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https://www.readbyqxmd.com/read/29135778/accuracy-of-medicare-claim-based-algorithm-to-detect-breast-prostate-or-lung-cancer-bone-metastases
#1
Nalini Sathiakumar, Elizabeth Delzell, Huifeng Yun, Rene Jooste, Kelly Godby, Carla Falkson, Mellissa Yong, Meredith L Kilgore
BACKGROUND: We had previously developed an algorithm for Medicare claims data to detect bone metastases associated with breast, prostate, or lung cancer. This study was conducted to examine whether this algorithm accurately documents bone metastases on the basis of diagnosis codes in Medicare claims data. METHODS: We obtained data from Medicare claims and electronic medical records of patients 65 years or older with a breast, prostate, or lung cancer diagnosis at a teaching hospital and/or affiliated clinics during 2005 or 2006...
December 2017: Medical Care
https://www.readbyqxmd.com/read/29135771/detecting-lung-and-colorectal-cancer-recurrence-using-structured-clinical-administrative-data-to-enable-outcomes-research-and-population-health-management
#2
Michael J Hassett, Hajime Uno, Angel M Cronin, Nikki M Carroll, Mark C Hornbrook, Debra Ritzwoller
INTRODUCTION: Recurrent cancer is common, costly, and lethal, yet we know little about it in community-based populations. Electronic health records and tumor registries contain vast amounts of data regarding community-based patients, but usually lack recurrence status. Existing algorithms that use structured data to detect recurrence have limitations. METHODS: We developed algorithms to detect the presence and timing of recurrence after definitive therapy for stages I-III lung and colorectal cancer using 2 data sources that contain a widely available type of structured data (claims or electronic health record encounters) linked to gold-standard recurrence status: Medicare claims linked to the Cancer Care Outcomes Research and Surveillance study, and the Cancer Research Network Virtual Data Warehouse linked to registry data...
December 2017: Medical Care
https://www.readbyqxmd.com/read/29078696/vats-segmentectomy-an-underused-option
#3
REVIEW
Paolo Mendogni, Davide Tosi, Lorenzo Rosso, Alessandro Palleschi, Margherita Cattaneo, Alessandra Mazzucco, Mario Nosotti
It is well known that the "gold standard" procedure for surgically resectable early-stage non-small cell lung cancer (NSCLC), is pulmonary lobectomy. Even though sublobar resections (SLR), particularly segmentectomy, seem attractive as an alternative to lobectomy in early stage lung cancers, they are still debated procedures. The aim of this study is to answer to the question: "Is VATS lung segmentectomy an underused option?" To obtain an answer to this query, the authors carried out a review of the "state of the art" as follows: (I) performing a non-systematic review of the literature; (II) analyzing the review articles published; (III) looking at the ongoing studies, the results of which have not yet published; (IV) scanning the technical aspect of lung segmentectomy...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29078692/robotic-lobectomy
#4
Paul Linsky, Benjamin Wei
Lobectomy is still currently the gold standard for treatment of lung cancer. With the great advancement of robotic surgery, robotic lobectomy has been demonstrated to be an operation that is safe and can be done in a timely manner, similar to video-assisted thoracoscopic surgery (VATS). Additionally, reports show that long-term oncologic outcomes for robotic lobectomy are consistent with those reported for VATS and open lobectomy. Patients are selected in the same manner as those for VATS. Improved optics, increased dexterity of the instruments, and better ergonomics can yield subjective advantages to the surgeon...
2017: J Vis Surg
https://www.readbyqxmd.com/read/29069959/the-liquid-biopsy-a-tool-for-a-combined-diagnostic-and-theranostic-approach-for-care-of-a-patient-with-late-stage-lung-carcinoma-presenting-with-bilateral-ocular-metastases
#5
Linda Bouhlel, Véronique Hofman, Célia Maschi, Marius Ilié, Maryline Allégra, Charles-Hugo Marquette, Clarisse Audigier-Valette, Juliette Thariat, Paul Hofman
Liquid biopsies (LB) are used routinely in clinical practice in two situations for late stage non-small-cell lung cancer (NSCLC) patients, (i) at the initial diagnosis when looking for activating mutations in EGFR in the absence of analyzable tissue DNA and, (ii) during tumor progression on a tyrosine kinase inhibitor treatment to look for the resistance mutation T790M in EGFR. LB is not presently recommended in daily practice for the diagnosis of NSCLC. Areas covered: We report the diagnosis of a NSCLC in a patient with bilateral ocular metastases after detection of a deletion in exon 19 of EGFR when using plasma DNA...
November 2, 2017: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/29066885/asymmetric-dumbbell-shaped-silver-nanoparticles-and-spherical-gold-nanoparticles-green-synthesized-by-mangosteen-garcinia-mangostana-pericarp-waste-extracts
#6
Ji Su Park, Eun-Young Ahn, Youmie Park
Mangosteen (Garcinia mangostana) pericarp waste extract was used to synthesize gold and silver nanoparticles by a green strategy. The extract was both a reducing and stabilizing agent during synthesis. Phytochemical screening of the extract was conducted to obtain information regarding the presence/absence of primary and secondary metabolites in the extract. The in vitro antioxidant activity results demonstrated that the extract had excellent antioxidant activity, which was comparable to a standard (butylated hydroxy toluene)...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/29060925/breath-based-volatile-organic-compounds-in-the-detection-of-breast-lung-and-colorectal-cancers-a-systematic-review
#7
Ingrid Oakley-Girvan, Sharon Watkins Davis
BACKGROUND: Detecting volatile organic compounds (VOCs) could provide a rapid, noninvasive, and inexpensive screening tool for detecting cancer. OBJECTIVE: In this systematic review, we identified specific exhaled breath VOCs correlated with lung, colorectal, and breast cancer. METHODS: We identified relevant studies published in 2015 and 2016 by searching Pubmed and Web of Science. The protocol for this systematic review was registered in PROSPERO and the PRISMA guidelines were used in reporting...
October 8, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/29057239/circulating-dna-in-egfr-mutated-lung-cancer
#8
REVIEW
Aditi P Singh, Shenduo Li, Haiying Cheng
Circulating tumor DNA (ctDNA) consists of short double stranded DNA fragments that are released by tumors including non-small cell lung cancer (NSCLC). With the identification of driver mutations in the epidermal growth factor receptor (EGFR) gene and development of targeted tyrosine kinase inhibitors (TKIs), the clinical outcome of NSCLC patients in this subgroup has improved tremendously. The gold standard to assess EGFR mutation is through tissue biopsy, which can be limited by difficulty in accessing the tumor, inability of patients to tolerate invasive procedures, insufficient sample for molecular testing and inability to capture intratumoral heterogeneity...
September 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/29049856/is-left-upper-lobectomy-always-worthwhile-for-early-stage-lung-cancer-a-comparison-between-left-upper-lobectomy-trisegmentectomy-and-lingulectomy
#9
Vittorio Aprile, Pietro Bertoglio, Paolo Dini, Gerardo Palmiero, Alfredo Mussi, Marcello Carlo Ambrogi, Marco Lucchi
BACKGROUND AND OBJECTIVES: Lobectomy is the gold standard treatment for resectable Non-Small Cell Lung Cancer (NSCLC). We compared oncological outcomes of patients undergoing a "multi-segmentectomy" (trisegmentectomy or lingulectomy) and left upper lobectomy for early stage (T1-2, N0) NSCLC of the left upper lobe. METHODS: We retrospectively analyzed all patients with pathological early stage (T1-T2 N0) NSCLC located in left upper lobe who underwent a lobectomy, a trisegmentectomy, or a lingulectomy between 2006 and 2013, focusing on surgical and oncological outcomes...
October 19, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/29049175/retrospective-analysis-for-the-false-positive-diagnosis-of-pet-ct-scan-in-lung-cancer-patients
#10
Mingxia Feng, Xuemei Yang, Qiang Ma, Yong He
Early diagnosis is pivotal for prognosis of lung cancer patients. Positron emission tomography/computed tomography (PET-CT) is a useful method for human cancer diagnosis. In this study, we aimed to explore the false positive diagnosis of PET-CT in lung cancerIn total, 754 patients diagnosed with lung cancer via PET-CT were retrospectively collected in this study. Histopathological detection served as gold standard. The diagnostic accuracy of PET-CT was defined as the proportion of lung cancer cases confirmed by pathological diagnosis in the study subjects, and the percentages of misdiagnosed cases represented the false positive diagnosis of PET-CT...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28950319/igg4-related-disease-of-the-lung-a-rare-differential-diagnosis-to-lung-cancer-after-positive-positron-emission-tomography-and-biopsy
#11
Adrian Zehnder, Gregor J Kocher, Michael Seitz, Ralph A Schmid
Immunoglobulin G4-related disease is a rare immune-mediated condition that often causes serious diagnostic problems. Symptoms are unspecific, and several organs can be involved. To date, IgG4-related lung disease has seldom been reported in literature. Nevertheless, a variety of pulmonary involvement has been described, which can mimic malignancy. The gold standard for the diagnosis is the identification of typical histopathological features, even if diagnostic biomarker such as serum IgG4 concentration can be an indicator for a more aggressive course of the disease...
November 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28922334/common-malignant-brain-tumors-can-18f-fdg-pet-ct-aid-in-differentiation
#12
Nilendu C Purandare, Ameya Puranik, Sneha Shah, Archi Agrawal, Tejpal Gupta, Aliasgar Moiyadi, Prakash Shetty, Epari Shridhar, Rakesh Jalali, Venkatesh Rangarajan
OBJECTIVES: The objectives of this study were to evalute the metabolic characteristics of common malignant space-occupying lesions (SOL) of the brain and to determine the utility of fluorine-18-fluorodeoxyglucose (F-FDG) PET/CT in differentiating between the common types of malignant brain SOL. PATIENTS AND METHODS: All patients with brain SOL who were referred for an F-FDG PET/CT scan by a multidisciplinary team were included in this retrospective study. The metabolic characteristics of the brain lesions in the form of maximum standardized uptake value (SUVmax) along with tumor-to-background activity ratios were determined and differences were compared using nonparametric statistical tests...
December 2017: Nuclear Medicine Communications
https://www.readbyqxmd.com/read/28898423/iterative-volume-of-interest-based-4d-cone-beam-ct
#13
Rachael Martin, Moiz Ahmad, Geoffrey Hugo, Tinsu Pan
PURPOSE: 4D cone-beam CT (CBCT) has potential applications in soft tissue alignment and tumor motion verification at the time of radiation treatment. However, prominent streak artifacts with conventional image reconstructions have limited its clinical use and alternative reconstructions are generally too computationally expensive for the time available. We propose an iterative volume of interest based (I4D VOI) reconstruction technique, where 4D reconstruction is only performed within a VOI, to limit streak artifacts with limited added computation time...
September 12, 2017: Medical Physics
https://www.readbyqxmd.com/read/28894396/a-validation-of-clinical-data-captured-from-a-novel-cancer-care-quality-program-directly-integrated-with-administrative-claims-data
#14
David M Kern, John J Barron, Bingcao Wu, Alex Ganetsky, Vincent J Willey, Ralph A Quimbo, Michael J Fisch, Joseph Singer, Ann Nguyen, Ronac Mamtani
BACKGROUND: Data from a Cancer Care Quality Program are directly integrated with administrative claims data to provide a level of clinical detail not available in claims-based studies, and referred to as the HealthCore Integrated Research Environment (HIRE)-Oncology data. This study evaluated the validity of the HIRE-Oncology data compared with medical records of breast, lung, and colorectal cancer patients. METHODS: Data elements included cancer type, stage, histology (lung only), and biomarkers...
2017: Pragmatic and Observational Research
https://www.readbyqxmd.com/read/28834230/renal-impairment-hampers-bisphosphonate-treatment-in-a-quarter-of-lung-cancer-patients-with-bone-metastasis
#15
Katalin Fábián, Rita Puskás, Tímea Kakuk, László Prés, Dorottya Fejes, Zsolt Szegedi, Lívia Rojkó, Zoltán Szállási, Balázs Döme, Orsolya Pipek, Judit Moldvay
Renal function impairment in lung cancer patients with bone metastases was investigated, as this can limit the application of bisphosphonates representing the gold standard in the management of such cases. Clinicopathological data of 570 lung cancer patients were retrospectively analysed for changes in renal function parameters. Co-morbidities included hypertension (50%), COPD (33%) and diabetes mellitus (15%). Statistical analysis was performed with Fisher's exact tests and a Cox proportional hazards model...
August 21, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28814156/a-method-to-compare-the-performance-of-two-molecular-diagnostic-tools-in-the-absence-of-a-gold-standard
#16
Xiaonan Xue, Maja Oktay, Sumanta Goswami, Mimi Y Kim
The paper is motivated by the problem of comparing the accuracy of two molecular tests in detecting genetic mutations in tumor samples when there is no gold standard test. Commonly used sequencing methods require a large number of tumor cells in the tumor sample and the proportion of tumor cells with mutation positivity to be above a threshold level whereas new tests aim to reduce the requirement for number of tumor cells and the threshold level. A new latent class model is proposed to compare these two tests in which a random variable is used to represent the unobserved proportion of mutation positivity so that these two tests are conditionally dependent; furthermore, an independent random variable is included to address measurement error associated with the reading from each test, while existing latent class models often assume conditional independence and do not allow measurement error...
January 1, 2017: Statistical Methods in Medical Research
https://www.readbyqxmd.com/read/28740431/what-we-know-about-surgical-therapy-in-early-stage-non-small-cell-lung-cancer-a-guide-for-the-medical-oncologist
#17
REVIEW
Sassine Ghanem, Sandy El Bitar, Sami Hossri, Chanudi Weerasinghe, Jean Paul Atallah
Lung cancer remains the leading cause of death in cancer patients. The gold standard for the treatment of early-stage non-small-cell lung cancer is lobectomy with mediastinal lymph-node dissection or systematic lymph-node sampling. The evidence behind this recommendation is based on the sole randomized controlled trial conducted to date, done by the Lung Cancer Study Group and published in 1995, which found a superiority for lobectomy over sublobar resection with regard to local recurrence rate and improved survival...
2017: Cancer Management and Research
https://www.readbyqxmd.com/read/28730730/renal-impairment-hampers-bisphosphonate-treatment-in-a-quarter-of-lung-cancer-patients-with-bone-metastasis
#18
Katalin Fábián, Rita Puskás, Tímea Kakuk, László Prés, Dorottya Fejes, Zsolt Szegedi, Lívia Rojkó, Zoltán Szállási, Balázs Döme, Orsolya Pipek, Judit Moldvay
Renal function impairment in lung cancer patients with bone metastases was investigated, as this can limit the application of bisphosphonates representing the gold standard in the management of such cases. Clinicopathological data of 570 lung cancer patients were retrospectively analysed for changes in renal function parameters. Co-morbidities included hypertension (50%), COPD (33%) and diabetes mellitus (15%). Statistical analysis was performed with Fisher's exact tests and a Cox proportional hazards model...
July 21, 2017: Basic & Clinical Pharmacology & Toxicology
https://www.readbyqxmd.com/read/28720459/investigating-the-role-of-human-papillomavirus-in-lung-cancer
#19
E Argyri, E Tsimplaki, C Marketos, G Politis, E Panotopoulou
Lung cancer is the leading cancer worldwide among men and women with morbidity reaching 1.6 million. Human Papillomavirus is the causal factor of cervical cancer while its association with others is still under investigation. The purpose of our study is to examine the presence of HPV DNA as well as high-risk E6/E7 mRNA in patients with lung cancer. Lung tissues were collected during bronchoscopy and tested for HPV DNA and E6/E7 mRNA. 67 lung tissue samples were analysed. The age range was 49-85 years old (y...
June 2017: Papillomavirus Research
https://www.readbyqxmd.com/read/28705927/incidence-of-brain-metastases-on-follow-up-18-f-fdg-pet-ct-scans-of-non-small-cell-lung-cancer-patients-should-we-include-the-brain
#20
Emily S Nia, Linda L Garland, Naghmehossadat Eshghi, Benjamin B Nia, Ryan J Avery, Phillip H Kuo
The brain is the most common site of distant metastasis from lung cancer. Thus, MRI of the brain at initial staging is routinely performed, but if this examination is negative a follow-up examination is often not performed. This study evaluates the incidence of asymptomatic brain metastases in non-small cell lung cancer patients detected on follow-up (18)F-FDG PET/CT scans. Methods: In this Institutional Review Board-approved retrospective review, all vertex to thigh (18)F-FDG PET/CT scans in patients with all subtypes of lung cancer from August 2014 to August 2016 were reviewed...
September 2017: Journal of Nuclear Medicine Technology
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