目的 分析老年患者腰-硬联合麻醉术中给予不同剂量瑞马唑仑的有效性及安全性。方法 纳入2020年5月—2023年4月在武穴市第一人民医院手术需进行腰-硬联合麻醉的老年患者126例,随机分为低剂量组[42例,术中持续泵注2 μg/（kg·min）瑞马唑仑]、中剂量组[42例,术中持续泵注3 μg/（kg·min）瑞马唑仑]、高剂量组[42例,术中持续泵注4 μg/（kg·min）瑞马唑仑],评估患者麻醉前（T0）、麻醉给药5 min（T1）、15 min（T2）、30 min（T3）时镇静程度并记录生命体征指标,记录患者麻醉起效时间、阻滞完善时间,统计麻醉给药后恶心呕吐、低血压等不良反应发生情况。结果 三组患者T1、T2、T3时Ramsay评分较T0时均升高（P<0.05）,中剂量组、高剂量组T2、T3时Ramsay评分高于低剂量组（P<0.05）,高剂量组T2、T3时Ramsay评分高于中剂量组（P<0.05）,低剂量、中剂量组T2、T3时平均动脉压、心率高于高剂量组（P<0.05）;高剂量组、中剂量组麻醉起效时间、阻滞完善时间均短于低剂量组（P<0.05）;低剂量组、中剂量组低氧血症、低血压等不良反应总发生率低于高剂量组（P<α,α=0.017）。结论 老年患者腰-硬联合麻醉术中给予3 μg/（kg·min）的瑞马唑仑效果较为理想,其镇痛作用优于2 μg/（kg·min）,对生命体征的影响低于4 μg/（kg·min）,不良反应较少,兼顾镇静作用与麻醉安全性。

Objective To analyze the effectiveness and safety of different doses of remimazolam in elderly patients with combined spinal-epidural anesthesia．Methods From May 2020 to April 2023,126 elderly patients who needed combined spinal-epidural anesthesia in Wuxue First People's Hospital were included and randomly divided into low-dose group[42 cases,continuous infusion of 2 μg/（kg·min）reimazolam during operation],medium-dose group[42 cases,continuous infusion of 3 μg/（kg·min）reimazolam during operation],and high-dose group[42 cases,continuous infusion of 4 μg/（kg·min）reimazolam during operation]．The degree of sedation and vital signs were recorded at 5 minutes（T1）,15 minutes（T2）,and 30 minutes（T3）of administration,and the anesthesia effective time and block completion time were recorded,and the incidence of adverse reactions such as nausea,vomiting,and hypotension after anesthesia administration were recorded．Results The Ramsay scores at T1,T2 and T3 of the three groups were significantly higher than those at T0（P<0.05）．The Ramsay scores of the middle-dose group and high-dose group were significantly higher than those of the low-dose group at T2 and T3（P<0.05）．The Ramsay scores of the high-dose group were significantly higher than those of the middle-dose group at T2 and T3（P<0.05）．The mean arterial pressure and heart rate of the low-dose group and the middle-dose group at T2 and T3 were higher than those of the high-dose group（P<0.05）．The effective time of anesthesia and block completion time in the high-dose group and the middle-dose group were significantly shorter than those in the low-dose group（P<0.05）．The total incidences of adverse reactions such as hypoxemia and hypotension in the low-dose group and the middle-dose group were significantly lower than those in the high-dose group（P<α,α=0.017）．Conclusions The effect of 3 μg/（kg·min）remimazolam in elderly patients with spinal-epidural combined anesthesia is ideal,its analgesic effect is better than 2 μg/（kg·min）,the impact on vital signs is less than 4 μg/（kg·min）,with fewer adverse reactions,which is a balance between the sedative effect and the safety of anesthesia．

目的 探讨职业性噪声暴露对广州市黄埔区某企业噪声作业工人听力损失状况的影响。方法 观察2016年8月—2018年8月,广州市黄埔区某企业噪声作业工人年度职业健康体检1 600例为调查对象,对该群体的纯音听阈测试检查结果进行分析。结果 随工龄不同听力损失发生率相比,差异有统计学意义(P<0.05),还会随着工龄的增长而增加听力损失几率;佩戴听力防护用品工人听力损失发生率低于不佩戴听力防护用品的工人,差异有统计学意义(P<0.05)。结论 噪声作业工人工龄时间越长听力损失发生率越高,防护听力用品的使用可有效降低听力损伤发生率,故在噪声作业时,企业应做好听力损伤防护措施,保障工人身心健康。

目的 研究血清胃蛋白酶原(PG)、胃泌素17(G-17)水平和HP感染与慢性萎缩性胃炎(CAG)和肠上皮化生的相关性。方法 连续选择2016年6月—2017年6月于我院诊断慢性非萎缩性胃炎60例,CAG 40例和肠上皮化生40例,比较患者血清PGI、II和PGI/II,G-17水平以及HP阳性感染率。结果 CAG和肠上皮化生患者PGI和PGI/II低于非萎缩性胃炎患者,而PGII水平升高,G-17水平和HP阳性感染率也增加,差异均有统计学意义(P＜0.05)。结论 血清PG、G-17水平和HP感染是CAG和肠上皮化生的重要机制。

Objective To study correlation in serum pepsinogen(PG),gastrin 17(G-17) levels and helicobacter pylori(HP) infection and chronic atrophic gastritis(CAG), intestinal metaplasia. Methods A total of 60 cases as non-CAG,40 of CAG and other 40 of intestinal metaplasia from June 2016 to June 2017 were consecutives enrolled, then to compare differences of serum PGI,II,PGI/II,G-17 levels, HP infection positive rate. Results The PGI and PGI/II values in patients with CAG and intestinal metaplasia were both lower than non-CAG patients, while PGII level got more,G-17 level and HP infection positive rate were higher too(P＜0.05). Conclusion The expressions of serum PG,G-17 and HP infection may be the important mechanism to CAG and intestinal metaplasia.

目的 研究经后路椎体间植骨融合术治疗老年退变性腰椎滑脱合并腰椎管狭窄症的临床效果。方法 将我院110例老年退变性腰椎滑脱合并腰椎管狭窄症患者抽签分为研究组与对照组,两组均为55例,研究组采取经后路椎体间植骨融合术治疗,对照组采取传统手术治疗,比较两组临床效果、Prolo评分及术中出血量、术后引流量、术后卧床时间及手术时间差异。结果 研究组总有效率与对照组总有效率分别为90.91%、92.73%,比较无统计学意义(P＞0.05);术后研究组Prolo功能、症状、总分均高于对照组(P＜0.05),滑移率比较无统计学意义(P＞0.05);研究组术中出血、术后引流量及术后卧床时间低于对照组(P＜0.05),手术时间比较无统计学意义(P＞0.05)。结论 经后路椎体间植骨融合术治疗老年退变性腰椎滑脱合并腰椎管狭窄症疗效确切,短期效果与传统术式相似,但可加快患者功能恢复,降低手术过强应激反应,具有较高的临床价值。