Aspiration of Breast Milk as a Cause of Death in Infants

Risk of Breast Milk Aspiration

Aspiration occurs when material moves below the true vocal folds and enters the trachea 2
The most dangerous time for fatal aspiration pneumonia is during the brief period just before and immediately after birth, with neonatal aspiration syndromes reported in 4% of all live births 1
In newborns and infants, aspiration often presents with subtle signs such as apnea and increased swallowing frequency rather than cough, making detection challenging 1
Developmental factors play a role in aspiration risk, as infants have immature protective airway reflexes 1
During the fetal or newborn periods, water in the larynx does not result in a cough; rather, it results in apnea and increased swallowing frequency 1

Suck and swallowing dyscoordination or weak swallowing can limit the use of bottle or breast feeding initially in vulnerable infants 3

Preoperative fasting guidelines recommend that breast milk may be ingested up to 4 hours before elective procedures requiring anesthesia, compared to 6 hours for infant formula, reflecting the different aspiration risks 4, 5
These guidelines are based on the principle of minimizing the risk of pulmonary aspiration of gastric contents while preventing unnecessarily long fasting intervals 6
Pulmonary aspiration associated with anesthesia is rare and has nearly no mortality in pediatric anesthesia 6

For infants with chronic lung disease or those at risk of aspiration, continuous naso- or orogastric tube feedings may be necessary initially 3
As respiratory status improves, bolus feedings may be initiated, though additional supplemental oxygen may be required 3
Concomitant stimulation of oral-motor skills should occur in all tube-fed patients to prepare them for eventual feeding by mouth when there is no longer a risk of oral-pharyngeal aspiration 3