[Newborn screening program for spinal muscular atrophy]

Heike Kölbel1, Katharina Vill2, Oliver Schwartz3

  • 1Klinik für Kinderheilkunde, Kinderklinik 1/Neuropädiatrie, Universitätsmedizin Essen (UME), Hufelandstr. 55, Essen, Deutschland. heike.koelbel@uk-essen.de.

Der Nervenarzt
|October 15, 2021
PubMed

Insights

Germany

Area of Science:

  • Genetics
  • Neurology
  • Pediatrics

Background:

  • Germany is implementing a newborn screening program for 5q-spinal muscular atrophy (SMA) in late 2021.
  • Advances in targeted therapies offer new treatment options for all SMA patients.

Purpose of the Study:

  • To present insights from pilot newborn screening projects for 5q-SMA in Germany.
  • To discuss the advantages and disadvantages of implementing a nationwide SMA screening program.

Main Methods:

  • Newborn screening for 5q-SMA utilizes molecular genetic analysis of dried blood spots to detect homozygous deletion of SMN1 exon 7.
  • Confirmation diagnostics involve a second blood sample to determine SMN2 copy numbers.

Main Results:

  • Pilot projects in Germany provided valuable data on the feasibility and outcomes of SMA newborn screening.
  • Key advantages and disadvantages of the screening approach were identified and analyzed.

Conclusions:

  • Early detection through newborn screening enables timely intervention for 5q-SMA.
  • Treatment should be managed by neuropediatric departments experienced in 5q-SMA, ensuring access to all therapeutic options.
  • Initiating treatment within the first month of life is crucial for optimal outcomes in infants with 5q-SMA.
Abstract