Cerebral oxygenation is not always reflected by systemic arterial oxygenation. Therefore, regional cerebral oxygen saturation (rScO2) monitoring with near-infrared spectroscopy (NIRS) is of added value in neonatal intensive care. rScO2 represents oxygen supply to the brain, while cerebral fractional tissue oxygen extraction, which is the ratio between rScO2 and systemic arterial oxygen saturati...

In coronary sclerotic patients with a fixed coronary vascular resistance, coronary blood flow is to be directly regulated by perfusion pressure. In this report, an analysis of perfusion pressure was carried out regarding coronary blood flow, myocardial oxygen consumption, and myocardial oxygen supply. Fourteen patients with coronary sclerosis were studied. In resting state, mean diastolic press...

liver is one of the most important organs needing great concern during the perioperative period. there are a number of different mechanisms that interact with liver cells and might affect their integrity and cell live. though these mechanisms are not all the same, there is a great common point: all affect the metabolic pathways of the liver. ischemia, anesthetic drug effects and other periopera...