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作 者:罗芳[1] 于晓彤[2] 李多依[1] 黄佑庆[3] 吴大胜[4] 崔健君[5] 刘延青[1] 樊碧发[6]
机构地区:[1]首都医科大学附属北京天坛医院疼痛中心,北京100050 [2]上海理工大学医疗器械与食品学院,上海200093 [3]昆明医学院附属第二医院疼痛科,昆明650101 [4]吉林省人民医院疼痛科,长春130021 [5]中国医科大学盛京医院疼痛科,沈阳110004 [6]中日友好医院疼痛科,北京100029
出 处:《中国疼痛医学杂志》2012年第12期742-745,共4页Chinese Journal of Pain Medicine
摘 要:目的:体外应用蛋清实验探讨调节脉冲射频的频率及温度参数的安全性。方法:用Baylis疼痛射频治疗仪自动脉冲射频模式下分别设定脉冲射频的频率为2 Hz和4 Hz,不同频率下分别设定温度为42℃、44℃、46℃、48℃、50℃、55℃、60℃、70℃和80℃;在37℃恒温水浴箱内进行新鲜蛋清实验。记录组织实际温度、电压和电阻。结果:频率为2 Hz时,随设定温度的升高,组织最高可达51±1℃、脉冲电压最高可达83±1 V,各温度组均未观察到肉眼可见的热凝物。频率为4 Hz时,随设定温度的升高,组织最高可达72±1℃、脉冲电压最高可达75±2 V,设定为60℃、70℃和80℃时穿刺针周围均可见热凝物形成。结论:频率2 Hz同时升高设定温度可升高射频电压;频率4 Hz同时升高设定温度60℃以上可发生组织变性,临床工作中应注意避免。Objective: To investigate the safety of the frequency and temperature parameters of pulsed radiofrequency by egg white experiment. Methods: The temperature was settled on 42℃, 44℃, 46℃, 48℃, 50℃, 52℃, 55℃, 60℃, 70℃ and 80℃, at 2 Hz and 4 Hz respectively under automatic pulsed radiofrequency mode by Baylis pain radiofrequency instrument. The fresh egg white experiment was performed in 37 ℃ thermostatic water bath trunk. The changes of tissue actual temperature, voltage, and electric resistance were recorded. Results: At 2 Hz, with the increase of settled temperature, the highest temperature of tissue was 51 ± 1 ℃, the highest voltage was 83 ± 1 V. No macroscopic thermoset was observed in each temperature group at 2 Hz. While at 4 Hz, with the increase of settled temperature, the highest temperature of tissue was 72 ± 1 ℃, the highest voltage was 75 ± 2 V. Macroscopic thermoset was observed in 60℃, 70℃, and 80℃ group at 4 Hz pulsed radiofrequency. Conclusion: The output voltage of Baylis pain management generator will increase when the settled temperature is increased at 2 Hz. When the settled temperature is increased at 4 Hz, the temperature of the egg white will increase above 60 ℃ and cause tissue coagulation, whicch should be avoided in clinical practice.
分 类 号:R741[医药卫生—神经病学与精神病学]
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