A child with spinal muscular atrophy type I (SMA) is admitted with respiratory syncytial virus...

Children withSMA Type Ihave profound muscle weakness, including respiratory muscles. RSV increases respiratory workload, and once non-invasive measures and suctioning fail,intubation and mechanical ventilationare indicated to reduce fatigue and support gas exchange.

“Patients with neuromuscular disorders such as SMA are at increased risk for respiratory failure during acute infections. Mechanical ventilation is required when oxygenation does not improve with non-invasive methods or when respiratory fatigue is evident.”

(Referenced from CCRN Pediatric – Direct Care: Pulmonary Disorders and Neuromuscular Disease)

O₂ saturations in the low 90s despite 50% FiO₂ signal worsening gas exchange. Non-invasive support may be inadequate in the setting of hypotonia and viral pneumonia.