Phenotype details |
toe walker as toddler; 7y-progressive leg weakness, fatigability, valgus ankle deformity; 11y-moderate proximal muscle weakness, thoracic scoliosis, rigid spine predominantly affecting cervical region, ECG restrictive cardiomyopathy (slightly large left atrium, trivial pulmonary/mitral regurgitation); 12y-rapid progression, marked weakness axial/proximal limb muscles, scapular winging, reduced forced vital capacity; 13y-respiratory insufficiency, intolerant for nocturnal ventilatory support; died after chest infection; raised CPK (15x) |