| Effect of Alternative Methods on Pain during Intravenous Administration of Propofol. |
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Seung Il Kim, Keon Sik Kim, Dong Ok Kim, Ok Young Shin, Moo Il Kwon |
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Department of Anesthesiology, College of Medicine, Kyung Hee University, Seoul, Korea. |
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| Abstract |
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Propofol is limited in clinical use for induction of anesthesia, because of its high incidence of pain on injection. We sought to determine whether different methods could prevent this pain. 150 patients were allocated randomly into five groups. Group 1 was received room-air temperature propofol 2.5 mg/kg. Group 2 was received room-air temperature propofol 2.5 mg/kg mixed with 1 ml of 1%(10 mg) lidocaine. Group 3 was received room-air temperature propofol 2.5 mg/kg just after the injection of l ml of 1%(10 mg) lidocaine. Group 4 was received room-air temperature propofol 2.5 mg/kg mixed with 1 ml of 0.5%(5 mg) lidocaine. Group 5 was received propofol 2.5 mg/kg cooled to 0-4degrees C. The pain was classified as none, mild, moderate, or severe. All patients were questioned the degree of pain in an identical manner both at induction of anesthesia and as recalled in the recovery room. There was a significant reduction in the incidnce and severity of pain in the Groups 2 and 3, which were used 10 mg of lidocaine.
But 23.3% of patients in the Group 2 and 30.0% of patients in the Group 3 still suffered unpleasant pain during the induction, and 20.0% and 26.7% of patients, respectively recalled in the recovery room. From the above results, we concluded that the pain from injection of propofol can be prevented by 1 ml of 1%(10 mg) lidocaine mixed with propofol or preinjection before propofol. |
| Key Words:
Lidocaine; Pain; Propofol |
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