| Hemodynamic Responses of Pretreatments Designed to Reduce Withdrawal Movements Following Rocuronium Injection: A Comparison of Alfentanil with Lidocaine. |
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Sun Eun Park, Se Hun Park, Young Woo Cho, Hee Won Son, Ji Ho Lee, Dae Young Kim |
1Department of Anesthesiology and Pain Medicine, Ulsan University Hospital, Ulsan University College of Medicine, Ulsan, Korea. ywcho67@ulsan.ac.kr
2Department of Occupational and Environmental Medicine, Ulsan University Hospital, Ulsan University College of Medicine, Ulsan, Korea. |
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| Abstract |
BACKGROUND
This study was conducted to compare the efficacy of intravenous alfentanil and lidocaine as a pretreatment for the prevention of withdrawal movements following a rocuronium injection and hemodynamic change following tracheal intubation.
METHODS
This study evaluated 180 patients that were divided into the following 3 pretreatment groups: group C: normal saline, group L: lidocaine 1 mg/kg, group A: alfentanil 10microgram/kg. Anesthesia was induced using 5 mg/kg thiopental sodium, after which the test drug was injected.
Rocuronium (1 mg/kg) was then administered 1 minute after the test drug was injected over 5 seconds and the response was characterized as one of the following: no movement, movement limited to the wrist, to the elbow or to the shoulder. Intubation was performed 1 minute later. Systolic blood pressure (SBP), diastolic blood pressure (DBP) and heart rate (HR) were then recorded at each of the following points: T1: preinduction, T2: immediately prior to rocuronium injection, T3: immediately after rocuronium injection, T4: immediately prior to intubation, T5: immediately after intubation, T6: 1 minute after intubation, T7: 5 minutes after intubation.
RESULTS
The incidence of withdrawal movement was significantly lower in group A than groups C and L (P < 0.05). In addition, SBP, DBP and HR following intubation were significantly lower in group A than group C and group L (P < 0.05).
CONCLUSIONS
Pretreatment with 10microgram/kg of alfentanil effectively reduced the incidence of withdrawal movement in response of rocuronium injection and caused minimal hemodynamic changes following intubation. |
| Key Words:
alfentanil; hemodynamic change; lidocaine; rocuronium; withdrawal movement |
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