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Liver involvement in alpha1-antitrypsin-deficient phenotypes PiSZ and PiMZ

K Pittschieler1

  • 1Department of Paediatrics, Regional Hospital, Bozen, Italy. pediat@asbz.provincia.bz.it

Acta Paediatrica (Oslo, Norway : 1992)
|April 16, 2002
PubMed

Insights

Children with alpha-1-antitrypsin deficiency (PiSZ and PiMZ genotypes) and infantile liver issues showed normal liver enzymes long-term. Early liver involvement in these children is typically benign and self-limiting.

Area of Science:

  • Pediatric Hepatology
  • Genetic Liver Diseases
  • Pulmonology

Background:

  • Alpha-1-antitrypsin deficiency (AATD) is a genetic disorder that can lead to liver disease, particularly in infants.
  • Infantile liver involvement in AATD is a concern for long-term health outcomes.
  • The PiSZ and PiMZ genotypes represent carriers of the AATD gene.

Purpose of the Study:

  • To assess the long-term liver health of children with PiSZ and PiMZ genotypes who experienced liver involvement in infancy.
  • To determine if infantile liver issues in AATD carriers are associated with persistent liver damage.

Main Methods:

  • Longitudinal study following children with PiSZ and PiMZ genotypes.
  • Assessment of liver enzyme levels at 5 and 10 years of age.
  • Counselling provided to families regarding smoking cessation.

Main Results:

  • All evaluated PiSZ and PiMZ children demonstrated normal liver enzyme levels at 5 and 10 years of age.
  • The majority of families successfully ceased smoking after counseling.
  • No evidence of persistent liver damage was observed in the long term.

Conclusions:

  • Transient liver involvement in infancy among children with PiSZ and PiMZ genotypes is generally a benign, self-limiting condition.
  • Early liver issues in AATD carriers do not appear to predict long-term hepatic complications.
  • Smoking cessation counseling was effective in reducing exposure for most families.
Abstract

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