Aplasia medular congénita de serie roja: Anemia de DiamondBlackfan. A propósito de un caso / Marrow aplasia congenital red series: Diamond BlackfanAnemia. About a case

La Aplasia Medular pura de Células Rojas es un trastorno que se caracteriza por anemia con ausencia casi completa de precursores de células rojas en la médula ósea, con contaje de leucocitos y plaquetas normales. La anemia de Diamond-Blackfan es un síndrome de insuficiencia de la médula ósea caracterizada por anemia, reticulocitopenia y disminución de precursores eritroides en la médula ósea. Se presenta el caso de un lactante menor masculino de 2 meses de edad, sin antecedentes familiares ni perinatales de importancia, cuya madre evidencia palidez cutáneo mucosa progresiva asociado a hiporexia; acude a centro de salud donde realizan paraclínicos que reportan hemoglobina en 1,7g/dL. Se realiza frotis de sangre periférica donde se muestra serie eritroide francamente afectada con contaje granulocítico y megacariocítico normales; se realiza biopsia y aspirado de médula ósea concluyéndose aplasia medular de serie roja y en vista de otros hallazgos clínicos, se plantea posible anemia de Diamond-lackfan. Se indica tratamiento con glucocorticoides, sin embargo por respuesta insuficiente, se inicia eritropoyetina aumentando dosis de forma progresiva, a pesar de la administración de la misma, amerita transfusiones sanguíneas de forma regular; se realizan estudios de compatibilidad con familiares de primer grado resultando positivos, actualmente es candidato a trasplante alogénico de médula ósea. Se concluye que a pesar de corresponder a un síndrome poco frecuente, debe sospecharse ante la presencia de anemia severa, sin pérdida sanguínea aguda y descarte previo de otras etiologías, además se plantea que el inicio oportuno del tratamiento es fundamental para la supervivencia de estos pacientes(AU)

Pure red cell aplasia medullary is a disorder characterized by anemia with almost complete absence of red cell precursors in the bone marrow, with leukocyte count and platelets. e Diamond-Blackfan anemia is a failure syndrome characterized by bone marrow anemia, reticulocytopenia and decreased erythroid precursors in the bone marrow. the case of an infant under 2 months of age presented no family or perinatal history major, whose mother progressive skin pallor evidence mucosa associated with hyporexia; go to health center where they perform paraclinical reporting hemoglobin 1.7 g /dL. peripheral blood smear where erythroid frankly affected with normal megakaryocytic granulocytic count shown is made; It biopsied and bone marrow aspirate concluding marrow red cell aplasia; possible anemia Diamond-Blackfan in light of other clinical findings arises. It stays with glucocorticoid treatment, however insufficient response, begins erythropoietin dose progressively increasing, despite it, warrants blood transfusions on a regular basis; compatibility studies performed with firstdegree resulting positive, currently a candidate for allogeneic bone marrow transplantation. It is concluded that despite being a rare syndrome should be suspected in severe anemia where there is acute blood loss, ruling out other etiologies; also timely initiation of treatment is critical to the survival of these patients(AU)

Síndrome de Pearson en un niño trasplantado debido a anemia de Diamond-Blackfan / Pearson syndrome in a child transplanted for Diamond-Blackfan anemia

El síndrome de Pearson (SP) comparte varias características con la anemia de Diamond-Blackfan (ADB), incluida la anemia grave de inicio temprano, por lo que es importante hacer un diagnóstico diferencial. El diagnóstico diferencial de la ADB y el SP es fundamental, ya que los pacientes con ADB podrían res-ponder al tratamiento con corticoesteroides, presentar remisión o beneficiarse del trasplante de células madre hematopoyéti-cas (TCMH). Sin embargo, los pacientes con SP tienen un pronós-tico diferente, con un riesgo muy elevado de acidosis, problemas metabólicos y disfunción pancreática, y una expectativa de vida menor en comparación con aquellos con ADB. En este artículo, presentamos el caso de un paciente sometido a TCMH para la ADB, pero que luego fue diagnosticado con SP tras desarrollar algunas complicaciones.

Pearson syndrome (PS), shares a number of overlapping features with Diamond-Blackfan anemia (DBA), including early onset of severe anemia, making differential diagnosis important. Differential diagnosis of DBA and PS is critical, since those with DBA may respond to treatment with steroids, may undergo remission, or may benefit from hematopoietic stem cell transplantation (HSCT). However, patients with PS have a different prognosis, with a very high risk of developing acidosis, metabolic problems, and pancreatic dysfunction, and a shorter life expectancy than those with DBA. Here we present a patient who underwent HSCT for DBA but was subsequently diagnosed with PS after developing some complications

Importancia del manejo interdisciplinario de pacientes con Fisuras Labiopalatinas y Anemia de Blackfan Diamond. Reporte de caso: seguimiento a 2 años / Importância da abordagem interdisciplinar de paciente com Fissura Labiopalatina e Anemia de Blackfan Diamond: acompanhamento de dois anos / Importance interdisciplinary management of Diamond-Blackfan anemia and Cleft lip and palate sequel: Accompaniment of two years

Las fisuras labiopalatinas (FLP) son las malformaciones craneofaciales congénitas más comunes. La anemia de Diamond-Blackfan o anemia aneritroblástica es una hipoplasia congénita selectiva de la serie roja, asociada a alteraciones cardiacas, renales, malformaciones en manos, hipertelorismo y retraso en el crecimiento. La presentación de las FLP y pacientes con Anemia de Diamond-Blackfan es del 10.3%. Objetivo: Presentar un reporte de caso de un paciente de 12 años con anemia de Diamond-Blackfan y secuela de FLP de la Clínica Interdisciplinaria de LPH de la Pontificia Universidad Javeriana (Bogotá-Colombia) donde el abordaje interdisciplinario, el casomanejo del comportamiento y el apoyo psicológico brindado a la familia fueron fundamentales para lograr la adherencia, clarificar el diagnóstico y obtener los resultados terapéuticos esperados. Resultados: se logró la adherencia al tratamiento y el éxito de éste en apoyo con otras especialidades, permitiendo un seguimiento de 2 años. Conclusiones: El manejo multidisciplinario e interdisciplinario con especialidades odontológicas, médicas, y de la salud en general para el manejo de pacientes con FLP y síndromes asociados, resulta importante para el éxito en el tratamiento.

As fissura labiopalatina são as malformações craniofaciais congênitas mais comuns. A anemia do Diamante-Blackfan ou anemia aneritroblástica seletiva é uma hipoplasia congênita da série vermelha, associada com o coração, rim, malformações mãos, hipertelorismo e distúrbios retardo de crescimento. A apresentação de Fissura labiopalatina e pacientes com anemia do Diamante-Blackfan é de 10,3% dos casos. Objetivo: Apresentar um caso clínico de um paciente de 12 anos com anemia do Diamante-Blackfan e Fissura labiopalatina sequela do Interdisciplinar Clinic LPH da Pontificia Universidad Javeriana (Bogotá Colômbia), onde a abordagem interdisciplinar, gestão de comportamento e apoio psicológico prestado aos família foram fundamentais para alcançar a adesão a esclarecer o diagnóstico e obter os resultados terapêuticos esperados. Resultado: a adesão ao tratamento e seu sucesso no apoio de outras especialidades de saúde alcançados. Conclusões: O tratamento multidisciplinar e interdisciplinar com especialidades odontológicas, médicas e de saúde em geral para o tratamento de pacientes com FLP e síndromes associadas, é importante para o sucesso do tratamento

Cleft lip and palate (CLP) are the most common congenital craniofacial malformations. The Diamond-Blackfan anemia or congenital erythroblastic anemia is a selective red cell hypoplasia associated with heart, kidney, malformed hands, hypertelorism and stunted alterations. The presentation of Cleft lip and palate in patients with Diamond-Blackfan anemia is 10.3% of cases. Aim: To present a case report of a patient of 12 years with Diamond-Blackfan anemia and Cleft lip and palate sequel from the Interdisciplinary Clinic LPH of the Pontificia Universidad Javeriana (Bogota Colombia) where the interdisciplinary approach, behavior management and psychological support provided to the family were instrumental in achieving the expected therapeutic results. Results: Adherence to treatment and its success in supporting other health specialties during two years is slown. Conclusions: The multidisciplinary and interdisciplinary management with dental specialties, medical, and health in general for the management of patients with FLP and associated syndromes, it is important for successful treatment

Anemia de Diamond Blackfan: un diagnóstico de exclusión / Anemia of Diamond Blackfan: an exclusión diagnosis

La anemia de Diamond Blackfan es un trastorno genético y clínico raro, caracterizado por aplasia eritrocitaria, que clásicamente se manifiesta durante el primer año de vida, típicamente a los 2-3 meses de edad. El 25% de los afectados presentan anemia severa en la infancia, normo o macrocitosis, reticulocitopenia y disminución selectiva de células precursoras eritroides en medula ósea. Es causada por mutaciones que afectan genes que codifican para proteínas ribosomales, inicialmente fue identificado RPS19, que codifica la proteína S19 y las mutaciones a otros genes que codifican proteínas ribosomales. Se presenta el caso de una paciente de cuatro meses de edad quien debutó con anemia severa, quien no mejoró con la suplencia de hierro, vitamina B12, y ácido fólico y además fueron descartadas sistemáticamente causas frecuentes de anemia. El diagnóstico de anemia de Diamond Blackfan en nuestro medio es un diagnóstico de exclusión, dada la dificultad para acceso a pruebas de confirmación genética. Se establece el diagnóstico y se da manejo con glucocorticoides con buena respuesta clínica y paraclínica

The Diamond Blackfan anemia is a rare genetic and clinical disorder. It is characterized by red cell aplasia, which typically occurs during the first year of life, typically during the second to the third month of age. 25% of the patients had severe anemia during their childhood, normo or macrocytosis, reticulocyte and selective decrease in the number of erythroid precursor cells in bone marrow. It is caused by mutations affect genes encoding ribosomal proteins, RPS19 initially was identified, which encodes S19 protein and mutations in other genes encoding ribosomal proteins. We present a case of a four-month-old who debuted with severe anemia in whom the substitution were iron supplements, vitamin B12 and folic acid, showed no improvement and who also were systematically discarded as common causes of anemia. The diagnosis of Diamond Blackfan anemia in our country is a diagnosis of exclusion, given the difficulty of access to genetic confirmation tests. In this article the diagnosis is established and gives management with glucocorticoid with good clinical and paraclinical response

Trasplante alogénico de precursores hematopoyéticos de sangre de cordón umbilical de donante no emparentado: primera experiencia, en tres casos, con donantes del banco público chileno de células de cordón / Allogenic hematopoietic stem cell transplantation with unrelated cord blood: Report of three cases from the Chilean cord blood bank

Public cord blood banks are a source of hematopoietic stem cells for patients with hematological diseases who lack a family donor and need allogeneic transplantation. In June 2007 we started a cord blood bank with units donated in three maternity wards in Santiago, Chile. We report the first three transplants done with cord blood units form this bank. Cord blood units were obtained by intrauterine collection at delivery. They were depleted of plasma and red cells and frozen in liquid nitrogen. Tests for total nucleated cells, CD34 cell content, viral serology, bacterial cultures and HLA A, B and DRB1 were done. Six hundred cord blood units were stored by March 2012. Three patients received allogeneic transplant with cord blood from our bank, two with high risk lymphoblastic leukemia and one with severe congenital anemia. They received conditioning regimens according to their disease and usual supportive care for unrelated donor transplantation until full hematopoietic and immune reconstitution was achieved. The three patients had early engraftment of neutrophils and platelets. The child corrected his anemia and the leukemia patients remain in complete remission. The post-transplant course was complicated with Epstein Barr virus, cytomegalovirus and BK virus infection. Two patients are fully functional 24 and 33 months after transplant, the third is still receiving immunosuppression.