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Published on: April 7, 2021
[Risk factors for mortality in pediatric acute respiratory distress syndrome requiring extracorporeal membrane
H L Zhang1, Z C Feng2, Y Cheng3
1The Second School of Clinical Medicine, Southern Medical University, Guangzhou 510515, China.
Insights
Acute kidney injury (AKI) and continuous renal replacement therapy (CRRT) are key risk factors for mortality in pediatric acute respiratory distress syndrome (PARDS) patients on extracorporeal membrane oxygenation (ECMO). Identifying these factors improves patient outcomes.
Area of Science:
- Pediatric Critical Care Medicine
- Cardiopulmonary Support
- Nephrology
Background:
- Pediatric acute respiratory distress syndrome (PARDS) is a life-threatening condition requiring advanced support.
- Extracorporeal membrane oxygenation (ECMO) is used for severe PARDS but carries significant mortality risks.
- Identifying specific risk factors for mortality in PARDS patients on ECMO is crucial for improving survival rates.
Purpose of the Study:
- To investigate the independent risk factors associated with mortality in children with severe PARDS receiving ECMO support.
- To analyze demographic, clinical, and laboratory data to identify predictors of death in this vulnerable patient population.
Main Methods:
- Retrospective analysis of clinical data from 109 pediatric patients with severe PARDS requiring ECMO across 6 Chinese centers (September 2012 - February 2020).
- Patients were categorized into survival and death groups based on prognosis.
- Statistical analyses, including Chi-square tests, rank sum tests, and univariate/multivariate Logistic regression, were employed to identify prognostic risk factors.
Main Results:
- The study included 109 patients, with 54 deaths and 55 survivors.
- The non-survival group exhibited significantly higher incidences of acute kidney injury (AKI) and coagulation dysfunction compared to the survival group.
- Multivariate Logistic regression identified AKI and the need for continuous renal replacement therapy (CRRT) as independent risk factors for mortality (HR=4.84 and HR=3.88, respectively).
Conclusions:
- Acute kidney injury (AKI) is a significant independent risk factor for mortality in pediatric patients with severe PARDS on ECMO.
- Continuous renal replacement therapy (CRRT), often necessitated by AKI, also independently predicts higher mortality rates in this cohort.
- These findings underscore the importance of vigilant monitoring and management of renal function and coagulation in critically ill children with PARDS undergoing ECMO.
Abstract:
Objective: To explore the risk factors for mortality in pediatric acute respiratory distress syndrome (PARDS) requiring extracorporeal membrane oxygenation (ECMO) support. Methods: Clinical data of 109 patients with severe PARDS supported by ECMO, who were hospitalized in 6 ECMO centers in China from September 2012 to February 2020, were retrospectively analyzed. They were divided into survival group and death group according to the prognosis. Chi-square test and rank sum test were used to compare the variables between the two groups, including the demographic data, laboratory examination results, clinical data before and after ECMO, and other supportive treatment. Univariate and multivariate Logistic regression models were used to analyze the prognostic risk factors. Results: In these 109 cases, 54 died and 55 survived. Compared with the survival group, the death group had higher incidences of acute kidney injury (AKI) (48.1% (26/54) vs. 21.8% (12/55), χ²=8.318, P=0.004) and coagulation dysfunction (22.2% (12/54) vs. 7.3% (4/55), χ²=4.862, P=0.027), and higher rate of renal replacement therapy (48.1% (26/54) vs. 21.8% (12/55), χ²=9.694, P=0.008) during ECMO support. Logistic regression analysis showed that continuous renal replacement therapy (CRRT) and AKI were independent risk factors for death in patients with severe PARDS requiring ECMO support (HR=3.88,95%CI 1.04-14.52, HR=4.84,95%CI 1.21-19.46, both P<0.05). Conclusion: AKI and CRRT are independent risk factors for predicting mortality in patients with severe PARDS requiring ECMO support.
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