目的 调查与探讨高龄髋部骨折患者术后谵妄（POD）的发生因素,并提出相关处理对策。方法 选取2019年8月—2022年12月择在南阳市中医院独山院区进行手术治疗的高龄髋部骨折患者82例为研究对象,所有患者在术前1 d进行机械痛阈评定,在术后7 d判定患者的POD发生情况,进行POD与术前痛阈水平的相关性分析,并提出相关的处理对策。结果 术后7 d,82例患者中发生POD 12例（谵妄组）,占比14.6%,未发生POD 70例（非谵妄组）,占比85.37%。谵妄组的性别、体质指数、骨折类型、骨折至手术时间与非谵妄组对比差异无统计学意义（P>0.05）,谵妄组的年龄、术前血红蛋白水平、术前白蛋白水平与非谵妄组对比差异有统计学意义（P<0.05）。谵妄组的术前1 d的痛阈水平低于非谵妄组（P<0.05）。Spearman分析显示,POD与术前痛阈、年龄、术前血红蛋白、术前白蛋白均存在相关性（P<0.05）。Logistic回归分析显示,术前痛阈、年龄、术前血红蛋白、术前白蛋白等都为导致POD发生的影响因素（P<0.05）,要积极加强预防性护理干预。结论 高龄髋部骨折患者POD的发生率较高,患者的术前痛阈、年龄、术前血红蛋白、术前白蛋白等均为导致POD发生的影响因素,要积极加强预防性护理干预。

Objective To investigate and explore the factors leading to postoperative delirium（POD）in elderly patients with hip fractures,and to propose relevant handling measures．Methods From August 2019 to December 2022,82 cases of elderly patients with hip fractures who underwent surgical treatment in Nanyang Hospital of Traditional Chinese Medicine Dushan District were selected as the research subjects．All patients underwent mechanical pain threshold assessment 1 day before surgery,and their postoperative delirium were determined 7 days after surgery,followed by correlation analysis,and relevant handling measures were proposed．Results Seven days after surgery,there were 12 patients（delirium group）of POD,accounted for 14.6%,and 70 patients（non delirium group）without POD,accounted or 85.37%．There was no significant difference in genders,body mass index,fracture types and fracture to surgery time compared between the delirium group and the non delirium group（P>0.05）． However,there were significant differences in ages,preoperative hemoglobin levels and preoperative albumin levels compared between the delirium group and the non delirium group（P<0.05）．The pain threshold level of the delirium group on the first day before surgery was significantly lower than that of the non delirium group（P<0.05）．Spearman analysis showed that POD was associated with preoperative pain threshold,ages,preoperative hemoglobin and preoperative albumin levels（P<0.05）．Logistic regression analysis showed that the preoperative pain threshold level,ages,preoperative hemoglobin and preoperative albumin levels were all independent risk factors for the development of POD（P<0.05）,preventive nursing intervention should be actively strengthened．Conclusions The incidence of POD is high in elderly patients with hip fractures．Preoperative pain threshold level,age,preoperative hemoglobin and preoperative albumin levels are all factors that contribute to the occurrence of POD．It is necessary to actively strengthen preventive nursing interventions．

目的 评价鞘内注射雷帕霉素对CCI神经病理性痛大鼠的痛阈及脊髓背角胶质细胞表达的影响。方法 健康雄性SD大鼠30只随机分为6组:①CCI组:CCI术后14天处死;②正常对照组:不做任何处理; ③前对照剂组:鞘内置管3天后行CCI术,术后4小时后鞘内给同体积生理盐水,连给3天; ④前给药组:鞘内置管3天后行CCI术,术后4小时鞘内给雷帕霉素溶液,连给3天; ⑤后对照剂组:鞘内置管3天后行CCI术,术后7天鞘内给同体积生理盐水,连给3天;⑥后给药组:鞘内置管3天后行CCI术,术后7天鞘内给雷帕霉素溶液,连给3天。各组于CCI术前1天和术后第2、4、6、8、10、12、14天测机械痛阈和热痛阈。术后14天测痛后用多聚甲醛灌注大鼠,取L4~5脊髓,免疫组化染色,星形胶质细胞标记蛋白(GFAP)检测星形胶质细胞表达变化,并定量分析。结果 与对照组相比,CCI手术组热痛阈和机械痛阈从CCI手术后第4天开始下降(P<0.05);前后给药对照剂组与CCI组相比,差别无统计学意义(P>0.05)。前给药组痛阈从CCI手术后第4天开始上升并持续至手术后第14天,与CCI组相比,差别有统计学意义 (P<0.05)。与CCI组相比,后给药组痛阈从CCI第8天开始上升并持续至手术后第14天,差别有统计学意义(P<0.05)。 与正常对照组比较,CCI组、前、后对照剂组手术侧脊髓背角GFAP染色阳性区平均光密度与阳性面积均有增加,差别有统计学意义(P<0.05)。前、后给药组手术侧GFAP染色阳性区平均光密度与阳性面积与CCI组比较,均有明显降低,差别有统计学意义(P<0.05)。结论 鞘内注射雷帕霉素可缓解大鼠神经病理性痛,并抑制脊髓背角胶质细胞的激活。

Objective To evaluate the effects of intrathecal injection of rapamycin on pain threshold and spinal cord gliacyte activation in rats of neuropathic pain. Methods Healthy 30 male SD rats were randomly divided into 6 groups(n=5 in each group): ① control group without operation or intrathecal injection. ②CCI group without intrathecal injection. ③ intrathecal injection of rapamycin 10 μg(10 μL) 4 hours after CCI operation and the next 2 days once a day. ④ intrathecal injection of NS10 μL 4 hours after CCI operation and the next 2 days once a day. ⑤ intrathecal injection of rapamycin 10 μg(10 μL) 7 days after CCI operation and the next 2 days once a day.⑥ intrathecal injection of NS10 μL 7 days after CCI operation and the next 2 days once a day. Mechanical and thermal threshold were tested 1 day before the CCI operation and 2^th、4^th、6^th、8^th、10^th、12^th、14^th days after the CCI operation for all the rats. Lumbar segment of spinal cords was removed for determination of glial fibrillary acidic protein(GEAP) in spinal cord by immuohistochemistry dyeing and assay in the 14th day after CCI operation for all the rats. Results Mechanical and thermal hyperalgesia emerged on 4th day and maintained till 14th day after CCI operation(P<0.05). After intrathecal injection of rapamycin 4 hours or 7days after CCI, mechanical and thermal threshold significantly increased compared to intrathecal injection of NS(P<0.05). And the sum area of GFAP positive and the mean density of GFAP positive area in the dorsal horn of operation side greatly increased in rapamycin treated groups compared NS treated groups(P<0.05). Conclusion Intrathecal injection of rapamycin may attenuate CCI induced hyperalgesia and inhibit the activation of astrocyte.