目的 探究血脂异常对左心室结构的影响及其与微循环损伤之间的关联。方法 将20只新西兰大白兔随机划分为血脂异常组和正常对照组。饲养8周后获取所有实验兔的离体心肌组织，测量左心室心肌结构评估指标（包括心肌质量、心腔内径大小以及室壁厚度）和病理学指标（心肌微血管密度和胶原体积百分比）；另外，通过对心肌组织氧化应激标记物的测定，评估实验兔心肌组织中一氧化氮（NO）、超氧化物歧化酶（SOD）、谷胱甘肽过氧化物酶（GSH-Px）以及丙二醛（MDA）等生化指标。结果 对于左心室结构指标，血脂异常组的左心室心肌质量及室间隔厚度较正常对照组显著增加（P均＜0.001）；对于组织病理学指标，血脂异常组的心肌微血管密度显著降低，而胶原体积百分比则显著升高（P均＜0.001）。对于生化指标，血脂异常组NO、SOD以及GSH-Px水平均显著降低，MDA水平显著升高（P均＜0.001）。室间隔厚度与心肌组织胶原体积百分比、MDA水平呈正相关，与心肌组织微血管密度、NO、SOD、以及GSH-Px水平呈负相关（P均＜0.001）。与正常对照组对比，血脂异常组心肌组织出现明显脂肪变性、炎细胞浸润以及心肌纤维组织增生、排列紊乱。结论 血脂异常可导致新西兰大白兔左心室不良重塑，且与心肌微循环损伤之间存在密切关联，这提示血脂异常早期防控可能有助于改善心血管事件不良预后。

      Objective To explore the impact of dyslipidemia on left ventricular（LV） structure and its association with myocardial microcirculatory injury．Methods Twenty New Zealand white rabbits were randomly divided into the dyslipidemia group and the normal control group．After 8 weeks of feeding，the isolated myocardial tissues of all experimental rabbits were obtained．The LV myocardial structure assessment indicators（including myocardial mass，heart cavity diameter and ventricular wall thickness） and pathological indicators（myocardial microvascular density and collagen volume fraction［CVF］） were measured．Additionally，the biochemical indicators such as nitric oxide（NO），superoxide dismutase（SOD），glutathione peroxidase（GSH-Px） and malondialdehyde（MDA） in the myocardial tissues of the experimental rabbits were evaluated by measuring the oxidative stress markers in the myocardial tissues．Results For the LV structural indicators，the myocardial mass and interventricular septal thickness in the dyslipidemia group were significantly increased compared with the normal control group（P＜0.001 for both）．For the histopathological indicators，the myocardial microvascular density in the dyslipidemia group was significantly decreased，while the CVF was significantly increased（P＜0.001 for both）．For the biochemical indicators，the levels of NO，SOD，and GSH-Px in the dyslipidemia group were significantly decreased，while the MDA level was significantly increased（P＜0.001 for all）．The interventricular septal thickness was positively correlated with the CVF and MDA level in myocardial tissue，and negatively correlated with the myocardial microvascular density，NO，SOD，and GSH-Px levels（P＜0.001 for all）．Compared with the normal control group，the myocardial tissue in the dyslipidemia group showed obvious fatty degeneration and inflammatory cell infiltration，as well as myocardial fibrous tissue hyperplasia and disordered arrangement．Conclusions Dyslipidemia can lead to adverse LV remodeling in New Zealand white rabbits and is closely related to myocardial microcirculatory injury．This suggests that early prevention and control of dyslipidemia may help improve the poor prognosis of cardiovascular events．

       目的 通过戴明循环管理法的品管圈（QCC）活动, 提升内镜中心病理标本标识的正确率与病理标本管理安全性。方法 采用基于戴明循环管理法的QCC活动, 对内镜中心病理标本标识质量进行现状把握、原因分析并制定对策, 比较QCC活动开展前后内镜病理标本标识的正确率。结果 QCC活动后, 内镜中心病理标本标识的正确率从99.8%提高至100%（P<0.05）。结论 内镜中心通过开展基于戴明循环管理法的QCC活动, 显著提升了内镜病理标本管理安全性与工作效率。

       Objective To improve the accuracy of pathological specimen identification and the safety of pathological specimen management in endoscopy center through quality control circle（QCC）activity based on Deming cycle management．Methods QCC activity based on Deming cycle management was used to summarize the status quo,analyze the causes and formulate countermeasures for the quality control of pathological specimen identification in endoscopy center．The accuracy rate of endoscopic pathological specimen identification before and after QCC activity was compared．Results After QCC activity, the accuracy of pathological specimen identification in endoscope center increased from 99.8% to 100%．Conclusions QCC activities based on Deming cycle management can greatly improve the safety and efficiency of endoscopic pathological specimen management．

目的 探讨计划-实施-检查-处理（PDCA）循环法及根本原因分析法在持续正压通气治疗重症肺炎患儿中的应用效果。方法 选取2021年1月—2023年1月医院收治并接受鼻塞式持续正压通气治疗的重症肺炎患儿80例,基于随机数字表法分为两组,每组各40例。对照组接受常规护理,观察组采用PDCA循环法联合根本原因分析法护理干预。比较两组临床症状改善时间、血气指标[动脉血氧分压（PaO₂）、动脉血氧饱和度（SaO₂）、动脉血二氧化碳分压（PaCO₂）]、肺功能指标[第1秒用力呼气容积（FEV₁）、潮气量（VT）]、炎症免疫指标[单核细胞趋化蛋白-1（MCP-1）、可溶性髓系细胞触发受体-1（sTREM-1）、可溶性细胞间黏附分子-1（sICAM-1）]水平变化,比较两组患儿家属满意度情况。结果 观察组患儿咳嗽、气促、哮鸣音、心率恢复及紫绀等症状改善用时均低于对照组,比较差异有统计学意义（P<0.05）。干预前,两组患儿PaO₂、SaO₂、PaCO₂、FEV₁、VT、MCP-1、sTREM-1、sICAM-1水平比较差异均无统计学意义（P>0.05）;干预后,两组患儿上述指标水平均有不同程度变化（P<0.05）,观察组PaO₂（97.18±7.90 mmHg vs 90.30±7.12 mmHg）、SaO₂（93.58±3.82% vs 86.30±4.21%）、FEV₁（2.66±0.46 L vs 1.97±0.34 L）、VT（11.92±1.89% vs 9.83±1.10%）水平均高于对照组,观察组PaCO₂（36.70±3.97 mmHg vs 40.65±3.79 mmHg）、MCP-1（58.45±11.94 ng/L vs 74.46±16.69 ng/L）、sTREM-1（36.25±8.30 ng/L vs 51.57±9.51 ng/L）、sICAM-1（187.52±31.22 mg/L vs 243.73±46.79 mg/L）水平低于对照组,差异均有统计学意义（P<0.05）。观察组患儿家属满意度整体优于对照组（P<0.05）;观察组总满意率（97.5% vs 77.5%）高于对照组,差异有统计学意义（P<0.05）。结论 PDCA循环法及根本原因分析法应用于接受持续正压通气治疗的重症肺炎患儿,能够有效促进患儿临床症状改善,有利于血气及肺功能恢复,且可降低炎症反应,患儿家属满意度较高。

Objective To explore the application effect of Plan-Do-Check-Action（PDCA）circulation method and root cause analysis method in the treatment of children with severe pneumonia with continuous positive pressure ventilation．Methods From January 2021 to January 2023,80 children with severe pneumonia who were admitted to hospital and received nasal plug continuous positive pressure ventilation treatment were enrolled in this study．Based on the random number table method,they were divided into two groups,with 40 cases in each group．The control group received routine nursing,while the observation group received PDCA circulation method combined with root cause analysis nursing intervention．The improvement time of clinical symptoms,changes in blood gas indicators[arterial partial oxygen pressure（PaO₂）,arterial oxygen saturation（SaO₂）,arterial partial pressure of carbon dioxide（PaCO₂）],lung function indicators [（forced expiratory volume in 1 second,FEV₁）,tidal volume（VT）],and inflammatory immune indicators [monocyte chemotactic protein-1（MCP-1）,soluble myeloid cell trigger receptor-1（sTREM-1）,soluble intercellular adhesion molecule-1（sICAM-1）] levels between the two groups were compared,and the family members’ satisfaction of the two groups was also compared．Results The improvement time for symptoms such as cough,shortness of breath,wheezing,heart rate recovery and cyanosis in the observation group was lower than that in the control group,and the difference was statistically significant（P<0.05）．Before intervention,there was no statistically significant difference in the levels of PaO₂,SaO₂,PaCO₂,FEV₁,VT,MCP-1,sTREM-1 and sICAM-1 between the two groups of children（P>0.05）．After intervention,the levels of the above indicators in both groups of children showed varying degrees of change（P<0.05）．The levels of PaO₂（97.18±7.90 mmHg vs 90.30±7.12 mmHg）,SaO₂（93.58±3.82% vs 86.30±4.21%）,FEV₁（2.66±0.46 L vs 1.97±0.34 L）,VT（11.92±1.89% vs 9.83±1.10%）in the observation group were higher than those in the control group．The levels of PaCO₂（36.70±3.97 mmHg vs 40.65±3.79 mmHg）,MCP-1（58.45±11.94 ng/L vs 74.46±16.69 ng/L）,sTREM-1（36.25±8.30 ng/L vs 51.57±9.51 ng/L）and sICAM-1（187.52±31.22 mg/L vs 243.73±46.79 mg/L）in the observation group were lower than those of the control group,with statistically significant differences（P<0.05）．The overall satisfaction of the observation group was better than that of the control group（P<0.05）,the total family members’ satisfaction rate of the observation group was higher than that of the control group（97.5% vs 77.5%）,with a statistically significant difference（P<0.05）．Conclusions PDCA circulation method and root cause analysis method applied to children with severe pneumonia who receive continuous positive pressure ventilation treatment,can effectively promote the improvement of clinical symptoms,be conducive to the recovery of blood gas and lung function,and reduce inflammatory reaction,with high family members’ satisfaction．

目的 分析后循环脑梗死（PCCI）患者椎基底动脉狭窄和血清生化指标的相关性。方法 对100例PCCI患者的临床资料进行回顾性分析,依照椎基底动脉狭窄程度将患者分为不稳定斑块组（n=35）、稳定斑块组（n=36）和无斑块组（n=29）。对比3组患者临床一般情况,血清神经细胞因子水平,血清炎症因子水平,并分析PCCI患者椎基底动脉狭窄和血清生化指标的相关性。结果 3组患者再次发病情况与NIHSS评分对比差异有统计学意义,不稳定斑块组高于其他2组（P<0.05）,但稳定斑块组与无斑块组比较差异无统计学意义（P>0.05）;3组患者脑源性神经营养因子（BDNF）、神经元特异性烯醇化酶（NSE）、中枢神经特异蛋白（S100β）水平对比差异有统计学意义,不稳定斑块组BDNF低于稳定斑块组与无斑块组,不稳定斑块组NSE、S100β高于稳定斑块组与无斑块组（P<0.05）,但稳定斑块组与无斑块组对比无差异（P>0.05）;3组患者血清C反应蛋白（CRP）、白细胞介素-37（IL-37）、肿瘤坏死因子（TNF-α）、血管细胞黏附分子-1（VCAM-1）、细胞间黏附分子-1（ICAM-1）、人软骨糖蛋白40（YKL-40）水平对比有差异,不稳定斑块组高于其它2组（P<0.05）,但稳定斑块组与无斑块组比较差异无统计学意义（P>0.05）;Pearson直线相关分析显示,椎基底动脉狭窄与BDNF呈负相关,与NSE、S100β、CRP、IL-37、TNF-α、VCAM-1、ICAM-1、YKL-40呈正相关（P<0.05）;多因素 Logistic 回归分析结果显示,BDNF、NSE、ICAM-1、YKL-40是椎基底动脉狭窄的独立危险因素（P<0.05）。结论 PCCI患者椎基底动脉狭窄程度越严重,再次发病率越高,对患者的神经功能影响越严重。同时血清相关神经细胞因子水平和炎症因子水平与椎基底动脉狭窄严重程度具有明显相关性,其中BDNF、NSE、ICAM-1、YKL-40可作为PCCI患者椎基底动脉狭窄预测的重要指标,因此临床上可以通过监测患者的血清相关生化指标为临床诊断及预后判断提供参考依据。

Objective To investigate the correlation between vertebrobasilar artery stenosis and serum biochemical indexes in patients with posterior circulation cerebral infarction（PCCI）．Methods One hundred patients with PCCI admitted to our hospital were selected as the study objects,and the clinical data of all patients were retrospectively analyzed．The patients were divided into unstable plaque group（n=35）,stable plaque group（n=36）and no plaque group（n=29）according to the degree of vertebrobasilar artery stenosis．The general clinical conditions,serum levels of neurocytokines and inflammatory factors of the patients were compared,the correlation between vertebrobasilar artery stenosis and serum biochemical indicators in patients with PCCI was analyzed．Results The recurrence and NIHSS score of the 3 groups were significantly different,the unstable plaque group was significantly higher than the other 2 groups（P<0.05）,but there was no significant difference between the stable plaque group and the no plaque group（P>0.05）．The levels of brain-derived neurotrophic factor（BDNF）,neuron-specific enolase（NSE）and central nerve specific protein（S100β）in the three groups were significantly different．BDNF in unstable plaque group was lower than that in stable plaque group and no plaque group,while NSE and S100β in unstable plaque group were higher than that in stable plaque group and no plaque group（P<0.05）．There was no significant difference between stable plaque group and no plaque group（P>0.05）．The levels of serum C-reactive protein（CRP）,interleukin-37（IL-37）,tumor necrosis factor-α（TNF-α）,vascular cell adhesion molecule-1（VCAM-1）,intercellular adhesion molecule-1（ICAM-1）and human cartilage glycoprotein 40（YKL-40）in 3 groups were significantly different．The unstable plaque group was higher than the other two groups（P<0.05）,but there was no significant difference between the stable plaque group and the no plaque group（P>0.05）．Pearson Line correlation analysis showed that vertebrobasilar artery stenosis was negatively correlated with BDNF,and positively correlated with NSE,S100β,CRP,IL-37,TNF-α,VCAM-1,ICAM-1,YKL-40（P<0.05）．Multivariate Logistic regression analysis showed that BDNF,NSE,ICAM-1 and YKL-40 were independent risk factors for vertebrobasilar artery stenosis（P<0.05）．Conclusions The more severe degree of vertebrobasilar artery stenosis in patients with PCCI,the higher recurrence rate and more serious the impact on the neurological function of patients．At the same time,the levels of serum related neurocytokines and inflammatory factors were significantly related to the severity of vertebrobasilar artery stenosis．BDNF,NSE,ICAM-1 and YKL-40 can be used as important indicators to predict the severity of vertebrobasilar artery stenosis in patients with PCCI．Therefore,monitoring the patient’s serum biochemical indicators of angiography can provide reference for clinical diagnosis and prognosis judgment．

目的 探讨复方丹参滴丸联合阿托伐他汀治疗对伴有颈动脉粥样硬化短暂性脑缺血发作患者脑循环动力的影响。方法 将2017年12月—2018年12我院收治入院的98例伴有颈动脉粥样硬化短暂性脑缺血发作患者为研究对象,随机分为观察组(49例,给予复方丹参滴丸联合阿托伐他汀治疗)和对照组(49例,给予阿托伐他汀治疗)。观察对比治疗前及治疗后2组患者每日短暂性脑缺血发作频率及持续时间,血脂水平、血流变指标、粥样硬化斑块及斑块面积。结果 治疗前,两组患者每日短暂性脑缺血发作频率、持续时间、各项血脂水平、脑循环动力学指标IMT 及斑块面积相比,差异无统计学意义(P>0.05);治疗后,2组患者每日短暂性脑缺血发作频率、持续时间、各项血脂水平、脑循环动力学指标IMT 及斑块面积相比均有所改善,其中观察组患者每日短暂性脑缺血发作频率、持续时间、各项血脂水平、脑循环动力学指标IMT 及斑块面积相比优于对照组,差异有统计学意义(P<0.05)。结论 在伴有颈动脉粥样硬化短暂性脑缺血发作患者中采用复方丹参滴丸联合阿托伐他汀治疗效果确切,可有效降低伴有颈动脉粥样硬化的短暂性脑缺血发作患者发作频率及持续时间,同时可有效调节患者血脂水平,改善对脑循环动力学指标,值得临床推广普及。

Objective To investigate the effect of compound Danshen dripping pills combined with atorvastatin on cerebral circulation dynamics in patients with transient ischemic attack accompanied by carotid atherosclerosis. Methods A total of 98 patients with transient ischemic attack with carotid atherosclerosis admitted to our hospital from December 2017 to December 2018 were randomly divided into observation group (49 cases, receiving compound danshen drop pill combined with atorvastatin) and control group (49 cases, receiving atorvastatin), to observe and compare the frequency and duration of transient ischemic attack, blood lipid level, hemorheological indexes, atherosclerotic plaque and plaque area of the two groups before and after treatment. Results Before treatment, there was no significant difference in frequency, duration, blood lipid levels, IMT and plaque area between the two groups (P>0.05). After treatment, 2 groups of patients with transient ischemic attack daily frequency, duration, the lipid levels and cerebral circulation dynamics index IMT and plaque area were improved. Compared with observation group of patients with transient ischemic attack daily frequency, duration, the lipid levels and cerebral circulation dynamics index IMT and plaque area were better than control group, the differences were statistical significance (P<0.05). Conclusion Patients in associated with carotid atherosclerosis with transient ischemic attack using compound danshen dropping pill with atorvastatin therapy have good effects. This may effectively reduce frequency and duration in patients with transient ischemic attack associated with carotid atherosclerosis, regulate blood lipid levels at the same time, and improve the dynamics of cerebral circulation index. It is worthy of clinical popularization.

目的 检测外周血循环肿瘤细胞(circulating tumor cell, CTC)在原发性肝癌患者中的表达情况,并探讨CTC动态变化及其相对于甲胎蛋白(Alpha fetoprotein AFP)对原发性癌患者术后复发转移的预测作用。方法 收集原发性肝癌患者134例,肝脏良性病变患者72例,检测外周血 CTC 数目,同时检测AFP的表达水平,分析 CTC 与 AFP 的相关性。然后在134名原发性肝癌患者中筛选出成功行肝癌根治术的患者,共86例,检测这86名患者术前、术后外周血CTC和AFP,分析CTC和AFP对原发性肝癌术后复发转移的评估价值。结果 原发性肝癌患者外周血CTC阳性率高于肝脏良性病变患者,差异有统计学意义(P＜0.05);原发性肝癌患者CTC水平与AFP水平、淋巴结转移、肿瘤结节多少有关,与年龄、性别、肿瘤直径、分化程度、肝硬化有无、TNM分期无关;原发性肝癌患者CTC和AFP生存分析显示,原发性肝癌根治术后早期复发转移与CTC和AFP密切相关;CTC较阳性对术后复发转移具有更好的诊断价值,二者联合对复发转移预测价值最高。结论 CTC可以做为一个比传统肿瘤标志物更好的对原发性肝癌术后复发转移进行监测的指标,与肿瘤标志物联合检测预测价值更高。

Objective To detect the expression of peripheral blood circulating tumor cells CTC in patients with primary liver cancer and to explore the dynamic changes of CTC and its predictive effect on postoperative recurrence and metastasis of primary cancer. Methods The number of CTC in peripheral blood was measured in 134 patients with primary liver cancer and 72 patients with benign liver disease, the expression of AFP was detected, and the correlation between CTC and AFP was analyzed. Then 86 patients with primary liver cancer were selected from 134 patients with primary liver cancer who underwent radical hepatectomy. The values of CTC and AFP in evaluating recurrence and metastasis of primary liver cancer before and after operation were analyzed by CTC and AFP, in peripheral blood of these 86 patients. Results The positive rates of CTC in peripheral blood of patients with primary liver cancer were higher than that of patients with benign liver disease(P< 0.05). The levels of CTC in patients with primary liver cancer were related to AFP level, lymph node metastasis and the number of tumor nodules, but not to age, sex, tumor diameter, differentiation degree, liver cirrhosis and TNM stage. The survival analysis of CTC and AFP in patients with primary liver cancer showed that the early recurrence and metastasis of primary liver cancer after radical resection were closely related to the positive rate of CTC and AFP, and the positive rate of CTC was more effective than that of AFP positive in the diagnosis of recurrence and metastasis after operation, and the combination of the two had the highest predictive value for recurrence and metastasis. Conclusion CTC may be used as a better index to monitor postoperative recurrence and metastasis of primary liver cancer than traditional tumor markers. The combined detection prediction value of tumor markers is higher.

目的 探讨体外循环手术前后患者血清HMGB₁、CK、CK-MB、LDH、LD₁、AST水平变化及意义。方法 采用ELISA法检测57例体外循环患者手术前后血清HMGB₁表达水平,采用临床常规方法检测血清中CK、CK-MB、LDH、LD₁、AST水平。对体外循环手术前后血清HMGB1表达水平与CK、CK-MB、LDH、LD₁、AST的水平进行比较与相关分析。结果 体外循环手术患者HMGB₁、CK、CK-MB、LDH、LD₁、AST水平在手术后0.5小时、24小时、48小时、72小时均高于手术前(P<0.05);HMGB₁、CK、CK-MB、LD₁、AST水平在手术后24小时达高峰,LDH水平高峰出现于手术后48小时,其他各指标渐渐下降。体外循环手术阻断时间延长,则HMGB₁、CK、CK-MB、LDH、LD₁、AST水平升高。体外循环手术后患者血清中HMGB₁表达水平与CK、CK-MB、LDH、AST指标呈正相关关系(P<0.05)。结论 体外循环手术后患者血清HMGB₁、CK、CK-MB、LDH、LD₁、AST水平升高,HMGB1参与了心肌的缺血再灌注损伤过程。

Objective To investigate before extracorporeal circulation and after HMGB₁, CK, CK-MB, LDH, LD₁, AST levels and significance in serum of patients. Methods 57 cases before extracorporeal circulation surgery and after, the levels of HMGB₁ were detected by ELISA,while the levels of CK and CK-MB and LDH and LD₁ and AST were detected by using conventional methods of clinical. Difference of HMGB₁ and CK, CK-MB, LDH, LD₁ and AST levels were compared. The relationship were been analyzed on the patients before extracorporeal circulation surgery and after. Results In extracorporeal circulation surgery, HMGB₁, CK, CK-MB, LDH, LD₁, AST levels after surgery in 0.5 hours, 24 hours, 48 hours,72 hours were higher than before surgery (P<0.05); HMGB₁, CK, CK-MB, LD₁, AST levels peaked at 24 hours aftersurgery, LDH levels was peaked at 48 hours after surgery, and then gradually declined. Extracorporeal circulation blocking was prolonged, the levels of HMGB₁ and CK and CK-MB and LDH and LD₁ and AST were elevated. After extracorporeal circulation surgery in serum the levels of HMGB₁ expression and CK,CK-MB,LDH, AST indicators showed a positive correlation(P<0.05). Conclusion The levels of HMGB₁, CK, CK-MB, LDH, LD₁ and AST were elevated after extracorporeal circulation surgery. HMGB₁ was involved in myocardial ischemia and reperfusion injury.