Comparison of truview EVO2 infant laryngoscopy and direct laryngoscopy on hemodynamic parameters and intubation conditions in neonates

Abstract

Objective: The aim of this study was to compare the Truview infant EVO2 laryngoscope and the Miller straight blade laryngoscope on hemodynamic effects, laryngeal view and intubation conditions in neonates. Methods: In this prospective randomized study, 100 neonates undergoing surgery under general anesthesia were included into the study. Infants were divided into two groups: Endotracheal intubation was performed with a Truview infant blade (Group VL) or with a Miller 0 blade (Group DL). The hemodynamic parameters (heart rate and mean blood pressure, peripheric oxygen saturation, end-tidal CO2 were recorded at preoperatively, after induction, and 1, 3, 5, 10 min after intubation. Laringoscopic view was assessed with Cormack-Lehane score. Intubation conditions and complications were also recorded. Results: There were no statistical differences among demographic parameters, heart rate, mean blood pressure, peripheral oxygen saturations and Cormack-Lehane scores (p>0.05). Duration of intubation was longer with Truview laryngoscope blade than Miller blade (31.6±7.0 sec vs 19.3±4.5 sec) (p<0.0001). In DL Group, one patient experienced post-extubation hoarseness. Conclusion: It has been found that tracheal intubation with Truview EVO2 infant blade resulted in longer intubation time with similar laryngoscopic view compared to Miller blade in neonates.