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Objective: This study aimed to investigate the relationship between serum lactate levels at admission to the intensive care unit (ICU) and the clinical outcomes of children with sepsis.
Methods: We used the Pediatric Intensive Care (PIC) database to identify 288 pediatric patients with sepsis. We analyzed the relationship between lactate levels and hospital and ICU mortality in sepsis by establishing a segmented multivariable Cox regression model. We also conducted subgroup analysis as well as analyzed the restricted cubic spline curves.
Results: After adjusting for all potential confounding factors, an increase of 1 mmol/L in lactate levels was found to be associated with an 17% rise in the 28-day hospital mortality risk among sepsis patients (HR: 1.17, 95% CI: 1.08-1.27, P = 0.0002). When considering lactate as a categorical variable, the mortality risk of patients with lactate levels ≥ 2.2 mmol/L was significantly increased (HR: 3.61, 95% CI: 1.24-10.54, P = 0.0189). The restricted cubic spline curve analysis revealed a nonlinear correlation between lactate and 28-day mortality, with an inflection point at 2.2 mmol/L. Similar findings were also observed in the assessment of secondary outcomes.
Conclusions: Our study demonstrates a non-linear correlation between lactate levels and 28-day mortality in pediatric sepsis, with a critical threshold of 2.2mmol/l for lactate levels in septic patients. Early assessment of lactate levels is recommended for children with sepsis to facilitate prompt intervention and mitigate the risk of fatality.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11542395 | PMC |
| http://dx.doi.org/10.1186/s12887-024-05200-4 | DOI Listing |
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