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1.
Am J Trop Med Hyg ; 76(1): 58-61, 2007 Jan.
Article in English | MEDLINE | ID: mdl-17255230

ABSTRACT

Thirty-five individuals from endemic areas of Central Brazil (age range, 18-64 years; 19 women) in the chronic phase of Chagas disease, with positive serology and presence of circulating parasites detected by one or more recent positive xenodiagnosis, were selected for this study. Allopurinol (900 mg/d) or placebo was administered in a double-blind clinical trial for 60 days. After codes were broken, 23 had been allocated to the intervention group and 12 to the placebo group. Side effects were observed in 11 patients in the intervention group and in 1 in the placebo group. Seventeen patients in the intervention group and 10 in the placebo group completed the trial. Follow-up was performed by monthly xenodiagnosis and serologic tests every 3 months during the first year and at the end of the trial. Xenodiagnosis remained positive in all 17 of the treated group and in all 10 of the placebo group. Serologic tests were persistently positive in both groups after treatment. We concluded that, at the doses used, allopurinol was not effective to clear, in our region, Trypanosoma cruzi from peripheral blood of infected individuals.


Subject(s)
Allopurinol/therapeutic use , Antiparasitic Agents/therapeutic use , Chagas Disease/drug therapy , Trypanosoma cruzi/drug effects , Adolescent , Adult , Animals , Chronic Disease/drug therapy , Double-Blind Method , Female , Humans , Male , Middle Aged , Treatment Failure
2.
REBLAMPA Rev. bras. latinoam. marcapasso arritmia ; 15(3): 115-119, jul.-set. 2002. graf
Article in Portuguese | LILACS | ID: lil-362338

ABSTRACT

Os autores relatam o caso de um paciente com cardiopatia chagásica crônica e que, por apresentar fibrilação atrial, preenchidas as condições para a indicação, foi submetido a cardioversão elétrica, com vistas à restauração do ritmo sinusal. O objetivo foi alcançado, porém, ocorreu o aparecimento de doença do nó sinusal sintomática, o que motivou o implante de marcapasso cardíaco artificial endocavitário. Desenvolveu quadro clínico de endocardite infecciosa, sendo diagnosticada trombose gigante infectada no cabo-eletrodo. Foi submetido a cirurgia com circulação extracorpórea para exérese da mesma, tratado com antibióticos e com implante de marcapasso epimiocárdico. Desenvolveu nefrotoxicidade atribuída a um ou mais dos antibióticos, da qual se recuperou espontaneamente, com base em dados laboratoriais. Enfatizam os autores a necessidade de prudência na indicação de restauração do ritmo sinusal em casos de fibrilação atrial, principalmente quando a cardiopatia de base é a chagásica, na qual o comprometimento do nó sinusal é freqüente e, muitas vezes, inaparente.


Subject(s)
Humans , Male , Middle Aged , Chagas Disease/etiology , Atrial Fibrillation/therapy , Amiodarone , Aspirin , Midazolam , Pacemaker, Artificial , Sick Sinus Syndrome , Time Factors
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