6MWT can identify type 3 SMA patients with neuromuscular junction dysfunction

Marika Pane, Serenella Servidei, Eugenio Maria Mercuri, Maria Carmela Pera, Marco Luigetti, Giorgia Coratti, Elena Stacy Mazzone, Concetta Palermo, Domiziana Ranalli, Giuseppe Granata

Risultato della ricerca: Contributo in rivistaArticolo in rivista

16 Citazioni (Scopus)

Abstract

The aim of the study was to establish if the decrease in gait velocity on the 6 minute walk test relates to signs of neuromuscular junction dysfunction in spinal muscular atrophy type 3 patients. 6 minute walk test and low-rate repetitive nerve stimulation test were performed in fifteen ambulant patients with spinal muscular atrophy type 3 of age between 9 and 66 years. The 6 minute walk distance ranged between 66 and 575 m. The difference between the first and the 6th minute ranged between 0 and −69%. The low-rate repetitive nerve stimulation test measured in % of loss ranged between −31.7% to +4.2% to the axillary nerve. The correlation between 6 minute walk test changes and low-rate repetitive nerve stimulation test changes was 0.86. Our data suggest that the 6 minute walk test can identify fatigue in the ambulant type 3 patients who have a concurrent neuromuscular junction dysfunction. The identification of fatigue with a simple clinical test may help to target patients who may benefit from drugs that facilitate neuromuscular transmission.
Lingua originaleEnglish
pagine (da-a)879-882
Numero di pagine4
RivistaNeuromuscular Disorders
Volume27
DOI
Stato di pubblicazionePubblicato - 2017

Keywords

  • 6 minute walk test
  • Fatigue
  • Genetics (clinical)
  • Low-rate nerve stimulation
  • Neurology
  • Neurology (clinical)
  • Neuromuscular disorders
  • Neuromuscular junction
  • Pediatrics, Perinatology and Child Health
  • Spinal muscular atrophy

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