右肺下叶段支气管CT显示的应用解剖

目的：为给ＣＴ对右肺下叶作斜位扫描提供倾斜角度及对诊断提供参考数据。方法：以３０例标本制成支气管树和１３例ＣＴ影像观测叶、段支气管内径、段支气管与叶支气管的夹角。结果：叶支气管内径５．０±０．２ｍｍ。相邻底段支气管内径无显著差别。ＢⅥ、ＢⅦ、ＢⅧ、ＢⅨ和ＢⅩ的夹角分别为８８．１°±１．７°、１８．２°±３．５°、２０．２°±２．８°、１５．８°±２．６°和１６．７°±３．６°。结论：叶段支气管内径、管壁厚度可为ＣＴ诊断增加一个以数据为依据确定管腔狭窄或管壁增厚的方法以提高中心型肺癌的正确诊断率，依段支气管的倾斜角度将ＣＴ机架和体位作相应的倾斜和偏移使扫描层面与段支气管垂直可提高其ＣＴ显示率。     

The acute remedy of malignant central airway obstruction

Objective： To explore the palliative methods to patients with central airway obstruction due to advanced malignancies. Methods： Twenty-seven patients with carcinous airway obstruction and respiratory distress were emergency remedied, including 12 cases with atelectasis and 23 with pulmonary infection. Soft cryoablated probe of CO2 and/or reticulate endobronchial stent with filmed titanium alloy were placed to the neoplasm following by bronchofibroscope. Results： Totally there were 21 patients achieved completely remission, including airway obstruction, respiratory distress and pulmonary infection remission, and 3 cases got partial remission. Meanwhile there were 3 cases died, in which one was happened during the period of endobronchial stent making, another one with heavy airway obstruction died due to asphyxia 24 h after the operation of bronchofibroscope examination, and the last one with knob invaded died because of hemoptysis and asthema secondarily 36 h after stent placed. Conclusion： The emergency remedy using soft cryoablated probe of CO2 and/or reticulate endobronchial stent with filmed titanium alloy placed to the neoplasm following by bronchofibroscope to patients with malignant central airway obstruction was a effective salvage method and could prolong patients＇ lifespan for more subsequent therapeutic opportunities.     

CT仿真支气管内窥镜的临床应用评价

目的:探讨CT仿真支气管内窥镜(CTVB)的临床应用价值及限度。方法:用螺旋CT对50例患者行容积扫描,通过计算机后处理功能,进行气管、支气管内表面成像。结果:CTVB对12级支气管显示率100％,3级支气管显示率79.8％,4级支气管显示率36.3％,5级支气管显示率9.5％。CTVB对腔内病变敏感性较高,但特异性较低。结论:CTVB是一种无创的检查方法,是纤维支气管镜的补充检查手段,具有一定的应用潜力,值得临床上进一步推广应用。     

Cost and Mortality Analysis of an Intermediate Respiratory Care Unit. Is It Really Efficient and Safe?

IntroductionHistorically, it has been assumed that Intermediate Respiratory Care Units (IRCU) were efficient, because they saved costs by reducing the number of admissions to intensive care units (ICU), and effective, because they specialized in respiratory diseases.MethodsThe number of IRCU admissions and mortality rate, historically and in 2016, were evaluated. For 2016, the grouped Related Diagnostic Groups (DRGs) were also described, and the savings achieved under all budgetary headings by avoiding UCI stays were calculated. A multivariate analysis was performed to associate costs with mean weights and complexity, and multiple logistic regression was performed on all patients admitted from 2004 to 2017 to describe the variables associated with mortality in our unit.ResultsAn IRCU generates savings of €500,000/year by reducing length of ICU stay. Analysis of the 2016 cohort shows that costs correlate with mean weight and mortality, and consequently complexity. The multivariate logistic regression analysis of the 2004–2017 cohort found respiratory frequency, leukopenia, anemia, hyperkalemia, and acidosis to be the variables best associated with mortality. The area under the curve for the logistic model was 0.75.ConclusionThe IRCU analyzed in our study was efficient in terms of ‘avoided costs’ and savings associated with complexity. Our results suggest that IRCUs have a lower mortality rate than other similar units, and are therefore a safe environment for patients.     

推拿、中频电疗法治疗颈肩痛78例

颈肩病的发生率较高,给患者带来很大痛苦,严重影响其工作和生活。作者自2005年11月至2006年4月收治经骨科排除骨结核、骨肿瘤及骨折的颈肩病患者,采用推拿和中频电疗法治疗,取得了较好疗效。     

Accessory cardiac bronchus and tracheal bronchus anomalies: CT-bronchoscopy and CT-bronchography findings

Most common developmental anomalies of bronchial tree include accessory cardiac bronchus (ACB) and tracheal bronchus (TB). Minor bronchial anomalies include variants of TB, displaced segmental bronchi, and bronchial agenesis. We present CT-bronchoscopy and CT-bronchography findings of three cases with either ACB or TB. Recognition of these anomalies is important, as associated clinical complications, including recurrent episodes of infection, hemoptysis, and perhaps malignancies may be anticipated in a small percentage of patients.     

Granular cell tumor arising metachronously in the bronchus and esophagus

We present a case of granular cell tumor (GCT) occurring in the esophagus 7 years after operation for bronchial GCT. A 59-year-old Japanese man complained of epigastralgia, and endoscopic examination of the upper digestive tract disclosed a submucosal tumor in the lower esophagus. Histological examination of the endoscopic mucosal resection of the esophageal tumor showed a proliferation of neoplastic cells with an eosinophilic and granular cytoplasm. The cytoplasm of the neoplastic cells was histochemically positive for PAS stain and immunohistochemically positive for S-100. This tumor did not fulfill any of the diagnostic criteria for malignancy at either the macroscopic or microscopic level. I believe that this is the first case of GCT occurring metachronously in the respiratory and digestive tracts. Clinicians and pathologists should bear in mind that GCT may arise metachronously in the respiratory and digestive tracts.     

免疫应答类型的重新分类

过渡性免疫应答由原属固有免疫应答的原始B1细胞、γδT细胞和NKT细胞所组成.其中原始B1细胞承担过渡性免疫应答的体液免疫,γδT细胞和NKT细胞承担过渡性免疫应答的细胞免疫,主要识别和排除TI抗原.固有免疫应答的细胞包括吞噬细胞、树突状细胞、NK细胞等,体液免疫组包括补体、急性期蛋白、溶菌酶等,其主要作用是非特异性地清除或递呈抗原.适应性免疫应答的细胞由B2细胞和αβT细胞组成,B2细胞承担适应性体液免疫应答,αβT细胞承担适应性细胞免疫应答,主要识别和排除胸腺依赖性抗原(TD).免疫应答分为3种类型是对免疫系统进化的客观阐述,符合物种进化的基本规律,准确反映了免疫功能的发生和发展,对完善免疫学基础理论以及指导临床免疫学研究具有重要的意义.