title: Hemodynamic responses of thiopental and propofol in different-aged patients during endotracheal intubation.
abstract: BACKGROUND
  Thiopental and propofol are 2 popularly used anesthetic induction agents that have different pharmacological and pharmacokinetic actions. It is not clear how the hemodynamic responses differ in different-aged patients using these 2 drugs for anesthetic induction. The aim of this study was to investigate the hemodynamic responses to propofol and thiopental of different-aged patients during endotracheal intubation.
  
  
  METHODS
  Sixty patients, 20 to 83 years old, were included in this study. Patients were randomly divided into 6 groups according to age and different inductive anesthetics. Non-invasive blood pressure (NIBP) monitoring was performed every minute before anesthesia, during anesthetic induction with 5 mg.kg-1 thiopental or 2 mg.kg-1 propofol intravenously, and after intubation.
  
  
  RESULTS
  Propofol induction produced a smaller mean arterial pressure increase immediately after intubation than did thiopental induction in adult and elderly groups (101.0 +/- 18.5 and 104.0 +/- 21.1 mmHg in the propofol groups vs. 138.3 +/- 17.1 and 138.9 +/- 16.1 mmHg in the thiopental groups at 1 minute after intubation, p < 0.001 and p = 0.001, respectively). Differences in heart rate between propofol and thiopental groups were found in young and adult groups (85.1 +/- 9.2 and 81.7 +/- 10.9 in the propofol groups vs. 94.5 +/- 9.9 and 95.0 +/- 14.0 beats per minute in the thiopental groups at 1 minute after intubation, p = 0.041 and p = 0.029, respectively).
  
  
  CONCLUSIONS
  Propofol induction produced more stable hemodynamics after intubation in adult and elderly patients than did thiopental induction. Therefore, it is safer to use propofol for induction and intubation in adult and elderly patients.
authors.affiliation: Department of Anesthesiology, Chang Gung Memorial Hospital, 5, Fu-Shin Street, Kweishan, Taoyuan, Taiwan, R.O.C.
authors.forename: C Y
authors.initials: CY
authors.lastname: Yang
authors.forename: J C
authors.initials: JC
authors.lastname: Hsu
authors.forename: C M
authors.initials: CM
authors.lastname: Lin
authors.forename: S J
authors.initials: SJ
authors.lastname: Huang
authors.forename: H S
authors.initials: HS
authors.lastname: Chung
authors.forename: M H
authors.initials: MH
authors.lastname: Shyr
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D018686:Anesthetics, Intravenous / Q000494:pharmacology*; D006439:Hemodynamics / Q000187:drug effects*; D006801:Humans; D007442:Intubation, Intratracheal; D008875:Middle Aged; D015742:Propofol / Q000494:pharmacology*; D013874:Thiopental / Q000494:pharmacology*
chemical_list: D018686:Anesthetics, Intravenous; D013874:Thiopental; D015742:Propofol