemophilia
no VIII/IX inhibitors: mild-moderate hemophilia with recurrent bleeds into single joint
Contributors
Authors
Man-Chiu Poon, MD, FRCP (C), FACP
Professor Emeritus
Departments of Medicine, Pediatrics and Oncology
Cumming School of Medicine
University of Calgary
Calgary
Canada
Disclosures
M-CP has been an ad hoc speaker for Bayer, Novo Nordisk, and Pfizer; attended advisory board meetings of Bioverativ/Sanofi, CSL Behring, KVR Pharmaceuticals, Novo Nordisk, Octapharma, Pfizer, Roche, and Takeda; received grant funding from Bayer and CSL Behring; and undertaken contract research for Novo Nordisk.
Adrienne Lee, MD, FRCP (C)
Clinical Assistant Professor
Department of Medicine
Cumming School of Medicine
University of Calgary
Calgary
Canada
Disclosures
AL declares that she has no competing interests.
Acknowledgements
Professor Poon and Dr Lee would like to gratefully acknowledge Dr Nigel S. Key, Dr Paul Giangrande, Dr Nidra I. Rodriguez, and Dr W. Keith Hoots, the previous contributors to this topic.
Disclosures
NSK has undertaken paid consultancy for Baxter Biosciences, Novo Nordisk, CSL Behring, and Bayer. He has received grant funding from Baxter. PG has undertaken paid consultancy and/or received lecture fees from the following companies involved in hemophilia care: Bayer, CSL Behring, NovoNordisk, Pfizer/ BPL, Octapharma, Biogen Idec, and Biotest. NSK, NIR, and WKH are authors of reference(s) cited in this topic.
Peer reviewers
Louis Aledort, MD
The Mary Weinfeld Professor of Clinical Research in Hemophilia
Mount Sinai School of Medicine
New York
NY
Disclosures
LA declares that he has no competing interests.
Christoph Pechlaner, MD
Associate Professor of Medicine
Innsbruck Medical University
Innsbruck
Austria
Disclosures
CP declares that he has no competing interests.
Differentials
- Von Willebrand disease (VWD)
- Platelet dysfunction
- Deficiency of other coagulation factors (e.g., factor V, VII, X XI, or fibrinogen)
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