Central-peripheral Temperature Monitoring as a Marker for Diagnosing Late-onset Neonatal Sepsis

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Abstract

Background:

The prognosis for late-onset sepsis depends largely on a timely diagnosis. We assess central-peripheral temperature difference monitoring as a marker for late-onset neonatal sepsis diagnosis.

Methods:

We performed a prospective, observational study focusing on a cohort of 129 very low–birth-weight infants. Thermal gradient alteration was defined as a difference of > 2°C maintained during 4 hours. We then determined its association with the late-onset sepsis variable through logistic regression.

Results:

We enrolled 129 preterm babies in 52 months. Thermal gradient alterations showed an adjusted odds ratio for late-onset sepsis of 23.60 (95% confidence interval [CI], 6.80–81.88), with a sensitivity of 83% and negative predictive value of 94%. In 71% of cases, thermal gradient alteration was the first clinical sign of sepsis, while C-reactive protein was < 1.5 mg/dL in 64% of cases and procalcitonin < 2 ng/mL in 36%. These figures indicate potential for early diagnosis.

Conclusions:

Sustained increases of central-peripheral temperature differences are an early sign of evolving late-onset sepsis.

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