TY - JOUR
T1 - A case-control study on the association between intestinal helminth infections and treatment failure in patients with cutaneous leishmaniasis
AU - Martínez, Dalila Y
AU - Llanos-Cuentas, Alejandro
AU - Dujardin, Jean-Claude
AU - Polman, Katja
AU - Adaui, Vanessa
AU - Boelaert, Marleen
AU - Verdonck, Kristien
N1 - FTX; DOAJ; OACHECK; (CC BY-NC-ND 4.0); © The Author(s) 2020. Published by Oxford University Press on behalf of Infectious Diseases Society of America.
PY - 2020
Y1 - 2020
N2 - Background: Endemic regions of cutaneous leishmaniasis (CL) and intestinal helminthiasis overlap. CL treatment with systemic pentavalent antimonial drugs (Sb5+) fails in 10%-30% of patients. The study objective was to assess the etiological role of intestinal helminthiasis in CL treatment failure.Methods: An unmatched case-control study was done in 4 CL treatment sites in Peru in 2012-2015. Cases were CL patients with Sb5+ treatment failure; controls were CL patients with Sb5+ treatment success. Patients with a parasitologically confirmed CL diagnosis who had received supervised Sb5+ treatment and could be classified as cases or controls were eligible. The main exposure variables were intestinal helminthiasis and strongyloidiasis, diagnosed through direct examination, rapid sedimentation, Baermann, Kato-Katz, or agar culture of stool samples. Additional exposure variables were other infections (HIV, human T-lymphotropic virus 1, tuberculosis, hepatitis B, intestinal protozoa) and noninfectious conditions (diabetes, renal insufficiency, and immunosuppressive medication). Age, gender, CL history, probable exposure place, and Leishmania species were treated as potential confounders in multiple logistic regression.Results: There were 94 case and 122 control subjects. Overall, infectious and noninfectious comorbidities were frequent both among cases (64%) and controls (71%). The adjusted odds ratio (OR) for the association between any intestinal helminth infection and CL treatment failure was 0.65 (95% confidence interval [CI], 0.30-1.38), and the adjusted OR for the association between strongyloidiasis and CL treatment failure was 0.34 (95% CI, 0.11-0.92).Conclusions: In the Peruvian setting, high Sb5+ treatment failure rates are not explained by intestinal helminthiasis. On the contrary, strongyloidiasis had a protective effect against treatment failure.
AB - Background: Endemic regions of cutaneous leishmaniasis (CL) and intestinal helminthiasis overlap. CL treatment with systemic pentavalent antimonial drugs (Sb5+) fails in 10%-30% of patients. The study objective was to assess the etiological role of intestinal helminthiasis in CL treatment failure.Methods: An unmatched case-control study was done in 4 CL treatment sites in Peru in 2012-2015. Cases were CL patients with Sb5+ treatment failure; controls were CL patients with Sb5+ treatment success. Patients with a parasitologically confirmed CL diagnosis who had received supervised Sb5+ treatment and could be classified as cases or controls were eligible. The main exposure variables were intestinal helminthiasis and strongyloidiasis, diagnosed through direct examination, rapid sedimentation, Baermann, Kato-Katz, or agar culture of stool samples. Additional exposure variables were other infections (HIV, human T-lymphotropic virus 1, tuberculosis, hepatitis B, intestinal protozoa) and noninfectious conditions (diabetes, renal insufficiency, and immunosuppressive medication). Age, gender, CL history, probable exposure place, and Leishmania species were treated as potential confounders in multiple logistic regression.Results: There were 94 case and 122 control subjects. Overall, infectious and noninfectious comorbidities were frequent both among cases (64%) and controls (71%). The adjusted odds ratio (OR) for the association between any intestinal helminth infection and CL treatment failure was 0.65 (95% confidence interval [CI], 0.30-1.38), and the adjusted OR for the association between strongyloidiasis and CL treatment failure was 0.34 (95% CI, 0.11-0.92).Conclusions: In the Peruvian setting, high Sb5+ treatment failure rates are not explained by intestinal helminthiasis. On the contrary, strongyloidiasis had a protective effect against treatment failure.
U2 - 10.1093/ofid/ofaa155
DO - 10.1093/ofid/ofaa155
M3 - A1: Web of Science-article
C2 - 32494582
SN - 2328-8957
VL - 7
JO - Open Forum Infectious Diseases
JF - Open Forum Infectious Diseases
IS - 5
M1 - ofaa155
ER -