Prediction of GutCheck NEC and Its Relation to Severity of Illness and Measures of Deterioration in Necrotizing Enterocolitis.

Background: Necrotizing enterocolitis (NEC) risk has been shown to arise from multiple sources and risk awareness may be supported using bedside tools.

Purpose: The purpose of this research was to examine the extent to which GutCheck NEC was associated with scores for clinical deterioration, severity of illness, and clinical outcome, and further to examine how scores might improve NEC prediction.

Methods: A retrospective, correlational case-control study with infant data from 3 affiliated neonatal intensive care units was conducted.

Results: Of 132 infants (44 cases, 88 controls), most were 28 weeks of gestation at birth and less (74%). Median age at NEC onset was 18 days (range: 6-34 days), with two-thirds diagnosed before 21 days. At 68 hours of life, higher GutCheck NEC scores were associated with NEC requiring surgery or resulting in death (relative risk ratio [RRR] = 1.06, P = .036), associations that persisted at 24 hours prior to diagnosis (RRR = 1.05, P = .046), and at the time of diagnosis (RRR = 1.05, P = .022) but showed no associations for medical NEC. GutCheck NEC scores were significantly correlated with pediatric early warning scores (PEWS) ( r > 0.30; P < .005) and SNAPPE-II scores ( r > 0.44, P < .0001). Increasing numbers of clinical signs and symptoms were positively associated with GutCheck NEC and PEWS at the time of diagnosis ( r = 0.19, P = .026; and r = 0.25, P = .005, respectively).

Implications For Practice And Research: GutCheck NEC provides structure to streamline assessment and communication about NEC risk. Yet, it is not intended to be diagnostic. Research is needed on how GutCheck NEC impacts timely recognition and treatment.