Short report
Can myasthenia gravis be diagnosed with the `ice pack test'? A
cautionary note
Andrew J Larner, Dafydd J Thomas
Department
of Neurology, St Mary's Hospital, Praed Street, London W2 1NY, UK
Correspondence to: Dr AJ Larner, Walton Centre for Neurology and Neurosurgery, Lower Lane, Fazakerley, Liverpool, L9 7LJ, UK
Submitted 5 May 1999;
Accepted 13 August 1999
The ice pack test may be helpful in establishing that ptosis is
due to ocular myasthenia gravis, since cold improves neuromuscular transmission. However, the role of the test in determining whether diplopia is of myasthenic origin has yet to be established.
Keywords: myasthenia gravis; diplopia; ice pack test
© 2000 by The Fellowship of Postgraduate Medicine
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