serum cystatin c levels in preterm newborns in our setting: correlation with serum creatinine and preterm pathologies
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ID: 188464
2015
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Abstract
Background: Cystatin C (CysC) is a renal function marker that is not as influenced as creatinine (Cr) by endogenous or exogenous agents, so it is proposed as a marker in preterm infants.
Objectives: To determine serum CysC values in preterm infants during the first week of life, compared to Cr. To analyse alterations caused by prematurity diseases.
Method: The design involved a longitudinal, observational study of prospective cohorts.
Groups were based on gestational age (GA): Group A (24–27 weeks), Group B (28–33 weeks), Group C (34–36 weeks). Blood samples were collected at birth, within 48–72 h and after 7 days of life.
Statistics: SPSS v.20 software was used. The statistical methods applied included chi-squared test and ANOVA.
Results: A total of 109 preterm infants were included in the study. CysC levels were 1.54 mg/l (±0.28) at birth, 1.38 mg/l (±0.36) within 48–72 h of life, and 1.50 mg/l (± 0.31) after 7 days (p < 0.05). Cr levels were 0.64 mg/dl (±0.17) at birth, 0.64 mg/dl (± 0.28) within 48–72 h, and 0.56 mg/dl (± 0.19) after 7 days (P < .05). CysC values were lower in hypotensive patients and in those with a respiratory disease (P < .05), and no alterations associated with other diseases were observed. There were no differences in Cr levels associated with any disease. Creatinine levels were higher in patients ≤1.500 g (P < .05).
Conclusions: Serum CysC decreased within 48–72 h of life, and this decline showed significance (P < .05). The levels increased after 7 days in all 3 GA groups, and there was no difference in CysC levels among the groups. More studies in preterm infants with hypotension and respiratory disease are required. CysC is a better glomerular filtration rate (GFR) marker in ≤1.500 g preterm infants.
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cruzado2015nefrologaserum
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| Authors | ;Leonor Bardallo Cruzado;Elena Pérez González;Zoraima Martínez Martos;Carmen Bermudo Guitarte;Mercedes Granero Asencio;Salud Luna Lagares;Mariano Marín Patón;Juan Polo Padilla |
| Journal | demiryolu mühendisliği |
| Year | 2015 |
| DOI |
10.1016/j.nefroe.2015.06.003
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