Screening for late-onset Pompe disease in Poland

Acta Neurol Scand. 2019 Oct;140(4):239-243. doi: 10.1111/ane.13133. Epub 2019 Jun 18.


Objectives: We aimed to screen for late-onset Pompe disease using the dried blood spot (DBS) test in a cohort of patients with limb-girdle muscle weakness or persistent hyperCKemia.

Materials and methods: Patients with limb-girdle muscle weakness, persistently elevated CK, rigid spine syndrome, dyspnoea, myalgia or sibling of the patient diagnosed with LOPD were included in the study. Acid α-glucosidase (GAA) activity was measured on DBS by tandem mass spectrometry and followed by genetic testing when required. Study was conducted between June 2014 and May 2017.

Results: A total of 337 patients aged 32.2 years (range 2-80) were included in the study. Late-onset Pompe disease was diagnosed in 10 patients (3.0% of tested cohort). All were compound heterozygotes with common c.32-13T>G mutation on one allele and missense or frameshift mutation on the other. Two of the mutations (c.1951delG and c.397T>G) were not reported previously. Seven of the patients started enzyme replacement therapy.

Conclusions: DBS test is a reliable method for screening for late-onset Pompe disease.

Keywords: Pompe disease; dry blood spot; glycogen storage type 2; high CK; limb-girdle; screening.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Child
  • Child, Preschool
  • Cohort Studies
  • Dried Blood Spot Testing / methods
  • Female
  • Genetic Testing / methods*
  • Glycogen Storage Disease Type II / blood*
  • Glycogen Storage Disease Type II / diagnosis
  • Glycogen Storage Disease Type II / epidemiology
  • Glycogen Storage Disease Type II / genetics*
  • Humans
  • Male
  • Middle Aged
  • Muscular Dystrophies, Limb-Girdle / blood
  • Muscular Dystrophies, Limb-Girdle / diagnosis
  • Muscular Dystrophies, Limb-Girdle / epidemiology
  • Muscular Dystrophies, Limb-Girdle / genetics
  • Mutation / genetics
  • Poland / epidemiology
  • Young Adult

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