Clinical genetic testing of periodic fever syndromes

Annalisa Marcuzzi1, Elisa Piscianz, Giulio Kleiner

  • 1Laboratory of Immunopathology, Institute for Maternal and Child Health (IRCCS) "Burlo Garofolo", 34137 Trieste, Italy. marcuzzi@burlo.trieste.it

Insights

Genetic diagnosis for periodic fever syndromes (PFSs) aids accurate identification and treatment. Focusing genetic testing on specific clinical questions improves diagnostic success rates for these autoinflammatory diseases.

Area of Science:

  • Genetics
  • Immunology
  • Rare Diseases

Background:

  • Periodic fever syndromes (PFSs) are a diverse group of autoinflammatory diseases with overlapping clinical features, complicating differential diagnosis.
  • Current diagnostic challenges include a lack of universal recommendations and a significant proportion of patients remaining without a genetic diagnosis even after extensive testing.
  • Accurate and early diagnosis through molecular analysis of causative genes is crucial for improving patient quality of life and enabling targeted treatment.

Purpose of the Study:

  • To evaluate the effectiveness of genetic diagnosis in improving the diagnostic system for periodic fever syndromes.
  • To determine how advancements in diagnostic approaches can increase the success rate of PFS diagnosis.
  • To discuss the utility of genetic testing in managing patients with suspected autoinflammatory conditions.

Main Methods:

  • Review and discussion of the current landscape of genetic diagnosis for periodic fever syndromes.
  • Exploration of the potential and limitations of next-generation sequencing (NGS) approaches in PFS diagnosis.
  • Analysis of the role of bioinformatics in interpreting high-throughput genetic data.

Main Results:

  • Molecular genetic analysis offers a pathway to early and accurate diagnosis, leading to improved patient outcomes.
  • Despite advancements like NGS, interpreting complex genetic findings for clinical application remains a challenge.
  • The successful application of genetic testing is contingent on its targeted use to address specific clinical questions.

Conclusions:

  • Genetic diagnosis is a valuable tool for improving the management of periodic fever syndromes.
  • A strategic approach, focusing genetic testing on clear clinical indications, is essential for maximizing diagnostic yield.
  • Future advancements in genetic analysis should be guided by clinical relevance to ensure tangible benefits for physicians and patients.

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