The 3SCTS will be a combined scientific meeting of three societies - the Australian and New Zealand College of Perfusionists (ANZCP), the Australian and New Zealand Society of Cardiac & Thoracic Surgeons (ANZSCTS) and the Cardiac Thoracic Vascular and Perfusion Special Interest Group (CTVP SIG). In 2021, our Symposium will be held in conjunction with the International Society for Minimally Invasive Cardiothoracic Surgery (ISMICS) 2021 Workshop. The 3SCTS 2021 will, for the first time, provide everyone involved in the management and treatment of cardiac and thoracic patients the opportunity to come together. 3SCTS 2021 will be an excellent forum for the exchange of views, shared experiences and the latest scientific knowledge; enriching collaboration between surgeons, anaesthetists, perfusionists, and industry as well as providing opportunities for networking and the building of relationships internationally. We hope you can join us for this important collaboration.