Prolonged survival in neonatal nemaline rod myopathy.

Two children are reported who are notable exceptions to the rule of early mortality reported for neonates with severe nemaline rod myopathy. Their conditions improved progressively from birth with full pediatric critical care unit support. They achieved respiratory independence at 22 months and 15 months and now at ages 29 months and 17 months, respectively, they are cognitively normal and demonstrating progressive improvement in muscle strength.