RESUMO
Cardiopulmonary bypass (CPB) is often accompanied by postoperative nerve injury in children. Studies have shown that monitoring of cerebral blood flow and cerebral oxygenation during enhanced operation can help to detect the adverse events of cerebral ischemia and hypoxia in time, guide physicians to adjust perfusion parameters in time, and can significantly reduce the incidence of postoperative nerve injury and improve the prognosis of children. Transcranial doppler (TCD) can directly reflect cerebral perfusion and indirectly reflect cerebral oxygen supply and demand by monitoring cerebral blood flow velocity, and jugular blood oxygen saturation (SjbO2) and cerebral local oxygen saturation (CrSO2) directly reflect cerebral oxygen supply and demand by monitoring cerebral oxygenation in the cerebral hemisphere. Therefore, the combined monitoring of these indexes during the perioperative period of cardiac surgery in children can reflect the cerebral oxygen supply and demand in an all-round way, and prevent the ischemic and hypoxic nerve injury. The research status has been reviewed in present paper of TCD, SjbO2 and CrSO2 in monitoring cerebral oxygen supply and demand during perioperative cardiac surgery in children with CPB in order to provide evidence for the prevention of postoperative nerve injury.