Necrotizing enterocolitis: Battling an enigma
The good news is that actions taken to prevent NEC can systematically support the health of both the infant and the mother in the long term, especially actions to prevent premature birth and support breastfeeding. Providing infants with early and exclusive access to human milk has been shown to reduce NEC.3,4 Colaizy and colleagues estimate that suboptimal feeding of US infants with formula (that is, less than 90% of infants fed less than 98% of their diet with human milk) is associated with 928 cases of NEC and 121 deaths a year.5 Changing practice to optimize human milk feeding could save $27 million in direct costs of care and up to $1.5 billion related to prematurely lost life every single year.5
Although the exact pathogenesis of NEC is unclear, we know it is multifactorial and that some NICU practices are eliminating the disease from their NICUs.6 This concept of “getting to zero NEC” cannot be done without engaging the entire family and care team. Simple actions backed by evidence that every clinician can do today to prevent NEC include:
NEC is like many conditions for which evidence exists but the consistent implementation of that evidence varies, and NICUs ultimately show different NEC rates. Agnoni and Amendola echo others in the neonatal community when they write that, “Though reports of [NEC] span back at least five decades, its pathogenesis remains an enigma, and the incidence in many NICUs remains the same and has even increased in some.” Yet, perhaps the mystery lies in deciphering how some NICU practices are eliminating or drastically reducing NEC. Perhaps the first step in breaking through scientific inertia lies in bridging the gulf between what we know and what we do.