Conflict of interest statement
The authors declare that they have no conflict of interest.
Ethics approval and consent to participate
Written informed consents were obtained from the patients' families for the publication of these case reports. Institutional approval for case publication was granted by the Department of Pediatric Cardiology and Nephrology, Can Tho Children's Hospital (Approval No. CV-BN03/TM/BVN CT/2025).
Funding
The authors received no extramural funding for the study.
Authors’ contributions
QNC: Conceived and designed the study, curated and collected data, drafted the manuscript. HTD: Supervised the project, critically reviewed and revised the manuscript for important intellectual content. THT: Performed laboratory analyses, prepared the illustrative figure, reviewed and revised the manuscript. NNQ: Verified data accuracy, reviewed and revised the manuscript. MLH: Verified data accuracy, reviewed and revised the manuscript.
Publisher’s note
The Publisher of the Journal remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Edited by Pan Y, Lei Y, Zhang Q
Acknowledgements
We sincerely thank Can Tho University of Medicine and Pharmacy for their professional support and valuable feedback during the preparation of this report. We also express our gratitude to the pediatric patients and their families for their cooperation. During manuscript preparation, we used ChatGPT (OpenAI) to improve clarity and language; all authors reviewed and take full responsibility for the final content.