The rarer inherited coagulation disorders: a review

Area of Science:

• Hematology
• Genetics
• Pediatrics

Background:

• Inherited bleeding disorders are significant health concerns, with hemophilia A, hemophilia B, and von Willebrand's disease representing over 80% of registered cases.
• Standard coagulation screening tests may fail to detect rarer inherited bleeding disorders.
• Accurate diagnosis of rare bleeding disorders is critical in pediatric cases, particularly when investigating non-accidental injury.

Purpose of the Study:

• To review rare inherited bleeding disorders that may be overlooked by common screening methods.
• To highlight the importance of identifying these disorders in pediatric investigations.
• To provide information on presenting features and therapeutic recommendations for rare bleeding disorders.

Main Methods:

• Review of literature and clinical information on rare inherited bleeding disorders.
• Discussion of specific conditions including hemophilia B Leyden, factor VII, X, XI, and XII deficiencies.
• Consideration of inherited platelet number and function defects.

Main Results:

• Common screening tests may not identify rare inherited bleeding disorders.
• Specific rare disorders discussed include hemophilia B Leyden, factor VII, X, XI, and XII deficiencies, and platelet defects.
• Presenting features and therapeutic strategies for these rare conditions are outlined.

Conclusions:

• Rare inherited bleeding disorders require specific diagnostic considerations beyond standard coagulation screening.
• Prompt identification and appropriate management are essential for patients with these conditions.
• Collaboration between clinicians and researchers through sharing of clinical data and samples is encouraged to advance understanding of the biochemistry and molecular genetics of these disorders.