目的 探讨广州地区老年住院患者营养状态与日常生活能力(ADL)的相关性。方法 选取2018年7月—2019年6月在广州市第一人民医院住院年龄≥60岁的老年人共275例,收集其一般资料信息,各项临床营养指标(BMI、血清白蛋白、血红蛋白、总胆固醇、甘油三酯)、并运用营养风险筛查2002(NRS2002)评估营养风险、采用Barthel指数评定量表评估日常生活能力;分析老年住院患者营养状态与ADL之间的相关性。结果 在本组研究中,根据NRS2002评分(营养风险:NRS2002≥3;无营养风险NRS2002＜3),营养风险发生率58.9%(162/275);无营养风险发生率41.1%(113/275)。老年住院患者的NRS2002评分与ADL评分呈负相关关系(r=-0.393,P＜0.05);ADL评分与BMI、血清白蛋白、总胆固醇、血红蛋白水平呈正相关关系(P＜0.05)。结论 广州地区老年住院患者NRS2002为日常生活能力的影响因素,通过降低NRS2002评分来减少营养风险可改善老年人的日常生活能力;老年人的营养风险发生率高,应当尽早进行营养干预。

Objective To investigate relationship between nutritional status and activities of daily living(ADL) in elderly inpatients in Guangzhou. Methods Total of 275 people older than 60 were included in this study from Guangzhou First People's Hospital from July 2018 to June 2019. Their nutritional markers(including BMI, plasma albumin, hemoglobin, total cholesterol, triglyceride),the activities of daily living(ADL) were evaluated with Barthel index and the nutrition risk screening 2002(NRS2002)used to assess the nutritional risk status were collected to analyze the relationship between nutrition and ADL. Results In these subjects, based on the NRS2002 scores(nutritional risk that the NRS2002 scores were equal or greater than 3, and the non-nutritional risk that the NRS2002 scores were less than 3),58.9%(162/275) patients were having nutritional risk and 41.1%(113/275) were having non-nutritional risk. In elderly inpatients,NSR2002 were negatively associated with ADL(r=-0.393,P＜0.05). ADL was positively associated with BMI, plasma albumin and hemoglobin level(P<0.05). Conclusion In the old, the NRS2002 is an influencing marker of activities of daily living in Guangzhou. Reducing the nutritional risk by lowering the NRS2002 scores can improve ADL in the elderly. The incidence of nutritional risk is highly prevalent in elderly and early nutritional treatment will be needed.

目的 了解从化地区儿童人冠状病毒((human coronavirus,HCoV)流行情况和临床特点,观察人冠状病毒分型OC43(HCoV-OC43)基因分布特点,探讨从化地区小儿呼吸道感染HCoV-OC43分离株与国内的HCoV-OC43分离株的同源性与基因分型,探讨HCoV-OC43与小儿呼吸道感染疾病的关系,为预防和控制呼吸道疾病提供依据。方法 本研究从化地区2017年1月—2019年6月门诊就诊的6个月~14岁的儿童610例,采集鼻咽拭子标本,病毒检测阳性的患者,这些标本取自患有急性上呼吸道感染或下呼吸道感染疾病的患者,表现出呼吸道感染的症状,例如发热(体温> 37.5℃)、咽痛、流涕、鼻塞、咳嗽和咳痰等。采用荧光定量PCR方法,对HCoV-OC43病毒核酸进行分析和测序。采用直接免疫荧光法检测其他7种常见呼吸道病毒;包括:流感病毒 A、B型(influenza virus,IVA、B)、副流感病毒Ⅰ、Ⅱ、Ⅲ 型 (parainfluenza virus, PIVⅠ、Ⅱ和Ⅲ)、呼吸道合胞病毒(respiratory syncytial virus, RSV)、腺病毒(ad enovirus, ADV)共七种常见呼吸道病毒进行检测,通过HCoV-OC43和常见呼吸道病毒的病毒监测,找出从化地区呼吸道感染患儿HCoV-OC43的N蛋白编码基因的特征。结果 从化地区6月~14岁的呼吸道感染儿童610例,采集鼻咽拭子标本,病毒检测阳性的患者,分析了8种呼吸道病毒,重点分析HCoV-OC43的临床特点。从发病时间月份分布可以看出,人HCoV-OC43主要是在春季流行, HCoV-OC43全年均可检出,春季4月份和5月份检出率较高,冬季较低,但不同月份的检出率无差异。各种常见病毒的发病率,流感病毒A(IVA)111例(18.20%)、流感病毒B(IVB)61例(10.00%)、副流感病毒Ⅰ(PIVⅠ)42例(6.89%)、副流感病毒Ⅱ(PIVⅡ)34例(5.57%)、副流感病毒Ⅲ(PIVⅢ)77例(12.62%)、呼吸道合胞病毒(RSV)135例(22.14%)、腺病毒(ADV) 82例(13.45%),冠状病毒(HCoV-OC43)68例(11.14%)。呼吸道感染多为流感病毒(A+B)和副流感病毒(Ⅰ,Ⅱ,Ⅲ)共325例(53.28%),其次是合胞病毒感染135例(22.14%),腺病毒(ADV) 82例(13.45%),冠状病毒感染最低68例(11.14%)。建立荧光定量PCR方法检测HCoV-OC43 病毒分离及基因分型测序,阳性PCR 产物测序,与HCoV-OC43中N 蛋白基因序列进行比较分析,该地区冠状病毒具有临床多样性,与国内已发表的菌株HCoV-OC43相比具有很高的同源性。结论 人冠状病毒OC43的检出率与以前的报道相符,未发现新的传染性冠状病毒,冠状病毒HCoV-OC43的流行趋势稳定,所有呼吸道感染者均表现出正常的呼吸道感染症状。常见呼吸道病毒检测, 对临床早期诊断和合理用药具有重要意义。

目的 分析毕节地区新型冠状病毒(2019-nCoV)肺炎(novel coronavirus pneumonia,NCP)胸部CT影像学表现,探讨对NCP的临床诊断的价值。方法 回顾性分析毕节市第三人民医院2020年1月14日至2月18日收治的13例NCP患者的流行病学特征及胸部CT影像学特征。结果 13例患者中2例为长期居住在武汉来毕;1例由从上海到湖北宜昌逗留3天返毕;1例直接与武汉当地人接触;3例为与确诊病人的密切接触者;5例是聚集性发病,均与从浙江省台州市返毕确诊病人密切接触;1例无流行病学史。胸部CT影像学以双肺或一侧肺散在斑片状、磨玻璃状高密度影,密度不均,边界不清,肺野外带显著为特征。重型患者短期内肺部CT影像学变化明显。结论 确诊NCP普通型患者胸部CT影像学大多以典型表现为特征;重型NCP患者短时间内可出现实变及肺纤维化。

Objective To analyze the novel coronavirus (2019-nCoV) novel coronavirus pneumonia (NCP) chest CT imaging findings in Bijie area, and to explore the clinical diagnostic value of NCP. Methods The epidemiological characteristics and chest CT features of 13 NCP patients admitted to The Third People's Hospital of Bijie from January 14 to February 18, 2020 were analyzed retrospectively. Results Among the 13 patients, 2 lived in Wuhan for a long time, 1 stayed for 3 days from Shanghai to Yichang, Hubei, and returned home; 1 directly contacted with the local people in Wuhan; 3 closely contacted with the confirmed patients; 5 were clustered diseases, all closely contacted with the confirmed patients returning from Taizhou, Zhejiang province; 1 had no epidemiological history. CT imaging of the chest is characterized by patchy, ground glass high-density shadows scattered in two or one side of the lung, with uneven density, unclear boundary and significant lung field zone. Conclusion Most of the chest CT images of the patients with NCP were characterized by typical manifestations, while consolidation and pulmonary fibrosis were found in the patients with severe NCP in a short period of time.

目的 探讨河源地区机采血小板固定献血者血小板抗原系统的基因多态性特征,为建立本地区机采血小板供血者库奠定基础。方法 采用PCR-SSP方法对100例机采血小板固定献血者进行血小板抗原HPA1～17系统基因分型。结果 HPA1～17基因中成多态性分布的等位基因是HPA2a、HPA3a、HPA5a、HPA15a,其频率分别为0.96、0.49、0.99、0.515。HPA-2、HPA-3、HPA-5、HPA-15系统存在aa、ab、bb 三种表型。HPA1a、HPA4a、HPA6a-14a、HPA16a-17a基因频率为1,呈单线性分布,未发现b基因。结论 河源地区血小板HPA-3系统不配合率最高(0.420),HPA-15系统次之。建立本地区机采血小板供血者库,为患者提供HPA相合的血小板,对减少临床血小板输注无效的发生具有重要意义。

Objective To study the polymorphism of human platelet antigens in fixed apheresis platelet donors in Heyuan area and to lay a foundation for the establishment of platelets donor bank. Methods PCR-SSP method was used to analyze HPA 1～17 genotype in 100 fixed platelet donors. Results The highest numbers of heterozygotes were HPA2a,HPA3a,HPA5a and HPA15a,with frequencies of 0.96,0.49,0.99 and 0.515,respectively. The frequencies of HPA1a,HPA4a,HPA6a-14a and HPA16a-17a genes were 1,which showed a single linear distribution. Conclusion HPA-3 system were the highest mismatch rate (0.420),followed by HPA-15 system. It is great significance to establish a local platelet donor bank and provide HPA compatible platelets for patients.

目的 分析河源地区医疗机构临床用血合理性现状,提高临床合理输血水平。方法 选择本地区临床用血量前三位的3家综合性医院,随机抽取其2017年住院患者1 012例输血病例,判断每次输血合理性并对不合理输血原因进行分析。结果 1 012份输血病例中合理输血病例718例,合理性输血比例为70.94%。不同血制品和临床科室间用血合理性比例差异具有统计学意义(χ²=6.734、6.119,P=0.000、0.000)。红细胞输注不合理原因主要为指征过宽和无指征输血,血浆、血小板、冷沉淀输注不合理原因主要为无指征输血。结论 加强医疗机构临床用血管理,真正做到科学用血、合理用血,节约用血。

目的 探讨广州地区老年人维生素D水平及其与骨密度、甲状旁腺激素的相关性。方法 收集2016年6月—12月在广州市第一人民医院老年病科就诊的患者。检测25-羟维生素D、甲状旁腺激素、Ⅰ型前胶原氨基端前肽、β-Ⅰ型胶原C端肽、腰椎和髋部骨密度。将患者分为维生素D缺乏组(≤20 ng/mL)、维生素D不足组(20～30 ng/mL)、维生素D充足组(≥30 ng/mL)。结果 ①426例研究对象的平均年龄是(79.77±7.69)岁,25羟维生素D平均值是(20.38±8.20)ng/mL。维生素D缺乏、不足、充足者比例分别是53%(226/426)、34.3%(146/426)、12.7%(54/426)。②25羟维生素D水平随年龄增加而降低。25羟维生素D与股骨颈和全髋骨密度呈正相关(r=0.18,P＜0.001),与甲状旁腺激素呈负相关(r=-2.05,P＜0.001)。结论 广州地区老年人维生素D不足及缺乏十分普遍。维生素D与股骨颈、髋部骨密度呈正相关,与甲状旁腺激素呈负相关。

Objective To investigate the vitamin D level of elder people in Guangzhou and the relationship in vitamin D, bone mineral density and parathyroid hormone. Methods To screening elderly patients in the geriatric department of Guangzhou First peoples Hospital from June to December 2016.Serum 25-hydroxy vitamin D,parathyroid hormone,procollagen typeⅠN-terminal propeptide,β-crosslaps of C-telopeptide of typeⅠcollagen,bone mineral density were measured.Three groups were divided according to the serum 25(OH)D level,including deficiency group(≤20 ng/mL),insufficiency group(20-30 ng/mL) and sufficiency group(≥30 ng/mL). Results The mean age of the 426 subjects was 79.77±7.69 years old. The average level of 25(OH)D was 20.38±8.20 ng/mL. The proportion of vitamin D deficiency, insufficient and sufficient persons were 53% (226/426), 34.3% (146/426), and 12.7% (54/426). The level of 25 hydroxy vitamin D was decreased with age.Correlation analysis showed that 25 hydroxy vitamin D level was positive correlated with the femoral neck and total hip bone density(r=0.18,P＜0.001),was negatively correlated with parathyroid hormone(r=-2.05,P＜0.001). Conclusion Vitamin D deficiency or insufficiency is highly prevalent in elderly men in Guangzhou.25 hydroxy vitamin D level was positive correlated with the femoral neck and total hip bone density, negatively correlated with parathyroid hormone.

目的 探讨p27^Kip1蛋白的表达与梅州地区客家人食管鳞癌的关系。方法 收集我院病理科2003年1月—2008年12月的61例经手术切除的中国梅州地区客家人食管鳞癌组织及32例食管良性肿瘤组织为研究对象并包埋成蜡块。采用免疫组织化学技术检测组织中p27^Kip1蛋白的表达,结合患者的临床病理资料和随访资料,进行回顾性分析,并作出评价。结果 P27^Kip1蛋白在食管鳞癌细胞核和/或细胞浆都有表达。胞核表达阳性率为27.87%,低于食管良性肿瘤组织胞核表达（50.0%）（P<0.05）;而胞浆表达阳性率为49.18%,高于食管良性肿瘤组织胞浆表达（12.5%）（P<0.05）。无淋巴结转移的食管鳞癌p27^Kip1蛋白胞核表达阳性率为42.41%,高于有淋巴结转移者的阳性率（10.7%）,差异有统计学意义（P<0.05）;而无淋巴结转移的食管鳞癌p27^Kip1蛋白胞浆表达阳性率为42.4%,比有淋巴结转移者（57.12%）的阳性率有降低的趋势（P>0.05）。Ⅱ期（ⅡA+ⅡB）和Ⅲ期p27Kip1蛋白胞核表达阳性率分别为42.41%和10.71%,差异有统计学意义（P<0.05）;p27^Kip1蛋白胞浆表达阳性率有随着TNM分期的增高而增高的趋势（P>0.05）。结论 P27^Kip1蛋白作为肿瘤抑制因子,其在食管鳞癌的胞核和胞浆表达阳性呈相反趋势,随食管鳞癌TNM分期越高,胞核阳性率越低,胞浆阳性率越高,其可作为食管肿瘤恶性程度及进展的预测指标。

目的 了解龙川地区肺炎支原体耐药情况,以便临床合理运用抗生素。方法 收集2014年—2015年间疑似肺炎支原体感染住院小儿患者的咽分泌物标本2 666例,同时作Mp培养及IgM检查,同为阳性者共149例进行耐药性统计分析。结果 在2 666例疑似感染患者中,培养肺炎支原体阳性149例,阳性率为5.59%,学龄前儿童(≤3岁)患者阳性率2.06%,学龄儿童(4～15岁)阳性率9.79% ,学龄儿童感染肺炎支原体与学龄前儿童比较有显著差异(P<0.05)。其中红霉素、阿奇霉素、罗红霉素、克林霉素、依托红霉素、克拉霉素、乙酰螺旋霉、交沙霉素、加替沙星、莫西沙星、环丙沙星、左氧氟沙星、多西环素、米诺环素耐药率分别为2%、12.4%、4%、22% 、2%、1%、80%、44%、2%、15%、10%、1%、61%、44%。冬季感染与在其他季节比较有差异(P<0.05)。结论 阿奇霉素,红霉素为代表大环内脂类抗生素仍可以作为临床一线经验用药,乙酰螺旋霉、交沙霉素耐药率大于40%,不建议作为经验药物使用。喹诺酮类抗生素耐药率一般小于15%,可作为肺炎支原体治疗的第二选择。四环素类抗生素在本地区耐药性高,不建议作为经验药物使用。要加强预防冬季肺炎支原体感染。

目的 了解中山市7家医院金黄色葡萄球菌感染的临床分布,并对耐药基因进行检测,为临床经验治疗金黄色葡萄球菌感染提供用药及分子生物学依据。方法 收集2015年1月—2015年6月中山市7家医院分离到的金黄色葡萄球菌,使用ATB半自动细菌鉴定及药敏分析仪(法国梅里埃)对分离到的菌株进行鉴定及药敏试验,使用PCR技术对耐甲氧西林金黄色葡萄球菌(MRSA)的耐药基因进行检测。结果 7家医院共分离到89株金黄色葡萄球菌,其中MRSA检出33株,检出率为37.1%。金黄色葡萄球菌主要来源于呼吸内科(32株,36.0%)、骨科(20株,22.5%),主要分离自痰(41株,46.1%),伤口分泌物(16株,18%),对万古霉素、替考拉宁、奎奴普丁/达福普丁、复方新诺明、左氧氟沙星、诺氟沙星具有较高敏感性,MRSA对常用抗菌药物耐药率高于甲氧西林敏感金黄色葡萄球菌。共有32株MRSA检出bla_mecA基因,检出率为97%。结论 MRSA耐药情况较为严峻,临床科室应根据微生物培养报告合理使用抗菌药物。bla_mecA基因在MRSA检出较高,是MRSA主要的耐药机制。

Objective To analyze clinical distribution of Staphylococcus aureus infections from 7 hospitals in Zhongshan city, as well as to provide basis of empirical treatment and molecular biology for Staphylococcus aureus infections. Methods Staphylococcus aureus were collected from January 2015 to June 2015 in Zhongshan city, and then the strains were identified and tested antibiotic susceptibility by using ATB semiautomatic analyzer(Merieux). Resistance gene of methicillin-resistant Staphylococcus aureus(MRSA) was detected by polymerase chain reaction. Results 89 strains of Staphylococcus aureus were isolated from 7 hospitals and with prevalence of 33 strains of MRSA. Of all strains, 32(36.0%) were isolated from respiratory medicine and 20(22.5%) from orthopedics. 41(46.1%) strains of Staphylococcus aureus were isolated from sputum and 16(18.0%) from wound secretion. 89 strains of Staphylococcus aureus had highly susceptibility to vancomycin, teicoplanin, quinupristin/dalfopristin, cotrimoxazole, levofloxacin, norfloxacin. Resistance rates to commonly used antimicrobial drugs of MRSA were significantly higher than methicillin-sensitive. A total of 32 MRSA were detected carrying bla_mecA gene with the detection rate of 97%. Conclusion Clinical departments should be based on microbial culture report for rational use of antibiotics because of MRSA with more serious drug resistance. The gene of bla_mecA is the main mechanism of resistance for MRSA.

目的 了解2014年广州地区儿童专科医院的病原菌分布及耐药情况与全国细菌耐药监测网(CARSS)公布数据的异同点,并提出相关用药建议,为儿童临床合理应用抗生素提供科学依据。方法 将2014年本中心儿童院区检测的儿童细菌耐药数据与同期国家卫生计生委合理用药专家委员颁布的CARSS数据进行比较。结果 儿童医院与CARSS数据比较,革兰阳性菌比例较高(49.8% vs 28.5%),革兰阴性菌比例较低(50.2% vs 71.5%);肺炎链球菌、化脓性链球菌及流感嗜血杆菌检出率较高;耐药率明显升高的是肺炎链球菌对青霉素耐药率(33.2% vs 4.3％),耐药率明显降低的是鲍曼不动杆菌对碳青霉烯类耐药率(10.3% vs 57.0％),大肠埃希菌对喹诺酮类耐药率(27.6% vs 54.3％)。结论 广州地区儿童病原菌分布及耐药情况与CARSS数据比较有一定差异,特别是儿童主要致病菌肺炎链球菌对青霉素耐药的形势严峻,经验性抗感染治疗时需考虑本地及儿童的病原菌特殊性。