Diamond-Blackfan anemia history and symptoms

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Overview

Patients with DBA may have a positive family history of DBA. The symptomatic onset of Diamond-Blackfan anemia becomes apparent during the first year of life. The most common symptoms of DBA include: fatigue, weakness, and an abnormally pale appearance (pallor). Approximately half of DBA cases have Congenital malformations, in particular craniofacial, upper-limb, heart, and genitourinary malformations.Patients with Non-classic DBA presents with mild or absent anemia with only subtle indications of erythroid abnormalities such as macrocytosis, elevated ADA, and/or elevated HbF concentration, and have mild anemia beginning later, in childhood or in adulthood, while others have some of the physical features but no bone marrow problems. Minimal or no evidence of congenital anomalies or short stature.

Diagnosis

Study of Choice

Diagnosing DBA is usually hard due to its partial phenotypes and the wide inconsistency of clinical expressions. The International Clinical Consensus Conference stated diagnostic and supporting criteria for the diagnosis of DBA. Based on these criteria, There are two types of Diamond-Blackfan anemia, classical DBA and non-classical DBA. Classical DBA is made in the presence of all the diagnostic criteria and diagnosis of "non-classical DBA" in the presence of one of these criteria: i) Three diagnostic criteria and one major supporting criterion or two minor criteria; ii) Two diagnostic criteria, and three minor supporting criteria; iii) Two major supporting criteria, even in the absence of diagnostic criteria.[1][2]

Diagnostic criteria


Classical DBA

All diagnostic criteria are met


Probable DBA

3 Diagnostic criteria + positive family history

OR

2 Diagnostic criteria + 3 minor criteria

OR

3 Minor criteria + positive family history


Non-classical DBA

DBA associated gene mutation without sufficient diagnostic criteria

History and symptoms

History

Patients with DBA may have a positive family history of DBA. The symptomatic onset of Diamond-Blackfan anemia becomes apparent during the first year of life. A positive family history of DBA is suggestive of DBA.

Common symptoms of Classic DBA:

Common symptoms of Non-classic DBA:

References

  1. Vlachos A, Ball S, Dahl N, Alter BP, Sheth S, Ramenghi U, Meerpohl J, Karlsson S, Liu JM, Leblanc T, Paley C, Kang EM, Leder EJ, Atsidaftos E, Shimamura A, Bessler M, Glader B, Lipton JM (September 2008). "Diagnosing and treating Diamond Blackfan anaemia: results of an international clinical consensus conference". Br. J. Haematol. 142 (6): 859–76. doi:10.1111/j.1365-2141.2008.07269.x. PMC 2654478. PMID 18671700.
  2. Adam MP, Ardinger HH, Pagon RA, Wallace SE, Bean L, Stephens K, Amemiya A. PMID 20301295. Vancouver style error: initials (help); Missing or empty |title= (help)
  3. Adam MP, Ardinger HH, Pagon RA, Wallace SE, Bean L, Stephens K, Amemiya A, Clinton C, Gazda HT. PMID 20301769. Vancouver style error: initials (help); Missing or empty |title= (help)