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J Child Neurol. 1996 Nov;11(6):458-61.

3,4-diaminopyridine in childhood myasthenia: double-blind, placebo-controlled trial.

Author information

1
Department of Pediatric Neurology, Hacettepe University, Ankara, Turkey.

Abstract

Eleven patients with congenital and five with juvenile myasthenia gravis, aged 5 to 24 years, were given 3,4-diaminopyridine in a double-blind, placebo-controlled, crossover study. Clinical improvement was observed in 5 of 11 congenital myasthenia patients, and placebo effect, in 3 of 11. Juvenile myasthenia patients did not respond. Single-fiber electromyographic studies did not reveal any changes correlating with the clinical status of the patient. This study demonstrates the importance of double-blind and placebo-controlled studies to determine the effect of 3,4-diaminopyridine in congenital myasthenia. This drug may have different effects on various presynaptic and postsynaptic defects of neuromuscular transmission resulting in congenital myasthenia syndromes.

PMID:
9120223
DOI:
10.1177/088307389601100608
[Indexed for MEDLINE]

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