Point of care ultrasound evaluation of cardio-cerebral coupling

Figure 1 Maintain the intracranial pressure. A: Monro-Kellie law. Brain compartments with their respective volumes and percentage of total volume; B: Langfitt’s pressure-volume curve showing the delay in pressure increase relative to volume increase, which suggests the existence of a compensatory mechanism. The generated pressure, calculated as force/area, is a consequence of the displaced volume. Firstly, the first capacitance system, the venous volume, is displaced, followed by the cerebrospinal fluid, and finally the arterial volume. F/A: Force/area; CSF: Cerebrospinal fluid.