The relevant data.

ObjectiveTo assess the efficacy and safety of visual rigid laryngoscopy and video laryngoscopy and to provide clinical information for developing a more suitable intubation tool for elderly patients.MethodsIn 75 consecutive elderly patients undergoing elective surgery in a single institution, tracheal intubation was randomly performed by 2 experienced anaesthesiologists using visual rigid laryngoscopy (Group I, n = 38) or video laryngoscopy (Group II, n = 37). The primary outcome was intubation time. Secondary outcomes were the first-attempt success rate of tracheal intubation, haemodynamic responses at 1, 3, and 5 min after intubation and the incidence of postoperative airway complications, including immediate complications and postoperative complaints.ResultsThe intubation times were 35.0 (30.0–41.5) s and 42.5 (38.0–51.3) s in Groups I and II, respectively (P P P > 0.05). There was no difference in the intubation success rate between the 2 groups (P > 0.05). The haemodynamic responses at 1, 3, and 5 min after intubation were not significantly different (P > 0.05).ConclusionCompared with that of video laryngoscopy, the intubation time of visual rigid laryngoscopy in elderly patients was shorter. At the same time, visual rigid laryngoscopy reduced the incidence of immediate complications. However, during endotracheal intubation, there was no significant difference in haemodynamics between the two groups.Clinical trial registration numberChiCTR2100054174.