A new analysis of 398 children with a severe form of alpha-1 antitrypsin deficiency (Pi*ZZ) shows that liver damage is common. The study, a systematic review and meta-analysis, found that 41.3% of these children had liver fibrosis, a scarring of the liver. More seriously, 17.3% had cirrhosis, which is advanced scarring that can lead to liver failure. About 10.7% of the children needed a liver transplant.
The researchers also looked at liver enzyme levels, which can be a sign of liver injury. They found that 43% of the children had elevated liver enzymes. However, the rates varied widely across studies, and the authors caution that declining enzyme levels with age do not necessarily mean the liver disease is getting better.
This study highlights that liver problems are a major concern for children with Pi*ZZ alpha-1 antitrypsin deficiency. The findings are based on a large group of children, but the results for cirrhosis and elevated enzymes were not consistent across all studies, which means more research is needed.
For families and doctors, this information underscores the importance of regular liver monitoring in these children. The study authors call for standardized registries to track these patients over time and to identify factors that might influence the course of the disease.