One of the medications administered to patients in general anesthesia practice is rocuronium, which causes pain during intravenous administration. It is known that a drug containing lidocaine as the active ingredient can reduce the pain caused by rocuronium in different doses. The effective dose of lidocaine remains a topic of debate. In our study, we aimed to investigate the efficacy of two different doses of lidocaine. No adverse effects are expected from this medication.
The patients were randomly divided into three groups by a simple drawing-lots method: control group (Group C), 40 mg lidocaine group (Group L) and 1 mg/kg lidocaine group (Group L1). All patients were taken to the operating room without premedication and standard monitoring was applied. A 20 G intravenous catheter was inserted on the dorsum of the patients' non-dominant hand, and 100 ml/hour of physiological saline solution was infused over a 5-minute period. After randomization, 5 ml of isotonic solution was administered to the control group, 40 mg of lidocaine to the L group, and 1 mg kg-1 of lidocaine intravenously to the L1 group. Patients were administered 0.06 mg/kg of rocuronium, and they were asked, "Do you feel any pain or discomfort in your arm?" The pain intensity expressed by the patient was evaluated and recorded using the 5-point pain scale. After induction and intubation, the patients' blood pressure, pulse, and saturation values were recorded.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
TRIPLE
Enrollment
210
We injected 40 mg lidocain before rocuronium injection. Then we recorded pain score by using visual analog scale.
We injected 1 mg/kg lidocain before rocuronium injection. Then we recorded pain score by using visual analog scale.
We injected serum physiologic before rocuronium injection. Then we recorded pain score by using visual analog scale.
Giresun University
Giresun, Turkey, Turkey (Türkiye)
Giresun Training and Research Hospital
Giresun, Turkey (Türkiye)
Visual analog score after the injection
We described Visual analog scale to the patient before the day of surgery. On the visual analog scale, a score of 10 is the worst pain in life, while a score of 0 is no pain. The patient is asked to give a score to his pain caused by rocuronium injection and the score is recorded.
Time frame: From enrollment to the end of injection at 5 minutes.
Changes on heart rate
All patients who will receive general anesthesia are routinely monitored with electrocardiogram, noninvazive blood pressure and oxygen saturation. We recorded heart rate as beat per minute before and after the injections during 20 minutes.
Time frame: Hemodynamic parameters were recorded 5 minutes intervals. Adverse effects of the drug were observed during 5 minutes after the injection.
Changes on noninvasive blood pressure
All patients who will receive general anesthesia are routinely monitored with electrocardiogram, noninvazive blood pressure and oxygen saturation. We recorded noninvasive blood pressure as mmHg before and after the injections during 20 minutes.
Time frame: Hemodynamic parameters were recorded 5 minutes intervals. Adverse effects of the drug were observed during 5 minutes after the injection.
Changes on oxygen saturation
All patients who will receive general anesthesia are routinely monitored with electrocardiogram, noninvazive blood pressure and oxygen saturation. We recorded oxygen saturation as percentage before and after the injections during 20 minutes.
Time frame: Hemodynamic parameters were recorded 5 minutes intervals.
Adverse effects
After the injection of the drug we observed any side effect such as metallic taste, erythema, swelling, itching, allergic reaction.
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Time frame: Adverse effects of the drug were observed during 5 minutes after the injection.