Perioperative neurocognitive disorder (PND) is one of the common perioperative complications in surgical patients, which has been concerned by most researchers. With the gradual increase of the elderly population in China, the complexity of individual diseases and the risk of PND is more and more severe. In recent years, a large number of studies have confirmed the close relationship between intestinal flora and neurological diseases and various studies have also proved that gut microbiota may contribute to the occurrence and development of PND. Based on the current studies, this article summarizes the effects of gut microbiota on PND, including possible mechanisms and intervention measures, providing some ideas for researchers and treatment of PND.
Debriefing has been identified as the most critical and important component in simulation-based education. Usually, debriefing following medical simulation is facilitated by a clinician (the debriefer). However, the shortage of clinical teachers due to the huge clinical workload has been the main obstacle for simulation-based medical education. Peer debriefing has been proved to be an effective alternative strategy to instructor-based debriefing, which might not be inferior to instructor-based debriefing. This review summarizes the application of peer debriefing in simulation-based medical education, and provides useful information for future practice in healthcare simulation.