Intraoperative jugular venous oxygen saturation(Sjv O2) monitoring has been widely usedin clinic, which can monitor cerebral blood flow(CBF) and oxygen metabolism. Reverse puncture andcatheterization through jugular vein for monitoring Sjv O2 is easy to operate and can collect blood samplesrepeatedly. It is an effective method for real-time dynamic evaluation of cerebral oxygen supply-demandand neurological function. This article reviews the clinical significance and influencing factors of Sjv O2 monitoring...