[Intraoperative monitoring and its practical value in operations for tumors of the posterior cranial fossa in children].

The work is based on an analysis of the course of anesthetic aid, operative and early postoperative period in 62 patients aged from 15 months to 18 years with tumors of the posterior cranial fossa. The analysis concerned changes to the indices of systemic hemodynamics, findings of electrophysiological monitoring (electroencephalogram, acoustic stem induced potentials) and their interrelation with the outcomes of surgery. It was found that permanent disturbance of the heart rate such as bradycardia and tachycardia as well as the decreased indices of latency of peaks of the acoustic stem induced potentials and inter-peak intervals registered at the stage of removal of tumors of the posterior cranial fossa must be taken into consideration in the estimation of indications to medicinal narcosis in the postoperative period.