Observational studyPediatric nephrology (Berlin, Germany)2023
Assessment of fluid balance after neonatal cardiac surgery: a description of intake/output vs. weight-based methods.
Observational study in Pediatric nephrology (Berlin, Germany), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 15 citations in OpenAlex.
- Impact of acute kidney injury and dysnatremia on length of stay in infants after cardiac surgery.Pediatric nephrology (Berlin, Germany) · 2025Article
- An update on the role of fluid overload in the prediction of outcome in acute kidney injury.Pediatric nephrology (Berlin, Germany) · 2024Review
- Persistent acute kidney injury and fluid accumulation with outcomes after the Norwood procedure: report from NEPHRON.Pediatric nephrology (Berlin, Germany) · 2024Article
- Fluid assessment, fluid balance, and fluid overload in sick children: a report from the Pediatric Acute Disease Quality Initiative (ADQI) conference.Pediatric nephrology (Berlin, Germany) · 2024Article
- Early postoperative weight-based fluid overload is associated with worse outcomes after neonatal cardiac surgery.Pediatric nephrology (Berlin, Germany) · 2023Article
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Authors and funding
14 authors at 11 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundFluid overload associates with poor outcomes after neonatal cardiac surgery, but consensus does not exist for the most clinically relevant method of measuring fluid balance (FB). While weight change-based FB (FB-W) is standard in neonatal intensive care units, weighing infants after cardiac surgery may be challenging. We aimed to identify characteristics associated with obtaining weights and to understand how intake/output-based FB (FB-IO) and FB-W compare in the early postoperative period in this population.
methodsObservational retrospective study of 2235 neonates undergoing cardiac surgery from 22 hospitals comprising the NEonatal and Pediatric Heart and Renal Outcomes Network (NEPHRON) database.
resultsForty-five percent (n = 998) of patients were weighed on postoperative day (POD) 2, varying from 2 to 98% among centers. Odds of being weighed were lower for STAT categories 4 and 5 (OR 0.72; 95% CI 0.53-0.98), cardiopulmonary bypass (0.59; 0.42-0.83), delayed sternal closure (0.27; 0.19-0.38), prophylactic peritoneal dialysis use (0.58; 0.34-0.99), and mechanical ventilation on POD 2 (0.23; 0.16-0.33). Correlation between FB-IO and FB-W was weak for every POD 1-6 and within the entire cohort (correlation coefficient 0.15; 95% CI 0.12-0.17). FB-W measured higher than paired FB-IO (mean bias 12.5%; 95% CI 11.6-13.4%) with wide 95% limits of agreement (- 15.4-40.4%).
conclusionsWeighing neonates early after cardiac surgery is uncommon, with significant practice variation among centers. Patients with increased severity of illness are less likely to be weighed. FB-W and FB-IO have weak correlation, and further study is needed to determine which cumulative FB metric most associates with adverse outcomes. A higher resolution version of the Graphical abstract is available as Supplementary information.
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