Unique ID issued by UMIN | UMIN000024495 |
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Receipt number | R000028185 |
Scientific Title | Comparison of the effect of continuous intravenous infusion and two bolus injections of remifentanil on haemodynamic responses during anaesthesia induction: a prospective open-label randomised trial |
Date of disclosure of the study information | 2016/10/20 |
Last modified on | 2016/10/19 23:55:20 |
Comparison of the effect of continuous intravenous infusion and two bolus injections of remifentanil on haemodynamic responses during anaesthesia induction: a prospective open-label randomised trial
Comparison of the effect of continuous intravenous infusion and bolus injections of remifentanil on haemodynamic responses during anaesthesia induction
Comparison of the effect of continuous intravenous infusion and two bolus injections of remifentanil on haemodynamic responses during anaesthesia induction: a prospective open-label randomised trial
Comparison of the effect of continuous intravenous infusion and bolus injections of remifentanil on haemodynamic responses during anaesthesia induction
Japan |
Induction of anaesthesia
Anesthesiology |
Others
NO
Remifentanil is a rapid-onset and ultra-short acting opioid. Since laryngoscopy and tracheal intubation can result in tachycardia and hypertension, remifentanil is commonly used not only to maintain anaesthesia, but also to attenuate adverse haemodynamic changes due to tracheal intubation. To raise the effect-site concentration of remifentanil quickly, it is infused at higher concentrations or injected in bolus doses prior to constant continuous infusion. However, differences in haemodynamics during anaesthesia induction between continuous infusion and bolus injection of remifentanil have not yet been investigated. In addition, it remains unclear which method is best suited to hypertensive patients in whom tachycardia and hypertension by intubation may be exaggerated.
The aims of this randomised open-label study were to compare the haemodynamic responses during anaesthesia induction between continuous intravenous infusion and bolus injections of remifentanil in normotensive patients, as well as in treated and untreated hypertensive patients.
Safety,Efficacy
heart rate and non-invasive blood pressure immediately before tracheal intubation
1) heart rate and blood pressure immediately after tracheal intubation
2) heart rate and blood pressure during anaesthesia induction
3) adverse events (HR or SBP decreased to less than 50 bpm or 70 mmHg)
4) use of ephedrine: If HR or SBP decreased to less than 50 bpm or 70 mmHg respectively, IV of 4 mg ephedrine was deemed necessary
Interventional
Parallel
Randomized
Individual
Open -no one is blinded
Active
YES
YES
2
Treatment
Medicine |
remifentanil administration type: the continuous intravenous (IV) infusion group (Group C)
remifentanil administration type: the IV bolus group (Group B)
20 | years-old | <= |
90 | years-old | > |
Male and Female
American Society of Anesthesiologists physical status (ASA) I-II patients scheduled for elective surgery under general anaesthesia were prospectively enrolled.
Exclusion criteria included patients younger than 20 years of age and with the presence of cardiovascular or cerebrovascular disease, renal failure, or a predicted difficult airway. If tracheal intubation was not performed within 1 minute, this patient was excluded.
60
1st name | |
Middle name | |
Last name | Toyoaki Maruta |
Miyazaki Medical College, University of Miyazaki
Departments of Anesthesiology
Miyazaki 889-1692, Japan
0985-85-1742
mmctm2@yahoo.co.jp
1st name | |
Middle name | |
Last name | Toyoaki Maruta |
Miyazaki Medical College, University of Miyazaki
Departments of Anesthesiology
Miyazaki 889-1692, Japan
0985-85-1742
mmctm2@yahoo.co.jp
University of Miyazaki
University of Miyazaki
Government offices of other countries
NO
2016 | Year | 10 | Month | 20 | Day |
Unpublished
A total of 107 patients were recruited from October 2013 to June 2015.There were 82 normotensive patients older than 20 years of age (n = 41 in both groups), 14 treated HT patients (n = 7 in both groups) and 11 untreated HT patients (n = 7 in Group C and n = 4 in Group B). Both the treated and untreated HT subgroups were compared between Group C and Group B. In both normotensive and treated HT patients, there were no significant differences between Group C and Group B in age, gender, height, weight, BMI, and ASA.
Comparisons of HR, SBP, diastolic blood pressure (DBP), and mean blood pressure (MBP) in normotensive patients between Group C and Group B: There were no significant differences between the groups for any parameters at any time points. When compared to baseline, HR was not significantly different at any time points in either group.
Comparisons of HR, SBP, DBP, and MBP within treated and untreated HT patients between Group C and Group B: There were no significant differences between groups for any parameters at any time points in each subgroup.
Use of additional propofol and adverse events including HR < 50 bpm, SBP < 70 mmHg, and use of ephedrine: There were no significant differences between groups in each subgroup.
Completed
2013 | Year | 10 | Month | 03 | Day |
2013 | Year | 10 | Month | 18 | Day |
2015 | Year | 06 | Month | 18 | Day |
2015 | Year | 06 | Month | 18 | Day |
2016 | Year | 05 | Month | 18 | Day |
2016 | Year | 05 | Month | 18 | Day |
2016 | Year | 10 | Month | 19 | Day |
2016 | Year | 10 | Month | 19 | Day |
Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000028185
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