Non-Invasive Prediction of Necrotizing Enterocolitis in Preterm Neonates with Feeding Intolerance

Necrotizing enterocolitis is one of the most life-threatening conditions for premature infants in neonatal intensive care units (NICU) and is associated with severe intestinal inflammation and necrosis, which occurs in 5-16% of very low birth weight (VLBW) infants with a mortality rate of 20-50% and various long-term clinical sequelae for the survivors.

Although preterm intestinal epithelium is suggested to be predisposed to an exaggerated inflammatory response to the present microbiome, impaired mesenteric perfusion inducing bowel hypoxia and ischemia is suggested to be one of the factors playing a major role in the development of NEC.

Pathogenesis of NEC is multifactorial; however, one of the major factors is the disturbance in the end-organ blood flow with early hypoperfusion and hypotension, predisposing for developing NEC in preterm neonates.

Electrical cardiometry (EC) is an impedance-based method that has been introduced for continuous noninvasive hemodynamic monitoring for cardiac output (CO) and DO2 in both term and preterm infants.

Clinical studies have shown that abnormal perfusion in the splanchnic circulation, particularly in the superior mesenteric artery (SMA), may have a role in the development of NEC in newborns so can be used for early diagnosis and evaluation of NEC progression.