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Rev. Soc. Bras. Med. Trop ; 40(5): 546-549, out. 2007. tab
Article in Portuguese | LILACS | ID: lil-467014

ABSTRACT

O episódio reacional tipo 1 ou reação reversa é ocorrência inflamatória aguda que atinge a pele e nervos periféricos, encontrada em até 30 por cento dos pacientes com hanseníase, sendo causa comum de incapacidade física. Fatores de risco associados incluem uso de poliquimioterapia e infecções virais. Neste estudo, foram avaliados 620 pacientes com hanseníase. Reação reversa foi diagnosticada em 121 (19,5 por cento) casos, sendo mais freqüente nos indivíduos borderlines (48 por cento). Início da poliquimioterapia foi considerado fator de risco para reação reversa, com 52 por cento dos casos apresentando o primeiro episódio neste momento. Neurite foi documentada em 73 por cento dos casos. A presença de vírus B ou C da hepatite foi documentada em 9 por cento de 55 pacientes com reação reversa e em nenhum dos 57 pacientes sem reação (p = 0, 026; teste exato de Fisher), sugerindo possível papel destes agentes como fatores de risco para desenvolvimento de reação reversa na hanseníase.


Type 1 reaction or reversal reaction is an acute inflammatory episode in the skin and peripheral nerves that is found in up to 30 percent of leprosy patients and commonly causes physical disabilities. Multidrug chemotherapy and viral infections are associated risk factors. In this study, 620 leprosy patients were evaluated. Reversal reactions were diagnosed in 121 cases (19.5 percent) and were most frequently found in borderline patients (48 percent). Starting on multidrug chemotherapy was considered to be a risk factor for reversal reaction: 52 percent of the cases presented their first episode at this time. Neuritis was found in 73 percent of the cases. The presence of hepatitis B or C virus was documented in 9 percent of the 55 patients with reversal reaction, while it was not detected in any of the 57 patients without reaction (p = 0.026, Fisher’s exact test). This suggests that these agents may have a role as risk factors for developing reversal reactions.


Subject(s)
Adult , Female , Humans , Male , Acute-Phase Reaction/etiology , Hepatitis B/complications , Hepatitis C/complications , Leprostatic Agents/administration & dosage , Leprosy/complications , Acute-Phase Reaction/diagnosis , Case-Control Studies , Hepatitis B/diagnosis , Hepatitis C/diagnosis , Leprostatic Agents/adverse effects , Leprosy/drug therapy , Retrospective Studies , Risk Factors
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