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Immunizations in children on PD: current guidelines and recommendations
B A Fivush1, S L Furth, A M Neu
1Division of Pediatric Nephrology, Johns Hopkins University, Baltimore, Maryland, USA.
Insights
Pediatric patients on chronic peritoneal dialysis (CPD) show variable antibody responses to standard vaccines, potentially reducing protection against serious diseases. Monitoring antibody levels and considering adjusted vaccination strategies are crucial for ensuring adequate immunity in these vulnerable children.
Area of Science:
- Pediatric Nephrology
- Immunology
- Vaccinology
Background:
- Antibody responses to immunizations in pediatric patients undergoing chronic peritoneal dialysis (CPD) are inconsistent.
- The incidence of vaccine-preventable diseases in this population is unknown, but protection may be compromised.
- Potential reasons for suboptimal responses include lower seroconversion rates and rapid antibody decline due to dialysis.
Purpose of the Study:
- To evaluate the antibody responses to recommended vaccines in pediatric patients on CPD.
- To identify specific vaccines with potentially reduced efficacy in this patient group.
- To highlight the need for monitoring and potential adjustments in vaccination strategies.
Main Methods:
- Measurement of antibody responses to standard immunizations.
- Analysis of seroconversion rates and antibody titers.
- Review of vaccine efficacy in pediatric CPD patients.
Main Results:
- Variable antibody responses observed in pediatric CPD patients.
- Specific vaccines like hepatitis B, Hib, MMR, and pneumococcal may elicit suboptimal immune responses.
- Concerns regarding lower antibody titers and rapid decline in antibody levels.
Conclusions:
- Pediatric CPD patients may have inadequate protection against vaccine-preventable diseases.
- Close monitoring of vaccine response through antibody titers is essential.
- Strategies such as increased dosage, altered schedules, and adjuvants may improve vaccination effectiveness.
Abstract:
Antibody responses to currently recommended immunizations in pediatric patients on chronic peritoneal dialysis (CPD) have been measured and the results have been variable. Although the incidence of vaccine-preventable disease in pediatric CPD patients is not known, it appears that protection from these diseases may be reduced. The explanation for the abnormal response to vaccines might include lower seroconversion rates in these patients, with lower antibody titers or levels. Also a rapid decline of antibody levels or titers may occur as a consequence of continuous peritoneal dialysis. Specific vaccines that may result in a less than optimal response in pediatric CPD patients include hepatitis B virus, hemophilus influenza type b, measles, mumps, rubella and pneumococcal vaccine. Patients who receive these immunizations should be monitored closely. Increased vaccine dosage, reinforced vaccination schedules, as well as concomitantly administered adjuvant immuno-modulators may play an important role in more effective vaccination of pediatric CPD patients. It is important that vaccine response be monitored in these patients by measuring specific antibody titers or levels to ensure adequate protection from vaccine-preventable illness.