目的 观察四通道FES对脑卒中患者下肢运动功能的影响,为其临床应用及推广提供依据。方法 将入组的49例脑卒中患者随机分为四通道FES组(17例)、单通道FES组(16例)和对照组(16例),三组患者均进行(除电刺激)综合康复训练,四通道FES组模仿正常人行走时肌肉收缩的时序刺激患侧下肢的股四头肌、胫骨前肌、腓肠肌及腘绳肌。单通道FES组患者仅在迈步时刺激患侧下肢的胫骨前肌,而股四头肌、腓肠肌、腘绳肌三块肌肉仅作安慰刺激。对照组患者在上述四块肌肉处做安慰刺激(即仅在这四处肌肉贴电极片,但没有电流)。治疗时间为每周5次,持续2周共10次,在治疗前、治疗后1周、治疗后2周分别进行患侧下肢运动功能评定及平衡功能评估。结果 组内前后比较:两组患者治疗前、治疗后一周、治疗后两周下肢功能(FMA)及平衡功能(Berg)逐步提高(P＜0.05)。组间比较:治疗后一周三组差异无统计学意义(P＞0.05);治疗后两周三组有统计学意义,经过两两比较发现,只有四通道组与对照组之间差异有统计学意义(P＜0.05),其他两组之间均无统计学意义。结论 应用基于正常行走模式四通道FES治疗可以改善患者的下肢功能及平衡功能。

目的 探讨血培养分离菌的分布特点及耐药性,为临床科室诊治血流感染疾病和控制感染提供重要的参考依据。方法 收集某院2016—2020年血培养阳性样本,采用细菌鉴定和药敏分析系统检测,用WHONET 5.6软件进行病原菌分布特点及药敏结果的整理分析。结果 从血培养阳性标本分离出非重复菌3 424株,主要来自老年病科、危重症监护室、急诊留观室等。其中革兰阴性菌1 873株,常见有大肠埃希菌、肺炎克雷伯菌、铜绿假单胞菌等。近五年超广谱β-内酰胺酶革兰阴性耐药菌呈缓慢上升趋势,其余耐药菌变化趋势不大。革兰阴性菌对头孢哌酮/舒巴坦、哌拉西林/他唑巴坦、头孢他啶、头孢吡肟、庆大霉素、妥布霉素、阿米卡星等总体耐药率均＜30%。革兰阳性菌1 328株,主要是葡萄球菌属,对达托霉素、替加环素均无耐药,对利奈唑胺、万古霉素、替考拉宁耐药率处于较低水平,对复方新诺明和克林霉素等的耐药率近五年呈缓慢下降趋势。结论 血流感染主要常见分离菌为肠杆菌属和葡萄球菌属,临床应重视早期规范血培养和药敏结果,科学合理规范使用抗菌药。

Objective To investigate the distribution characteristics and drug resistance of isolates from blood culture, and to provide important reference for the diagnosis and treatment of bloodstream infection and infection control in clinical practice. Methods Positive blood culture samples of a hospital from 2016 to 2020 were collected and detected by bacteria identification and drug sensitivity analysis system. The distribution characteristics of pathogenic bacteria and drug sensitivity results were analyzed by WHONET 5.6 software. Results A total of 3 424 non-repeating strains were isolated from positive blood culture specimens, which were mainly from geriatrics department, critical care unit, emergency observation room, etc.Among them, 1 873 strains of Gram-negative bacteria were found, including Escherichia coli, Klebsiella pneumoniae and Pseudomonas aeruginosa. In recent five years, the extended-spectrum beta-lactamases Gram-negative drug resistant bacteria was slowly increasing, while other drug resistant bacteria showed little change. The overall drug resistance rates of Gram-negative bacteria to cefoperazone/sulbactam, piperacillin/tazobactam, ceftazidime, cefepime, gentamicin, tobramycin and amicacin were all less than 30%. There were 1 328 Gram-positive strains, mainly Staphylococcus, showed no resistance to datoromycin and tegacycline, and the resistance rates to linezolid, vancomycin and teicolanin were at a low level, while the resistance rates to cotrimoxazole and clindamycin showed a slow declining trend in recent five years. Conclusion Enterobacteria and Staphylococcus were the most common isolates of bloodstream infection. In clinical practice, attention should be paid to the early blood culture and drug sensitivity results, and the antimicrobial drugs should be used scientifically and rationally.

目的 探究序贯器官衰竭评分(sequential organ failure assessment,SOFA)联合可溶性程序性死亡因子-1(soluble programmed death-1,sPD-1)水平对脓毒症患者的预后影响。方法 选我院2019年3月—2021年3月期间86例脓毒症患者为研究对象,依据其预后情况(28 d转归)分为生存组(59例)、死亡组(27例),记录两组患者sPD-1、炎症细胞因子水平、SOFA评分及急性生理学与慢性健康状况评价系统Ⅱ(APACHEⅡ)评分情况,分析28 d死亡危险因素,并以ROC曲线分析SOFA+sPD-1对脓毒症患者预后评估价值。结果 死亡组年龄、C反应蛋白、降钙素原、sPD-1水平及SOFA、APACHEⅡ评分均较生存组高(P＜0.05);经Logistic回归分析,sPD-1、SOFA、APACHEⅡ为28 d死亡脓毒症患者独立预测因素(P＜0.05);联合预测后,SOFA+sPD-1的ROC曲线下面积最大,为0.862,敏感度、特异度分别为88.89%、88.14%。结论 在对脓毒症患者预后评估中,sPD-1、SOFA评分均为28 d病死独立预测因素,且SOFA+sPD-1对脓毒症患者转归预测能力更为理想。

Objective To explore the effect of sequential organ failure assessment (SOFA) combined with soluble programmed death factor-1 (sPD-1) level on the prognosis of patients with sepsis. Methods A total of 86 patients with sepsis in our hospital from March 2019 to March 2021 were selected and divided into survival group (59 cases) and death group (27 cases) according to their prognosis (28-day outcome). The levels of sPD-1, inflammatory cytokines, SOFA and APACHEⅡ scores of two groups were recorded. The risk factors of 28-day mortality were analyzed. The prognostic values of SOFA+sPD-1 in patients with sepsis were analyzed by ROC curve. Results Age, C-reactive protein (CRP), procalcitonin (PCT) and sPD-1 levels and SOFA, APACHEⅡ scores of death group were higher than those of survival group (P＜0.05). By Logistic regression analysis, sPD-1 level, SOFA and APACHEⅡ scores were identified as independent predictors of 28-day death in patients with sepsis (P＜0.05). After combining prediction, the area under the ROC curve of SOFA+sPD-1 was the largest (0.862), and the sensitivity and specificity were 88.89% and 88.14% respectively. Conclusion In the prognosis evaluation of patients with sepsis, both sPD-1 level and SOFA score were independent predictors of 28-day mortality, and SOFA+sPD-1 was more effective in predicting the prognosis of patients with sepsis.

目的 分析高龄呼吸道感染患者病原菌检测结果及耐药性情况,总结高龄呼吸道感染患者抗菌药物的合理用药经验。方法 对我院2018年1月—2020年12月收治的784例高龄呼吸道感染患者痰液标本进行病原菌培养及药敏试验,统计分析检测结果。结果 701株病原菌中,革兰阴性(G-)菌、革兰阳性(G+)菌和真菌分别检出497株、136株和68株,分别占70.90%、19.40%和9.70%。G-菌以肺炎克雷伯菌、铜绿假单胞菌、大肠埃希菌和奇异变形杆菌为主,分别占21.97%(154株)、18.97%(133株)、14.98%(105株)和7.13%(50株),G+菌以金黄色葡萄球菌为主,占11.27%(79株)。G-菌耐药性前五位依次为氨苄西林、哌拉西林、复方磺胺甲噁唑、头孢唑啉和头孢他啶,耐药率依次为95.96%、85.11%、79.88%、77.06%和52.92%。G+菌耐药性前五位依次为青霉素、氨苄西林、红霉素、环丙沙星和复方磺胺甲噁唑,耐药率依次为95.59%、89.71%、84.56%、80.15%和75.00%。结论 高龄呼吸道感染患者病原菌构成以肺炎克雷伯菌、铜绿假单胞菌、大肠埃希菌、奇异变形杆菌和金黄色葡萄球菌为主,G-菌对氨苄西林、哌拉西林、复方磺胺甲噁唑、头孢唑啉和头孢他啶耐药最强,G+菌对青霉素、氨苄西林、红霉素、环丙沙星和复方磺胺甲噁唑最强,且呈多重耐药特征,加强临床耐药性监测有助于指导合理用药。

Objective To analyze the test results and drug resistance of pathogenic bacteria in elderly patients with respiratory tract infections, and summarize the rational use of antibiotics in elderly patients with respiratory tract infections. Methods The sputum samples of 784 elderly patients with respiratory tract infections admitted to our hospital from January 2018 to December 2020 were collected for pathogen culture and drug sensitivity test, and the test results were statistically analyzed. Results Among 701 strains of pathogenic bacteria, 497 strains were Gram-negative (G-) bacteria (70.90%), 136 strains were Gram-positive (G+) bacteria (19.40%) and 68 strains were fungi (9.70%). G-bacteria were mainly Klebsiellapneumoniae, Pseudomonas aeruginosa, Escherichia coli and Proteus mirabilis, accounting for 21.97% (154 strains), 18.97% (133 strains), 14.98% (105 strains) and 7.13% (50 strains). G+bacteria were mainly Staphylococcus aureus, accounting for 11.27% (79 strains). The top five antibiotics which G-bacteria resisted were ampicillin, piperacillin, compound sulfamethoxazole, cefazolin and ceftazidime.The resistance rates were 95.96%, 85.11%, 79.88%, 77.06% and 52.92%,respectively. The top five antibiotics which G+bacteria resisted were penicillin, ampicillin, erythromycin, ciprofloxacin and compound sulfamethoxazole, and the drug resistance rates were 95.59%, 89.71%, 84.56%, 80.15% and 75.00%, respectively. Conclusions The pathogenic bacteria in elderly patients with respiratory tract infections were mainly Klebsiella pneumoniae, Pseudomonas aeruginosa, Escherichia coli, Proteus mirabilis and Staphylococcus aureus. G-bacteria resisted ampicillin, piperacillin,compound sulfamethoxazole, cefazolin and ceftazidime the most. G+bacteria were most resistant to penicillin, ampicillin, erythromycin, ciprofloxacin and compound sulfamethoxazole, and were characterized by multi-drug resistance.Enhancing bacterial resistance monitoring helps guiding the rational use of drugs.

目的 探究二甲双胍在多囊卵巢综合征(polycystic ovary syndrome,PCOS)患者中的促排卵效果。方法 选取2019年1月—2020年12月收治的66例PCOS患者进行回顾性分析,以治疗方案为依据进行分组(对照组、观察组),对照组均采用炔雌醇环丙孕酮进行治疗(n=33),观察组则在其基础上联合二甲双胍进行治疗(n=33),对比两组患者的性激素水平[黄体酮生成素(luteinizing hormone,LH)、睾酮(testosterone,T)]、血糖指标[空腹血糖(fasting plasma glucose,FPG)、空腹胰岛素(fasting insulin,FINS)、胰岛素抵抗指数]及促排卵效果。结果 观察组在治疗后的LH、T水平均低于对照组(P＜0.05);且观察组在治疗后的FPG、FINS、胰岛素抵抗指数水平均低于对照组(P＜0.05);此外,经过治疗后,观察组患者的排卵率为54.5%,高于对照组的30.3%(P＜0.05)。结论 将二甲双胍应用于PCOS患者的治疗方案中,可显著改善其性激素水平及血糖代谢情况,促进排卵率的提升,在PCOS导致的不孕症治疗中具有积极的应用价值。

Objective To explore the effect of metformin on ovulation induction in patients with polycystic ovarian syndrome (PCOS). Methods A total of 66 cases of PCOS patients from January 2019 to December 2020 were retrospectively analyzed and divided into control group and observation group according to the treatment plan. The control group was treated with ethinylestradiol and cyproterone (n=33), while the observation group was treated with metformin additionally (n=33). The levels of sex hormone (luteinizing hormone,testosterone),the indexes of fasting plasma glucose (FPG), fasting insulin (FINS) and homeostasis model assessment for insulin resistance (HOMA-IR) in the two groups were compared. The effects of ovulation induction were evaluated. Results The hormone levels of the observation group after treatment were lower than those of the control group (P<0.05); and the FPG, FINS and HOMA-IR levels of the observation group after treatment were lower than those of the control group (P<0.05); in addition,the ovulation rate of the observation group was 54.5% after treatment, which was higher than that of the control group (30.3%, P<0.05). Conclusion Metformin in the treatment of PCOS patients could greatly improve their sex hormone levels and blood glucose metabolism, promote ovulation rate, and has application value in the treatment of infertility caused by PCOS.

目的 分析绝经前后女性2型糖尿病(type 2 diabetes mellitus,T2DM)患者C肽水平与代谢综合征(metabolic syndrome,MS)的关系。方法 选定本院2019年3月—2021年3月接诊的64例绝经前后T2DM患者作为试验组,以及同期门诊体检的64例健康女性作为参照组,检测并比较两组空腹C肽、餐后2 h C肽、血糖指标、血清炎症指标、血脂指标、血压指标,比较两组MS发生率,Pearson分析空腹C肽、餐后2 h C肽与血糖指标、血清炎症指标、血脂、血压的相关性。结果 试验组空腹C肽、餐后2h C肽、餐后2 h 血糖、空腹血糖、白细胞计数、TNF-α、IL-6、LDL-C、甘油三酯、总胆固醇、收缩压、舒张压均高于参照组,试验组HDL-C低于参照组,P＜0.05。试验组MS发生率(12.50%)高于参照组(1.56%),P＜0.05。空腹C肽、餐后2 h C肽与2 h PG、FPG、WBC、TNF-α、IL-6、LDL-C、TG、TC、SBP、DBP呈正相关性,与HDL-C呈负相关性,P＜0.05。结论 绝经前后T2DM患者普遍存在血脂、血压、血糖代谢紊乱及炎症反应,C肽水平增高会增加MS发生率,应当引起临床重视。

Objective To analyze the relationship between C-peptide and metabolic syndrome (MS) in premenopausal and postmenopausal women with type 2 diabetes mellitus (T2DM). Methods A total of 64 premenopausal and postmenopausal T2DM patients in our hospital from March 2019 to March 2021 were included in the experimental group, and 64 healthy women in the same period were selected as the control subjects. Fasting C-peptide, postprandial 2h C-peptide and blood glucose, serum inflammatory factors, blood lipid and blood pressure were detected and compared between the two groups. The incidence of MS was compared between the two groups. The relationship among fasting C-peptide, postprandial 2h C-peptide and blood glucose, serum inflammation, blood lipid and blood pressure were analyzed by Pearson correlation. Results Fasting C-peptide,postprandial 2h C-peptide, 2hPG, FPG, WBC, TNF-a, IL-6, LDL-C, TG, TC, SBP, DBP of the experimental group were higher than those of the control group. HDL-C of the experimental group was lower than that of the control group, P<0.05. The incidence of MS in the experimental group (12.50%) was higher than that in the control group (1.56%), P< 0.05. Fasting C-peptide and postprandial 2h C-peptide were positively correlated with 2hPG, FPG, WBC, TNF-a, IL-6, LDL-C, TG, TC, SBP and DBP, and negatively correlated with HDL-C (P<0.05). Conclusion The metabolic disorder of blood lipid, blood pressure, blood glucose and inflammatory reaction were common in T2DM patients before and after menopause. The increase of C-peptide level would increase the incidence of MS, which should be paid attention in clinic practice.

目的 分析口腔种植修复和常规修复在牙列缺损治疗中的有效性。方法 选定本院2019年1月—2020年12月接诊的120例牙列缺损患者,根据修复治疗方法的不同分组,参照组60例患者采取常规修复治疗,实验组60例患者采取口腔种植修复,比较两组临床疗效、龈沟炎症因子水平、并发症发生率、满意度评分。结果 实验组临床总有效率(96.67%)高于参照组(78.33%),实验组治疗后龈沟TNF-α、IL-8、IL-6因子均低于参照组,实验组并发症发生率(1.67%)低于参照组(13.33%),实验组患者满意度评分均高于参照组,差异均有统计学意义(P＜0.05)。结论 口腔种植修复可有效改善牙列缺损患者语言、咀嚼功能,减轻龈沟炎症反应,减少并发症,提高患者满意度。

Objective To analyze the efficacy of dental implant and conventional repair in the treatment of dentition defects. Methods A total of 120 patients with dentition defects in our hospital from January 2019 to December 2020 were selected and divided into two groups according to different treatment methods. Sixty patients in the control group were treated with conventional repair, and 60 patients in the experimental group were treated with dental implant repair. The clinical efficacy, gingival crevicular inflammatory factors level, complication incidence and satisfaction score of the two groups were compared. Results The clinical efficacy of the experimental group (96.67%) was higher than that of the control group (78.33%), the levels of TNF-α, IL-8 and IL-6 in the gingival sulcus of the experimental group were lower than those of the control group after treatment, the complications incidence of the experimental group (1.67%) was lower than that of the control group (13.33%), and the satisfaction score of the experimental group was higher than that of the control group, the differences were statistically significant (P＜0.05). Conclusion Dental implant repair could effectively improve the language and chewing function of patients with dentition defects, reduce gingival crevicular inflammatory reaction, complications and improve patients' satisfaction.

目的 分析河源市学龄前儿童发生小细胞低色素性贫血的病因。方法 对我院进行健康体检小细胞低色素性贫血儿童287例进行血常规、血清铁蛋白及地中海贫血基因检测。结果 在所研究的287 例小细胞低色素性贫血儿童病例中,分别检出 α地中海贫血 127例,β地中海贫血 48例,α/β复合地中海贫血2例;铁缺乏 83例 (合并地中海贫血20例, 缺铁性贫血45例),不明原因贫血47例。地中海贫血检出率为61.67%,铁缺乏检出率为21.95% 。结论 地中海贫血是河源市学龄前儿童发生小细胞低色素性贫血最主要的原因,其次是铁缺乏,各年龄段儿童以轻度贫血为主,6月~1岁,1~3岁为铁缺乏高发年龄。α地中海贫血基因型以--^SEA/αα最常见,β地中海贫血以βIVS-II-654/β^N最常见,小细胞低色素症在静止型最常见。

Objective To analyze the causes of microcytic hypochromic anemia in preschool children in Heyuan City. Methods A total of 287 cases with microcytic hypochromic anemia were selected in our hospital. The indexes of hematology, serum ferritin were detected and genetic testing for thalassemia was performed. Results Through genetic analysis, 127 of 287 cases of microcytic hypochromic anemia were confirmed with α-thalassaemia,48 cases with β-thalassaemia,2 cases with compound α/β-thalassaemia and 83 cases with iron deficiency (20 thalassemia cases and 45 iron deficiency anemia cases). Thalassaemia detection rate was 61.67%, iron deficiency detection rate was 21.95%. Conclusion Thalassaemia was the main reason of microcytic hypochromic anemia in preschool children in Heyuan City, followed by iron deficiency. The mild anemia was the main type among all age groups, children aged 0.5-3 had higher iron deficiency rate. The main type of α-thalassaemia was --^SEA/αα, the main type of β-thalassaemia was βIVS-II-654/β^N and the main type of microcytic hypochromic was static type.

目的 探讨个体化低速率对比剂注射方案联合低管电压扫描在低体质量指数(body mass index,BMI)受检者头颈部CT血管成像的可行性。方法 选取我科2020年1月—2020年11月低BMI受检者头颈部CTA检查90例进行研究,随机分成三组,每组30例。A组80 kV扫描,低流速、低总量注射方案; B组120 kV扫描,高流速、低总量注射方案;C组为120kV扫描条件,高流速、高总量注射方案。对比各组注射流速、注射总量、辐射剂量长度乘积(dose legth product,DLP),评价各组图像的主动脉弓、颈总动脉、基底动脉、胸锁乳突肌中段的CT值、信噪比及对比信噪比,由两名有经验的放射科医生对各组图像质量进行主观评价。结果 图像质量主观评价A、B两组图像评分集中在4分段,C组图像评分集中在3分段,A、B组与C组主观评分比较差异有统计学意义(P<0.05)。A组对比剂注射流速和DLP比B、C组分别下降27.75%、47.10%;A、B组对比剂注射总量较C组下降39.87%,差异有统计学意义(P<0.05)。A组各血管CT值对应比B、C组数值稍高,除主动脉弓CT值外其余血管客观参数对比均有差异(P<0.05)。结论 低BMI受检者头颈部CT血管个体化低流速精准对比剂注射方案联合低管电压扫描技术在获得满足诊断要求图像质量的前提下,既能降低受检者对比剂注射速率和注射风险,又能降低辐射剂量,值得推广应用。

Objective To explore the feasibility of individualized low rate contrast agent injection scheme combined with low tube voltage scanning in CTA imaging of low body mass index(BMI) subjects' head and neck. Methods Ninety cases of head and neck CTA examination of low BMI subjects in our department from January 2020 to November 2020 were selected for the study, and randomly divided into three groups with 30 cases in each group. Group A applied 80 kV scanning, low flow rate and low total volume injection scheme. Group B applied 120 kV scanning, high flow rate, low total volume injection scheme. Group C applied 120 kV scanning, high flow rate and high total volume injection scheme. The injection velocity, injection volume, radiation dose length product (DLP) among three groups were compared. In each image of the aortic arch, common carotid artery, basilar artery and the central part of sternocleidomastoid, the CT value, the signal-to-noise ratio and contrast-to-noise ratio were evaluated. Two experienced radiologists performed image quality evaluation. Results Image quality in group A and B by subjective evaluation got 4 points out of 4, and group C got 3 points out of 4, and there was statistical difference between group A, B and C in subjective evaluation of image quality (P<0.05). The injection velocity and DLP of contrast agent in group A were 27.75% and 47.10% lower than those in group B and C, respectively. The total amount of contrast agent injection in groups A and B was decreased by 39.87% compared with group C, with statistical difference (P<0.05). The corresponding CT values of each vessel in group A were slightly higher than those in group B and C, and there were statistically significant differences in the Objective parameters of other vessels except for aortic arch (P<0.05). Conclusion The combination of individualized low flow rate and precise contrast agent injection scheme with low tube voltage scanning technology for low BMI subject could not only reduce the injection rate and risk of contrast agent, but also reduce radiation dose, on the premise of meeting the diagnostic requirements of image quality. It is worthy of popularization and application.

目的 探讨以跨肺压导向的呼气末正压通气在急性呼吸窘迫综合征(acute respiratory distress syndrome,ARDS)的临床应用效果。方法 将2020年1月—10月重症医学科收治的100例ARDS患者随机分为对照组和观察组各50例,对照组采用小潮气量辅助控制通气治疗,观察组以跨肺压(transpulmonary pressure,Ptp)为导向选择最佳呼气末正压(positive end-expiratory pressure,PEEP)进行机械通气治疗,观察比较两组患者治疗前和治疗48 h的呼吸动力学指标、血气分析指标,随访28 d病死率。结果 治疗48 h,潮气量、PEEP、肺静态顺应性、PaCO₂、PaO₂、SaO₂、PaO₂/FiO₂观察组明显高于对照组(P＜0.05);随访28 d病死率观察组和对照组比较差异无统计学意义(P＞0.05)。结论 以Ptp为导向选择最佳PEEP的机械通气治疗ARDS可以有效改善患者的呼吸动力学指标和血气分析指标,不增加ARDS的病死率,值得临床推广应用。

Objective To investigate the clinical effect of positive end-expiratory pressure(PEEP) ventilation guided by transpulmonary pressure (Ptp) in acute respiratory distress syndrome (ARDS). Methods Between January and October 2020, 100 cases of ARDS treated in intensive care unit were randomly divided into control group and observation group with 50 cases each. Control group used auxiliary control small tidal volume ventilation therapy, and observation group used the best PEEP mechanical ventilation therapy with the guiding of Ptp. The respiratory dynamics index, blood gas analysis results, follow-up of 28d case fatality rate before and 48h after treatment between the two groups were compared. Results After 48h of treatment, tidal volume、PEEP、pulmonary static compliance、PaCO₂、PaO₂、SaO₂、PaO₂/FiO₂ of the observation group were all higher than those of the control group (P<0.05). There was no statistically significant difference in mortality between the two groups at 28d follow-up (P＞0.05). Conclusion Mechanical ventilation with the best PEEP guided by Ptp could effectively improve the respiratory dynamic index and blood gas analysis results of patients with ARDS, without increasing the mortality of ARDS, which is worthy of clinical application.