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Association Between Platelet-to-Lymphocyte Ratio and Preterm Necrotizing Enterocolitis
Juan Zheng1,2,3, Hua Wang1,2
1Department of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu, China.
Frontiers in Pediatrics
|November 22, 2021
Summary
Necrotizing enterocolitis (NEC) in preterm infants may be predicted by a high platelet-to-lymphocyte ratio (PLR). A PLR over 100 within one week of clinical signs indicates a significantly increased risk for NEC.
Area of Science:
- Neonatal Medicine
- Pediatric Gastroenterology
- Hematology
Background:
- Necrotizing enterocolitis (NEC) is a severe gastrointestinal condition in premature infants, often leading to mortality.
- Early diagnosis of NEC is challenging due to a lack of sensitive laboratory markers.
- Identifying reliable biomarkers is crucial for timely intervention in very-low-birth-weight infants.
Purpose of the Study:
- To investigate the association between the platelet-to-lymphocyte ratio (PLR) and the incidence of NEC in preterm neonates.
- To determine if PLR can serve as an early diagnostic indicator for NEC in premature infants.
- To explore the predictive value of PLR for NEC development.
Main Methods:
- A retrospective case-control study was conducted involving preterm neonates diagnosed with NEC and matched controls.
- Data were collected from infants admitted between January 2018 and December 2019.
- Statistical analysis, including Empowerstats, was used to assess the relationship between PLR and NEC.
Main Results:
- Infants diagnosed with NEC exhibited significantly higher PLR levels compared to the control group.
- A PLR exceeding 100 within one week prior to NEC diagnosis was identified as a risk factor.
- A PLR cutoff of >100 demonstrated a high predictive value for NEC (OR: 18.82, p = 0.002).
Conclusions:
- Elevated PLR (>100) within one week of clinical abnormalities is strongly associated with a high risk of NEC in preterm neonates.
- PLR shows potential as a valuable, non-invasive biomarker for the early detection of NEC.
- Further research could validate PLR as a routine diagnostic tool in neonatal intensive care units.

