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C-reactive protein and haemoglobin level in acute kidney injury among preterm newborns
Fiva Aprilia Kadi1, Tetty Yuniati1, Yunia Sribudian1
1Department of Child Health, Universitas Padjadjaran Medical School/Dr Hasan Sadikin General Hospital, Bandung, West Java, Indonesia.
Insights
C-reactive protein (CRP) and hemoglobin (Hb) can predict acute kidney injury (AKI) in preterm newborns. Elevated CRP and low Hb levels serve as an early warning for AKI risk.
Area of Science:
- Neonatal Medicine
- Biomarkers
- Nephrology
Background:
- Acute kidney injury (AKI) is a significant concern in preterm newborns.
- Early detection and risk assessment of AKI are crucial for improving outcomes.
- Biomarkers like C-reactive protein (CRP) and hemoglobin (Hb) are being investigated for their predictive potential.
Purpose of the Study:
- To evaluate the role of C-reactive protein (CRP) and hemoglobin (Hb) in predicting and assessing the risk of acute kidney injury (AKI) in preterm infants.
- To identify cost-effective methods for early AKI detection in neonates.
Main Methods:
- A case-control study involving 112 preterm infants was conducted.
- Infants were categorized into groups with and without AKI based on neonatal KDIGO criteria.
- Serum CRP and creatinine levels were measured at specific intervals post-birth; routine blood counts including Hb were performed within 24 hours.
Main Results:
- Increased C-reactive protein (CRP) was the most significant predictor of AKI, demonstrating 80.6% sensitivity and 60.2% specificity.
- An elevated CRP level (>0.04) was associated with a 5.64-fold increased odds of AKI (aOR: 5.64, 95% CI: 1.89-16.84).
- Hemoglobin (Hb) levels below 14.5 g/dL showed a slightly increased odds of AKI (aOR: 1.65, 95% CI: 1.05-8.63).
Conclusions:
- Elevated CRP levels (>0.04) and low hemoglobin (<14.5 g/dL) are acceptable early warning indicators for AKI in preterm newborns.
- These biomarkers offer a potential strategy for early risk assessment and intervention in neonatal AKI.
Abstract:
Aim To explore the possibility of C-reactive protein (CRP) and haemoglobin (Hb) in prediction and risk assessment of acute kidney injury (AKI) among preterm newborns. This is believed to be closely related to the incidences of AKI, and could be the most affordable in early detection of AKI. Methods A case control study was carried out at Dr Hasan Sadikin Hospital in Bandung with a total of 112 preterms divided into two groups: with and without AKI based on the neonatal KDIGO (Kidney Disease: Improving Global Outcomes). CRP and creatinine serum were measured within 6 hours and at 72-96 hours after birth. The routine blood count included haemoglobin, haematocrit, leucocyte, and thrombocyte in the first 24 hours of life. Results CRP increase was the most influential factor for AKI with sensitivity of 80.6% and specificity of 60.2%. An increase in CRP >0.04 had an aOR (95% CI) of 5.64 (1.89-16.84). Haemoglobin <14.5 g/dL had slightly increased aOR (95% CI) of 1.65 (1.05- 8.63) Conclusion CRP increases >0.04 and level Hb <14.5 g/dL showed acceptable as an early warning for AKI in preterm newborns.
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