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Inicio Revista Colombiana de Reumatología Rituximab en población pediátrica: experiencia en el tratamiento de enfermedad...
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Vol. 19. Núm. 4.
Páginas 201-207 (Diciembre 2012)
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Vol. 19. Núm. 4.
Páginas 201-207 (Diciembre 2012)
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Rituximab en población pediátrica: experiencia en el tratamiento de enfermedades reumatológicas, en un hospital infantil de Medellín, Colombia
Rituximab in pediatric population: Experience of rheumatic diseases treatment in a children's hospital in Medellín, Colombia
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3423
Carolina Muñoz Grajales1,
Autor para correspondencia
carito_mg_sp@yahoo.com

Correspondencia:.
, Mónica Patricia Velásquez Mendez2
1 Sección de Reumatología. Departamento de Medicina Interna. Hospital Universitario de San Vicente Fundación. Medellín. Colombia
2 Departamento de Pediatría. Sección de Reumatología. Hospital Infantil. Hospital Universitario de San Vicente Fundación. Medellín. Colombia
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Resumen
Introducción

En niños, diferentes series han encontrado que rituximab es eficaz y seguro en trombocitopenia y anemia hemolítica autoinmunes; no obstante, los estudios en lupus eritematoso sistémico (LES) de inicio temprano, dermatomiositis juvenil (DMJ) y en vasculitis sistémicas son escasos.

Objetivo y métodos

Describir la respuesta clínica a rituximab en pacientes ≤18 años con enfermedad reumatológica, evaluados en un hospital infantil de Medellín, Colombia. Serie de casos en la que se revisó la historia clínica de pacientes con LES, síndrome antifosfolípido, DMJ y vasculitis sistémicas que recibieron rituximab entre enero de 2006 y julio de 2011.

Resultados

En el tiempo establecido 19 pacientes ≤18 años recibieron rituximab. La indicación más frecuente fue nefritis lúpica (NL) (47,4%), seguida por trombocitopenia autoinmune (26,3%). En pacientes con NL se lograron reducir los esteroides en 58% y el control de la proteinuria en la mayoría de los casos. En trombocitopenia o anemia hemolítica autoinmune se observó respuesta adecuada en el 83%. En los casos de vasculitis se encontró respuesta a la terapia pero la paciente con DMJ fue refractaria. No se presentaron eventos adversos.

Conclusiones

con rituximab se observó mejoría en anemia hemolítica asociada a LES y trombocitopenia asociada a LES o síndrome antifosfolípido, que no habían respondido a terapia de primera línea. Aunque en NL mostró efecto clínico favorable y permitió ahorro de dosis de esteroides, se requieren estudios prospectivos para evaluar la utilidad en pacientes con NL ≤18 años.

Palabras clave:
Rituximab
niños
enfermedad reumatológica
Summary
Introduction

Different series have found that rituximab is effective and safe in thrombocytopenia and autoimmune hemolytic anemia in children, however studies in early onset systemic lupus erythematosus (SLE), juvenile dermatomyositis and vasculitis are scarce.

Objective and Methods

Describe the clinical response to rituximab in patients ≤18 years with rheumatic disease, evaluated in a pediatric hospital in the city of Medellín, Colombia. Cross sectional study in which we reviewed the medical records of patients with SLE, antiphospholipid syndrome, vasculitis and juvenile dermatomyositis that receiving rituximab between january 2006 and july 2011.

Results

19 patients ≤18 years received rituximab. The most common indication was lupus nephritis (LN) (47.4%), followed by autoimmune thrombocytopenia (26.3%). In patients with LN steroids was reduced by 58% and control of proteinuria in most cases. In autoimmune hemolytic anemia and thrombocytopenia adequate response was observed in 83%. The case of vasculitis was found response to therapy and the patient with juvenile dermatomyositis was refractory. No adverse events were reported.

Conclusions

improvement was observed with rituximab in SLE-associated hemolytic anemia and thrombocytopenia associated with SLE and antiphospholipid syndrome, who had not responded to first-line therapy. Although LN showed favorable clinical effect and saving allowed dose steroids, prospective studies are required to evaluate utility in patients with LN ≤18.

Key words:
Rituximab
children
rheumatic disease
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Los autores declaran no presentar ningún conflicto de interés al momento de la redacción del manuscrito.

Copyright © 2012. Asociación Colombiana de Reumatología
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