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Diagnosis, Treatment and Clinical Features of Cutaneous Leishmaniasis in Saudi Arabia

  • Hawash, Yousry A. (Laboratory Medicine Department, Faculty of Applied Medical Sciences, Taif University) ;
  • Ismail, Khadiga A. (Laboratory Medicine Department, Faculty of Applied Medical Sciences, Taif University) ;
  • Abdel-Wahab, Maha M. (Parasitology Department, Research Institute of Ophthalmology) ;
  • Khalifa, Mahmoud (Dermatology Department, King Faisal General Hospital)
  • Received : 2018.02.01
  • Accepted : 2018.04.24
  • Published : 2018.06.30

Abstract

Cutaneous leishmaniasis (CL) has been one of the most common parasitic diseases in Saudi Arabia. This study exhibits the clinical features, diagnosis, cytokine profile and treatment of CL patients in Al-Taif province. Ninety CL suspects at a tertiary care general hospital were enrolled in one-year study. Patients were interviewed, clinically-examined, and subjected to laboratory tests: skin scraping smear microscopy, OligoC-TesT commercial PCR (Coris BioConcept) and kinetoplast DNA (kDNA) PCR for Leishmania diagnosis. Interferon-gamma (RayBio; Human $IFN-{\gamma}$ ) and nitric oxide (NO) levels in patients' sera were evaluated before treatment with sodium stibogluconate (pentostam) with 20-day intramuscular drug regimen. Positive rates of microscopy, commercial PCR and kDNA PCR were 74.4%, 95.5% and 100%, respectively. Patients came to hospital mostly in winter (45.0%). CL was frequently exhibited in Saudi patients (78.8%), male gender (70.7%), age <20 years (50.0%), rural-dwellers (75.5%) and patients with travel history (86.6%). Lesion was mostly single ulcer (93.3%), occurred in the face (67.7%). Upon pentostam treatment, 85.1% of ulcers showed rapid healing signs. Levels of $IFN-{\gamma}$ and NO were significantly higher in the healing than the non-healing cases (P<0.001). The kDNA PCR proved more sensitive than microscopy and OligoC-TesT commercial PCR. Our results open perspectives for $IFN-{\gamma}$ use as a biomarker predicting treatment response.

Keywords

References

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