Prompt Response to Prednisone Predicts Benign Course in MuSK-MG

Gungor-Tuncer O., Yilmaz V. , Toker A., Saruhan-Direskeneli G. , Gulsen-Parman Y., Oflazer-Serdaroglu P., ...Daha Fazla

EUROPEAN NEUROLOGY, cilt.78, ss.137-142, 2017 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 78
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1159/000479228
  • Sayfa Sayıları: ss.137-142


Background: The difficult course of patients with myasthenia gravis (MG) with anti-muscle-specific tyrosine kinase antibodies (MuSK) has been emphasized. However, no clear information is available on patients who have a benign course. Methods: This study was aimed at comparing patients with favorable (minimal manifestations [MM] or better) and unfavorable outcomes to determine whether excellent response to corticosteroid (CS) treatment within 3 months (good response-3 months) has any predictive effect on the prognosis. Results: Forty-six percent of 46 patients had a favorable outcome at year 3 and 54% at final follow-up. The major finding of this study was its high predictive value with good response- 3 months. Those with good response-3 months had significantly more favorable outcome as compared to those without at year 3. The positive predictive value of good response- 3 months was high (89% at year 3 and 84% at final follow-up). The negative predictive value diminished from 85% at year 3 to 67% at final follow-up due to increasing number of patients improving in the long run. Overall, 33% of the patients had a benign course with good response-3 months and no major exacerbations until the end of followup. Conclusions: Excellent response to CSs within 3 months appears to predict a favorable outcome in MuSK-MG. (C) 2017 S. Karger AG, Basel