Comparative study between direct microscopy and indirect haemagglutination methods used in diagnosis of urinary schistosomiasis
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Date
2018
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جامعة الشيخ عبدالله البدري
Abstract
Background
Urinary schistosomiasis is a disease caused by infection of people with the parasitic worm
Schistosoma haematobium. These worms live in blood vessels around the infected person’s
bladder and the worm releases eggs which are released in the person’s urine. If the urine
is passed into ponds or lakes, the eggs can hatch and infect people that are washing or
swimming there. Infection can cause blood in the urine and if left untreated can eventually
lead to anaemia, malnutrition, kidney failure, or bladder cancer.
Objectives: To compare between direct microscopy and indirect haeagglutination methods.
Materials and methods: Comparative study, 73 urinary schistosomiasis patients were
involved in it, both urine and blood were collected and examined by appropriate technique
(urine examined by direct microscopy and blood by indirect haemagglutination method).
Direct microscopy:
a. Sensitivity: 100%
b. Specificity: 100%
Indirect haemagglutination method:
1. Sensitivity: 100%
2. Specificity: 95.8%
Discussion: The high sensitivity of directy microscopy is attributed to the intensity of
infection among participants whom were moderately and severely infected with urinary
schistosomiasis.
Conclusion: Both techniques showed high degree of sensitivity and specificity in endemic
area with urinary schistosomiasis.
Recommendations: Further studies are required involving more participants and using more
diagnostic methods and including areas with variant endemicity of urinary schistosomiasis.