Resection of left ventricular tumors–the bovine pericardial patch sandwich technique Surgery of left ventricular tumors

Objective To illustrate our surgical technique, a bovine pericardial sandwich technique is used to remodel and reinforce the left ventricular wall structure after left ventricular wall tumor resection, to restore left ventricular function, and to simultaneously resect as much of the left ventricular tumor as possible with maximum effort to protect the coronary arteries and the mitral and aortic valves. Methods A single-center retrospective case series including four pediatric patients undergoing left ventricular tumor resection via bovine pericardial sandwich technique between March 2021 and July 2023. We systematically collected clinical, imaging, echocardiographic and pathological data, and summarized standardized perioperative management strategies. Intraoperative radical tumor excision was performed, followed by double-layer bovine pericardial patch reinforcement of ventricular wall defects to eliminate intramyocardial dead space, without coronary or valvular injury. Results All four children recovered uneventfully after surgery and were discharged. Long-term serial echocardiography confirmed stable preserved left ventricular function over standardized follow-up. Conclusions We established a feasible surgical technique for a bovine pericardial sandwich technique to resect left ventricular wall tumor.The use of the bovine pericardium sandwich sandwich method to remove left ventricular wall tumors is clinically feasible.This greatly reduces the incidence of left ventricular wall hematoma, wall rupture, and wall dyskinesia, while removing as much of the tumor as possible and leaving left ventricular function intact.