目的 以临床病例为研究对象,探讨年龄与性别对鼻咽癌自我病情延误的影响,寻找鼻咽癌科普宣教的重点靶标人群。方法 收集2015年4月—2015年12月广州医科大学附属肿瘤医院放疗科鼻咽癌病区收治的经活检病理确诊初治鼻咽癌患者62例(年龄28～77岁,中位年龄49岁),记录患者主诉症征出现至病理确诊鼻咽癌其相关症状的持续时间,采用t检验和Pearson相关分析探讨性别及年龄对鼻咽癌确诊前相关症征持续时间的影响。结果 62例患者确诊前均自我发现鼻咽癌相关症征,其中43例(69.4%)发现鼻咽原发灶相关症状,35例(56.5%)发现颈部淋巴肿大症状。Pearson相关分析显示,鼻咽癌确诊前颈部淋巴结肿大持续时间与年龄呈正相关(P＜0.05);t检验结果显示,男性患者鼻咽癌确诊前症状持续时间大于女性患者(P＜0.05)。结论 年龄较大和男性人群鼻咽癌自我病情延误较为严重,应该作为包括临床症状在内的鼻咽癌科普宣教的重点人群。

目的 探讨持续负压吸引在微通道经皮肾镜取石术治疗鹿角形肾结石的临床效果。方法 选取2016年1月—2017年12月在我院确诊鹿角形肾结石并行经皮肾镜取石术治疗的病例138例;根据通道大小、有无负压吸引装置分为观察组和对照组,其中观察组66例,采用20F微通道联合持续负压吸引,对照组72例,采用22F标准通道,无负压吸引。比较两组的术中生命体征变化、肾盂内压力以及术后发热的发生率。结果 观察组在术中血压和心率等生命体征变化、肾盂内压力以及术后发热的发生率均低于对照组,差异有统计学意义(P<0.05)。结论 微通道联合负压吸引行经皮肾镜取石术治疗鹿角形肾结石可以有效降低肾盂内压力,有效维持生命体征的稳定,减少术后发热的发生率,提高手术安全性。

Objective To explore the clinical effect of percutaneous nephrolithotomy for treatment of staghorn kidney stonesusingmicro-channel combined with vacuum suction. Methods A total of 138 patientsofstaghorn kidney stones with PCNL in our hospital from January 2016 to December 2017 were included and divided into experimental group and control group according to the size of the channel and the vacuum suction device. Y-type minimally invasive dilatation drainage kit of 20F micro-channelandvacuum suctionwere used in experimental group within 66 patients.A standard channel (22F diameter) without vacuum suction was used in control group within 72 patients. The changes in vital signs, intrapelvic pressureand incidence of postoperative fever were compared between experimental and control groups. Results The vital signs variety of blood pressure and heart rate, intrapelvic pressure and incidence of postoperative fever in experimental group were lower than those in control group(P<0.05). Conclusion Micro-channel combined with vacuum suctioninpercutaneous nephrolithotomy for treatment of staghorn kidney stones could effectively maintenance of stable vital signs, reduce intrapelvic pressure and the incidence ofpostoperative fever, and improve the safety of surgery.

目的 探讨粪菌移植(FMT)在两种肠镜下盲肠置管术的临床应用。方法 将2016年1月—2017年6月在我院通过肠镜下盲肠置管术进行粪菌移植的200例患者,随机分为A组和B组,各100例。A组采用直接肠镜置管法完成置管,B组采用二次肠镜置管法完成置管,对两组操作的置管成功率、置管时间、平均疼痛评分、并发症等情况进行对比。结果 与A组相比较,B组到达盲肠时间略长但无统计学意义(14.95min vs 15.26min,P=0.68)、疼痛评分低(5.7 vs 4.8,P<0.05)、更低的并发症发生率(6 % vs 23 %,P<0.05)。结论 在粪菌移植内镜下盲肠置管术患者中,采用通过采用二次肠镜置管法与直接肠镜法相比较完成置管手术时间无统计学差异,但置管成功率高、患者的痛苦小、风险低,值得临床推广。

Objective To investigate the clinical application of fecal microbiota transplantation (FMT) in two kinds of colonoscopic cecal catheterization. Methods From January 2016 to June 2017, 200 patients who took colonoscopic cecal catheterization for fecal microbiota transplantation in our hospital were randomly divided into group A and group B, with 100 patients in each group.Group A used direct colonoscopy catheterization to complete catheterization, group B was treated by the second colonoscopy catheterization. The success rate of catheterization, catheterization time, average pain score and complication were compared between the two groups. Results Compared with group A, the time to reach the cecum in group B was slightly longer but not statistically significant (14.95min vs 15.26min,P=0.68). It had lower pain score (5.7 vs 4.8, P<0.05), lower complication rate. Conclusion Among the patients with colonoscopic cecal catheterization for fecal microbiota transplantation, there was no significant difference in the time of catheterization between the second colonoscopy and the direct colonoscopy, but it has the high success rate of catheterization and low pain, low risk, worthy of clinical promotion.

目的 探讨MDS、MDS/AML及原发AML基因突变频谱的异同点及其临床意义。方法 选取98例MDS患者、32例MDS/AML患者及234例原发AML患者为研究对象,利用二代测序技术检测基因突变。结果 MDS组中突变率较高的基因突变为TET2(16.7%,16/96)、U2AF1(12.0%,6/50)、SF3B1(11.8%,9/76);MDS/AML组中突变率较高的基因突变为TP53(33.3%,2/6)、DNMT3A(30%,6/20)、IDH2(21.1%,4/19);原发AML组中突变率较高的基因突变为FLT3-ITD(18.0%,42/233)、NPM1(16.3%,38/233)、DNMT3A(14.9%,14/94)。DNMT3A(P=0.006)、IDH2(P=0.004)及NPM1(P=0.002)等基因突变在MDS与MDS/AML两组间的突变率有统计学差异;FLT3-ITD(P=0.001)、NPM1(P=0.002)、CEBPA(P=0.011)及IDH2(P=0.019)等基因突变在MDS与原发AML两组间的突变率有统计学差异;所有受检基因突变在MDS/AML与原发AML两组间的基因突变的突变率无统计学差异(P＞0.05)。结论 MDS、MDS/AML及原发AML基因突变的突变频谱具有相似性及异质性,从MDS到MDS/AML、原发AML基因突变的变化不仅影响疾病转归及预后而且可帮助鉴别MDS/AML和原发AML。

Objective To explore the similarities and differences of spectrum of gene mutations in patients with myelodysplastic syndrome, MDS/AML and de novo acute myeloid leukemia and their clinical significance. Methods 98 patients with MDS, 32 patients with MDS/AML, 234 patients with de novo AML were selected. Gene mutations were detected by second generation sequencing. Results The most frequent mutations in MDS were as follows:TET2(16.7%, 16/96), U2AF1(12.0%, 6/50), SF3B1(11.8%, 9/76); The most frequent mutations in MDS/AML were TP53(33.3%, 2/6), DNMT3A(30%, 6/20), IDH2 (21.1%, 4/19);The most frequent mutations in de novo AML were FLT3-ITD(18.0%, 42/233), NPM1(16.3%, 38/233), DNMT3A(14.9%, 14/94); DNMT3A(P=0.006),IDH2(P=0.004) and NPM1(P=0.002) were statistical difference between MDS and MDS/AML; FLT3-ITD(P=0.001),NPM1(P=0.002),CEBPA(P=0.011) and IDH2(P=0.019) were statistical difference between MDS and de novo AML;There were no siatistical significance (P>0.05) in the frequency of all detected gene mutations between MDS/AML and AML. Conclusion The spectrum of gene mutation of MDS, MDS/AML and primary AML have similarities and heterogeneity.The changes of gene mutations from MDS to MDS/AML and de novo AML not only affect disease outcome and prognosis, but also help to identify MDS/AML and de novo AML.

目的 不同通道下的经皮肾镜取石术肾盂压力监测治疗鹿角形肾结石的临床分析。方法 选取我院2016年1月–2017年12月收治的鹿角形肾结石患者120例,通过随机分组,分别采用16F、18F、20F、22F、24F 作为手术通道,在气管插管全麻下置入8/9.8F 输尿管镜行经皮肾镜气压弹道碎石取石术,行经皮肾镜取石术,术中通过监测输尿管导管的压力,即肾盂内压并记录。测压系统每秒钟采集一次数据并录入数据库。观察不同通道下肾盂内压力以及取石速度。结果 在24F通道下肾盂内压力最低,与其他通道组进行比较,差异有统计学意义（P<0.05）;肾盂内压力大于40 cmH₂O时在24F通道下取石速度最短,与其他通道组进行比较,差异有统计学意义（P<0.05）;24F通道与22F通道下取石速度最快,与其他通道组进行比较,差异有统计学意义（P<0.05）。结论 肾盂内压监测使经皮肾镜取石术更加安全和精确,值得临床进一步推广应用。

Objective To investigate the pyelolithic pressure monitoring in percutaneous nephrolithotomy of different channel in treatment of renal staghorn calculi. Methods 120 patients of staghorn renal calculi in our hospital were selected from January 2016 to December 2017. These patients were randomly divided into 5 groups according to the operation channel（16F,18F,20f,22F,24F）. During operation,renal pelvis,ureter catheter pressure and operation time were recorded. Results The lowest renal pelvis pressure could be found in the 24F channel and the difference was statistically significant（P<0.05）. The lowest operation time could be found in the condition of the renal pelvis pressure of more than 40cmH₂O and 24F channel（P<0.05）. Beside of this, the fastest stone-free rate could be found in 22F and 24F channel（P<0.05）. Conclusion Monitoring of renal pelvic pressure makes percutaneous nephroscopic surgery more accurate and safety. It is worthy of clinical application.

目的 了解中山市儿童社区获得性肺炎病原学特点及其与年龄、抗生素使用的相关性,为疾病诊断和抗生素合理使用提供参考依据。方法 对中山市妇幼保健院儿科住院部2016年1月—2016年4月收治的小儿社区获得性肺炎临床资料、入院前使用抗生素和病原学检测结果进行回顾性分析。结果 共有155例研究对象纳入研究,细菌检出95株,其中革兰氏阴性菌61株,革兰氏阳性菌34株。流感嗜血杆菌,金黄色葡萄球菌,肺炎链球菌,大肠埃希氏菌,副流感嗜血杆菌的占构成比前五位。支原体和衣原体现症感染率约7.7%～8.4%。RSV检出率达25.8%。年龄在3 a以上、入院前使用过抗生素者,革兰阳性菌检出率较低(P<0.05)。入院前使用过抗生素者,革兰阴性菌检出率较高,且使用4 d及以上者高于使用3 d及以下者(P<0.05)。结论 住院儿童CAP的治疗,应综合考虑病人的年龄、入院前的抗生素使用情况,结合当地CAP 的可能优势病原选择合适的治疗方案。

Objective To explore the etiological characteristics and factors of community-acquired pneumonia(CAP) in children in Zhongshan for providing reference for the diagnosis and rational use of antibiotics for CAP. Methods Retrospective analysis were applied on clinical data and etiology results of CAP in children admitted to the pediatric inpatient department of Maternal and Child Health Hospital in Zhongshan from January to April, 2016. Results 155 children were enrolled. The number of bacteria detected was 95, including 61 Gram-negative bacteria, 34 Gram-positive bacteria. Haemophilus influenzae, Staphylococcus aureus, Streptococcus pneumoniae, Escherichia coli, Haemophilus parainfluenzae accounted the top five. The recent infection rate of Mycoplasma and Chlamydia were from 7.7% to 8.4%. RSV detection rate was 25.8%.The Children who were over 3 years old, pre-use of antibiotics, associated with lower detection rate of Gram-positive bacteria (P<0.05). The Children who were the pre-use of antibiotics, associated with higher detection rate of Gram-negative bacteria, and the use of four days and more higher than three days or less(P<0.05). Conclusion For the treatment of CAP in children, the patient's age and pre-use history of antibiotics should be considered, combined with local common type of disease pathogens, to select the appropriate treatment.

目的 分析广州市离退休干部的体检结果,为疾病的预防和治疗提供依据。方法 以2015年在我院进行体检的离退休干部为对象,对其中有相同体检内容的3 841位的结果进行分析,探讨该人群中阳性体征检出率最高的前15种疾病,以及这些疾病在不同性别人群中的差异,并与2014年检出结果进行对比。结果 总体人群前15种阳性体征检出率疾病中,大部分疾病的检出率在不同性别人群有统计学差异。老年性白内障(总人群检出率67.56%)、高血压病(46.6%)、结节性甲状腺肿(44.18%)位居前三位;与2014年的检测结果相比,老年性白内障、高尿酸血症、胆囊结石这三种疾病的检出率有所下降,而结节性甲状腺肿、痔疮、慢性咽炎、高脂血症、胆囊炎这五种疾病的检出率有所上升(差异均有统计学意义,P<0.05)。结论 离退休人员性别差异罹患各种疾病的几率不同,男性更易罹患老年性白内障、高尿酸血症、牙周炎、牙龈炎、脂肪肝、糖尿病、胆囊炎。女性更易罹患结节性甲状腺肿、痔疮、慢性咽炎、高脂血症。定期健康体检后的进一步健康管理还相当薄弱,健康干预日益迫切需要。

Objective We analyzed the physical examination results of retired cadres,to acquaint the health status of the targeted population and provide the basis for the disease prevention and treatment. Methods Among the retired cadres who conducted healthy examination in the successive two years of 2014 and 2015, we selected 3841 cases of which examination items were the same in these two years. Based on their healthy examination results, we investigated the diseases of which detected rates of positive sign ranked in top 15, including the different appearances between different genders, and made comparisons with that of year 2014. Results Out of the top 15 diseases, senile cataract, hypertension and nodular goiter ranked in top 3. Compared with that of year 2014, a decrease of the detection rate could be seen in three diseases namely senile cataract, hyperuricemia and cholecystolithiasis, but an increase in five diseases namely nodular goiter, hemorrhoids, chronic pharyngitis, hyperlipidemia and cholecystitis. Conclusion Regular examination is an important way to acquaint the health status of retired cadres, and find pathogenesis risk factors timely. The healthy management however is still weak after physical examination.Thus it can be seen that healthy intervention has become increasingly urgent.

目的 探讨长期吸烟史对高危脑卒中患者口服阿司匹林二级预防效果的影响。方法 将2012年8月—2014年8月医院口服阿司匹林二级预防的高危脑卒中患者115例作为研究对象,根据有无吸烟史分为无吸烟史组(34例)和吸烟史组(81例),其中36例吸烟时间≥20 a(长期吸烟史组)、45例吸烟时间1～19 a(短期吸烟史组)。随访12个月,测定血小板颗粒膜蛋白(GMP-140)、D-二聚体(D-D)、纤维蛋白原(FIB)、组织型纤溶酶原激活物(t-PA)、血小板膜糖蛋白CD61、CD62p,记录1年阿司匹林抵抗和临床终点事件发生率。结果 长期吸烟史组治疗前后GMP-140、D-D、FIB、CD61、CD62p高于短期吸烟史组和无吸烟史组,t-PA低于短期吸烟史组和无吸烟史组,且短期吸烟史组和无吸烟史组组间比较,差异有统计学意义(P＜0.05);长期吸烟组阿司匹林抵抗发生率和临床终点事件发生率分别为33.33%、30.56%,高于无吸烟史组的8.82%、8.82%,差异有统计学意义(P＜0.05),其余组组间比较差异无统计学意义(P＞0.05)。结论 长期吸烟史会使脑卒中患者存在血栓前状态,增加阿司匹林抵抗和临床终点事件的发生几率。

Objective To explore effects of long-term smoking on secondary prevention for oral aspirin in high-risk stroke patients. Methods A total of 115 high-risk stroke patients who orally took aspirin for secondary prevention in our hospital from August 2012 to August 2014 were selected as the study subjects. According to smoking or not, they were divided into non smoking history group (34 cases) and smoking history group (81 cases). Among them, 36 cases whose smoking time was ≥ 20 years were included in the long-term smoking history group, and 45 cases whose smoking time was 1 to 19 years were included in the short-term smoking history group. The patients were followed up for 12 months. The platelet granule membrane protein (GMP-140), D-dimer (D-D), fibrinogen (FIB), tissue plasminogen activator (t-PA), platelet membrane glycoprotein CD61 and CD62p were determined. The incidence rates of 1-year aspirin resistance and clinical outcome events in the three groups were recorded. Results Before and after treatment, GMP-140, D-D, FIB, CD61 and CD62p in long-term smoking history group were higher than those in short-term smoking history group and non smoking history group while T-PA was lower, and there were significant differences between short-term smoking history group and non smoking history group (P<0.05). The incidence rates of aspirin resistance and clinical outcome events in long-term smoking history group (33.33%, 30.56%) were higher than those in non smoking history group (8.82%, 8.82%)(P<0.05), but there was no significant difference among other groups (P>0.05). Conclusion Long-term smoking history will cause prethrombotic state in stroke patients and increase the incidence rates of aspirin resistance and clinical outcome events.

目的 探讨代谢综合征(metabolic syndrome, MS)(指包括高血压,糖尿病,高脂血症和腹型肥胖的一组综合征)在中国南方老年病人的患病率、及其与心血管事件和痴呆关系。方法 本研究为一个中国南方老年人代谢综合征的横断面研究。我们采集了患者的病史、人口学和生化资料。对比生化资料、心血管事件、痴呆等疾病在MS组和非MS组中的差异,并使用Logistic回归分析来寻找MS的独立影响因子。结果 本研究共纳入206例患者。其中有92(44.66%)例患者符合代谢综合征的诊断标准。女性在MS组中35例(38.04%)明显高于在非MS组中28例(24.56%)。整体年龄(86.74± 6.10),在MS组(86.37±5.74)和非MS组(87.04±6.38)对比中无统计学意义。生化资料对比中,白细胞[(7.46±2.38) vs (6.46±2.35),P=0.003]和血肌酐[94.50(68.50, 129.33) vs 78.00(64.50, 99.75),P=0.004]在MS组中较高。Logistics单因素回归分析及多因素回顾分析提示白细胞、血肌酐和女性为MS的独立风险因子。心肌梗塞(35例,38.04%和心绞痛(28例, 24.56%)在MS组中明显高于非MS组中心肌梗塞(10例,8.77%)和心绞痛(39例,34.21%),两组比较有统计学意义,Logistics回归分析发现MS是心肌梗塞和心绞痛的独立影响因子;但是心衰和中风在两组对比中无统计学差别。痴呆(包括老年性痴呆和血管性痴呆)在MS组中明显低于非MS组:26例(28.26%)vs 50例(43.86%),提示MS可能对痴呆有预防作用。结论 MS在中国南方老年患者中普遍存在,女性、白细胞、血肌酐为MS的独立影响因子;MS是心肌梗塞和心绞痛的独立影响因子;MS中痴呆明显低于非MS组,可能对痴呆有预防保护性作用。

Objective To study the prevalence and correlation between the metabolic syndrome MS (including hypertension, diabetes, hyperlipidemia and obesity) with cardiovascular and dementia in the elderly people of south China. Methods This cross-sectional research studied metabolic syndrome of the elderly in south China. We collected the demographics and chemotic data and compared them in MS and non-MS group. And Logistic regression was used to analyze the independent factor of MS and the relationship between MS and the cardiovascular disease and dementia. Results This study included 206 patients and 92 (44.66%) of them were diagnosed as MS. 35 patients (38.04%) in MS group were female and 28 female cases (24.56%) in non-MS group. The mean age of the sample was (86.74±6.10) and the comparison between the MS group (86.37±5.74) and non-MS group (87.04±6.38) was not significantly different. White blood cell (WBC) (7.46±2.38 vs 6.46±2.35,P=0.003) and serum creatinine (Scr) was significantly [94.50(68.50,129.33) vs 78.00(64.50, 99.75),P=0.004]in MS group versus in non-MS group. Single factor and Multinomial logistic regression found WBC, serum creatinine and female gender were the independent risk factors of MS. Myocardial infarction (35, 38.04%) and angina (28, 24.56%) were significantly higher in MS group than that in non-MS group (10, 8.77%) and (39, 34.21%), respectively, with P<0.05. Logistic regression found MS was an independent risk factor of myocardial infarction and angina but not in heart failure and stroke. Dementia (including Alzheimer disease and vascular dementia) was found lower in MS group (26, 28.26%) than that in non-MS group (50, 43.86%), the difference was significant and this means MS could be protective for dementia. Conclusion MS is prevalent in the elderly of south China. Female gender, WBC and Scr were independent factors of MS; MS was the independent risk factor of myocardial infarction and angina; dementia was significantly lower in MS group, implying MS could be protective to dementia.

目的 探索长链非编码RNA LINC00672在肺癌组织中的表达及其与患者预后的关系。方法 采用实时荧光定量PCR技术检测LINC00672在75对肺癌组织和癌旁正常组织中的表达,分析其在癌组织中的表达水平与肺癌患者临床分期和预后的关联。结果 LINC00672在肺癌组织中的表达显著低于癌旁正常组织(P=0.026),LINC00672高表达与低表达相比能显著降低肺癌患者的死亡率(死亡风险比=0.46;95%置信区间=0.23~0.95;P=0.036),延长患者中位生存期(34个月 vs 18个月,P=0.027)。并且,LINC00672与肺癌预后的关联在低年龄组(<60 a)、吸烟者和非饮酒者中更为显著。进一步相乘交互作用分析显示LINCOO672与饮酒在肺癌死亡风险上具有显著的交互效应(P=0.049)。然而,LINC00672的表达水平在不同分期、T、N、M患者来源的肺癌组织中的表达无显著性差异。结论 LINC00672与肺癌发生发展存在关联,可用于预测肺癌患者的预后。

Objective To explore the expression status of long non-coding RNA LINC00672 in lung cancer tissues and its correlation with survival of lung cancer. Methods We applied the real-time PCR method to measure the expression level of LINC00672 in 53 pairs of lung cancer tissues and adjacent lung normal tissues, and analyzed the correlation between its expression and survival of lung cancer. Results LINC00672 was significantly down-regulated in lung cancer tissues than their adjacent lung normal tissues (P=0.026). Compared to those with low expression level of LINC00672, patients with high expression level of LINC00672 exerted a significant long median survival time than those with low expression level (34 vs 18 months, P=0.027). High LINC00672 expression also contributed to low mortality rate than low LINC00672 expression (hazard ratio=0.46, 95% confidence interval =0.23-0.95, P=0.036). Meanwhile, the correlation was more evident in those low age groups (< 60 years), smokers and non-drinkers. There was also a significant interaction between LINC00672 and drinking on affecting death risk of lung cancer. However, no significant association was observed between LINC00672 expression and clinical stages as well as T, N, M status. Conclusion LINC00672 is correlated with development of lung cancer, which may be a valuable biomarker to predict lung cancer prognosis.