A Novel Minimally Invasive Technique of Temporary Caval Occlusion for Right Heart Surgery.

Right heart surgery is challenging in the minimally invasive cardiac surgery setting, particularly in terms of caval isolation procedures in patients with enlarged and pressurized atria. We describe a novel minimally invasive caval occlusion technique with the use of a balloon catheter designed for temporary large vessel occlusion. A patient with a large ostium secundum atrial septal defect and significant shunt flow underwent a successful minimally invasive closure of the pathological connection between atria with a bovine pericardial patch. The utilized occlusion technique provided excellent visibility of the surgical site and may facilitate minimally invasive procedures in various clinical scenarios.