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Seroprotection for Diphtheria, Pertussis, Tetanus and Measles in Children With Nephrotic Syndrome
M Ajay1, Mukta Mantan2, Aashima Dabas1
1Department of Pediatrics, Maulana Azad Medical College and associated Lok Nayak Hospital, University of Delhi, New Delhi, India.
Insights
Children with nephrotic syndrome, particularly steroid-resistant nephrotic syndrome (SRNS), show reduced protection against diphtheria, tetanus, pertussis, and measles. Booster vaccinations are recommended for these children to ensure adequate immunity.
Area of Science:
- Pediatric Nephrology
- Immunology
- Vaccinology
Background:
- Nephrotic syndrome can impact immune function and vaccine response.
- Assessing seroprotective antibody titers is crucial for evaluating vaccine effectiveness in vulnerable pediatric populations.
Purpose of the Study:
- To evaluate seroprotective antibody titers for diphtheria, pertussis, tetanus, and measles in children with nephrotic syndrome post-immunization.
- To compare antibody levels between children with steroid-sensitive nephrotic syndrome (SSNS) and steroid-resistant nephrotic syndrome (SRNS).
Main Methods:
- Antibody titers against diphtheria, pertussis, tetanus, and measles were measured in 76 children (ages 2-18) with nephrotic syndrome in remission.
- Participants included children with SSNS and SRNS who had completed essential childhood immunizations.
Main Results:
- Seroprotection rates were 86.8% for diphtheria, 93.4% for tetanus, 31.6% for pertussis, and 77.6% for measles.
- Children with SRNS exhibited lower seroprotection rates compared to those with SSNS for diphtheria and tetanus.
- A significant portion of children had elapsed more than 5 years since their last vaccination (68.4%).
Conclusions:
- Children with nephrotic syndrome, especially SRNS, have diminished seroprotective antibody titers.
- Booster doses of diphtheria-pertussis-tetanus (DPT) and measles-rubella (MR) vaccines are recommended for children with nephrotic syndrome to maintain adequate immunity.
Objective:
To determine seroprotective titres for diphtheria, pertussis, tetanus and measles in children with nephrotic syndrome who had received essential immunization.
Methods:
Children (2-18 years) with steroid sensitive nephrotic syndrome (SSNS) or steroid-resistant nephrotic syndrome (SRNS) who were in disease remission and had received essential childhood immunization were included. Anti-diphtheria, anti-pertussis, anti-tetanus and anti-measles antibody titres were measured.
Results:
Seventy-six (40 with SSNS; 36 with SRNS) children with mean (SD) age 7.54 (3.96) years were enrolled. The time elapsed since last vaccination was >5 years in 68.4% patients. The seroprotection rates for diphtheria, tetanus, pertussis, and measles were 86.8%, 93.4%, 31.6% and 77.6% respectively; lower in SRNS subjects compared to SSNS. Robust seroprotection titers (1.0 IU/mL) for diphtheria were seen in 23.8% SSNS and 17.9% SRNS; P=0.04, and for tetanus in 69.3% SSNS and 43.8% of SRNS subjects; P=0.03, respectively.
Conclusions:
Children with nephrotic syndrome especially those with SRNS have lower seroprotective titers for diphtheria, tetanus, pertussis and measles, necessitating a booster dose of DPT/DT/Td and MR/MMR.
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