Accuracy of BIS and CSI for monitoring levels of sedation induced by different effect-site concentrations of propofol during TCI of propofol combined with sufentanil
- VernacularTitle:BIS和CSI监测不同效应室靶浓度异丙酚复合舒芬太尼患者镇静水平的准确性
- Author:
Mingxin HU
;
Qulian GUO
;
Tao ZHONG
- Publication Type:Journal Article
- Keywords:
Electroencephalography;
Monitoring,physiologic;
Propofol;
Drug delivery systems;
Sufentanil;
Conscious sedation
- From:
Chinese Journal of Anesthesiology
2008;28(9):836-839
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the accuracy of BIS and anesthetic depth index (CSI) for monitoring levels of sedation induced by different target effect-site concentrations (CT) during TCI of propofol combined with sufentanil. Methods Ninety ASA Ⅰ or Ⅱ patients of both sexes aged 20-49 yr weighing 45-70 kg undergoing elective surgery under general anesthesia were randomly divided into 6 groups (n=15 each): group Ⅰ, Ⅱ, Ⅲ TCI of propofol with CT set at 2, 4 and 6 μg/ml respectively (P1-3);groupⅣ, Ⅴ,Ⅵ sufentanil 0.7 μg/kg + propefol TCI with CT set at 2, 4 and 6 μg/ml (SP1-3). Anesthesia was induced with propefol TCI with CT set at 4 μg/ml in all 6 groups. As soon as the patients lost consciousness, tracheal intubation was facilitated with vecuronium 0.1 mg/kg. The patients were mechanically ventilated. PET CO2 was maintained at 35-45 mm Hg. Anesthesia was maintained with propofol TCI with CT set at 2 μg/ml(in group P1, SP1), 4 μg/ml(in group P2, SP2) and 6 μg/ml(in group P3,SP3) immediately after intubation respectively. Sufentanil 0.7 μg/kg was given iv at 20 min after propofol TCI was started in group SP<1-3. MAP, HR, BIS (Aspect) and CSI (Danmeter Denmark) were continuously monitored and recorded before induction of anesthesia (T0, baseline), at 1 min before tracheal intubation (T1), and at 30 s(T2), 15 min(T3), 30 min(T4), 35 min(T5) and 40 min (T6) after tracheal intubation. Results BIS and CSI values were gradually decreasing at T3-6 in group P1-3 and SP1-3. BIS and CSI values were significantly lower at T4-6 in group SP1 and SP2 than in group P1 and P2. CSI values were significantly lower at T4-6 in group SP3 than in group P3, but there was no significant difference in BIS values at T4-6 between SP3 and P3. Conclusion CSI and BIS can monitor the levels of sedation indueed with TCI of propofol with CT set at 2 and 4 μg/ml when combined with sufentanil 0.7 μg/kg but only CSI can monitor the level of sedation induced by propofol TCI with CT set at 6 μg/ml when combined with sufentanil 0.7 μg/kg.
