This study was a retrospective descriptive case series analyzing outcomes of a novel surgical approach This study aimed to evaluate a modified surgical technique-called the Sandwich Procedure-for reconstructing the heart after resection of cardiac fibromas in children. Cardiac fibroma is a rare benign tumor that can compress vital cardiac structures and cause serious symptoms such as arrhythmia, heart failure, or obstruction of blood flow. Surgical removal is often required, but large tumors may leave defects in the heart wall that are challenging to repair, especially in young children.

The Sandwich Procedure was developed at our institution to improve the strength and stability of heart wall reconstruction after tumor removal. It involves suturing two layers of treated biological tissue-both inside and outside the heart wall-to restore normal shape and function, while minimizing the risk of complications like aneurysm or bleeding. This retrospective, observational study includes pediatric patients who underwent this procedure between 2018 and 2023. We report on its surgical feasibility, short- and mid-term outcomes, and potential benefits in preserving cardiac function.

Inclusion Criteria:

• underwent cardiac tumor resection
• underwent ventricular reconstruction with the Sandwich Procedure

Exclusion Criteria:

• the final pathological diagnosis indicated other than cardiac fibroma
• the final pathological diagnosis indicated metastatic tumors
• incomplete clinical or follow-up data

patients underwent cardiac fibroma resection followed by ventricular reconstruction with the Sandwich Procedure at our institution

The data underlying this article cannot be shared publicly for the privacy of individuals that participated in the study.