Treatment of ocular symptoms in myasthenia gravis  

Oleh:

Bhanushali, Minal J. ; Wuu, Joanne ; Benatar, Michael

Jenis: Article from Journal - ilmiah internasional
Dalam koleksi: Neurology (Official Journal of The American Academy of Neurology) vol. 71 no. 17 (Oct. 2008), page 1335-1341.
Topik: ACETYL-CHOLINESTERASE INHIBITOR; OCULAR MYASTHENIA

Ketersediaan

Perpustakaan FK Nomor Panggil: N11.K.2008.04 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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Isi artikel

Background: The choice between acetyl-cholinesterase inhibitors (AChE-Is) and steroids as symptomatic therapy for ocular symptoms in myasthenia is controversial. Methods: Thirty-five patients with myasthenia and ocular symptoms were evaluated by a single investigator. The ocular-quantitative myasthenia gravis (QMG) score was determined at each visit. The longitudinal construct validity of the ocular-QMG was assessed. Treatment epochs on AChE-I therapy alone or on steroids were defined for each patient. Changes in ocular-QMG scores between the start and end of each treatment epoch as well as the proportion of subjects achieving remission of symptoms were documented. The frequency of steroid-induced side effects was documented. Results: The longitudinal construct validity was favorable and comparable to that for the total QMG score. Eight patients were treated with AChE-I therapy alone, 6 were initially treated with AChE-I followed by steroids, and 21 received steroids ab initio. There were 14 epochs of AChE-I treatment and 27 epochs of steroid treatment. The mean improvement in ocular-QMG score was greater during the steroid epoch (3.6 ± 2.4) than during the AChE-I epoch (1.1 ± 1.9) (p = 0.0021). Complete resolution of ocular symptoms occurred in 29% of AChE-I treatment epochs and in 70% of steroid treatment epochs. The most common steroid-induced side effects observed were impaired glucose tolerance (67%) and reduced bone mineral density (20%). Conclusion: The ocular-quantitative myasthenia gravis score may be a useful tool for monitoring ocular symptom severity in myasthenia. Steroids appear to be more effective than acetyl-cholinesterase inhibitors. These findings warrant a more formal evaluation in a randomized controlled trial.

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