Renal involvement in visceral leishmaniasis

Area of Science:

• Nephrology
• Infectious Diseases
• Parasitology

Background:

• Visceral leishmaniasis (kala-azar) is a serious parasitic disease.
• Renal involvement in visceral leishmaniasis is not well-characterized.
• Early detection and understanding of kidney impact are crucial for patient management.

Purpose of the Study:

• To investigate the prevalence and nature of renal involvement in patients with visceral leishmaniasis.
• To assess the reversibility of renal abnormalities after treatment.

Main Methods:

• Prospective study of 50 patients diagnosed with visceral leishmaniasis.
• Laboratory tests included urinalysis and 24-hour urinary protein excretion.
• Renal histology was examined in a subset of patients.
• Acid-load tests were performed before therapy.

Main Results:

• 51% of patients exhibited proteinuria, hematuria, or pyuria.
• Elevated 24-hour urinary protein excretion (below 1g/24 hours) was seen in 57% of patients.
• Tubulo-interstitial involvement was present in all 7 patients with renal histology.
• Mild proliferative glomerulonephritis was found in 5 of 7 patients.
• Abnormal acid-load tests were noted in 12 of 18 patients pre-therapy.

Conclusions:

• Renal involvement in visceral leishmaniasis is common and characterized by mild tubulo-interstitial changes and glomerulonephritis.
• Laboratory abnormalities suggestive of kidney dysfunction tend to resolve within one month post-treatment.
• Kidney function appears to be reversible with successful cure of the leishmanial infection.