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Updated: Nov 2, 2025

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Published on: February 8, 2022
Prediction of arrhythmia after intervention in children with atrial septal defect based on random forest
Hongxiao Sun1, Yuhai Liu2, Bo Song3
1Qingdao Women and Children's Hospital, Qingdao University, 266034, Qingdao, China.
Insights
This study developed a random forest model to predict arrhythmia risk in children undergoing atrial septal defect intervention. The model achieved 94.65% accuracy, aiding clinical decisions for patients and families.
Area of Science:
- Cardiology
- Pediatric Medicine
- Machine Learning in Healthcare
Background:
- Atrial septal defect (ASD) is a common congenital heart condition in children.
- Interventional closure is a standard treatment, but carries risks of postoperative complications like arrhythmia.
- Accurate prediction of arrhythmia risk is crucial for informed clinical and family decision-making.
Purpose of the Study:
- To develop and validate a machine learning-based prediction model for postoperative arrhythmia in children with ASD.
- To provide a tool that assists clinicians and families in preoperative risk assessment and decision-making.
- To improve the management of patients undergoing interventional ASD closure.
Main Methods:
- A prediction model was constructed using the random forest machine learning algorithm.
- The Synthetic Minority Oversampling Technique (SMOTE) was employed to handle data imbalance.
- The model's performance was evaluated using accuracy and Area Under the Curve (AUC).
Main Results:
- The random forest model achieved a high prediction accuracy of 94.65%.
- The model demonstrated a strong discriminative ability with an Area Under the Curve (AUC) of 0.8956.
- The developed model effectively identified patients at risk for arrhythmia post-intervention.
Conclusions:
- The random forest-based model is effective in predicting arrhythmia complications after interventional closure of atrial septal defect in children.
- This predictive tool can significantly aid in the preoperative decision-making process for clinicians and patient families.
- The study highlights the utility of machine learning in enhancing cardiovascular risk prediction in pediatric populations.
Background:
Using random forest to predict arrhythmia after intervention in children with atrial septal defect.
Methods:
We constructed a prediction model of complications after interventional closure for children with atrial septal defect. The model was based on random forest, and it solved the need for postoperative arrhythmia risk prediction and assisted clinicians and patients' families to make preoperative decisions.
Results:
Available risk prediction models provided patients with specific risk factor assessments, we used Synthetic Minority Oversampling Technique algorithm and random forest machine learning to propose a prediction model, and got a prediction accuracy of 94.65 % and an Area Under Curve value of 0.8956.
Conclusions:
Our study was based on the model constructed by random forest, which can effectively predict the complications of arrhythmia after interventional closure in children with atrial septal defect.
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