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Related Experiment Videos

[Mucoviscidosis screening with immunoreactive trypsin].

E Eber1, H Ellemunter, H Engele

  • 1Universitäts-Kinderklinik, Graz.

Wiener Klinische Wochenschrift
|January 1, 1992
PubMed
Summary
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Newborn screening using immunoreactive trypsin (IRT) effectively identifies cystic fibrosis (CF) patients. Early detection through IRT measurements facilitates timely treatment and genetic counseling for affected infants.

Area of Science:

  • Biochemistry
  • Genetics
  • Pediatrics

Context:

  • Neonatal screening programs are crucial for early detection of genetic disorders.
  • Cystic Fibrosis (CF) is a significant genetic disease requiring early intervention.
  • Immunoreactive trypsin (IRT) is a biomarker used in newborn screening for CF.

Purpose:

  • To evaluate the effectiveness of immunoreactive trypsin (IRT) screening in Austrian newborns for cystic fibrosis (CF).
  • To compare the outcomes of direct and two-step screening strategies for CF detection.
  • To determine the incidence of CF in Austrian newborns based on IRT screening data.

Summary:

  • Over 49,000 IRT measurements were performed on Austrian newborns.
  • A direct strategy identified 11 CF patients from 101 infants with elevated IRT.

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  • A two-step strategy identified 7 CF patients from 152 infants with repeat elevated IRT.
  • Two false-negative cases were noted, highlighting the importance of clinical correlation.
  • Preliminary results suggest a CF incidence of 1 in 2460 newborns in Austria.

    • Impact:

    • IRT screening demonstrates reliability in identifying CF patients during the newborn period.
    • Early identification enables prompt initiation of treatment, improving patient outcomes.
    • Screening facilitates genetic counseling for families with CF diagnoses.
    • The findings support the continued implementation and refinement of IRT screening programs for CF.