Preliminaryes studies of variability of intracranial pressure in military personnel undergoing combat tactics training in Brazilian air force

Abstract

The noninvasive intracranial pressure system can detect micrometric alterations in cranial volume. Alterations in the circulatory and respiratory systems, increased brain tissue, or problems in the production/reabsorption relationship of cerebrospinal fluid change the ICP auto regulation. The increase in pressure and blood flow during combat tactics can substantially increase intracranial pressure (ICP). The objective of this study was to evaluate and compare the ICP waveform characteristics in Military Personnel undergoing combat tactics training, in three different body positions: supine, seated and standing. Lysis of amplitude, heart rate, time between P1 and P2 peak, and P1:P2 ratio showed no statistical difference. This was also the case following morphological analysis of the ICP waveforms for the three different body positions. These initial findings form part of an ongoing, larger study. It can be observed that, although not statistically different, there is a tendency of a small variation in the variables analyzed, when ICP waveforms in the three body positions of the volunteers were compared.

Incidence of barotrauma in the formation of cadets aviators in the Brazilian air force

“…Due to the risk of barotrauma, crew members are advised not to fly with respiratory symptoms, which are easily caused by their working conditions such as: dry air, atmospheric pressure fluctuations, air currents through open aircraft doors at airports, passenger infections and weather changes. 10 The human hearing system can be divided into three parts: the inner ear, the outer ear and the middle ear. It is in this system that the human body receives sound waves, transforms them into nerve impulses and then analyzes them in the brain.…”