Comparison the applications of tracheal intubation with GlideScope video laryngoscope and Macintosh direct laryngoscope in snoring patients / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To compare the efficacy and safety of applications of GlideScope video laryngoscope (GSVL) and Macintosh direct laryngoscope (MDLS) during endotracheal intubation under general anesthesia of abdominal snoring surgeries.@*METHOD@#Forty patients ranged from American Society of Anesthesiologists I to II scheduled for snoring surgery under general anesthesia with endotracheal intubation were randomly divided into GSVL group and MDLS group (20 cases in each group), After traditional induction, endotracheal intubation (ETT) performed by GSVL or MDLS. Glottic exposure, the time of endotracheal intubation(from mask ventilation ending to successful intubation), the times of tracheal intubation operation were recorded in both groups. The mean artery pressure(MAP), heart rate(HR) were monitored before induction (basic value T0), before tracheal intubation (T1), after tracheal intubation (T2), 1 min after tracheal intubation (T3), 3 mins after tracheal intubation (T4).@*RESULT@#The glottic exposure of GSVL group is superior to that of MDLS group. There was no significant difference in the time of tracheal intubation between MDLS group (27 +/- 11)s and GSVL group (26 +/- 11)s (P 0.05). MAP of T2 and T3 increased and HR became faster (P 0.05).@*CONCLUSION@#Compared with MDLS,the GSVL is of benefit to improve the glottic exposure in endotracheal intubation to the snoring patients,so as to improve the success rate of tracheal intubation. But there is no obvious advantages via GSVL in preventing hemodynamic reaction during tracheal intubation.

The effect of dexmedetomidine on post-operative blood pressure after controlled hypotension in endoscopic sinus surgery / 临床耳鼻咽喉头颈外科杂志

OBJECTIVE@#To observe the variance of blood pressure (BP) after controlled hypotension in endoscopic sinus surgery with dexmedetomidine.@*METHOD@#Sixty patients undergoing elective endoscopic sinus surgery were randomly assigned to receive dexmedetomidine (Group D) or physiological saline (Group S). For the two groups, after the same induction of anesthesia procedure, Group D were injected with dexmedetomidine with 0.8 microg/kg of priming dose in 10 min and 0.5 microg/(kg x h) of maintenance dose i. v. drip for 30 min. The Group S were injected with physiological saline in the dose the same as Group D. The measurement of the mean aortic pressure(MAP), heart rate (HR) and the colouration of the Nasal packing material and exudation were taken at the end of the surgery (T1), at the time of extubation (T2), 10 min after extubation (T3), 30 min after extubation (T4), 2 h after extubation (T5), and 4 h after extubation (T6).@*RESULT@#The MAP and HR of Group S at the points T2-T6 were significantly higher compared with those at the point T1 (P 0.05). The MAP and HR of Group S at each time point were higher compared with Group D (P < 0.05). The number of cases with postoperative nasal exudate in Group S was significantly more than in Group D (27:18) (P < 0.05).@*CONCLUSION@#The perioperative dexmedetomidine medication can significantly reduce fluctuations in BP in endoscopic sinus surgery, so that to stable hemodynamics and reduce nasal bleeding.