国际麻醉学与复苏杂志   2022, Issue (7): 3-3
    
瑞马唑仑对麻醉诱导期脑电双频指数及血流动力学的影响
段声吉, 周述芝1()
1.川北医学院麻醉学系
Effect of remimazolam on bispectral index and hemodynamics during anesthesia induction
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摘要:

目的 探讨瑞马唑仑对全麻患者麻醉诱导期BIS和血流动力学的影响。 方法 选择气管插管全麻患者92例,按随机数字表法分为瑞马唑仑组(R组)和丙泊酚组(P组),每组46例。R组泵注瑞马唑仑0.4 mg/kg(24 mg·kg−1·h−1),P组泵注丙泊酚2 mg/kg(120 mg·kg−1·h−1)。两组患者BIS≤60后静脉注射苯磺顺阿曲库铵0.2 mg/kg、舒芬太尼0.3 μg/kg,行气管插管。记录两组患者镇静起效时间(诱导开始至BIS≤60的时间),诱导前(T0)、插管前(T1)、插管后(T2)的心率、MAP、BIS,诱导过程中镇静补救、术中知晓、心动过缓、低血压、高血压和注射痛的发生情况。 结果 R组患者镇静起效时间长于P组(P<0.05)。两组患者各时点BIS比较,差异均无统计学意义(P>0.05)。两组患者T0时心率、MAP差异均无统计学意义(P>0.05);与P组比较,R组患者T1时心率高于P组(P<0.05),T1、T2时MAP高于P组(P<0.05);与T0比较,P组患者T1时心率降低,T1、T2时MAP降低(P<0.05)。两组患者在麻醉诱导过程中均无镇静补救、术中知晓及高血压发生;P组患者低血压和注射痛发生率高于R组(P<0.05);两组患者心动过缓发生率差异无统计学意义(P>0.05)。 结论 瑞马唑仑0.4 mg/kg(24 mg·kg−1·h−1)用于全麻诱导镇静起效时间较长,但镇静效果良好、血流动力学更稳定。

关键词: 瑞马唑仑; 丙泊酚; 麻醉诱导; 脑电双频指数; 血流动力学
Abstract:

Objective To investigate the effects of remimazolam on bispectral index (BIS) and hemodynamic changes during the induction of general anesthesia. Methods A total of 92 patients who underwent endotracheal intubation under general anesthesia were selected. According to the random number table method, they were divided into two groups (n=46): a remimazolam group (group R) and a propofol group (group P). Group R was infused by pump with 0.4 mg/kg remimazolam at a rate of 24 mg·kg−1·h−1, while group P was infused by pump with 2 mg/kg propofol at a rate of 120 mg·kg−1·h−1. When bispectral index (BIS)≤60, patients in both groups were intravenously injected with 0.2 mg/kg cisatracurium and 0.3 μg/kg sufentanil for endotracheal intubation. Then, the time from induction to BIS≤60 was recorded. Their heart rate (HR), mean artery pressure (MAP), BIS before induction (T0), before endotracheal intubation (T1), and after endotracheal intubation (T2) were recorded. The rescue sedation, intraoperative awareness and the incidence of bradycardia, hypotension, hypertension, and injection pain during the induction of anesthesia were recorded. Results Group R presented longer sedation onset time than group P (P<0.05). There was no statistical difference in BIS value between the two groups at each time point (P>0.05). There was no statistical difference in HR and MAP between the two groups at T0 (P>0.05). Compared with group P, group P showed increases in HR at T1 and in MAP at T1 and T2 (P<0.05). Compared with those at T0, group P presented decrease in HR at T1 and decreases in MAP at T1 and T2 (P<0.05). No rescue sedation, intraoperative awareness and hypertension occurred during anesthesia induction in both groups. The incidences of hypotension and injection pain in group P was higher than those in group R (P<0.05). There was no statistical difference in the incidence of bradycardia between the two groups (P>0.05). Conclusions Administration of 0.4 mg/kg remimazolam at a rate of 24 mg·kg−1·h−1 requires long sedation onset time, but can produce good sedation with stable hemodynamics during induction of general anesthesia.

Key words: Remimazolam; Propofol; Induction of anesthesia; Bispectral index; Hemodynamics