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gold standard for lung cancer

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https://www.readbyqxmd.com/read/28286791/gastric-metastases-from-lung-adenocarcinoma-causing-gastrointestinal-bleeding
#1
Ayman Qasrawi, Mouhanna Abu Ghanimeh, Sakher Albadarin, Osama Yousef
Metastases to the stomach are rare. They are commonly asymptomatic, and the diagnosis is usually established during autopsy. We present a patient known to have stage IV lung adenocarcinoma who presented with melena and shock. Endoscopy revealed multiple gastric nodules, which were proved to be metastatic deposits from her lung cancer. The possibility of gastric metastases should be kept in mind in patients presenting with gastrointestinal bleeding. Endoscopy and biopsy remain the gold standard for diagnostic testing in such patients...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28285684/dual-occurrence-of-alk-g1202r-solvent-front-mutation-and-small-cell-lung-cancer-transformation-as-resistance-mechanisms-to-second-generation-alk-inhibitors-without-prior-exposure-to-crizotinib-pitfall-of-solely-relying-on-liquid-re-biopsy
#2
Sai-Hong Ignatius Ou, Thomas K Lee, Lauren Young, Maria Y Fernandez-Rocha, Dean Pavlick, Alexa B Schrock, Viola W Zhu, Jeffrey Milliken, Siraj M Ali, Barbara J Gitlitz
Development of the acquired ALK G1202R solvent front mutation and small cell lung cancer (SCLC) transformation have both been independently reported as resistance mechanisms to ALK inhibitors in ALK-rearranged (ALK+) non-small cell lung cancer (NSCLC) patients but have not been reported in the same patient. Here we report an ALK+ NSCLC patient who had disease progression after ceritinib and then alectinib where an ALK G1202R mutation was detected on circulating tumor (ct) DNA prior to enrollment onto a trial of another next generation ALK inhibitor, lorlatinib...
April 2017: Lung Cancer: Journal of the International Association for the Study of Lung Cancer
https://www.readbyqxmd.com/read/28241763/identifying-incident-colorectal-and-lung-cancer-cases-in-health-service-utilisation-databases-in-australia-a-validation-study
#3
David Goldsbury, Marianne Weber, Sarsha Yap, Emily Banks, Dianne L O'Connell, Karen Canfell
BACKGROUND: Data from centralised, population-based statutory cancer registries are generally considered the 'gold standard' for confirming incident cases of cancer. When these are not available, or more current information is needed, hospital or other routinely collected population-level data may be feasible alternative sources. We aimed to determine the validity of various methods using routinely collected administrative health data for ascertaining incident cases of colorectal or lung cancer in participants from the 45 and Up Study in New South Wales (NSW), Australia...
February 27, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28228226/-progress-of-pd-1-pd-l1-inhibitors-in-non-small-cell-lung-cancer
#4
Zhansheng Jiang, Zhanyu Pan, Xiubao Ren
Pembrolizumab, an inhibitor target programmed death 1 (PD-1), was approved into the first line therapy in advanced non-small cell lung cancer (NSCLC). It was a milestone that immune checkpoints drugs have played an important role in the treatment system of NSCLC. The results of clinical trials revealed the superiority of PD-1/programmed death ligand 1 (PD-L1) inhibitors compared with chemotherapy in first-line, second-line and multidrug resistance phase therapy. Objective response rate (ORR) was up to 80% with pembrolizumab plus chemotherapy, and progression-free survival (PFS) with single pembrolizumab in first line was nearly 1 year (10...
February 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28195686/diagnosis-of-anaplastic-lymphoma-kinase-rearrangement-in-cytological-samples-through-a-fluorescence-in-situ-hybridization-based-assay-cytological-smears-versus-cell-blocks
#5
Federica Zito Marino, Giulio Rossi, Matteo Brunelli, Maria Gabriella Malzone, Giuseppina Liguori, Giuseppe Bogina, Alessandro Morabito, Gaetano Rocco, Renato Franco, Gerardo Botti
Anaplastic lymphoma kinase (ALK) status analysis of lung cytological specimens should be successfully encouraged in routine practice because biopsy specimens are not always available. To date, the US Food and Drug Administration has approved both fluorescence in situ hybridization (FISH) and immunohistochemistry (IHC) as diagnostic tests for identifying ALK-positive patients eligible for treatment with crizotinib. Although ALK IHC is an optimal diagnostic tool, FISH becomes mandatory in equivocal cases. ALK FISH of paraffin-embedded tissue material is still the gold standard, whereas the cytological specimen assay has not yet been completely standardized...
February 14, 2017: Cancer
https://www.readbyqxmd.com/read/28181564/multiplexed-transcriptome-analysis-to-detect-alk-ros1-and-ret-rearrangements-in-lung-cancer
#6
Toni-Maree Rogers, Gisela Mir Arnau, Georgina L Ryland, Stephen Huang, Maruja E Lira, Yvette Emmanuel, Omar D Perez, Darryl Irwin, Andrew P Fellowes, Stephen Q Wong, Stephen B Fox
ALK, ROS1 and RET gene fusions are important predictive biomarkers for tyrosine kinase inhibitors in lung cancer. Currently, the gold standard method for gene fusion detection is Fluorescence In Situ Hybridization (FISH) and while highly sensitive and specific, it is also labour intensive, subjective in analysis, and unable to screen a large numbers of gene fusions. Recent developments in high-throughput transcriptome-based methods may provide a suitable alternative to FISH as they are compatible with multiplexing and diagnostic workflows...
February 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28174778/influence-of-wing-tip-substituents-and-reaction-conditions-on-the-structure-properties-and-cytotoxicity-of-ag-i-and-au-i-bis-nhc-complexes
#7
Julia Rieb, Bruno Dominelli, David Mayer, Christian Jandl, Jonas Drechsel, Wolfgang Heydenreuter, Stephan A Sieber, Fritz E Kühn
The formation of different conformers of dinuclear silver(i) and gold(i) 1,1'-(2-hydroxyethane-1,1-diyl) bridge-functionalized bis(NHC) complexes with various wing-tip substituents (R = methyl, isopropyl and mesityl) has been investigated using multinuclear NMR spectroscopy and SC-XRD as well as DFT calculations. The ratio of anti/syn isomers strongly depends both on wing-tip substituents and the metal. Moreover, the reaction temperature plays a significant role during the transmetallation process for the ratio of gold(i) conformers, which is further affected by purification procedures...
February 8, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28168388/external-validation-of-a-survival-nomogram-for-non-small-cell-lung-cancer-using-the-national-cancer-database
#8
Katelyn A Young, Enobong Efiong, James T Dove, Joseph A Blansfield, Marie A Hunsinger, Jeffrey L Wild, Mohsen M Shabahang, Matthew A Facktor
PURPOSE: Survival nomograms offer individualized predictions using a more diverse set of factors than traditional staging measures, including the American Joint Committee on Cancer Tumor Node Metastasis (AJCC TNM) Staging System. A nomogram predicting overall survival (OS) for resected, non-metastatic non-small cell lung cancer (NSCLC) has been previously derived from Asian patients. The present study aims to determine the nomogram's predictive capability in the US using the National Cancer Database (NCDB)...
February 6, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28159026/design-and-validation-of-a-self-administered-questionnaire-as-an-aid-to-detection-of-occupational-exposure-to-lung-carcinogens
#9
C Pélissier, V Dutertre, P Fournel, I Gendre, J Michel Vergnon, J Kalecinski, F Tinquaut, L Fontana, F Chauvin
OBJECTIVE: Ten to thirty percent of lung cancer is thought to be of occupational origin. Lung cancer is under-declared as an occupational disease in Europe, and most declarations of occupational disease concern asbestos. The purpose of this study was to design and validate a short, sensitive self-administered questionnaire, as an aid for physicians in detecting occupational exposure to asbestos and other lung carcinogens in order to remedy occupational lung cancer under-declaration. STUDY DESIGN: Cross-sectional study...
February 2017: Public Health
https://www.readbyqxmd.com/read/28130689/comparison-of-machine-learning-methods-for-classifying-mediastinal-lymph-node-metastasis-of-non-small-cell-lung-cancer-from-18-f-fdg-pet-ct-images
#10
Hongkai Wang, Zongwei Zhou, Yingci Li, Zhonghua Chen, Peiou Lu, Wenzhi Wang, Wanyu Liu, Lijuan Yu
BACKGROUND: This study aimed to compare one state-of-the-art deep learning method and four classical machine learning methods for classifying mediastinal lymph node metastasis of non-small cell lung cancer (NSCLC) from (18)F-FDG PET/CT images. Another objective was to compare the discriminative power of the recently popular PET/CT texture features with the widely used diagnostic features such as tumor size, CT value, SUV, image contrast, and intensity standard deviation. The four classical machine learning methods included random forests, support vector machines, adaptive boosting, and artificial neural network...
December 2017: EJNMMI Research
https://www.readbyqxmd.com/read/28074327/when-should-negative-endobronchial-ultrasonography-findings-be-confirmed-by-a-more-invasive-procedure
#11
Basil S Nasir, Kazuhiro Yasufuku, Moishe Liberman
The treatment of non-small cell lung cancer is largely dependent on accurate staging in order to determine appropriate therapy. Despite advances in imaging, such as computed tomography and positron emission tomography, invasive mediastinal staging is frequently needed to rule out mediastinal involvement prior to curative-intent stereotactic ablative radiotherapy or surgical resection. Surgical mediastinal staging with mediastinoscopy, or anterior mediastinotomy, were traditionally considered the gold standard for invasive mediastinal staging...
January 10, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28073897/identification-of-alk-ros1-and-ret-fusions-by-a-multiplexed-mrna-based-assay-in-formalin-fixed-paraffin-embedded-samples-from-advanced-non-small-cell-lung-cancer-patients
#12
Noemí Reguart, Cristina Teixidó, Ana Giménez-Capitán, Laia Paré, Patricia Galván, Santiago Viteri, Sonia Rodríguez, Vicente Peg, Erika Aldeguer, Nuria Viñolas, Jordi Remon, Niki Karachaliou, Esther Conde, Fernando Lopez-Rios, Ernest Nadal, Sabine Merkelbach-Bruse, Reinhard Büttner, Rafael Rosell, Miguel A Molina-Vila, Aleix Prat
BACKGROUND: Anaplastic lymphoma receptor tyrosine kinase (ALK), ROS protooncogene 1, receptor tyrosine kinase (ROS1), and ret protooncogene (RET) fusions are present in 5%-7% of patients with advanced non-small-cell lung cancer (NSCLC); their accurate identification is critical to guide targeted therapies. FISH and immunohistochemistry (IHC) are considered the gold standards to determine gene fusions, they have limitations. The nCounter platform is a potentially useful genomic tool for multiplexed detection of gene fusions, but has not been validated in the clinical setting...
January 10, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28066614/the-role-of-bronchoscopy-in-the-diagnosis-of-early-lung-cancer-a-review
#13
REVIEW
Marco Andolfi, Rossella Potenza, Rosanna Capozzi, Valeria Liparulo, Francesco Puma, Kazuhiro Yasufuku
Lung cancer is the leading cause of cancer-related deaths worldwide with an overall 5-year survival rate of 17% after diagnoses. Indeed many patients tend to have a very poor prognosis, due to being diagnosed at an advanced stage. Conversely patients who are diagnosed at an early stage have a 5-year survival >70%, indicating that early detection of lung cancer is crucial to improve survival. Although flexible bronchoscopy is a relatively non-invasive procedure for patients suspected of having lung cancer, only 29% of carcinoma in situ (CIS) and 69% of microinvasive tumors were detectable using white light bronchoscopy (WLB) alone...
November 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28049169/management-of-stage-i-and-ii-nonsmall-cell-lung-cancer
#14
Fiona McDonald, Michèle De Waele, Lizza E L Hendriks, Corinne Faivre-Finn, Anne-Marie C Dingemans, Paul E Van Schil
The incidence of stage I and II nonsmall cell lung cancer is likely to increase with the ageing population and introduction of screening for high-risk individuals. Optimal management requires multidisciplinary collaboration. Local treatments include surgery and radiotherapy and these are currently combined with (neo)adjuvant chemotherapy in specific cases to improve long-term outcome. Targeted therapies and immunotherapy may also become important therapeutic modalities in this patient group. For resectable disease in patients with low cardiopulmonary risk, complete surgical resection with lobectomy remains the gold standard...
January 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28047525/su-g-bra-11-tumor-tracking-in-an-iterative-volume-of-interest-based-4d-cbct-reconstruction
#15
R Martin, M Ahmad, T Pan
PURPOSE: 4D CBCT can allow evaluation of tumor motion immediately prior to radiation therapy, but suffers from heavy artifacts that limit its ability to track tumors. Various iterative and compressed sensing reconstructions have been proposed to reduce these artifacts, but are costly time-wise and can degrade the image quality of bony anatomy for alignment with regularization. We have previously proposed an iterative volume of interest (I4D VOI) method which minimizes reconstruction time and maintains image quality of bony anatomy by focusing a 4D reconstruction within a VOI...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28028336/comparative-study-of-bronchoalveolar-lavage-bronchial-brushing-and-fnac-in-diagnosing-malignant-neoplasms-of-lungs
#16
Vijeta Tomar, N Vijay, P Nuwal, R Dixit
BACKGROUND: Lung cancer is the leading cause of death in developed countries and is increasing at alarming rates in developing countries. Cytological techniques such as bronchoalveolar lavage (BAL), bronchial brushing (BB), and fine needle aspiration cytology (FNAC) can aid in the early diagnosis of lung malignancies. MATERIALS AND METHODS: A total of 67 cases, suspected of lung cancer between January 2010 and December 2012, were selected where samples of BAL, BB, FNAC, as well as biopsy were obtained and processed according to the standard procedures of cytology and histology...
October 2016: Journal of Cytology
https://www.readbyqxmd.com/read/27976661/an-approach-to-interpreting-restrictive-spirometric-pattern-results-in-occupational-settings
#17
Federica Tafuro, Massimo Corradi
OBJECTIVES: The aim of this review is to provide an updated overview of definition, epidemiology, diagnostic algorithm and occupational exposures related to abnormal restrictive spirometrical pattern (RSP) in order to improve the correct interpretation of spirometry test results by occupational healthcare providers. METHODS: A review of the scientific English literature of the last 25 years was carried out with MEDLINE and related keywords [(restricti* AND spirometr*) AND occupational]...
December 13, 2016: La Medicina del Lavoro
https://www.readbyqxmd.com/read/27931198/fdg-pet-parameters-predicting-mediastinal-malignancy-in-lung-cancer
#18
M Serra Fortuny, M Gallego, Ll Berna, C Montón, L Vigil, M J Masdeu, A Fernández-Villar, M I Botana, R Cordovilla, R García-Luján, E Cases, E Monsó
BACKGROUND: Staging of mediastinal lymph nodes in non-small cell lung cancer (NSCLC) is mandatory. The maximum Standard Uptake Value (SUVmax) obtained using F-18 fluorodeoxyglucose positron emission tomography (FDG-PET) is the best non-invasive technique available for this evaluation, but its performance varies from center to center. The aim of the present study was to identify FDG-PET predictors of mediastinal malignancy that are able to minimize intercenter variability and improve the selection of subsequent staging procedures...
December 8, 2016: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/27922537/bayesian-analysis-of-silica-exposure-and-lung-cancer-using-human-and-animal-studies
#19
Scott M Bartell, Ghassan Badri Hamra, Kyle Steenland
BACKGROUND: Bayesian methods can be used to incorporate external information into epidemiologic exposure-response analyses of silica and lung cancer. METHODS: We used data from a pooled mortality analysis of silica and lung cancer (n = 65,980), using untransformed and log-transformed cumulative exposure. Animal data came from chronic silica inhalation studies using rats. We conducted Bayesian analyses with informative priors based on the animal data and different cross-species extrapolation factors...
March 2017: Epidemiology
https://www.readbyqxmd.com/read/27914192/accuracy-and-consequences-of-same-day-invasive-lung-cancer-workup-a-retrospective-study-in-patients-treated-with-surgical-resection
#20
Kirsten Riis Madsen, Asbjørn Høegholm, Uffe Bodtger
BACKGROUND: Though widely used, little is known about accuracy and efficacy of same-day, invasive workup of suspected lung cancer. OBJECTIVE: To evaluate the accuracy and efficacy of same-day, invasive lung cancer workup (diagnosis and mediastinal staging), and to identify differences between patients without (Group A) or with (Group B) need for resampling. METHODS: A retrospective study was performed on all consecutive patients referred for surgical treatment for localised lung cancer after invasive diagnostic and staging workup at our unit...
2016: European Clinical Respiratory Journal
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