目的 探讨两种不同机器学习算法在妊娠期糖尿病(gestational diabetes mellitus,GDM)风险预测中的应用。方法 选取2019年7月—2020年8月在广州市妇女儿童医疗中心及广东省计划生育专科医院进行产前检查的孕早期妇女520例,其中妊娠期糖尿病孕妇200例,随机抽取同期正常孕妇320例,收集孕妇的一般资料和孕早期(8～12周)的生化指标、血常规和凝血功能等检测资料。利用这些分析变量建立支持向量机(SVM)和Logistic回归(LR)预测模型。根据模型预测能力和模型实用性,如准确率、精确率、真阳性(TP)率、假阳性(FP)率、召回率、F测度、受试者工作特征曲线(ROC)进行效果评价。结果 两种预测模型的分类准确率总体为86%。SVM模型在真阳性(TP)率、假阳性(FP)率、召回率、F测度、受试者工作特征曲线(ROC)方面优于LR模型。结论 在分类与预测方面,支持向量机算法比Logistic回归模型更具有实用价值。

Objective To explore the application of two different machine learning algorithms in the risk prediction of gestational diabetes mellitus (GDM). Methods A total of 520 pregnant women with gestational diabetes mellitus were selected from Women and Children's Medical Center and Guangdong Family Planning Hospital from July 2019 to August 2020, including 200 cases of gestational diabetes mellitus, and 320 normal pregnant women in the same period. The general information of pregnant women and the detection data of biochemical indexes, blood routine test and coagulation function in early pregnancy (8～12 weeks) were collected. Support vector machine (SVM) and logistic regression (LR) prediction models were established by using these analysis variables. According to the predictive ability and practicability of the model, something like accuracy rate, precision ratio, true positive (TP) rate, false positive (FP) rate, recall rate, F-measure and receiver operating characteristic curve (ROC) were evaluated. Results The classification accuracy of the two models was 86%. SVM model is better than LR model in TPrate, FPrate, recall rate, F measure and ROC. Conclusion Support vector machine is more practical than logistic regression model in classification and prediction.

目的 探究小分子化合物逆转素(reversine,Rev)对胆管结扎(BDL)诱导的大鼠胆汁淤积性肝损害、纤维化、上皮细胞-间充质转化以及胆管反应的影响。方法 雄性Lewis大鼠随机分成三组,每组各5只。按照如下处理:BDL组大鼠行2周的胆管结扎;BDL+Rev组行胆管结扎同时给予腹腔注射逆转素;对照采用假手术(Sham)。2周后获取血液和肝组织。血指标检测总白蛋白(TP)、总胆红素(TBIL)、谷丙转氨酶(ALT)、谷草转氨酶(AST)、碱性磷酸酶(ALP)、γ谷氨酰转肽酶(GGT)。H&E染色检测肝组织病理。Azan染色检测组织胶原蛋白。免疫组化检测肝组织α平滑肌肌动蛋白(α-SMA)、结蛋白(Desmin)、波形蛋白(Vimentin)、细胞角蛋白(CK7,CK19)、β-连环蛋白(β-Catenin)以及上皮细胞粘附分子(EpCAM)蛋白的表达情况。结果 胆管结扎导致肝脏合成的总白蛋白量下降,总胆红素(TBIL)、谷草转氨酶(AST)、碱性磷酸酶(ALP)、γ谷氨酰转肽酶(GGT)水平明显上升,逆转素处理使下降的总白蛋白上升,使上升的总胆红素(TBIL)、谷草转氨酶(AST)、碱性磷酸酶(ALP)、γ谷氨酰转肽酶(GGT)水平向正常水平回复。逆转素可以缓解胆汁淤积引起的肝纤维化,表现为下调BDL引起的胶原蛋白和α-SMA蛋白沉积。逆转素可以抑制胆汁淤积引起的上皮细胞-间充质转化表现为逆转素明显降低BDL导致的Desmin和Vimentin的表达。逆转素可以抑制胆汁淤积引起的胆管反应表现为明显减少CK7和CK19阳性胆管的表达含量。逆转素抑制胆汁淤积引起的胆管反应与调节β-Catenin和EpCAM的表达有关。结论 逆转素可以缓解胆汁淤积引起的大鼠肝损害,具有一定的保护作用。逆转素可以成为一种潜在治疗药物。

Objective To investigate the effect of reversine (REV) on bile duct ligation (BDL) -induced hepatic damage, fibrosis, epithelial-mesenchymal transformation, and ductular reaction in rats. Methods Male Lewis rats were randomly divided into three groups with 5 rats in each group. Bile duct ligation was performed in the BDL group for two weeks. BDL+ REV group was treated with bile duct ligation and intraperitoneal injection of reversine. The control group was Sham operation (Sham). Blood and liver tissue were obtained after 2 weeks. Blood indexes were determined for total albumin, total bilirubin, alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase and γ-glutamyl transpeptidase. Hepatic histopathology was detected by H&E staining. Azan staining was used to detect tissue collagen deposition. Immunohistochemistry was used to detect the expression of α-SMA, desmin, vimentin, cytokeratin, β-catenin and epithelial cell adhesion molecule (EpCAM) protein. Results Bile duct ligation resulted in the decrease of total albumin synthesis in liver, and the increase of total bilirubin, glutamic-oxalacetic transaminase, alkaline phosphatase and γ-glutamyltranspeptidase. The levels of total bilirubin, aspartate transaminase, alkaline phosphatase and γ-glutamyltranspeptidase returned to the normal level with reversine treatment. Reversine could alleviate cholestasis-induced liver fibrosis by downregulating BDL-induced deposition of collagen and α-SMA protein. Reversine inhibited cholestasis-induced epithelial-mesenchymal transformation by significantly reducing BDL-induced desmin and vimentin expression. Reversine could inhibit cholestasis-induced ductular reaction by significantly reducing the expression of CK7 and CK19 positive biliary cells. Inhibition of cholestasis induced ductular reaction by reversine was associated with regulation of β-catenin and EpCAM expression. Conclusion Reversine can alleviate liver damage caused by cholestasis in rats and have a protective effect. Reversine may be a potential treatment that need further investigation.

目的 快速康复外科理念在老年前列腺电切术后的应用分析。方法 选取我院2019年1月—2020年10月行前列腺电切术老年患者88例,以随机数字表法分为两组,参照组给予常规护理,研究组给予快速康复外科理念下护理,比较两组患者术后尿管拔除时间、术后首次进食时间、术后首次下床活动时间,并比较两组住院天数、及入院时和出院前生活质量(以ADL评价)评分,术后并发症发生情况。结果 研究组术后尿管拔除、首次进食、首次下床活动时间、住院天数短于参照组,术后并发症发生率低于参照组,差异有统计学意义(P＜0.05);入院时,两组ADL评分比较,差异无统计学意义(P＞0.05)。出院前,两组ADL评分高于入院时,且研究组高于参照组,差异有统计学意义(P＜0.05)。结论 老年患者行前列腺电切术后,给予快速康复外科理念下的护理服务,有利于缩短术后尿管拔除、进食、下床活动时间,也能够提高患者生活质量,减轻并发症影响,缩短住院天数,提高床位周转率,具有较高的护理价值。

目的 探讨扩张型心肌病采用诺欣妥治疗的效果及对其心功能的影响。方法 本文将2020年2月—2020年10月收治的扩张型心肌病患者50例作为研究对象,对所有患者按照随机方式进行分组,对照组25例患者以常规抗心衰治疗与依那普利治疗,观察组25例患者在常规抗心衰治疗的基础上给予诺欣妥治疗,统计分析用药后有效率、治疗前后心功能指标、6 min步行距离及炎症因子水平。结果 两组之间炎症因子水平相比,观察组较对照组低;6 min步行距离、用药后有效率相比,观察组较对照组高;心功能指标相比,观察组SV、LVEF较对照组高,LVESD、LVEDD较对照组低,P＜0.05。结论 采用诺欣妥治疗扩张型心肌病效果显著,总有效率较好,可有效改善患者心功能指标,增加6 min步行距离,减轻炎症因子水平,改善患者预后。

目的 探讨延续性健康指导联合预见性干预对慢性脑卒中患者脑功能影响。方法 选取2019年6月—2020年6月我院收治的慢性脑卒中患者118例,使用随机数字表法将其分为两组,对照组进行预见性干预,研究组进行延续性健康指导联合预见性干预。比较两组效果、神经运动功能、不良反应。结果 研究组效果大于对照组(P＜0.05);研究组神经运动功能大于对照组(P＜0.05);研究组不良反应少于对照组(P＜0.05)。结论 慢性脑卒中护理中,延续性健康指导联合预见性干预效果较好,值得应用。

Objective To investigate the effects of continuous health guidance and combined predictive intervention on cerebral function in patients with chronic stroke. Methods A total of 118 patients with chronic stroke admitted to our hospital from June 2019 to June 2020 were selected and divided into two groups using the random number table method. The control group received predictive intervention, and the study group received continuous health guidance combined predictive intervention. The effects, neuromotor functions and adverse reactions of the two groups were compared. Results The effect of the study group was greater than that of the control group (P<0.05). The neuromotor function of the study group was higher than that of the control group (P<0.05). The adverse reactions in the study group were less than those in the control group (P<0.05). Conclusion In the nursing of chronic stroke, the effect of continuous health guidance combined with predictive intervention is good, and it is worth applying.

目的 分析濮阳市人民医院肺炎克雷伯菌(Klebsiella pneumoniae,K. pneumoniae, KPN) 的临床分布、流行病学特点及耐药情况,以促进临床合理用药。方法 回顾性分析濮阳市人民医院2020年1—3月临床送检标本中分离出的209株肺炎克雷伯菌的分布及耐药情况。结果 临床标本中共分离出肺炎克雷伯菌209株,在肠杆菌科细菌中占比为68.30%;标本来源以痰液、血液和尿液为主,分别占75.11%、9.09%、5.74%;分离菌株数量较多的科室为ICU、神经外科一病区、EICU病区和胸外科病区,分别占比47.37%、 17.7%、3.35%和3.35%。产超广谱β-内酰胺酶(ESBLs)菌株检出率为11.48%,耐碳青霉烯肺炎克雷伯菌(CRKP)检出率为58.37%。不同来源KPN的耐药性具有显著差异, 综合ICU KPN的耐药率高于其他病区。结论 濮阳市人民医院临床分离KPN对常用抗菌药物有一定的耐药性,尤其以综合ICU分离菌株耐药严重,应加强监测KPN耐药情况,有针对性的选择抗菌药物,并增强院感防控,以减轻KPN的耐药情况。

Objective To analyze the characteristic of clinical distribution, epidemiological and drug resistance of Klebsiella pneumoniae (KPN) in the People's Hospital of Puyang City,and to provide evidence for rational use of antimicrobial drugs in clinical treatment. Methods A retrospectively analysis was conducted on 209 strains of KPN isolated from the clinical specimens in the People's Hospital of Puyang City from January 2020 to March 2020. Results A total of 209 strains of KPN were isolated from clinical specimens, accounting for 68.30% of enterobacteriaceae bacteria; the sources of specimen were mainly from sputum, blood and urine, accounting for 75.11%, 9.09% and 5.74% respectively; the departments with more isolated strains were ICU department, neurosurgery first department, EICU department, and thoracic surgery department, accounting for 47.37%, 17.7%, 3.35% and 3.35% respectively. Besides, the detection rate of extended spectrum β-lactamase(ESBLs) strains was 11.48%,and the detection rate of carbapenems-resistant klebsiella pneumoniae (CRKP) strains was 58.37%. The results showed that the drug resistance of KPN from different sources was with a significantly difference, and the drug resistance rate of KPN in comprehensive ICU was significantly higher than that of other departments. Conclusion The resistance of KPN isolated from the People's Hospital of Puyang City to common antibiotics is not optimistic. In particularly, the drug resistance of KPN isolated strains from the comprehensive ICU is more serious. Hence, the monitoring of KPN resistance should be strengthened and the effective prevention and control measures of hospital infection should be adopted. Furthermore, antibacterial drugs should be used rationally to reduce the generation of drug-resistant bacteria.

目的 通过建立特征参数曲线模型分析在不同CT扫描条件下对肺结节鉴别诊断的量化意义。方法 回顾性分析2018年9月—2019年10月我院收治的肺结节患者的CT胸部平扫图像为研究对象,纳入标准为结节直径≥3 mm,无其他病史。在筛选出的96例样本中,符合条件的样本68例(男性39例,女性29例),按扫描剂量的不同将研究对象分为低剂量观察组(管电压120 kV,管电流20 mA)和常规剂量组(管电压120 kV,管电流150 mA),每组各34例;通过测量并计算扫描长度、有效剂量、样本体型、信噪比相关参数,观察不同管电流与有效辐射剂量之间的相关性以及图像质量;运用PACS人工智能软件以及人工综合提取肺结节特征信息(直径、体积、密度纹理、边缘细节、内部结构)并记录数据,进而通过公式计算出肺结节质量;应用U检验分析比较不同管电流下各参数的组间差异,经过单元逻辑对确定的重要参数体积与质量纳入多元逻辑分析,建立特征参数曲线模型并测量曲线下面积及勾画ROC;使用卡方分析评价不同管电流下建立特征参数曲线模型对肺结节定量诊断分析的差异并同时比较不同管电流下的图像质量。结果 研究中发现,样本接受的有效辐射剂量在管电压一定的条件下,随管电流的增加而线性增加;样本肥胖患者(BMI≥23.9)的CT图像在使用低剂量扫描中呈现出明显噪声,影响组织间观察,而BMI标准(18.5≤BMI≤23.9)的样本的CT图像中,肺结节的信噪比与管电流变化未出现明显趋势阈值,差异无统计学意义(P＜0.05);通过特征参数曲线模型显示,肺结节的体积与质量均质性曲线显示出其变化趋势与管电流变化成相关性,且稳定性和一致性较好,故此二要素为模型主要分析成分,观察组ROC曲线显示其曲线下面积为0.826高于常规组ROC曲线显示其曲线下面积为0.747。结论 与常规剂量相比,低剂量CT扫描模式下建立特征参数曲线模型对肺结节鉴别诊断更有可量化意义。

Objective The quantitative significance of differential diagnosis of pulmonary nodules under different CT scanning conditions was analyzed by establishing characteristic parameter curve model. Methods CT plain chest scan images of patients with pulmonary nodules treated in our hospital from September 2018 to October 2019 were analyzed retrospectively. The inclusion criteria were nodule diameter ≥3 mm and no other medical history. Of the 96 selected samples, 68 met the criteria (39 males and 29 females).According to the different scanning dose, the subjects were divided into low dose observation group (tube voltage 120 kV, tube current 20 mA) and conventional dose group (tube voltage 120 kV, tube current 150 mA).There were 34 cases in each group, and the correlation between different tube current and effective radiation dose and image quality were observed by measuring and calculating the relevant parameters of scanning length, effective dose, sample shape and signal-to-noise ratio. PACS artificial intelligence software and artificial synthesis were used to extract the characteristic information (diameter, volume, density texture, edge details, internal structure) of pulmonary nodules and record the data. Furthermore, the mass of pulmonary nodules was calculated by formula, the differences of parameters under different tube currents were compared by U test, the volume and mass of important parameters determined by unit logic were incorporated into multivariate logic analysis. The curve model of characteristic parameters was established, the area under the curve was measured and ROC was sketched. Chi-square analysis was used to evaluate the difference of characteristic parameter curve model for quantitative diagnosis of pulmonary nodules under different tube currents, and to compare the image quality under different tube currents at the same time. Results In the study, it is found that the effective radiation dose received by the sample increases linearly with the increase of tube current under the condition of constant tube voltage. The CT images of obese patients (BMI≥23.9) showed obvious noise when using low dose scan, which affected the inter-tissue observation. However, in the CT images of the samples with BMI standard (18.5 ≤ BMI ≤ 23.9), there was no obvious trend threshold between the signal-to-noise ratio and tube current of pulmonary nodules, and the difference was not statistically significant (P<0.05).The characteristic parameter curve model showed that the volume and mass homogeneity curve of pulmonary nodules showed the change trend was correlated with the change of tube current, and the stability and consistency were good, so the two elements were the main analytical components of the model. The ROC curve of the observation group showed that the area under the curve was 0.826, which was higher than that of the conventional group, the area under the curve of the ROC curve was 0.747. Conclusion Compared with conventional dose, the establishment of characteristic parameter curve model under low dose CT scan mode is more quantifiable for differential diagnosis of pulmonary nodules.

目的 探讨多参数磁共振成像-经直肠超声(mpMRI-TRUS)认知融合技术引导前列腺穿刺活检的临床应用价值。方法 选取2018 年1月—2020年12月就诊于本院且为前列腺癌疑似患者作为研究对象,分为mpMRI-TRUS组与TRUS组。mpMRI-TRUS组所有病例穿刺活检前均行mpMRI检查,根据MRI结果确定靶向病灶,行mpMRI-TRUS认知融合靶向活检和系统10针活检。TRUS组患者只行系统13针活检,比较两组间前列腺癌的检出率,同时比较mpMRI-TRUS组中靶向活检和系统活检在前列腺癌检出率方面的差异,并对穿刺病理结果进行观察和分析。结果 mpMRI-TRUS组穿刺活检阳性率为43.59%,TRUS组穿刺活检阳性率为33.07%,两组前列腺癌检出率差异无统计学意义。mpMRI-TRUS组中靶向穿刺的单针阳性率、靶向穿刺组织前列腺癌组织占比高于系统穿刺;mpMRI-TRUS组中靶向穿刺阳性率为38.46%,系统穿刺阳性率为42.30%,两者差异无统计学意义。结论 mpMRI-TRUS认知融合技术在前列腺穿刺活检能够以较少的穿刺针数检出前列腺癌,靶向穿刺能提供更多前列腺癌组织,降低前列腺癌穿刺活检的漏诊率。

Objective To explore the clinical application value of multi-parameter magnetic resonance imaging-transrectal ultrasound (mpMRI-TRUS) cognitive fusion technology to guide targeted prostate biopsy. Methods The research objects were patients suspected of prostate cancer from January 2018 to December 2020 and the patients were divided into mpMRI-TRUS group and TRUS group. All cases in the mpMRI-TRUS group underwent mpMRI examination before needle biopsy. The targeted lesions were determined according to the MRI results.And mpMRI-TRUS cognitive fusion targeted biopsy and system 10-needle biopsy were performed. Patients in the TRUS group only underwent a systematic 13-needle biopsy. The detection rate of prostate cancer between the two groups was compared. At the same time, the difference in the detection rate of targeted biopsy and systematic biopsy in the mpMRI-TRUS group was also compared. The pathological results of puncture were observed and analyzed. Results The positive rate of needle biopsy in the mpMRI-TRUS group was 43.59%, and the TRUS group was 33.07%. There was no significant difference in the detection rate of prostate cancer between the two groups. In the mpMRI-TRUS group, the single-needle positive rate and the proportion of prostate cancer tissue were higher than that of system puncture. The positive rate of targeted puncture in the mpMRI-TRUS group was 38.46%, and the system puncture was 42.30%. The difference between the two groups is not statistically significant. Conclusion The mpMRI-TRUS cognitive fusion technology can detect prostate cancer with fewer needles in prostate biopsy. Targeted biopsy puncture can provide more prostate cancer tumor tissues and reduce the missed diagnosis rate of prostate cancer biopsy.

目的 探讨无症状感染者在新冠肺炎家庭聚集性疫情中的传播风险,分析家庭聚集性疫情中所有患者的住院治疗情况,为防控策略和治疗方案制定提供依据。方法 通过现场流行病学调查获得旅居史和暴露危险因素,并收集临床治疗资料,利用统计软件进行作图和分析。结果 指示病例的潜伏期为15天,其余4名家庭成员的潜伏期为1～15天,其中指示病例作为无症状感染者,在感染后第4～6天内具有传染性相继导致4名成员感染;指示病例携带病毒8天以上,其余4人从2天到31天不等; 症状持续时间5~20天,住院期间共进行CT检查次数为4～10次,肺部炎症最快在住院第三天好转。发病初期只有1个病例出现白细胞、淋巴细胞降低。发病到就诊和住院的时间间隔为1～10天,平均住院时间为23.4天。结论 无症状感染者在家庭聚集性疫情传播中具有关键作用,难以及时发现,存在较大传播风险,为新冠肺炎疫情防控带来较大难度。

Objective To study the transmission risk of asymptomatic patient in a family-clustered outbreak of new coronavirus pneumonia, analyze the hospitalization,and provide a basis for prevention strategies and treatment plan. Methods We collected the information about residence history and exposure risks by onsite epidemiological investigation, and collected clinical treatment-related data, used statistical software for mapping and analysis. Results The incubation period of the indicated case was 15 days, and the incubation period of the remaining four family members were 1-15 days. The indicated case as an asymptomatic patient had infectious succession within 4-6 days after infection,and four family members were infected one after another. The indicated case carried the virus for more than 8 days, and the remaining 4 patients ranged from 2 to 31 days. The duration of symptoms was 5-20 days of all 5 patients, and the number of CT examinations during hospitalization was 4-10 times. The pulmonary inflammation was improved on the third day of hospitalization at best. In the early stage of the disease, only one patient had leukopenia and lymphopenia decreased. The interval between onset and hospitalization was 1-10 days for five family members, with an average hospitalization time of 23.4 days. Conclusion The asymptomatic infected patient of COVID-19 plays a key role in the family convergence epidemic transmission. The symptoms are inapparent, so it is difficult to find in time. It will cause the risk of infection and increase the difficulty of COVID-19 prevention and control.

目的 探究椎间孔镜下治疗腰椎间盘突出症切除黄韧带对腰椎前凸角、骶骨倾斜角、腰椎曲线指数及椎间隙高度的影响。方法 选择120例腰椎间盘突出症患者,随机分为观察组与对照组各60例。观察组患者椎间孔镜术中切除部分黄韧带;对照组患者保留黄韧带。比较两组患者术后半年、1年及2年的腰椎前凸角、骶骨倾斜角、腰椎曲线指数及椎间隙高度。结果 观察组术后半年、1年腰椎前凸角、骶骨倾斜角、腰椎曲线指数及椎间隙高度与对照组比较(P＞0.05)。观察组术后2年与对照组比较(P＜0.05)。结论 椎间孔镜下治疗腰椎间盘突出症保留黄韧带术后腰椎前凸角、骶骨倾斜角、腰椎曲线指数及椎间隙高度远期效果优于切除黄韧带。

Objective To explore the effects of ligamentum flavum resection on lumbar lordosis angle, sacral inclination angle, lumbar curve index and height of intervertebral space. Methods 120 patients with lumbar disc herniation were randomly divided into observation group and control group. In the observation group, part of the ligamentum flavum was excised by endoscope and in the control group, the ligamentum flavum was preserved. The lumbar lordosis angle, sacral inclination angle, lumbar curve index and intervertebral space height of the two groups were compared at 6 months, 1 year and 2 year after operation. Results At 6 months, 1 year after operation, the lumbar lordosis angle, sacral inclination angle, lumbar curve index and height of intervertebral space in the observation group were compared with those in the control group(P＞0.05). 2 years after operation, the observation group was compared with the control group(P<0.05). Conclusion The long-term effect of ligamentum flavum preserving on lumbar lordosis angle, sacral inclination angle, lumbar curve index and height of intervertebral space is better than that of ligamentum flavum resection.