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Deficiencia congénita de complemento: C3 y C4: Comunicación de un caso clínico / Congenital deficiency of the C3 and C4 fractions of complement: a clinical report
Strickler P., Alexis; Lagos K., M. Inés; González M., Benito.
  • Strickler P., Alexis; Hospital Base de Puerto Montt. Servicio de Pediatría. Puerto Montt. CL
  • Lagos K., M. Inés; Hospital Base de Puerto Montt. Servicio de Pediatría. Puerto Montt. CL
  • González M., Benito; Hospital Luis Calvo Mackenna. Unidad de Inmunología. Santiago. CL
Rev. chil. enferm. respir ; 22(2): 119-125, jun. 2006. ilus, tab
Article in Spanish | LILACS | ID: lil-436526
ABSTRACT
Congenital deficiency of C3 fraction of the complement is a very rare condition. Clinically it is expressed as a deficiency of the humoral immunity. We report a case of C3 and C4 deficiency in a 1 year old infant girl. Her parents have a high consanguinity. She presented an acute meningoencephalitis of unknown etiology, and she evolved with severe neurological damage, and recurrent respiratory and urinary bacterial infections, sepsis and osteomielitis, with partial response to antimicrobials. The tests to investigate humoral and cellular immune response (lymphocyte subpopulations, serum immunoglobulins and subtypes of IgG) were normal. The patient had a deficit of C3 and C4, mainly C3, with absence of CH50. Both of her parents had C3 and C4 about 50 percent of normal values, and CH50 slightly under the normal values
RESUMEN
La deficiencia congénita del 3er constituyente del Complemento (C3) es extremadamente rara, y se expresa clínicamente como un defecto de la inmunidad humoral. Se comunica un caso de deficiencia C3 y C4 en un lactante de sexo femenino de 1 año de edad, hijo de padres consanguíneos, que presentó un cuadro de meningoencefalitis aguda de etiología no precisada, con secuela neurológica severa e infecciones bacterianas recurrentes, respiratorias y urinarias, septicemia y osteomielitis, con respuesta parcial a antimicrobianos. El estudio de inmunidad humoral y celular (subpoblaciones linfocitarias, inmunoglobulinas séricas y subclases de IgG) fue normal, demostrándose déficit de C3 y C4 con CH50 ausente en la niña y cifras bajas de C3 y C4, cercanas al 50 por ciento del valor normal en ambos padres
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Immunologic Deficiency Syndromes Type of study: Diagnostic study Limits: Female / Humans / Infant Language: Spanish Journal: Rev. chil. enferm. respir Journal subject: Pulmonary Disease (Specialty) Year: 2006 Type: Article Affiliation country: Chile Institution/Affiliation country: Hospital Base de Puerto Montt/CL / Hospital Luis Calvo Mackenna/CL

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Full text: Available Index: LILACS (Americas) Main subject: Immunologic Deficiency Syndromes Type of study: Diagnostic study Limits: Female / Humans / Infant Language: Spanish Journal: Rev. chil. enferm. respir Journal subject: Pulmonary Disease (Specialty) Year: 2006 Type: Article Affiliation country: Chile Institution/Affiliation country: Hospital Base de Puerto Montt/CL / Hospital Luis Calvo Mackenna/CL