کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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2762675 | 1150723 | 2011 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Pain on injection of propofol: a comparison of methylene blue and lidocaine Pain on injection of propofol: a comparison of methylene blue and lidocaine](/preview/png/2762675.png)
Study ObjectiveTo investigate whether methylene blue, given before injection of propofol, was effective in reducing the frequency and severity of pain associated with propofol injection.DesignProspective, randomized, double-blinded clinical study.SettingOperating room of a university hospital.Patients90 adult, ASA physical status 1 and 2 patients undergoing elective surgery.InterventionsPatients were randomly allocated to one of three groups of 30 patients each. Group I received 50 mg of methylene blue, Group II received 40 mg of lidocaine, and Group III, the control group, was given normal saline. All drugs were given as a 2.0 mL bolus 45 seconds before propofol administration.MeasurementsInjection pain using vocal responses, facial grimacing, arm withdrawal, tears, and questioning of the patient were noted. A 4-point scale was used for documenting pain.Main ResultsPain frequency was 90% in the saline group, whereas the frequencies were significantly lower in the lidocaine and methylene blue groups (26.7% and 40%, respectively).ConclusionsIntravenous pretreatment with methylene blue appears to be effective in reducing the pain during propofol injection.
Journal: Journal of Clinical Anesthesia - Volume 23, Issue 4, June 2011, Pages 270–274