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Artificial lung

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https://www.readbyqxmd.com/read/28820423/-risk-factors-and-special-aspects-forgenital-tuberculosis-diagnostics
#1
G Lortkipanidze, N Kintraia, K Vacharadze, F Tsaava
Was examined 453 women, who applied to National Center for Tuberculosis and Lung Diseases for genital tuberculosis diagnostics. GTB was detected in 289 cases, in 164 cases GTB results was negative (control group). In 10 cases GTB was combined with pulmonary tuberculosis (OR-1,13). Risk factors are previous diseases of female reproductive organs- intracellular infection (OR-1,08), sexually transmitted diseases (OR-1,25), nonspecific inflammatory diseases (OR-1,009), interruption of pregnancy (OR-1,26), artificial abortions (OR-1,11), the most specific signs of Genital Tuberculosis is a pain in the stomach area (P-0,023), dysmenorrhoea (P-0,00001), intestinal obstruction (P-0,0006), heat (P-0,00001), liquid presence in posterior vault (P-0,007), hydrosalpinx (P-0,00001), Fallopian tubes deformation (P-0,000003), oophoritic cyst (P-0,067), adhesive process in small pelvis (P-0,0006)...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28818093/case-report-value-of-gene-expression-profiling-in-the-diagnosis-of-atypical-neuroblastoma
#2
Anne C Harttrampf, Qingrong Chen, Eva Jüttner, Julia Geiger, Gordon Vansant, Javed Khan, Udo Kontny
BACKGROUND: Nephroblastoma and neuroblastoma belong to the most common abdominal malignancies in childhood. Similarities in the initial presentation may provide difficulties in distinguishing between these two entities, especially if unusual variations to prevalent patterns of disease manifestation occur. Because of the risk of tumor rupture, European protocols do not require biopsy for diagnosis, which leads to misdiagnosis in some cases. CASE PRESENTATION: We report on a 4½-year-old girl with a renal tumor displaying radiological and laboratory characteristics supporting the diagnosis of nephroblastoma...
August 17, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28813621/improvement-of-an-in-vitro-model-to-assess-delivered-dose-and-particle-size-for-a-vibrating-mesh-nebulizer-during-mechanical-ventilation
#3
Nani Kadrichu, Derek Daniher
BACKGROUND: In an in vitro model of mechanical ventilation with gravity-dependent filter position we observed artificially high delivered doses resulting from liquid droplet collection and precipitation of aerosolized drug. We sequentially modified the model to obtain accurate reproducible measurements of delivered dose and particle size at endotracheal tube exit. METHODS: Stepwise changes in the model included (1) altering the endotracheal tube position to a gravity-independent position, (2) adding fluid traps, (3) humidifying air near the test lung, and (4) simplifying test lung and filters...
August 16, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28798849/a-small-scale-rolled-membrane-microfluidic-artificial-lung-designed-towards-future-large-area-manufacturing
#4
A J Thompson, L H Marks, M J Goudie, A Rojas-Pena, H Handa, J A Potkay
Artificial lungs have been used in the clinic for multiple decades to supplement patient pulmonary function. Recently, small-scale microfluidic artificial lungs (μAL) have been demonstrated with large surface area to blood volume ratios, biomimetic blood flow paths, and pressure drops compatible with pumpless operation. Initial small-scale microfluidic devices with blood flow rates in the μl/min to ml/min range have exhibited excellent gas transfer efficiencies; however, current manufacturing techniques may not be suitable for scaling up to human applications...
March 2017: Biomicrofluidics
https://www.readbyqxmd.com/read/28770339/evaluating-vertebral-artery-dominancy-before-t4-lung-cancer-surgery-requiring-subclavian-artery-reconstruction
#5
Yasuo Sekine, Yukio Saitoh, Mitsuru Yoshino, Eitetsu Koh, Atsushi Hata, Terunaga Inage, Hidemi Suzuki, Ichiro Yoshino
PURPOSES: To evaluate vertebral artery (VA) dominancy and the risk of brain infarction in T4 lung cancer patients with tumor invasion into the subclavian artery. METHODS: We reconstructed the subclavian artery in 10 patients with T4 non-small cell lung cancer. The histological stages were IIIA in eight patients and IIIB in two patients. We evaluated the VA dominancy by performing a four-vessel study preoperatively and investigated the relationship between the methods of VA treatment and postoperative brain complications, retrospectively...
August 2, 2017: Surgery Today
https://www.readbyqxmd.com/read/28763898/-effect-of-single-lumen-endobronchial-tube-and-double-lumen-endobronchial-tube-on-ventilation-and-lung-injury-in-patients-with-esophageal-cancer-undergoing-combined-thoracoscopic-and-laparoscopic-esophagectomy
#6
Y L Sun, Y Bai, T K Li, S G Lü, L Wang, X H Lu
Objective: To investigate the effect of the single lumen endobronchial tube and the double lumen endobronchial tube on ventilation and lung injury in patients with esophageal cancer undergoing combined thoracoscopic and laparoscopic esophagectomy. Methods: Sixty patients with esophageal cancer undergoing combined thoracoscopic and laparoscopic esophagectomy were divided into single lumen endobronchial tube group (D group, n=30) and double lumen endobronchial tube group (S, n=30) according to the random number table...
July 25, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28760550/the-role-of-c-ebp%C3%AE-phosphorylation-in-modulating-membrane-phospholipids-repairing-in-lps-induced-human-lung-bronchial-epithelial-cells
#7
Shiyu Shu, Yan Xu, Ling Xie, Yufang Ouyang
Acute lung injury/acute respiratory distress syndrome (ALI/ARDS) is a common critical emergency with high mortality in clinical practice. The key mechanism of ALI/ARDS is that the excessive inflammatory response damages the integrity of alveolar and bronchial cell membrane and thus affects their basic function. Phospholipids are the main component of cell membranes. Phospholipase A2 (PLA2), which catalyzes the cleavage of membrane phospholipids, is the most important inflammatory mediator of ALI. However, clara cell secretory protein 1 (CCSP1), an endogenous PLA2 inhibitor can increase the self-defense of membrane phospholipids...
July 28, 2017: Gene
https://www.readbyqxmd.com/read/28747842/combined-application-of-extracorporeal-membrane-oxygenation-and-an-artificial-pacemaker-in-fulminant-myocarditis-in-a-child
#8
Sheng Ye, Lvchan Zhu, Botao Ning, Chenmei Zhang
Fulminant myocarditis is severe and aggressive, but it is self-limited and usually has a favorable prognosis if the patients can survive the acute phase. When drug treatment is not effective, extracorporeal membrane oxygenation technology should be applied to support cardiopulmonary function. Extracorporeal membrane oxygenation can simultaneously support function of the left ventricle, right ventricle, and lungs, and provide stable blood circulation for patients with heart and respiratory failure, which allows sufficient time for the cardiopulmonary system to recover...
June 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28739724/therapeutic-role-of-mir-140-5p-for-the-treatment-of-non-small-cell-lung-cancer
#9
Valentina Flamini, Wen G Jiang, Yuxin Cui
BACKGROUND/AIM: Lung cancer is the second most common cancer in both men and women, after prostate and breast cancer, respectively. There are two main types of primary lung cancer, non-small cell lung cancer (NSCLC), which accounts for approximately 85-90% of all lung cancer cases, and small cell lung cancer (SCLC), which accounts for the other 10-15% of lung cancers. MiRNAs are small molecules that post-transcriptionally regulate many genes and contribute to many disease aetiologies, including tumours...
August 2017: Anticancer Research
https://www.readbyqxmd.com/read/28732213/comparison-of-blood-collection-tubes-from-three-different-manufacturers-for-the-collection-of-cell-free-dna-for-liquid-biopsy-mutation-testing
#10
Christina Alidousty, Danielle Brandes, Carina Heydt, Svenja Wagener, Maike Wittersheim, Stephan Christian Schäfer, Barbara Holz, Sabine Merkelbach-Bruse, Reinhard Büttner, Jana Fassunke, Anne Maria Schultheis
The improvement in sensitive techniques has allowed the detection of tumor-specific aberrations in circulating tumor (ct) DNA. Amplification-refractory mutation system PCR has been used for the analysis of ctDNA to detect resistance-causing mutations in the epidermal growth factor receptor gene (eg, EGFR T790M) in lung cancer patients. So far, Streck tubes have been widely used as standard blood collection tubes. Here, we compared blood collection tubes manufactured by Streck with tubes from Roche and Qiagen regarding their utility in stabilizing ctDNA in plasma samples...
July 18, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28723112/surfen-assembled-graphene-oxide-for-fluorescence-turn-on-detection-of-sulfated-glycosaminoglycans-in-biological-matrix
#11
Yen-Ting Wang, Wei-Lung Tseng
Sulfated glycosaminoglycans (GAGs) not only serve as a biomarker for mucopolysaccharidoses disease but also participate in various biological processes, such as blood clot medication (heparin) and signal transduction (heparan sulfate). However, few fluorescent sensors, such as 1,9-dimethylmethylene blue, have been developed for the detection of sulfated GAGs in the real world. Herein, we fabricated a surfen/few-layer graphene oxide (FLGO) nanocomplex for sensing sulfated GAGs in biological fluids. Surfen molecules are self-assembled onto the surface of FLGO through electrostatic attraction, and their fluorescence was then quenched by the creation of the FLGO-surfen complex (static quenching) and partially combined with the energy transfer from surfen to FLGO (dynamic quenching)...
June 23, 2017: ACS Sensors
https://www.readbyqxmd.com/read/28719441/fourteen-day-in-vivo-testing-of-a-compliant-thoracic-artificial-lung
#12
David J Skoog, Joshua R Pohlmann, David S Demos, Christopher N Scipione, Amit Iyengar, Rebecca E Schewe, Ahmed B Suhaib, Kelly L Koch, Keith E Cook
The compliant thoracic artificial lung (cTAL) has been studied in acute in vivo and in vitro experiments. The cTAL's long-term function and potential use as a bridge to lung transplantation are assessed presently. The cTAL without anticoagulant coatings was attached to sheep (n = 5) via the pulmonary artery and left atrium for 14 days. Systemic heparin anticoagulation was used. Compliant thoracic artificial lung resistance, cTAL gas exchange, hematologic parameters, and organ function were recorded. Two sheep were euthanized for nondevice-related issues...
July 14, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28714884/design-and-implementation-of-a-smart-home-system-using-multisensor-data-fusion-technology
#13
Yu-Liang Hsu, Po-Huan Chou, Hsing-Cheng Chang, Shyan-Lung Lin, Shih-Chin Yang, Heng-Yi Su, Chih-Chien Chang, Yuan-Sheng Cheng, Yu-Chen Kuo
This paper aims to develop a multisensor data fusion technology-based smart home system by integrating wearable intelligent technology, artificial intelligence, and sensor fusion technology. We have developed the following three systems to create an intelligent smart home environment: (1) a wearable motion sensing device to be placed on residents' wrists and its corresponding 3D gesture recognition algorithm to implement a convenient automated household appliance control system; (2) a wearable motion sensing device mounted on a resident's feet and its indoor positioning algorithm to realize an effective indoor pedestrian navigation system for smart energy management; (3) a multisensor circuit module and an intelligent fire detection and alarm algorithm to realize a home safety and fire detection system...
July 15, 2017: Sensors
https://www.readbyqxmd.com/read/28705307/a-new-method-for-enhanced-expectoration-of-sputum-by-vibratory-stimulation-of-the-cervical-trachea
#14
Mitsuhiro Kamimura, Nobuhisa Kameyama, Chie Homma, Tatsuya Ibe, Shinjiro Takeoka, Atsuto Mouri, Yoichiro Hamamoto
BACKGROUND: Expectoration of sputum can be difficult for patients with respiratory conditions such as chronic obstructive pulmonary disease, chronic bronchitis, or bronchiectasis because of the effects of decreased pulmonary function, respiratory muscle fatigue, altered sputum properties, and impaired ciliary function. We developed a new method for the vibratory stimulation of the cervical trachea and this study aimed to compare it with the Acapella (a current oscillation device) method...
July 2017: Respiratory Investigation
https://www.readbyqxmd.com/read/28701178/the-future-of-mechanical-ventilation-lessons-from-the-present-and-the-past
#15
REVIEW
Luciano Gattinoni, John J Marini, Francesca Collino, Giorgia Maiolo, Francesca Rapetti, Tommaso Tonetti, Francesco Vasques, Michael Quintel
The adverse effects of mechanical ventilation in acute respiratory distress syndrome (ARDS) arise from two main causes: unphysiological increases of transpulmonary pressure and unphysiological increases/decreases of pleural pressure during positive or negative pressure ventilation. The transpulmonary pressure-related side effects primarily account for ventilator-induced lung injury (VILI) while the pleural pressure-related side effects primarily account for hemodynamic alterations. The changes of transpulmonary pressure and pleural pressure resulting from a given applied driving pressure depend on the relative elastances of the lung and chest wall...
July 12, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28685333/chrysotile-and-rock-wool-fibers-induce-chromosome-aberrations-and-dna-damage-in-v79-lung-fibroblast-cells
#16
Yan Cui, Ji Ma, Wei Ye, Zhixia Han, Faqin Dong, Jianjun Deng, Qingbi Zhang
According to global estimates, at least 107,000 people die each year from asbestos-related lung cancer, mesothelioma, and asbestosis resulting from occupational exposure. Chrysotile accounts for approximately 90% of asbestos used worldwide. Artificial substitutes can also be cytotoxic to the same degree as chrysotile. But only a few researchers focused on their genetic effects and mutagenicity information which is useful in evaluating the carcinogenicity of chemicals. In this study, chrysotile from Mangnai, Qinghai, China, and an artificial substitute, rock wool fiber were prepared as suspensions and were tested at concentrations of 50, 100, and 200 μg/ml in V79 lung fibroblasts...
July 7, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28659880/alkyl-protocatechuate-loaded-nanostructured-lipid-systems-as-a-treatment-strategy-for-paracoccidioides-brasiliensis-and-paracoccidioides-lutzii-in-vitro
#17
Kaila P Medina-Alarcón, Junya L Singulani, Aline R Voltan, Janaina C O Sardi, Maicon S Petrônio, Mariana B Santos, Carlos R Polaquini, Luis O Regasini, Vanderlan S Bolzani, Dulce H S da Silva, Marlus Chorilli, Maria J S Mendes-Giannini, Ana M Fusco-Almeida
Dodecyl protocatechuate (dodecyl) is a derivative of protocatechuic acid (3,4-dihydroxybenzoic acid) that possesses anti-oxidant and antifungal properties. Nanostructured lipid systems (NLS) can potentiate the action of many antifungal agents, reducing the required dose and side effects by improving their activity. This work aimed to evaluate dodecyl protocatechuate loaded into a NLS (NLS+dodecyl) as a strategy for the treatment of Paracoccidioides brasiliensis and P. lutzii in vitro. Antifungal activity against P...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28658585/transport-and-flow-characteristics-of-an-oscillating-cylindrical-fiber-for-total-artificial-lung-application
#18
Adnan Qamar, Joseph L Bull
Mass transport and fluid dynamics characteristics in the vicinity of an oscillating cylindrical fiber with an imposed pulsatile inflow condition are computationally investigated in the present study. The work is motivated by a recently proposed design modification to the Total Artificial Lung (TAL) device, which is expected to provide better gas exchange. Navier-Stokes computations, coupled with convection-diffusion equation are performed to assess flow dynamics and mass transport behavior around the oscillating fiber...
August 2017: Computer Methods in Biomechanics and Biomedical Engineering
https://www.readbyqxmd.com/read/28657784/effect-of-emphysema-extent-on-serial-lung-function-in-patients-with-idiopathic-pulmonary-fibrosis
#19
Vincent Cottin, David M Hansell, Nicola Sverzellati, Derek Weycker, Katerina M Antoniou, Mark Atwood, Gerry Oster, Klaus-Uwe Kirchgaessler, Harold R Collard, Athol U Wells
Rationale Patients with idiopathic pulmonary fibrosis and emphysema may have artificially preserved lung volumes. Objectives This post-hoc analysis investigated the relationship between baseline emphysema and fibrosis extents, and pulmonary function changes over 48 weeks. Methods Data were pooled from two Phase III, randomized, double-blind, placebo-controlled trials of interferon γ-1b in idiopathic pulmonary fibrosis (GIPF-001 [NCT00047645]; GIPF-007 [NCT00075998]). Patients with Week 48 data, baseline high-resolution computed tomography images and forced expiratory volume in 1 second/forced vital capacity ratios <0...
June 28, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28657112/design-and-validation-of-a-ct-guided-robotic-system-for-lung-cancer-brachytherapy
#20
Huaisu Dou, Shan Jiang, Zhiyong Yang, Luqing Sun, Xiaodong Ma, Bin Huo
PURPOSE: Currently, lung brachytherapy in clinical setting is a complex procedure. Operation accuracy depends on accurate positioning of the template, however it is difficult to guarantee the positioning accuracy manually. Application of robotic assisted systems can simplify the procedure and improve the manual positioning accuracy. Therefore, a novel CT-guided robotic system was developed to assist the lung cancer brachytherapy. METHODS: A four degree-of-freedom (DOF) robot, controlled by a lung brachytherapy treatment planning system (TPS) software, was designed and manufactured to assist the template positioning...
June 28, 2017: Medical Physics
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