目的 分析肺动脉栓塞超声心动图表现,探讨超声心动图估测肺动脉高压对肺动脉栓塞的诊断意义。方法 回顾性分析确诊肺动脉栓塞患者的超声心动图影像表现,就超声诊断征象进行对比分析。结果 累及肺动脉主干、两侧肺动脉近端的肺动脉栓塞检出率92.31%。肺动脉栓塞患者肺动脉高压检出率达78.38%。结论 经胸超声心动图估测肺动脉收缩压具有重要的诊断提示意义。

Objective To analyze the doppler echocardiography in the cases of pulmonary embolism and evaluate the relationship between pulmonary hypertension and pulmonary embolism. Methods To retrospectively analyze the echocardiography findings of the pulmonary hypertension. The causes of disease were classification analyzed. Results The detection rate of the embolus in the main pulmonary trunk and proximal pulmonary arteries is 92.31%. The detection rate of the pulmonary hypertension is 78.38%. Conclusion The estimation of pulmonary artery pressure in the echocardiography is helpful to diagnosis.

目的 观察改良INP方案对肺腺癌伴有脑转移患者的临床疗效及毒副作用,并探讨该方案疗效与Ⅲ型β微管蛋白(β-tubulin-Ⅲ)在肺癌组织中表达水平的关系。方法 收集2010年4月—2013年1月广州医科大学附属第一医院胸外科收治的15例肺腺癌伴有脑转移患者的临床资料。所有患者均采用改良INP方案治疗,使用RECIST 1.0标准进行判定。结果 脑转移瘤取得CR 1例(1/15),PR 5例(5/15),SD 4例(4/15),PD 5例 (5/10),该方案对脑转移瘤的总缓解率(overall response rate,ORR)为40%,疾病控制率(disease control rate,DCR)达66.7%,毒副作用轻度可控;Ⅲ型β微管蛋白低表达对该方案的疗效有优于高表达的趋势。结论 肺腺癌伴有脑转移患者采用改良INP方案进行化疗,脑转移瘤临床疾病控制率较高,耐受性良好;肿瘤组织β-tubulin-Ⅲ表达水平可能与该方案的疗效相关。

Objective To investigate the efficacy and toxicity of chemotherapy of modified INP regimen in the treatment of adenocarcinoma with brain metastases. At the same time,to explore the relationship between expression of β-tubulin-Ⅲ in NSCLC biopsies and sensitivity to this modified INP regimen. Methods The clinical data of 15 adenocarcinoma with brain metastases patients who had been admitted to the first affiliated hospital of Guangzhou medical university from April 2010 to January 2013 were retrospectively analyzed. All patients received modified INP regimen.RECIST 1.0 was taken to know the result. Results For brain metastasis of the 15 patients, complete response (CR) and partial response(PR) were 1 and 5 patients, respectively. 4 patients were stable disease (SD) and progression disease(PD) in 5 patients. The overall response rate(ORR) was 40% and the disease control rate(DCR) was 66.7%. The toxicity was mild. Furthermore, we found NSCLC patients with low β-tubulin-Ⅲexpression had better ORR than those with high expression. Conclusion The modified INP regimen is effective and well-tolerable for brain metastases of adenocarcinoma. The β-tubulin-Ⅲ expression may be associated with the efficacy of this regimen.

目的 评价实时荧光定量PCR分析低氧性肺动脉高压大鼠肺动脉平滑肌基因表达时12个候选内参基因表达的稳定性,获得最适合的内参基因。方法 以低氧性肺动脉高压大鼠肺动脉平滑肌为研究对象,选择文献报道的常用12种内参基因为候选内参基因,利用geNorm和NormFinder程序分析实时荧光定量PCR数据,筛选出最适内参基因。结果 12个候选内参基因在低氧性肺动脉高压大鼠肺动脉平滑肌表达稳定性由强到弱顺序为:TBP>B2M>HPRT1>HMBS>RPL13a>18sRNA>PPIA>ACTB>GUSB>TFRC>GAPDH>PGK1,平均表达稳定度(M值)均<0.5,geNorm和NormFinder评估后推荐使用TBP和B2M一起作为该研究时的内参基因。结论 同时使用TBP和B2M是实时荧光定量PCR分析低氧性肺动脉高压大鼠肺动脉平滑肌基因表达的最适合内参基因,为低氧性肺动脉高压相关基因研究提供最优内参基因。

Objective To compare and select the suitable reference genes in real-time quantitative PCR analysis of rat pulmonary artery smooth muscle cells mRNA expression level of pulmonary hypertension. Methods To choose appropriate reference gene, the expression of twelve commonly use housekeeping genes were examined in rat pulmonary artery smooth muscle cells of hypoxia-induced pulmonary hypertension by using geNorm and NormFinder programs. Results The expression consistency of 12 genes was (from high to low): TBP>B2M>HPRT1>HMBS>RPL13a>18sRNA>PPIA>ACTB>GUSB>TFRC>GAPDH>PGK1. The average expression stability(M) values of them were low than 0.5. TBP and B2M reference genes were recommended to use in the same condition. Conclusion TBP and B2M reference genes were the most suitable combination of the reference genes for real-time quantitative PCR analysis in rat pulmonary artery smooth muscle cells of hypoxia-induced pulmonary hypertension.

神经元特异性烯醇化酶(neuron-specific enolase, NSE)是糖酵解途径中一种重要的同工酶;特异性位于神经元和神经内分泌细胞中。小细胞肺癌(small cell lung cancer,SCLC)细胞浆内含有神经内分泌颗粒,具有神经内分泌分化的特征,为恶性程度高的神经内分泌系统肿瘤。因此,NSE是SCLC诊断中最敏感的肿瘤标志物,在SCLC的临床诊断、治疗、预后均有重要应用价值,科学合理联合检测肿瘤标记物,将能为临床诊疗工作提供有力的帮助。

目的 观察阵发性房颤(PAF)环肺静脉电隔离术(CPVI术)治疗对左心房结构和功能的影响。方法 对63例PAF患者行CPVI术,超声心动图测定术前及术后3天、6个月时左心房内径(LAD)、左心房面积(LAA) 、左心房最大容积(LAVmax)、收缩期前容积(LAVp)、最小容积(LAVmin),测量二尖瓣血流频谱A峰流速(VA)、左心房被动射血分数(LAPEF)、主动射血分数(LAAEF)、扩张指数 (LaexpI)。结果 63例患者中54例于术后6个月时仍维持窦性心律,维持窦性心律者 LAD、LAA、LAVmax、LAVp、LAVmin对比术前减小 (P<0.05); VA、LAAEF术后3天降低(P<0.05),6个月对比术前无变化(P>0.05); LaexpI、LAPEF术后3天及6个月时均无改变(P>0.05)。结论 阵发性房颤环肺静脉电隔离术后左心房结构逆重构,早期辅泵功能下降,6个月时左心房功能未受影响。

目的 回顾性分析支气管肺泡细胞癌(bronchioloalveolar carcinoma,BAC)临床特点,提高早期BAC的确诊率,减少误诊。方法 对2013年—2014年间在我院确诊的BAC病例5例的临床资料进行回顾性分析。结果 5例患者中男4例,女1例,年龄在50～73岁之间,在社区医院均曾误诊为肺炎,所有患者均在我院经支气管镜肺活检后确诊为BAC。结论 BAC是一种较为特殊的肺癌,临床上症状无特异性,极易误诊为普通肺炎。由于BAC预后差,误诊后果严重,对初诊为普通肺炎的患者经常规抗感染治疗后临床症状及影像学表现改善不明显时,应及时进行各项检查、明确诊断,以便有效改善患者预后。

Objective To elevate the clinical diagnosis of BAC (bronchioloalveolar carcinoma) so as to reduce misdiagnosis by using retrospective analyses. Methods Retrospective analyses were used to study the five BAC patients, who were diagnosed in our hospital from 2013 to 2014. Results 4 of 5 male, and 1 female, age between 50 and 73, were diagnosed as pneumonia. All of them were made a definite diagnosis as BAC after performing transbronchial lung biopsy. Conclusion BAC is an exceptional lung adenocarcinoma and there is no specific clinic symptom. BAC was easily misdiagnosed as common lung pneumonia. There will be serious consequences after misdiagnosis of BAC due to its poor prognosis. Those patients who were misdiagnosed as common lung disease, but there was no obvious improvement after accepting long anti-infective therapy and there was negatively detection of pathogenic bacteria in them, are needed to perform all other clinical examination to clarify a diagnosis, and to further improve the prognosis of the patients.

目的 探讨莫西沙星结合抗结核药物治疗糖尿病合并肺结核患者的临床疗效分析。方法 将本组126例糖尿病合并肺结核患者分为对照组(n=63)和观察组(n=63);对照组给予降血糖治疗及抗结核药物降糖治疗,观察组在对照组治疗基础上服用莫西沙星;两组治疗均以3个月为一个疗程,2个疗程后统计疗效。结果 观察组总有效率(93.65%)高于对照组(76.19%),差异有统计学意义(P<0.05);观察组痰菌检测转阴率(94.59%)高于对照组(79.49%),差异有统计学意义(P<0.05);治疗过程中观察组与对照组出现不良反应情况相比较差异无统计学意义(P＞0.05)。结论 莫西沙星结合抗结核药物治疗糖尿病合并肺结核疗效显著,具有较强的杀菌作用。

Objective To investigate the clinical efficacy of moxifloxacin combining with antituberculosis drug in the treatment of diabetic patients with pulmonary tuberculosis. Methods A group of 126 patients of diabetes complicated with pulmonary tuberculosis were divided into control group (n=63) and observation group (n=63); the control group was given by hypoglycemic therapy and therapy of antituberculosis drug only, and the observation group was also given by moxifloxacin; two groups were treated for 3 months as a course.The clinical efficacy was evaluated after 2 courses. Results The total effective rate of observation group (93.65%) was significantly higher than that of the control group (80.95%), and the difference was statistically significant (P<0.05); the negative sputum rate of observation group (94.59%) was higher than that of the control group (79.49%), and the difference was statistically significant (P<0.05); there was no statistically significant difference between the observation group and the control group in adverse effects. Conclusion The curative effect of moxifloxacin combining with antituberculosis drug in the treatment of diabetes mellitus complicated with pulmonary tuberculosis was good, with strong bactericidal effect.

目的 分析总结12例原发性肺淋巴上皮瘤样癌(LELC)的临床病理特点。方法 回顾性分析12例肺LELC患者的临床病理资料。结果 12例肺LELC患者的组织学标本中,肿瘤细胞均明显表达HCK,原位杂交EBER阳性率为91.7%。全组中位生存期61.3个月,2年和5年生存率分别为84.6%和57.7%。结论 原发性肺LELC临床罕见,发病可能与EB病毒感染有关,经及时治疗有较好的预后。

Objective To investigate the pathological and clinical significance of 12 cases with primary Lymphoepithelioma-like carcinoma of the lung (LELC). Methods Retrospectively detectded and analyzed the clincalpathological feature of 12 cases of LELC of the lung. Results Histological study showed that tumor cells were significantly expressed HCK by immunohistochemistry staining and showed out 91.7% positive rate of EBER by situ hybridization. In this series, the median survival time was 61.3 months. The overall 2 and 5 year survival rates of the 12 cases were 84.6% and 57.7%. Conclusion Pulmonary LELC is very rare. It may be associated with Epstein-Barr virus infection, and has a batter prognosis after therapy.

目的 确定CD4⁺CD25⁺Treg调节性T细胞在重症肺炎克雷伯菌肺炎中的表达以及意义,探讨CD4⁺CD25⁺Treg在重症肺炎克雷伯菌肺炎的免疫抑制中的调控作用。方法 通过气管内滴注肺炎克雷伯菌菌液建立重症肺炎模型。采用流式细胞仪检测CD4⁺CD25⁺Treg细胞及酶联免疫吸附法(ELISA)等方法检测各种细胞因子。结果 重症肺炎克雷伯菌肺炎大鼠的脾脏和肺中CD4⁺CD25⁺Treg的数量增加。使用了CD25抗体(PC61)去除机体内源性的CD4⁺CD25⁺Treg,分别去除脾脏和肺的94%和90%的CD4⁺CD25⁺Treg。CD25抗体组在建模4 h,12 h及24 h后,肺部MPO及血清IL-1,IL-6,MIP-2较对照组高(P<0.05),肺和BLA比对照组高(P<0.05),CD25抗体组大鼠生存率比对照组低(P<0.05)。结论 内源的CD4⁺CD25⁺Treg对大鼠抑制重症肺炎克雷伯菌肺炎的过度免疫损害反应起到保护作用。

Objective To confirm the expression and meaning of the T regular cell in the severe Klebsiella pneumonia, and to evaluate the regular and control affect in the immunologic suppression of the severe Klebsiella pneumonia. Methods To build the severe pneumonia model by intratracheally inoculated with Klebsiella pneumoniae bacteria. To check sorts of inflammation factors by the methods of ELISA and flow cytometry. Results The quantity of the CD4⁺CD25⁺Treg in the splenic and lungs of the mice with severe Klebsiella pneumonia were increased. Anti-CD25Ab(PC61) was used to remove endogenousCD4⁺CD25⁺Treg. Anti-CD25 treatment remove 90% of CD4⁺CD25⁺Treg cells. The cytokine production(IL-1β,IL-6,MIP-2)in the anti-CD25-treated group were significantly increased. And it also increased significantly in the airway neutrophil infiltration, while the survival rate had been decreased. Conclusion Endogenous CD4⁺CD25⁺Treg can provide obvious protection effect to the restraining the over immunity damage of the severe Klebsiella pneumonia for the mice.

目的 观察有创-无创序贯通气治疗慢性阻塞性疾病(COPD)急性加重并呼吸衰竭的疗效。方法 选取2013年3月—2015年3月在兴宁市人民医院呼吸科收治的COPD急性加重并II型呼吸衰竭、需行机械通气的患者80例,随机进行有创-无创序贯通气治疗组A和单一有创通气治疗组B,两组除了机械通气的方式不同之外,其他的常规治疗均相同,主要观察两组患者进行相关机械通气方式前后的呼吸、循环及血气指标的变化情况以及进行机械通气的总时间和住院时间及呼吸机相关肺炎(VAP)的发生例数。结果 治疗组患者的血气、呼吸及循环内的各项生化指标改善程度均与对照组无统计学意义(P>0.05),同时治疗组患者的VAP的发生率,总的住院时间,进行机械通气的总时间少于对照组患者,有统计学意义(P<0.05)。结论 采用有创-无创序贯通气治疗慢性阻塞性疾病(COPD)急性加重并呼吸衰竭综合治疗效果要好于采用单一有创通气治疗,值得临床推广应用。