[Intraoperative monitoring of transcranial hemodynamics in gerontological patients under general anesthesia in abdominal surgeries].

The efficiency of up-to-date medical technologies is closely related to the development of methods and tools of objective control over the patients' state in the process of treatment. The problem of continuous control over diagnostic information occupies a special place in the medicine of critical states, since the monitoring of the patient's current state can be of vital importance. The development of tools for the monitoring of the patients' state is based on the recording of physiological data and their further evaluation with the purpose of determination of indices characterizing the operation of the most important systems of the organism.