Comparative study of cutaneous leishmaniasis in human immunodeficiency virus (HIV)-infected patients and non-HIV-infected patients in French Guiana

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Abstract
Few data are available on cutaneous leishmaniasis caused by dermotropic species in human immunodeficiency virus (HIV)-infected patients. To describe nine cases of cutaneous leishmaniasis in HIV+ patients and to compare their clinical features and their response to treatment with those of HIV- patients with the forms of leishmaniasis commonly found in French Guiana. A case-control study was carried out between July 1994 and December 2000 in French Guiana. We compared the following variables in nine HIV-infected patients with leishmaniasis and 27 matched controls: clinical type of leishmaniasis, number of lesions, presence of lymphangitis and adenopathy, the rate of recovery after treatment, and recurrence or reinfection. Eight of the HIV-infected patients had localized cutaneous leishmaniasis and one had mucocutaneous leishmaniasis. All of the controls had localized cutaneous leishmaniasis. Leishmania guyanensis was the only species isolated from HIV-infected subjects. HIV-Leishmania coinfected patients had a higher rate of recurrence or reinfection (P < 0.02) and a lower rate of recovery after one treatment cycle with pentamidine (P < 0.02) than did HIV- subjects. The CD4+ lymphocyte counts exceeded 200 mm(-3) in all HIV+ patients at the time of the diagnosis with leishmaniasis. In French Guiana, cutaneous leishmaniasis in moderately immunosuppressed HIV-infected subjects (> 200 CD4+ T cells mm(-3)) is characterized by a higher rate of recurrence or reinfection and is more difficult to treat than that in HIV- subjects.

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