Abstract
Background: The imbalance between the body’s oxygen supply and demand is one of the causes leading to some complications in resuscitation after congenital heart surgery. A low ScvO2 is one of the valuable indicators predicting some major events after congenital open heart surgery. Objectives: Evaluate the value of ScvO2 in predicting MAE in children with congenital heart disease at the Vietnam National Children’s Hospital in 2022 - 2023. Methods: A cross-sectional and descriptive study was conducted on 117 children with congenital heart disease undergoing open heart surgery to describe the distribution of the value of ScvO2 according to time, weight, RACHS-1 score, time of aortic clamp and time of cardiopulmonary bypass at 4 times: immediately after leaving the Surgical Cardiac Intensive Care Unit (T1), after 6h (T2), after 12h (T3), after 24h (T4); Predictive ability of ScvO2 for some major adverse events (MAE) after open heart surgery in children with congenital heart disease. Results: The value of ScvO2 dropped to its minimum level after 6 hours of admission to the Surgical Cardiac Intensive Care Unit (54.42 ± 12.76%) and gradually increased at T3 and T4. The difference between times was statistically significant with p < 0.01. The proportion of study patients with MAE was 24.8%. The value of ScvO2 after 6 hours of admission to the post-operative Surgical Cardiac Intensive Care Unit, with a cut-off point of 54.5%, had the best ability to predict MAE during the study times. Sensitivity is 93.1%, while specificity is 69.3%, and the area under the curve AUC was 0.879. Conclusions: ScvO2 ≤ 54.5% at time T2 can predict MAE after open heart surgery in children with congenital heart disease, with very good AUC, specificity, and sensitivity.
| Published | 2025-12-31 | |
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| Issue | Vol. 4 No. 5 (2025) | |
| Section | Original article | |
| DOI | 10.66517/jstmp.2025.5.1 | |
| Keywords | ScvO2, MAE, Phẫu thuật tim mở ScvO2, MAE, Congenital open heart surgery |

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