Journal of clinical anesthesia · 2009
Rapid injection of rocuronium reduces withdrawal movement on injection.
СтатьяРандомизированное исследованиеПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Lee Yong Cheol, Jang Young Ho, Kim Jin Mo, Lee Sang Gyu
Аннотация
STUDY OBJECTIVE: To test whether rapid injection of rocuronium reduces withdrawal movement on injection.
DESIGN: Randomized, prospective trial.
SETTING: Operating room in a university hospital.
PATIENTS: 150 ASA physical status I and II patients aged 18 to 60 years, undergoing general anesthesia.
INTERVENTIONS: Patients were randomized to three groups. After undergoing anesthesia induction with thiopental sodium, then 5 seconds later receiving a rubber tourniquet applied to the mid-forearm to stop intravenous (IV) flow by gravity, the pretreatment drug was injected. The tourniquet was held for 15 seconds then released, and 1.0 mg/kg of 1% rocuronium was injected IV. Group C patients (n = 50) were pretreated with 0.1 mL/kg of 0.9% NaCl and then injected with rocuronium slowly within 10 seconds. Group L patients (n = 50) were pretreated with 0.1 mL/kg of preservative-free 1% lidocaine and then injected with rocuronium slowly within 10 seconds. Group R patients (n = 50) were pretreated with 0.1 mL/kg of 0.9% NaCl and then rapidly injected with rocuronium within approximately one second (as quickly as possible).
MEASUREMENTS: After injection of the patient with the study drug, a single anesthesiologist with no knowledge of the study protocol graded each patient's response as follows: 0 = no response; 1 = mild movement limited to the wrist only; 2 = moderate movement involving the elbow and shoulder; and 3 = severe movement involving more than one extremity.
MAIN RESULTS: Group C had the most intense and frequent withdrawal response. The frequency and intensity of withdrawal movement was significantly less in Groups L and R than Group C. No significant difference in withdrawal response between Groups L and R was noted.
CONCLUSIONS: Withdrawal response can be significantly reduced for rocuronium injection without lidocaine pretreatment, simply through rapid injection.
DESIGN: Randomized, prospective trial.
SETTING: Operating room in a university hospital.
PATIENTS: 150 ASA physical status I and II patients aged 18 to 60 years, undergoing general anesthesia.
INTERVENTIONS: Patients were randomized to three groups. After undergoing anesthesia induction with thiopental sodium, then 5 seconds later receiving a rubber tourniquet applied to the mid-forearm to stop intravenous (IV) flow by gravity, the pretreatment drug was injected. The tourniquet was held for 15 seconds then released, and 1.0 mg/kg of 1% rocuronium was injected IV. Group C patients (n = 50) were pretreated with 0.1 mL/kg of 0.9% NaCl and then injected with rocuronium slowly within 10 seconds. Group L patients (n = 50) were pretreated with 0.1 mL/kg of preservative-free 1% lidocaine and then injected with rocuronium slowly within 10 seconds. Group R patients (n = 50) were pretreated with 0.1 mL/kg of 0.9% NaCl and then rapidly injected with rocuronium within approximately one second (as quickly as possible).
MEASUREMENTS: After injection of the patient with the study drug, a single anesthesiologist with no knowledge of the study protocol graded each patient's response as follows: 0 = no response; 1 = mild movement limited to the wrist only; 2 = moderate movement involving the elbow and shoulder; and 3 = severe movement involving more than one extremity.
MAIN RESULTS: Group C had the most intense and frequent withdrawal response. The frequency and intensity of withdrawal movement was significantly less in Groups L and R than Group C. No significant difference in withdrawal response between Groups L and R was noted.
CONCLUSIONS: Withdrawal response can be significantly reduced for rocuronium injection without lidocaine pretreatment, simply through rapid injection.