[Low Output Syndrome:Points to Consider for Intraoperative Myocardial Protection and Treatment Methods]

Low cardiac output syndrome (LOS) is a condition that causes low perfusion and perfusion failure of the entire body's tissues due to a decline in heart contractile strength, posing a significant challenge in cardiothoracic surgical perioperative management. Appropriate myocardial protection is crucial to prevent ischemia-reperfusion injury during open-heart surgery and prevent LOS. The integrated myocardial protection method, proposed by Buckberg et al., is one technique employed for this purpose. In the treatment of LOS, interventions are made in the parameters of stroke volume and heart rate, structural abnormalities are excluded and dealt with, and mechanical assistance is utilized when necessary. With the aging and increasing severity of surgical patients, the risk of postoperative LOS is on the rise. Therefore, the application of appropriate myocardial protection and treatment methods leads to improved prognosis. It's worth noting that ensuring optimal myocardial protection during surgery and the correct application of medication and devices for intervention can significantly improve patient outcomes. With the rise in high-risk surgical cases due to aging and an increase in severe conditions, the importance of these interventions cannot be overstated.