摘要:目的:探討通過腹腔內注射局部麻醉藥在腹腔鏡膽囊切除術中的鎮痛效果。方法:52例患者隨機分為4組,Ⅰ組術前腹腔內噴灑0.75％羅哌卡因20 mL;Ⅱ組術后腹腔內噴灑0.75％羅哌卡因20 mL;Ⅲ組為術后腹腔內噴灑0.5％布比卡因20 mL;Ⅳ組術后腹腔內噴灑生理鹽水20 mL。麻醉方法均為全憑靜脈麻醉。術后1、2、3、4 h 4個時間點記錄患者術后疼痛視覺模擬評分(VAS)。并觀察4組術后使用鎮痛藥物的例數和肩背痛、惡心嘔吐發生率。結果:術后1、2、3、4 h VAS評分Ⅱ組lt;Ⅲ組lt;Ⅰ組lt;Ⅳ組(Plt;0.05)。Ⅳ組使用鎮痛藥物的例數明顯高于Ⅰ組、Ⅱ組和Ⅲ組(Plt;0.05)。4組術后肩背痛、惡心嘔吐發生率差異無顯著性(Pgt;0.05)。結論:經腹腔給局麻藥鎮痛效果明顯,術畢給藥鎮痛效果優于術前給藥,羅哌卡因鎮痛效果優于布比卡因。Abstract: Objective: To investigate the effect of intraperitoneal local anesthetic on patients undergone laparoscopiccho1ecystectomy.Methods:Fiftytwo patients were randomly divided into four groups. Group Ⅰ received preoperational anesthetic spary with 20 mL of 0.75％ ropivacaine. Group Ⅱ was given the anesthetic ata same dosage after the operation. Group Ⅲ received preoperational anesthetic spary with 20 mL of 0.5％ bupivacaine. Group Ⅳ received preoperational anesthetic spary with 20 mL saline. The LC was completed under general anesthesia.After the operation,visual analog scale (VAS)was recorded at 1,2,3 and 4 hours to evaluate the degree of postoperative pain.Meanwhile,the number of the patients who received anesthetics after the surgery,as well as the incidence rates shoulder or back pain and nausea or vomiting were recorded. Results: Postoperative VAS of the group Ⅱ was significantly lower than that of the other three groups, while the VAS of group Ⅲ was significantly lower than that in group Ⅰ(both Plt;0.05).Compared to groups Ⅰ, Ⅱ and Ⅲ,more patients in the group Ⅳ needed anesthetics after the operation (Plt;0.05).No significant diference was noticed in the incidence rates of shoulder or back pain and nausea or vomiting among the four groups (Pgt;0.05).Conclusions: Intraperitoneal local anesthetic can significantly reduce postoperative pain after LC. It is more effective to give local anesthetic at the end of the procedure than using it before operation. The effect of ropivacaine is better than bupivacaine.
摘要:目的:定量測定50 %小兒在喉罩表面涂抹丁卡因膠漿的情況下平穩拔除喉罩時呼氣末七氟烷濃度。方法:25例擇期行四肢及體表手術的患兒,高流量吸入七氟烷誘導并以七氟烷和氧化亞氮維持麻醉,不使用肌肉松弛劑及靜脈麻醉藥物,手術結束后停止吸入氧化亞氮,并維持設定的七氟烷濃度10min后拔除喉罩。根據Dixon序貫法確定喉罩拔除時的七氟烷濃度,每0.1 Vol%七氟烷為1個增減單位。患兒未出現咳嗽、牙關緊閉、體動、屏氣及喉痙攣則認為拔除喉罩平穩。結果:50 %小兒平穩拔除喉罩時呼氣末七氟烷濃度(EC50)為1.22 Vol%(95 %的置信區間分別為0.99 Vol%～1.49 Vol%)。結論:在喉罩表面涂抹丁卡因膠漿的情況下,3～8歲患兒喉罩滿意拔除時呼氣末七氟烷EC50值為1.22 Vol%。Abstract: Objective: To determine the concentration of sevoflurane where 50%( EC50 ) of the attempts to remove the laryngeal mask airway (LMA ) with the Teracainum Gel would be successful in children. Methods: Twentyfive nonpremedicated children, aged 38 years old, ASA physical status I, scheduled for extremities or peripherical surgery were enrolled in this study. General anesthesia was induced with sevoflurane and maintained with sevoflurane and nitrous oxide in oxygen. After the surgery, the target concentration was maintained for at least 10 min, and then the LMA was removed. Each target concentration was predetermined by the Dixon’s upanddown method (with 0.1 Vol% as a step size), starting at 1.20 Vol% concentration of sevoflurane. A removal accomplished without coughing, teeth clenching, gross purposeful movement, breath holding or laryngospasm, during or within 1 min after removal was considered to be successful. Results:The concentration of sevoflurane to achieve successful LMA removal in 50% of children was 1.22 Vol% (95%CL, 0.99 Vol%1.49 Vol%). Conclusion: The EC50 value of sevoflurane for LMA smooth extubation in children aged 38 years old with teracainum gel was 1.22 Vol%.
