Author(s): Klion AD, Ottesen EA, Nutman TB
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Abstract Although successful treatment of loiasis with diethylcarbamazine (DEC) has been reported, little is known about the long-term success rate of therapy or the predisposing factors for treatment failure. To address these questions, 32 patients were followed 2-15 years (median, 4.5) after DEC treatment; all had acquired infection while expatriate visitors to endemic areas of Africa. Using a strict definition of successful treatment, 12 (38\%) appeared to be cured after one course of therapy and 5(16\%) after two courses. Of the remaining 15 patients, 3 continued to be symptomatic despite more than four courses of treatment. Although 12 of the 17 patients who relapsed did so within 1 year of treatment, several had relatively long asymptomatic periods (2-8 years). There was no predictive difference in clinical or laboratory parameters (including eosinophilia and specific filarial serology) between patients requiring one or more courses of therapy.
This article was published in J Infect Dis
and referenced in Journal of Tropical Diseases & Public Health