Revista da Sociedade Brasileira de Medicina Tropical (Oct 2007)

Associação de metemoglobinemia e deficiência de glicose-6-fosfato desidrogenase em pacientes com malária tratados com primaquina Association of methemoglobinemia and glucose-6-phosphate dehydrogenase deficiency in malaria patients treated with primaquine

  • Marli Stela Santana,
  • Marcos Antonio Ferreira da Rocha,
  • Ana Ruth Lima Arcanjo,
  • José Felipe Jardim Sardinha,
  • Wilson Duarte Alecrim,
  • Maria das Graças Costa Alecrim

DOI
https://doi.org/10.1590/S0037-86822007000500008
Journal volume & issue
Vol. 40, no. 5
pp. 533 – 536

Abstract

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Este estudo teve como objetivo verificar a ocorrência de metemoglobinemia em indivíduos deficientes da glicose-6-fosfato desidrogenase durante o tratamento da infecção malárica com primaquina. Foram selecionados pacientes com diagnóstico para malária por Plasmodium vivax ou mista V+F (Plasmodium vivax + Plasmodium falciparum), Grupo 1: com 74 indivíduos com diagnóstico clínico de metemoglobinemia e Grupo 2: 161 indivíduos sem diagnóstico clínico de metemoglobinemia. Quanto à deficiência da G6PD, nos Grupos 1 e 2, houveram 51,3% (38) e 8,7% (14) de indivíduos enzimopênicos, respectivamente, demonstrando através de tais dados, significância estatística na associação com a metemoglobinemia somente nos indivíduos do Grupo 1 (pThis study had the aim of investigating occurrences of methemoglobinemia among individuals with glucose-6-phosphate dehydrogenase deficiency during treatment for malaria infection using primaquine. Patients with a diagnosis of malaria caused by Plasmodium vivax or the V+F mixture (Plasmodium vivax + Plasmodium falciparum) were selected. Group 1 consisted of 74 individuals with a clinical diagnosis of methemoglobinemia and Group 2 consisted of 161 individuals without a clinical diagnosis of methemoglobinemia. The glucose-6-phosphate dehydrogenase deficiency rates (numbers of enzymopenic individuals) in Groups 1 and 2 were 51.3% (38) and 8.7% (14) respectively. These data demonstrated a statistically significant association with methemoglobinemia only among the individuals in Group 1 (p<0.05). Investigation of the relationship between methemoglobinemia and glucose-6-phosphate dehydrogenase deficiency showed that there was a possible association such that enzymopenic individuals may develop methemoglobinemia more frequently.

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