Changes of heart rate variability following intravenous esmolol and surface anesthesia during tracheal intubation
- VernacularTitle:艾司洛尔与表面麻醉抑制插管反应时心率变异性的变化
- Author:
Juan LIU
;
Yun YUE
;
Qiuhua ZHAO
;
Al ET
- Publication Type:Journal Article
- Keywords:
Intubation,intratracheal;
Esmolol;
Anesthesia,local;
Heart rate variability
- From:
Chinese Journal of Anesthesiology
1997;0(11):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the changes of heart rate variability(HRV) following intravenous esmolol and surface anesthesia during tracheal intubation Methods One hundred and twenty adult patients were randomly divided into three groups (n=40), group Ⅰ (Esmolol), group Ⅱ (laryngotracheal surface anesthesia), group Ⅲ (oropharynx and laryngotracheal surface anesthesia group) Tracheal intubation was induced with fentanyl 2?g kg -1 , propforl 2mg kg -1 and vecuronium 0 1 mg kg -1 Group Ⅰ : intravenous administration of esmolol 2mg kg -1 2min before endotracheal intubation Group Ⅱ: laryngotracheal spray with 1% tetracaine 2 5ml 2min before endotracheal intubation Group Ⅲ : spraying the back of tongue, soft palate, pharynx and larynx with 1% tetracaine 0 5ml, with other manipulation being similar to group Ⅱ In each group BP,HR, HRV, LF, HF and LF/HF and BIS parameters were recorded before induction, during intubation and 1,3,5 and 10min after intubation respectively Results In three groups BP remained unchanged Compared with that in group Ⅱ and Ⅲ, HR in group Ⅰ decreased significantly(P
