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題 名 | Evaluation of Laser and Radiofrequency Induced Dorsal Root Entry Zone Lesion for Pain Control in Rats=雷射刀切斷老鼠脊髓背部神經進口區以控制痛的效應評估 |
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作 者 | 王有智; 高明見; 陶寶綠; 何霖; 楊嘉軒; 傅陽明; | 書刊名 | 中華醫學雜誌 |
卷 期 | 58:6 1996.12[民85.12] |
頁 次 | 頁421-427 |
分類號 | 416.29 |
關鍵詞 | 二氧化碳雷射; 脊髓背部神經進口區阻斷術; 磷鈦鉀雷射; 放射頻率灼燒術; CO[feaf]laser; DREZ lesion; KTP laser; RF thermocoagulation; |
語 文 | 英文(English) |
中文摘要 | 背景 脊髓背部神經進口區阻斷術應用於頑固性痛的控制,臨床應用 多主張使用放射頻率灼燒法,但理論上雷射的熱能效應為非接觸,精準且又快, 故主張用雷射的努力也在進行。本篇論文就是在比較放射頻率與雷射對脊髓背 部神經進口區阻斷術控制痛效應的探討。 方法 大白鼠在腹腔注射麻醉藥後,以顯微手術在第5頸至第1胸部位的脊髓 背側行對照組,放射頻率灼燒術組,二氧化碳雷射組及磷鈦鉀雷射組來行脊髓 背部神經進口區阻斷術 (每組8隻),同時應用熱板測痛改良法在手術前與手術 後三週作評估痛控制效應,也將脊髓鴉片受體總數作檢測,並將對照組與實驗 組件相互比較。 結果 結果顯示實驗組均比對照組有統計意義的增加前肢抬起離板時間 (p < 0.05, one-way ANOVA and Dunnett's test),實驗組中手術前與術後三週前肢抬起離 板時間,放射頻率組分別為13.9 +/- 1.4秒與65.2 +/- 4.9秒,而二氧化碳雷射組 分別為15.9 +/- 1.4秒與59.0 +/- 5.9秒,磷鈦鉀雷射組分別為14.1 +/- 0.9秒與64.8 +/- 5.7秒。至於脊髓鴉片受體總數,二氧化碳雷射組與對照組在手術後三週比 較,沒有統計意義的增加。 結論 結論是放射頻率,二氧化碳雷射與磷鈦鉀雷射行大白鼠脊髓背部神經進 口區行阻斷術,對痛控制均有效果,本試驗三者比較起來,放射頻率仍是較佳, 磷鈦鉀雷射是很接近放射頻率,再次是為二氧化碳雷射。 |
英文摘要 | Background. Dorsal root entry zone (DREZ) lesions have been believed to be effective for control of intractable pain. These lesions are usually made using radiofrequency (RF) technique. Theoretically, laser can provide very fast, precise, reproducible and easy control of photothermal effect, possibly achieving better pain control than RF. The objective here was to learn more about the effect of pain control among the RF, carbon dioxide (CO2) laser and potassium titanyl phosphate (KTP) laser in rats. Methods. The adult rat was anesthetized and the dorsal spinal cord from CS to T1 was exposed under a microscope. The DREZ lesions were created in each group of eight including sham, RF thermocoagulation, CO2 laser and KTP laser. The latency of pain withdrawal in the fore-paw by a hot-plate test was recorded before the DREZ lesions and three weeks afterward. Results. The data showed that RF, CO2 and KTP laser could significantly reduce pain in rats (p < 0.05, one-way ANOVA and Dunnett's test). Latencies of pain withdrawal in the fore-paw by the hot-plate test before, and three weeks after, DREZ lesions were 13.9 +/- 1.4 sec and 65.2 +/- 4.9 sec in the RF group, 15.9 +/- 1.4 sec and 59.0 +/- 5.9 sec in the CO2 laser group, and 14.1 +/- 0.9 sec and 64.8 +/- 5.7 sec in the KTP group, respectively. Conclusions. The density of opioid receptor in DREZ lesions cord showed no significant change three weeks after operation in the sham and CO2 laser groups. It was concluded that DREZ lesions caused by RF, CO2 laser and KTP laser can achieve pain control significantly in the rats. The effect of KTP laser was close to RF, followed by CO2 laser. |
本系統中英文摘要資訊取自各篇刊載內容。