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https://www.readbyqxmd.com/read/28422778/ultrasound-as-a-screening-tool-for-central-venous-catheter-positioning-and-exclusion-of-pneumothorax
#1
Rabia Amir, Ziyad O Knio, Feroze Mahmood, Achikam Oren-Grinberg, Akiva Leibowitz, Ruma Bose, Shahzad Shaefi, John D Mitchell, Muneeb Ahmed, Amit Bardia, Daniel Talmor, Robina Matyal
OBJECTIVES: Although real-time ultrasound guidance during central venous catheter insertion has become a standard of care, postinsertion chest radiograph remains the gold standard to confirm central venous catheter tip position and rule out associated lung complications like pneumothorax. We hypothesize that a combination of transthoracic echocardiography and lung ultrasound is noninferior to chest radiograph when used to accurately assess central venous catheter positioning and screen for pneumothorax...
April 18, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28408368/neonatal-airway-challenging-endotracheal-intubation-in-infants-with-tracheal-malformations-at-birth
#2
Arpan Agarwal, Masakazu Nakao, Victor Samuel Rajadurai, Suresh Chandran
Intubating newborn infants can be exacting. We describe two cases of endotracheal intubations in infants born with tracheal malformations. A male infant aged 30 weeks required intubation at birth for respiratory distress. Repeated attempts at intubation failed to achieve an optimal endotracheal tube position as the tube could not advance beyond the vocal cords. Hence ventilation continued with suboptimal air entry in the lungs. Bronchoscopy and CT scan confirmed tracheal stenosis. Slide tracheoplasty was successfully executed on day 78 of life...
April 13, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28405036/rapidity-and-efficacy-of-ultrasonographic-sliding-lung-sign-and-auscultation-in-confirming-endotracheal-intubation-in-overweight-and-obese-patients
#3
Sunil Rajan, Jayasankar Surendran, Jerry Paul, Lakshmi Kumar
BACKGROUND AND AIMS: Obese individuals are predisposed to difficult airway and intubation. They usually yield confusing or misleading auscultatory findings. We aimed to assess the rapidity and efficacy of ultrasonographic (USG) sliding lung sign for confirming endotracheal intubation in normal as well as overweight and obese surgical patients. METHODS: This prospective, observational study was performed in forty surgical patients. Twenty patients with body mass index (BMI) <25 were recruited to Group A, whereas twenty patients with BMI ≥25 constituted Group B...
March 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28404216/lung-ultrasonography-to-diagnose-pneumothorax-of-the-newborn
#4
Jing Liu, Jing-Han Chi, Xiao-Ling Ren, Jie Li, Ya-Juan Chen, Zu-Lin Lu, Ying Liu, Wei Fu, Rong-Ming Xia
OBJECTIVE: To explore the reliability and accuracy of lung ultrasound for diagnosing neonatal pneumothorax. METHODS: This study was divided into two phases. (1) In the first phase, from January 2013 to June 2015, 40 patients with confirmed pneumothorax had lung ultrasound examinations performed to identify the sonographic characteristics of neonatal pneumothorax. (2) In the second phase, from July 2015 to August 2016, lung ultrasound was undertaken on 50 newborn infants with severe lung disease who were suspected of having pneumothorax, to evaluate the sonographic accuracy and reliability to diagnose pneumothorax...
April 3, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28400960/longitudinal-assessment-of-bleomycin-induced-lung-fibrosis-by-micro-ct-correlates-with-histological-evaluation-in-mice
#5
Francesca Ruscitti, Francesca Ravanetti, Jeroen Essers, Yanto Ridwan, Sasha Belenkov, Wim Vos, Francisca Ferreira, Alex KleinJan, Paula van Heijningen, Cedric Van Holsbeke, Antonio Cacchioli, Gino Villetti, Franco Fabio Stellari
BACKGROUND: The intratracheal instillation of bleomycin in mice induces early damage to alveolar epithelial cells and development of inflammation followed by fibrotic tissue changes and represents the most widely used model of pulmonary fibrosis to investigate human IPF. Histopathology is the gold standard for assessing lung fibrosis in rodents, however it precludes repeated and longitudinal measurements of disease progression and does not provide information on spatial and temporal distribution of tissue damage...
2017: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/28377567/chronic-granulomatous-disease-presenting-as-aspergillus-fumigatus-pneumonia-in-a-previously-healthy-young-woman
#6
David Williams, Dipen Kadaria, Amik Sodhi, Roy Fox, Glenn Williams, Stephen Threlkeld
BACKGROUND Chronic Granulomatous Disease (CGD) is a rare immunodeficiency disease caused by a genetic defect in the NADPH (nicotinamide adenine dinucleotide phosphate) oxidase enzyme, resulting in increased susceptibility to bacterial and fungal infections. The inheritance can be X-linked or autosomal recessive. Patients usually present with repeated infections early in life. We present an unusual case of a 23-year-old patient diagnosed with CGD. CASE REPORT A 23-year-old white woman with no previous history of recurrent infections presented with complaints of fever, shortness of breath, and diffuse myalgia...
April 5, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28374551/the-impact-of-hyperglycemia-on-adhesion-between-endothelial-and-cancer-cells-revealed-by-single-cell-force-spectroscopy
#7
Katarzyna E Malek-Zietek, Marta Targosz-Korecka, Marek Szymonski
The impact of hyperglycemia on adhesion between lung carcinoma cells (A549) and pulmonary human aorta endothelial cells (PHAEC) was studied using the single-cell force spectroscopy. Cancer cells were immobilized on a tipless Atomic Force Microscopy (AFM) cantilever and a single layer of endothelial cells was prepared on a glass slide. The measured force-distance curves provided information about the detachment force and about the frequency of specific ligand-receptor rupture events. Measurements were performed for different times of short term (up to 2 h) and prolonged hyperglycemia (3 h - 24 h)...
April 4, 2017: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/28370323/recombinant-cells-in-the-lung-increase-with-age-via-de-novo-recombination-events-and-clonal-expansion
#8
Takafumi Kimoto, Jennifer E Kay, Na Li, Bevin P Engelward
Homologous recombination (HR) is a critical DNA repair pathway, which is usually error-free, but can sometimes lead to cancer-promoting mutations. Despite the importance of HR as a driver of mutations, the spontaneous frequency of such mutations has proven difficult to study. To gain insight to location, cell type, and subsequent proliferation of mutated cells, we used the Rosa26 Direct Repeat (RaDR) mice for in situ detection and quantification of recombinant cells in the lung. We developed a method for automated enumeration of recombinant cells in lung tissue using the Metafer 4 slide-scanning platform...
April 2017: Environmental and Molecular Mutagenesis
https://www.readbyqxmd.com/read/28367942/-original-article-application-of-low-vacuum-scanning-electron-microscopy-in-cytopathology-to-what-extent-can-adenocarcinoma-be-morphologically-distinguished-from-squamous-cell-carcinoma-in-lung-cancer
#9
Tetsuya Yano, Yurie Soejima, Yutaka Nakajima, Takumi Akashi, Motoji Sawabe
BACKGROUND: Anticancer drugs for targeted molecular therapies have been applied to the treatment of lung cancer. Since the effects of medicine for adenocarcinoma (ADC) or squamous cell carcinoma (SQCC) differ, the ability to discriminate these lesions is important. In the present study, we examined whether ADC and SQCC could be distinguished using low-vacuum scanning electron microscopy (LVSEM) to examine cytopathological specimens. METHODS: Thirty-seven cases of bronchoscopic samples were retrospectively examined using LVSEM on the surface structures of the cancer cells...
2017: Journal of Medical and Dental Sciences
https://www.readbyqxmd.com/read/28360113/directional-preference-of-airway-smooth-muscle-mass-increase-in-human-asthmatic-airways
#10
Gijs Ijpma, Alice Panariti, Anne-Marie Lauzon, James G Martin
Airway smooth muscle (ASM) orientation and morphology determine the ability of the muscle to constrict the airway. In asthma, ASM mass is increased, but it is unknown whether ASM orientation and morphology are altered as well, or whether the remodelling at the source of the mass increase is ongoing. We dissected human airway trees from asthmatic and control lungs. Stained, intact airway sections were imaged in axial projection to show ASM bundle orientation, while cross-sectional histological slides were used to assess ASM area, bundle thickness and ASM bundle to basement membrane distance...
March 30, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28320035/srage-is-elevated-in-the-lungs-of-premature-infants-receiving-mechanical-ventilation
#11
Henry J Rozycki, Jennifer Bradley, Simon Karam
Background Soluble receptor for advanced glycation end-products (sRAGE), a soluble isoform of the RAGE receptor, is elevated in lungs from patients with acute conditions such as acute respiratory distress syndrome and bronchiolitis. This study investigated whether sRAGE is present in ventilated infants. Methods Tracheal aspirates from the first week or the fifth week of life were obtained from intubated very low birth weight subjects and analyzed by Western blot. Immunohistochemistry analysis for sRAGE was performed on paraffin-embedded lung autopsy slides from 19 other infants...
March 20, 2017: American Journal of Perinatology
https://www.readbyqxmd.com/read/28298147/interrogating-bronchoalveolar-lavage-samples-via-exclusion-based-analyte-extraction
#12
Jacob J Tokar, Jay W Warrick, David J Guckenberger, Jamie M Sperger, Joshua M Lang, J Scott Ferguson, David J Beebe
Although average survival rates for lung cancer have improved, earlier and better diagnosis remains a priority. One promising approach to assisting earlier and safer diagnosis of lung lesions is bronchoalveolar lavage (BAL), which provides a sample of lung tissue as well as proteins and immune cells from the vicinity of the lesion, yet diagnostic sensitivity remains a challenge. Reproducible isolation of lung epithelia and multianalyte extraction have the potential to improve diagnostic sensitivity and provide new information for developing personalized therapeutic approaches...
March 1, 2017: SLAS Technology
https://www.readbyqxmd.com/read/28297441/comprehensive-dosimetric-planning-comparison-for-early-stage-non-small-cell-lung-cancer-with-sabr-fixed-beam-imrt-versus-vmat-versus-tomotherapy
#13
Ilma Xhaferllari, Omar El-Sherif, Stewart Gaede
Volumetric-modulated arc therapy (VMAT) is emerging as a leading technology in treating early-stage, non-small cell lung cancer (NSCLC) with stereotactic ablative radiotherapy (SABR). However, two other modalities capable of delivering intensity-modulated radiation therapy (IMRT) include fixed-beam and helical TomoTherapy (HT). This study aims to provide an extensive dosimetric comparison among these various IMRT techniques for treating early-stage NSCLC with SABR. Ten early-stage NSCLC patients were retrospectively optimized using three fixed-beam techniques via nine to eleven beams (high and low modulation step-and-shoot (SS), and sliding window (SW)), two VMAT techniques via two partial arcs (SmartArc (SA) and RapidArc (RA)), and three HT techniques via three different fan beam widths (1 cm, 2...
September 2016: Journal of Applied Clinical Medical Physics
https://www.readbyqxmd.com/read/28278348/a-prospective-multi-institutional-pathologist-based-assessment-of-4-immunohistochemistry-assays-for-pd-l1-expression-in-non-small-cell-lung-cancer
#14
David L Rimm, Gang Han, Janis M Taube, Eunhee S Yi, Julia A Bridge, Douglas B Flieder, Robert Homer, William W West, Hong Wu, Anja C Roden, Junya Fujimoto, Hui Yu, Robert Anders, Ashley Kowalewski, Christopher Rivard, Jamaal Rehman, Cory Batenchuk, Virginia Burns, Fred R Hirsch, Ignacio I Wistuba
Importance: Four assays registered with the US Food and Drug Administration (FDA) detect programmed cell death ligand 1 (PD-L1) to enrich for patient response to anti-programmed cell death 1 and anti-PD-L1 therapies. The tests use 4 separate PD-L1 antibodies on 2 separate staining platforms and have their own scoring systems, which raises questions about their similarity and the potential interchangeability of the tests. Objective: To compare the performance of 4 PD-L1 platforms, including 2 FDA-cleared assays, 1 test for investigational use only, and 1 laboratory-developed test...
March 9, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/28272845/accuracy-of-next-generation-sequencing-for-the-identification-of-clinically-relevant-variants-in-cytology-smears-in-lung-adenocarcinoma
#15
Jordan E Baum, Pan Zhang, Rana S Hoda, Brian Geraghty, Hanna Rennert, Navneet Narula, Helen D Fernandes
BACKGROUND: Minimally invasive diagnostic procedures such as needle-core biopsy and fine-needle aspiration provide adequate material for molecular analyses. Advances in precision oncology are trending toward the interrogation of limited amounts of genomic material to guide clinical and therapeutic decisions. The aim of this study was to investigate the minimum cellularity needed on cytologic smears for the identification of clinically relevant variants with next-generation sequencing (NGS)...
March 8, 2017: Cancer
https://www.readbyqxmd.com/read/28248819/a-grading-system-combining-tumor-budding-and-nuclear-diameter-predicts-prognosis-in-resected-lung-squamous-cell-carcinoma
#16
Kyuichi Kadota, Yumi Miyai, Naomi Katsuki, Yoshio Kushida, Toru Matsunaga, Masaya Okuda, Hiroyasu Yokomise, Nobuhiro Kanaji, Shuji Bandoh, Reiji Haba
For lung squamous cell carcinomas, there are no histologic findings that have been universally accepted as prognostic factors. Tumor budding and nuclear grade have been recognized as prognostic factors in other carcinomas. In this study, we investigated whether pathologic findings could determine clinical outcome in Japanese patients with lung squamous cell carcinomas. Tumor slides from surgically resected lung squamous cell carcinomas (1999 to 2012) were reviewed (n=216). Tumors were evaluated for histologic subtypes, differentiation, tumor budding, nuclear diameter, and mitosis...
February 28, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28241108/external-quality-assurance-in-nongynecologic-cytology-the-australasian-experience
#17
Paul W Shield, Felicity Frost, Jo L Finnimore, R Gordon Wright, Margaret C Cummings
BACKGROUND: The Royal College of Pathologists of Australasia Cytopathology Quality Assurance Program has operated an external quality assurance program in nongynecologic cytopathology since 1993. Glass slide preparations of a wide range of nongynecologic cases were circulated to approximately 200 cytopathology laboratories in 16 countries. METHODS: General nongynecologic cytology cases were manufactured from residual specimens after routine diagnosis. Fine-needle aspiration (FNA) cases were made by sampling fresh tissue and making direct specimens...
February 27, 2017: Cancer
https://www.readbyqxmd.com/read/28231386/evaluating-the-effectiveness-of-rna-in-situ-hybridization-for-detecting-lung-adenocarcinoma-with-anaplastic-lymphoma-kinase-rearrangement
#18
Naoki Nakajima, Akihiko Yoshizawa, Kyoko Kondo, Mariyo Rokutan-Kurata, Masahiro Hirata, Ayako Furuhata, Shinji Sumiyoshi, Makoto Sonobe, Toshi Menju, Masanobu Momose, Masakazu Fujimoto, Hiroshi Date, Hironori Haga
AIMS: An easy and rapid assay for detecting mRNA in formalin-fixed paraffin-embedded samples [RNA in-situ hybridization (ISH)] has been reported recently. The aim of this study was to investigate the diagnostic accuracy of RNA ISH in detecting lung adenocarcinoma (LA) with anaplastic lymphoma kinase (ALK) gene rearrangement. METHODS AND RESULTS: We tested ALK RNA ISH on 11 resected LAs for which ALK fusion was confirmed by immunohistochemistry (IHC) and/or fluorescence in-situ hybridization (FISH)...
February 23, 2017: Histopathology
https://www.readbyqxmd.com/read/28223152/pathological-findings-and-prognosis-in-a-large-prospective-cohort-of-chronic-hypersensitivity-pneumonitis
#19
Ping Wang, Kirk D Jones, Anatoly Urisman, Brett M Elicker, Thomas Urbania, Kerri A Johannson, Deborah Assayag, Joyce Lee, Paul J Wolters, Harold R Collard, Laura L Koth
BACKGROUND: The ability of specific histopathological features to predict mortality or lung transplant in chronic hypersensitivity pneumonitis patients is unknown. METHODS: Patients with chronic hypersensitivity pneumonitis diagnosed by surgical lung biopsy were identified from an ongoing longitudinal cohort. The surgical lung biopsy slides were evaluated prospectively by an experienced thoracic pathologist using a standardized checklist to differentiate the major pathologic patterns and score the presence of specific histopathological features...
February 18, 2017: Chest
https://www.readbyqxmd.com/read/28217073/lung-point-and-power-slide-signs-help-to-improve-the-accuracy-of-lung-ultrasound-to-diagnose-pneumothorax
#20
Swapnil Y Parab, Sohan Lal Solanki
No abstract text is available yet for this article.
January 2017: Saudi Journal of Anaesthesia
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