摘要信息：研究题目：西维来司他钠治疗脓毒症合并轻中度ARDS患者安全性及有效性的一项前瞻性、多中心、双盲、随机对照试验 研究目的： (1)观察西维来司他钠治疗脓毒症相关ARDS的临床安全性和有效性； (2)了解经西维来司他钠治疗后，患者氧合指数、机械通气时间（非机通时间）、肺功能指标、肺部影像学改变情况、炎症指标。 研究设计 本研究为前瞻性、多中心、双盲、随机对照临床研究。在不中止原本治疗方案基础上，对加用西维来司他钠治疗（试验组）或安慰剂治疗（对照组）的脓毒症合并ARDS的患者进行相关观察及指标记录。 样本量 本研究计划按照试验组：对照组= 1:1抽样，计划纳入试验组（注射用西维来司他钠）71例受试者，对照组（安慰剂）71例受试者，共计142例。 入组标准 (1)男女不限，年龄在18-75周岁之间； (2)依据sepsis3.0诊断为脓毒症的患者（附录一）； (3)依据柏林ARDS诊断标准诊断为ARDS的患者（附录二）； (4)能够在入ICU诊断为ARDS患者48小时内给药的患者（附录五）； (5)能够理解和遵守协议要求，自愿参加本研究； 排除标准 (1)参与其他临床研究的患者； (2)诊疗资料缺失严重的患者； (3)妊娠期、哺乳期女性或可能处于妊娠中的女性； (4)经研究者判断，认为不适合本研究组的患者（如原发严重肝肾功能损伤、慢性肺气肿、呼吸衰竭等慢性疾病器官、移植术后、DIC患者、终末期肿瘤患者、患精神疾病的患者等）; (5)氧合指数PaO2/FiO2 < 100 mmHg的患者（PaO2须在机械通气参数PEEP值不小于5 cm H2O的条件下测得，附录二）； (6)诊断为中性粒细胞减少症（中性粒细胞绝对计数 < 2 ⨉109 / L）的患者； (7)接受化疗药及其他免疫调节药物（如重组人粒细胞集落刺激因子、胸腺法新、乌司他丁、血必净等）或接受大剂量激素（>80mg/天）治疗超过5天的患者; (8)医师认为不适宜本实验对象的患者; (9)不能对原发病进行有效治疗的患者; 研究终点 主要终点指标： 接受西维来司他钠或安慰剂治疗后患者第5天的氧合指数（PaO2/FiO2）改善有效率 接受西维来司他钠或安慰剂治疗后患者第3、5、7、14天的氧合指数（PaO2/FiO2） 次要终点指标： 炎症指标：接受西维来司他钠或安慰剂治疗后患者第0、3、5、7天的血中CRP、PCT、IL-6、IL-8、IL-10、TNF-⍺，NE含量及浓度；及支气管肺泡灌洗液中的IL-6、IL-8、IL-10、TNF-⍺，BUN及蛋白含量和NE的含量及浓度 呼吸支持方式：（有创、无创或者高流量湿化氧疗）和时间 肺功能指标：接受西维来司他钠或安慰剂治疗后患者第3、5、7、14天的肺顺应性、呼吸机PEEP值； ARDS总体转归：ICU 28天生存率。

摘要信息：研究目的： 明确西维来司他钠治疗伴有SIRS的轻中度ARDS的有效性及安全性。 研究内容 本研究通过计算机随机，将伴有SIRS的轻中度ARDS患者随机分为安慰剂组和西维来司他钠组, 观察两组患者入组时(D0), 第1(D1)，3(D3)，5(D5)天氧合指数(PaO2/FiO2)，呼吸频率，28天内有创机械通气率、无机械通气时间、住ICU时间、住院时间、ICU获得性感染发生率、28天全因病死率、ICU病死率等，以评价西维来司他钠治疗伴有SIRS的轻中度ARDS患者肺损伤的效果，以期改善轻中度ARDS患者氧合、增加无机械通气时间、降低ARDS病死率。 纳入标准： (1)18岁≤年龄≤75岁成年病人，其种族、国籍、性别不限； (2)研究符合赫尔辛基宣言及中国临床试验研究法规，病人或其家属知情并同意参加试验； (3)入住ICU依据2012柏林标准诊断ARDS 72 h以内，且氧合指数介于150-300mmHg, 并伴有全身炎症反应综合征(SIRS)患者 (ARDS柏林标准和SIRS诊断标准见附录)； 排除标准： (1)慢性呼吸疾病的病史； (2)单纯的心源性肺水肿； (3)APACH2评分≥21分； (4)合并终末期疾病，或者临床主管医生判断近期患者预后不良； (5)ARDS病程>3天； (6)粒细胞缺乏或者接收免疫抑制剂或大剂量激素(甲强龙>40 mg)患者； (7)怀孕或哺乳； (8)曾经参与过本项研究； (9)不同意参加本试验； 主要观察指标： 1) 72 h氧合改善率[(D3氧合指数-D0氧合指数)/D0氧合指数]； 2) 28天无机械通气时间； 次要观察指标: 1) 28天有创机械通气率； 2) 28天住ICU时间； 3) 28天住院时间； 4) 28天全因病死率； 5) ICU病死率； 6)28天获得性感染发生率(定义为：实验室核酸或培养确诊的继发感染)； 7)血浆中NE及炎症因子IL-6、IL-10、CRP水平变化； 8)28天严重不良事件频率； 9) D1和D5氧合改善率；

摘要信息：摘 要 目的:探讨西维来司他钠对老年轻度阻塞性通气功能障碍患者胸腔镜手术后肺部并发症的影响。方法:选取择期行胸腔镜肺癌根治术的老年患者 180例，随机分成西维来司他钠组(S组)和乌司他丁组(U组)，每组90例。S组静脉泵注西维来司他钠，U组静脉泵注乌司他丁。比较两组至出院前的术后肺部并发症(PPCs)发生情况，麻醉诱导前 10 min (T)、切皮时(T,)、术毕即刻(T,)、术后 24h(T;)及72h(T)时的肺泡-动脉血氧分压差(P DO,)肺泡氧合指数(OI)和呼吸指数(RI);术前和术后2d时的第1秒用力呼气容积占预计值的百分比(FEV,%)、用力肺活量占预计值的百分比(FVC%)和FEV,FVC;术后气管导管拔管时间、麻醉后恢复室(PACU)入住时间及术后住院时间。结果:S组PACU停留时间短于U组;低氧血症、新出现肺部啰音和支气管痉挛发生率均低于U组;T~4时,PDO,和RI水平低于U组，0I水平高于U组:FEV,%、FVC%和FEV,FVC水平高于U组(P<0.05)。结论:西维来司他钠对老年轻度肺功能障碍患者行胸腔镜手术时具有一定的肺保护作用，可降低 PPCs 的发生。

摘要信息：目的 观察西维来司他钠在重症急性胰腺炎(SAP)合并肺损伤患者中的应用效果。方法 按随机数字表法将 2021年1月至 2023 年12月进行治疗的 84例SAP合并肺损伤患者分为对照组和观察组,各 42例。对照组采用鸟司他丁治疗,观察组于对照组的基础上加用注射用西维来司他钠治疗。比较两组炎症介质水平、肺郚超声评分([US)、血清淀粉酶(AMY)、尿淀粉酶(AMY),呼吸功能、肺损伤程度、病情严重程度、脏器功能、症状消失时间及不良反应发生情况。结果 观察组治疗后白细胞介素 -6(Ⅱ-6)、降钙素原(PCT)及C反应蛋白(CRP)水平均低于对照组,LUS 评分、AMY 和 UAMY 水平均低于对照组,氧合指数(PaO,Fi0,)与动脉血氧分压(PaO,)均高于对照组Muray 肺损伤量表(MLIS)评分、急性生理学和慢性健康状况Ⅱ(APACHEII)评分及序贯器官衰竭评分系统(SOFA)评分均低于对照组,呼吸困难、恶心呕吐及腹痛消失时间均短于对照组,差异有统计学意义(P<0.05):两组不良反应总发生率比较,差异无统计学意义(P>0.05)。结论 SAP合并肺损伤患者采用注射用西维来司他钠与鸟司他丁联合治疗可减轻炎症反应,改善呼吸功能,保护脏器功能,减轻肺损伤,控制患者病情,且不良反应并未增加。

摘要信息：1、炎症介质 NE、TNF-α、I-6 的过多激活参与 SAP 的进程及相关肾损害，肾组织NF-xB 激活在其中起重要作用;2、SS 发挥肾器官保护的可能活性机理:影响血清中炎症介质 NE、TNF-α、Ⅱ-6 水平是主要环节，减少其释放;其次抑制肾组织 NF-KB 活化，减轻炎性因子对肾组织细胞造成损伤有关。

摘要信息：目的 探讨注射用西维来司他钠治疗急性胰腺炎引发的全身炎症反应综合征(SIRS)及急性肺损伤的疗效。方法，对一例急性胰腺炎引发SIRS及急性肺损伤的患者采取注射用西维来司他钠治疗，通过动态监测血淀粉酶、血脂肪酶、白细胞计数、血小板计数、总胆红素、肌酐、转氨酶、氧合指数、胸部CT变化等，对患者进行效果评价。结果，在常规治疗的基础上采取注射用西维来司他钠治疗7d后，患者SIRS表现得到改善，血淀粉酶、脂肪酶及白细胞计数较入院时下降:与初入重症医学科相比，患者氧合指数明显改善，双肺弥漫性浸润改变及双侧胸腔积液好转;用药期间患者未出现肝肾功能损伤、血小板减少等不良反应。结论，注射用西维来司他钠治疗急性胰腺炎引发的SIRS及急性肺损伤是安全有效的。

摘要信息：Background:Neutrophil infiltration plays a critical role in the pathogenesis of acute lung injury following liver transplantation (LT). Neutrophil elastase is released from neutrophils during pulmonary polymorphonuclear neutrophil activation and sequestration. The aim of the study was to investigate whether the inhibition of neutrophil elastase could lead to the restoration of pulmonary function following LT. Methods:In in vivo experiments, lung tissue and bronchoalveolar lavage fluid (BALF) were collected at 2, 4, 8, and 24 h after rats were subjected to orthotopic autologous LT (OALT), and neutrophil infiltration was detected. Next, neutrophil elastase inhibitors, sivelestat sodium hydrate (exogenous) and serpin family B member 1 (SERPINB1) (endogenous), were administered to rats before OALT, and neutrophil infiltration, pulmonary oxidative stress, and barrier function were measured at 8 h after OALT. Results:Obvious neutrophil infiltration occurred from 2 h and peaked at 8 h in the lungs of rats after they were subjected to OALT, as evidenced by an increase in naphthol-positive cells, BALF neutrophil elastase activity, and lung myeloperoxidase activity. Treatment with neutrophil elastase inhibitors, either sivelestat sodium hydrate or SERPINB1, effectively reduced lung naphthol-positive cells and BALF inflammatory cell content, increased expression of lung HO-1 and tight junction proteins ZO-1 and occludin, and increased the activity of superoxide dismutase. Conclusion:Neutrophil elastase inhibitors, sivelestat sodium hydrate and SERPINB1, both reduced lung neutrophil infiltration and pulmonary oxidative stress and finally restored pulmonary barrier function.

摘要信息：The purpose of this study was to evaluate the effect of sivelestat sodium hydrate, a selective inhibitor of neutrophil elastase in the systemic inflammatory response, pulmonary function, and the postoperative clinical course following esophagectomy. Patients with hypoxia associated with surgical stress in the intensive care unit (ICU) immediately after an esophagectomy were eligible for this study. The degree of hypoxia was calculated according to the ratio of arterial oxygen tension (PaO(2)) to the fractional concentration of inspired oxygen (FiO(2))-PaO(2)/FiO(2). Patients with PaO(2)/FiO(2) < 300 mmHg were enrolled in this study. Seven patients were treated with sivelestat, and 10 were not so treated. The degree of hypoxia, the criteria for systemic inflammatory response syndrome (SIRS), and the postoperative clinical course were compared between the two groups. The postoperative decreases in the PaO(2)/FiO(2) ratio were significantly suppressed in the sivelestat group (p < 0.05, by analysis of variance, or ANOVA). Furthermore, 9 of the 10 control group patients developed SIRS on postoperative day 2, whereas only 2 of 7 of the sivelestat group patients developed SIRS (p < 0.05). The postoperative increases in the heart rate were significantly suppressed in the sivelestat group (p < 0.05, ANOVA). The postoperative decreases in the platelet counts were significantly suppressed in the sivelestat group (p < 0.05, ANOVA). The duration of mechanical ventilation and the length of ICU stay for the sivelestat group were shorter than that for the control group. We demonstrated that the postoperative decreases in the PaO(2)/FiO(2) ratio following esophagectomy were significantly suppressed in the sivelestat-treated group. This clinical study showed that a neutrophil elastase inhibitor may thus be a potentially useful drug for treating acute lung injury following esophagectomy.

摘要信息：The objective of the study was to evaluate the efficacy of sivelestat, a selective neutrophil elastase inhibitor, on body fluid balance after transthoracic esophagectomy. Esophagectomy with elective lymphadenectomy may induce excessive release of neutrophil elastase, which then promotes vascular permeability and an excessive water shift from the intravascular space to the peripheral compartment. Body fluid imbalance after esophagectomy often leads to circular instability, a decrease of urine output, and a delay in the shift to a diuretic state. The study was designed as a case-control study with a historical control group. A retrospective analysis was performed to examine our hypothesis that sivelestat improves abnormal body fluid retention and prevents subsequent pulmonary complications. To reveal the direct influence of sivelestat on the postoperative course, we avoided using steroids or other diuretic agents. Eighty-eight patients who underwent thoracic esophagectomy with extended lymphadenectomy from 2000 to 2008 were divided into two groups: those treated from 2003 to 2008, who all received postoperative administration of sivelestat (n=60); and those treated from 2000 to 2002, who did not receive sivelestat and were used as the control group (n=28). Both groups received fluid management using the same protocol. The time to reach a diuretic state, time until extubation of the tracheal tube, and development of delayed respiratory dysfunction were compared between the groups using univariate and multivariate analysis. The time until a shift to a diuretic state was significantly shorter after treatment with sivelestat (p<0.0001) and with a shorter operation time (p<0.0001). The tracheal tube was extubated significantly earlier in the sivelestat group (p<0.0001) and the incidence of delayed respiratory dysfunction was also significantly lower (p=0.0028) in this group. Multivariate logistic regression analysis showed that a delay in a shift to a diuretic state was a strong independent risk factor for the time to tracheal extubation (odds ratio 2.539, p=0.0056) and occurrence of delayed respiratory dysfunction (odds ratio 1.989, p=0.0104). Sivelestat treatment was not independently associated with reduced pulmonary complications, but the diuretic state was strongly regulated by sivelestat treatment (odds ratio 0.044, p=0.0003). Thus, administration of sivelestat has a beneficial influence on recovery from body water imbalance through a more rapid return to a diuretic state after esophagectomy, which contributes to prevention of subsequent pulmonary complications.

摘要信息：Post-operative pulmonary complications such as systemic inflammatory response syndrome (SIRS), acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are strongly associated with morbidity and mortality after esophagectomy. Post-operative administration of sivelestat sodium hydrate (sivelestat), a selective inhibitor of neutrophil elastase (NE), has been shown to improve the post-operative clinical course after esophagectomy. This study aimed to evaluate the effect of prophylactic administration of sivelestat on bronchial inflammatory responses. We randomized 24 patients into two groups. One group received 0.2 mg/kg/h sivelestat from the induction of anesthesia to post-operative day 1 (sivelestat group) and the other group received the same amount of physiological saline (control group). Bronchial alveolar epithelial lining fluid (ELF) samples were obtained from both groups at the induction of anesthesia and at the end of surgery. The serum and ELF levels of interleukin (IL)-6 and IL-8 were measured by enzyme-linked immunosorbent assay, and NE activity was spectrophotometrically determined using the same samples. Although IL-6 levels in the ELF significantly increased at the end of surgery compared with the pre-operative levels in both groups, the IL-8 levels and NE activity did not significantly increase at the end of the surgery compared to the corresponding pre-operative values in the sivelestat group. Moreover, IL-8 levels and NE activity in the ELF were significantly reduced at the end of surgery in the sivelestat group compared with corresponding values in the control group. The durations of ALI and ARDS were apparently shorter in the sivelestat group and the duration of SIRS was significantly shorter in the sivelestat group compared to the control group. We demonstrated that prophylactic use of sivelestat mitigated bronchial inflammation by suppressing NE activity and IL-8 levels in the ELF and shortened the duration of SIRS after transthoracic esophagectomy.