Regular checks sustain high participation for children with inherited cancer risk
Children born with a pathogenic variant in the TP53 gene, known as Li-Fraumeni syndrome, have a markedly increased risk of developing various types of cancer, often at a young age. Therefore, they undergo regular surveillance from early childhood, typically every three months. In a new study, researchers examined how well such surveillance programs function in practice and what consequences they…
Children with a genetic condition called Li-Fraumeni syndrome, caused by a TP53 gene mutation, face a high risk of developing cancer at a young age. To monitor these children, a surveillance program involving regular clinical examinations, abdominal ultrasounds, and urine testing is implemented. A recent study published in Genetics in Medicine assessed the effectiveness of this surveillance program for 37 children in Sweden, either diagnosed with the mutation or having a 50% chance of carrying it.
The study, known as SWEP53, found that adherence to the surveillance protocol was high, ranging from 77% to 97% over three years. Children generally continued with clinical examinations and ultrasounds, but repeated urine sampling was more challenging due to the time-consuming nature of 24-hour urine collection. While the surveillance program was effective, it did lead to two cancer diagnoses, including one detected through the surveillance process itself.
Additionally, 35% of children had findings requiring further investigation, but all turned out to be benign. Researchers emphasize the importance of understanding that such findings are common during intensive surveillance but are typically harmless. The study's results may help inform future national and international guidelines for similar programs, but longer follow-up is necessary for a complete assessment of their impact.
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