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Related Experiment Videos

Quality control system for mass screening in Japan.

H Naruse1, A Tsuji, E Suzuki

  • 1Quality Control Center for Mass-screening in Japan, Tokyo, Japan.

The Southeast Asian Journal of Tropical Medicine and Public Health
|May 24, 2005
PubMed
Summary

Japan pioneered a national quality control system for neonatal screening in 1977. This system ensures accurate testing and identifies subtle abnormalities, improving infant health outcomes nationwide.

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Area of Science:

  • Biochemistry
  • Public Health
  • Pediatrics

Background:

  • Japan established the first nationwide quality control (QC) system for neonatal screening in 1977.
  • This system differs significantly from standard clinical chemistry QC, focusing on neonatal screening accuracy and detection of mild abnormalities.

Purpose of the Study:

  • To evaluate the accuracy of neonatal screening tests.
  • To assess the capability of screening laboratories in detecting subtle abnormalities.
  • To improve the overall performance of nationwide neonatal screening laboratories.

Main Methods:

  • Implementation of an inter-laboratory QC survey to identify underperforming laboratories.
  • Establishment of nationwide consensus on cutoff levels for tested materials in cooperation with relevant medical societies.

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  • Evaluation of the quality of screening reagents and blood collection filter paper.
  • Development of new methods for evaluating standard compounds used in screening tests.

    • Main Results:

    • The inter-laboratory QC survey effectively identified laboratories needing improvement.
    • Setting low cutoff levels, in collaboration with medical societies, helped minimize false negatives.
    • Quality control extended to essential reagents and blood collection materials.

    Conclusions:

    • Japan's comprehensive National QC System for Neonatal Screening enhances testing accuracy and abnormality detection.
    • Continuous improvement of screening laboratories is achieved through systematic evaluation and consensus building.
    • The system's collaborative approach and focus on reagent quality contribute to reliable neonatal screening.