Impact of orotracheal intubation by Macintosh laryngoscopy versus Shikani optical stylet on blood pressure and heart rate / 实用医学杂志

ABSTRACT

Objective To compare the hemodynamic response to orotracheal intubation by Macintosh laryngoscopy (MAC) with Shikani optical stylet (SOS). Methods Forty neurosurgical patients, ASA physical status Ⅰ~Ⅲ, were prospectively randomized to MAC group (n = 20) and SOS group (n = 20) according to the method of orotracheal intubation. Heart rate (HR) and invasive systolic blood pressure (SBP) were recorded at pre- and post-intubation. Results The intubation time was significantly longer in SOS group than in MAC group [(22 ± 8) s vs. (17 ± 8) s, P < 0.05]. SBP in both groups decreased significantly after induction (P < 0.05) and increased greatly at 1 and 2 min post-intubation (P < 0.05), but did not differ at 3, 4 and 5 min. HR in both groups did not differ significantly between the SBP after induction. HR in both groups increased greatly at 1 and 2 min post-intubation (P < 0.05), but did not differ markedly at 3, 4 and 5 min after induction. There were no significant differences in the peak SBP and HR between the two groups. Conclusion MAC and SOS cause similar hemodynamic responses to orotracheal intubation.