Análise comparativa randomizada entre dois tipos de sistema de aspiração traqueal em recém-nascidos

Abstract

Objective. The objective of this study was to quantify and compare variations of oxygen saturation during the whole suction procedure (before, during and after), using two types of suction systems: open (OSS) and closed (CSS). Methods. A controlled, randomized prospective study was carried out with 39 newborn of gestational ages ≥ to 34 weeks using mechanical ventilation devices with a continuous flow, limited to pressure and cycled in time. Newborn were classified in two groups according to the ventilator parameters. Group I was ventilated using PEEP ≥ to 5 cmH2O and MAP ≥ to 8 cmH2O and Group II using PEEP < of 5 cmH2O and MAP < than 8 cmH2O. Results. No statistically significant differences among the studied variable (oxygen saturation) were found in the population under study, when the two suction systems open and closed were compared, in the two groups. The oxygen saturation was statistically high after the tracheal suction in both groups. Conclusion. Both tracheal suction systems can be used without any drawbacks of the OSS in relation to the CSS, since the casuistry is similar to the one presented in this study.