The Silverman-Anderson Score provides neonatal intensive care providers with an objective, standardized method to evaluate the severity of a newborn's struggle to breathe.
The Mechanics of Neonatal Distress
Premature babies often lack surfactant, a soapy substance that keeps the tiny air sacs in the lungs from collapsing. Without it, every breath is a massive physical struggle. The baby must use all their accessory muscles to physically pry their chest open to suck air in. This massive negative pressure causes the soft tissues between their ribs (intercostals) and below their sternum (xiphoid) to aggressively suck inward—a phenomenon known as retractions.
Sum of points (0-2) for Upper Chest Movement, Intercostal Retractions, Xiphoid Retractions, Nasal Flaring, and Expiratory Grunt.
Scoring and Triage
By systematically grading these signs of struggle (from 0 for normal to 2 for severe), the clinician derives a score out of 10. A score > 7 indicates that the baby is exhausting their energy reserves and is on the brink of complete respiratory collapse, necessitating immediate intubation and mechanical ventilation.