alexa Molecular Study Of Cytomegalovirus Infection Among Children With End Stage Renal Diseases Undergoing Dialysis; Pilot Study
ISSN: 2161-0703

Journal of Medical Microbiology & Diagnosis
Open Access

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International Conference on Medical and Clinical Microbiology
July 03-04, 2017 Bangkok, Thailand

Sameh Salama and Maysaa EL Sayed Zaki
ALazhar University, Egypt
Mansoura University, Egypt
Posters & Accepted Abstracts: J Med Microb Diagn
DOI: 10.4172/2161-0703-C1-009
Abstract
Cytomegalovirus is considered as an opportunistic infection affecting immunocompromized patients. Children with end stage renal diseases requiring dialysis is among affected population by this virus. The aim of the present study was to detect and compare the seroprevalence of CMV and CMV antigen pp65 with real time polymerase chain reaction (PCR) among children with end stage renal diseases undergoing dialysis. The study is a prospective case - control study. The forty one patients included in the studied are registered in the hospital for regular dialysis waiting for renal transplantation. The study included forty one healthy controls with same age and gender distribution. Blood samples were obtained from studied children and subjected for determination of specific immunoglobulin M and G for CMV (IgM-CMV, IgG-CMV) by Elecys system and CMV-DNA determination by real time polymerase chain reaction (PCR) and for PP65 antigenaemia test by light diagnostic CMVpp65. CMV-IgM was significantly detected frequently (P=0.0001) in 12.2% of the patients and in 2.4% of the control children. Moreover, IgG-CMV was significantly more frequently detected in patients (P=0.0001) than in control (90.2%&31.7% respectively). CMV-DNA was significantly (P=0.0001) detected in 12 patients (29.3%) compared to the control (2.4%), while CMVpp65 was detected among 4 children (9.8%) compared to one child in the control group. The comparison between IgM-CMV and real time PCR revealed that 30.7% of positive samples by PCR had positive IgM-CMV, while IgGCMV was associated with 84.6% of positive PCR. CMVpp65 correctly identified all negative samples compared to PCR, while the majority of negative PCR was also negative for IgM-CMV (98.6%). Moreover, all negative children for CMVpp65 was also negative by PCR (100%) For the validity of different CMV markers, IgG-CMV was the most sensitive test (84.7%), CMVpp65 was the most specific test 100%. From this study we concluded that CMV is a common viral infection among children with end stage renal diseases requiring dialysis. The diagnostic performance of real time PCR is the gold standard technique in diagnosis of this infection. CMVpp65 antigenemia is a specific accurate test for laboratory diagnosis however, it lacks sensitivity. Specific IgG for CMV is good screening diagnostic test.
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