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Experience with New World cutaneous leishmaniasis in travelers

https://doi.org/10.1067/S0190-9622(03)01576-7Get rights and content

Abstract

In recent years, New World cutaneous leishmaniasis has been seen at a higher incidence among returning Israeli travelers. Leishmania braziliensis and related species cause unsightly cutaneous lesions possibly complicated with a mucosal disease. A total of 12 patients with New World cutaneous leishmaniasis were treated in our clinic, 11 of whom (92%) acquired the disease in the Bolivian Amazon Basin. Five (42%) had regional lymphadenopathy in addition to cutaneous lesions. Polymerase chain reaction was performed for 8 patients to identify the causative Leishmania species. In all, 9 patients (75%) were cured by a single course, and 3 (25%) after an additional course of intravenous sodium stibogluconate. The treatment was well tolerated clinically. Laboratory abnormalities, mainly elevation of liver enzymes (58%), were reversible. We concluded that polymerase chain reaction is a useful tool in establishing the species diagnosis of leishmaniasis and that sodium stibogluconate appears to be a safe and effective treatment for L braziliensis infection.

Section snippets

Patient population

The patients described herein were travelers referred to the dermatology clinic or to the Center for Geographic Medicine at Sheba Medical Center, Tel Aviv, Israel. New World cutaneous leishmaniasis was defined as (1) presence of cutaneous lesions (ulcers, nodules, papules) compatible with leishmaniasis; (2) history of recent travel to the Americas (New World); and (3) biopsy specimen or smear showing Leishmania amastigotes within the dermal infiltrate.

Polymerase chain reaction

PCR was performed for cases that occurred

Results

Between the years 1998 and 2001, 12 patients with New World cutaneous leishmaniasis were examined in the study. The clinical and epidemiologic data of patients are shown in Table II. Mean age was 25 years (range: 23-29); incubation period was 1.7 months (range: 1-3); the patients had a mean of 2.5 cutaneous lesions with mean lesion size of 2.5 cm (range: 0.5-6); and distribution of the lesions was 40% on the upper aspect of limbs, 32% on the lower aspect of limbs, 12% on the head and neck, and

Discussion

Travel to developing countries has become more common in recent years, increasing physicians' encounter with imported tropical diseases.9 In the past 4 years, 12 patients presented at our clinic with imported L viannia braziliensis infection. In 11 of the patients (92%), infection was attributed to travel to the Amazon Basin in Bolivia. Although the tropical Amazonian region of Bolivia is known to be endemic to L viannia braziliensis,10, 11 it has never been mentioned as a high-risk area for

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    Citation Excerpt :

    This lengthy treatment course is associated with significant adverse events.4,5 In addition, our past experience has been that this course proved effective in achieving clinical cure in only 71% to 77% of cases.3,6,7 The role of liposomal amphotericin B (L-AmB) in the treatment of New World CL has not been studied systematically with different regimens (5-10 days) and follow-up periods ranging from 1 to 36 months.8-13

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Deutsche Forschungsgemeinsschaft enabled the laboratory work by funding research on the epidemiology of leishmaniasis.

Conflicts of interest: None identified.

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