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https://www.readbyqxmd.com/read/28444577/comparison-of-clinical-serological-and-prognostic-differences-among-juvenile-adult-and-late-onset-lupus-nephritis-in-korean-patients
#1
Ji-Hyoun Kang, Dong-Jin Park, Kyung-Eun Lee, Ji Shin Lee, Yoo-Duk Choi, Shin-Seok Lee
We investigated whether lupus nephritis (LN) patients could be distinguished based on the time of disease onset and, if so, whether the groups differed in their clinical and laboratory features and long-term prognosis in ethnically homogeneous Korean patients. We enrolled 117 systemic lupus erythematosus patients with available clinical data at the time of renal biopsy of LN. Sociodemographic, clinical, and laboratory data and concomitant diseases were evaluated at the time of renal biopsy. We divided LN patients, according to age at LN diagnosis, into three groups: juvenile-onset LN (JLN, diagnosed at ≤18 years), adult-onset LN (ALN, diagnosed at 18-50 years), and late-onset LN (LLN, diagnosed at >50 years) and compared demographic, clinical, histological, and laboratory findings...
April 25, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28418337/a-simple-measure-to-assess-hyperinflation-and-air-trapping-1-forced-expiratory-volume-in-three-second-forced-vital-capacity
#2
Sermin Börekçi, Tunçalp Demir, Aslı Görek Dilektaşlı, Melahat Uygun, Nurhayat Yıldırım
BACKGROUND: Several recent studies have suggested that 1 minus-forced expiratory volume expired in 3 seconds / forced vital capacity (1-FEV3/FVC) may be an indicator of distal airway obstruction and a promising measure to evaluate small airways dysfunction. AIMS: To investigate the associations of 1-FEV3/FVC with the spirometric measures and lung volumes that assess small airways dysfunction and reflects hyperinflation and air trapping. STUDY DESIGN: Retrospective cross-sectional study...
April 5, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28368706/resting-physiological-correlates-of-reduced-exercise-capacity-in-smokers-with-mild-airway-obstruction
#3
Amany F Elbehairy, Azmy Faisal, Jordan A Guenette, Dennis Jensen, Katherine A Webb, Rashid Ahmed, J Alberto Neder, Denis E O'Donnell
Smokers with minor spirometric abnormalities can experience persistent activity-related dyspnea and exercise intolerance. Additional resting tests can expose heterogeneous physiological abnormalities, but their relevance and association with clinical outcomes remain uncertain. Subjects included sixty-two smokers (≥20 pack-years), with cough and/or dyspnea and minor airway obstruction [forced expiratory volume in one-second (FEV1) ≥80% predicted and >5th percentile lower limit of normal (LLN) (i.e., z-score >-1...
April 3, 2017: COPD
https://www.readbyqxmd.com/read/28356729/measures-of-bronchodilator-response-of-fev1-fvc-and-svc-in-a-swedish-general-population-sample-aged-50-64-years-the-scapis-pilot-study
#4
K Torén, B Bake, A-C Olin, G Engström, A Blomberg, J Vikgren, J Hedner, J Brandberg, H L Persson, C M Sköld, A Rosengren, G Bergström, C Janson
BACKGROUND: Data are lacking from general population studies on how to define changes in lung function after bronchodilation. This study aimed to analyze different measures of bronchodilator response of forced expiratory volume in 1 second (FEV1), forced vital capacity (FVC) and slow vital capacity (SVC). MATERIALS AND METHODS: Data were derived from the Swedish Cardiopulmonary Bioimage Study (SCAPIS) Pilot study. This analysis comprised 1,050 participants aged 50-64 years from the general population...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/28337541/tyrosine-kinase-inhibitor-therapy-induced-changes-in-humoral-immunity-in-patients-with-chronic-myeloid-leukemia
#5
Hanna L M Rajala, Mohamed El Missiry, Anniina Ruusila, Perttu Koskenvesa, Tim H Brümmendorf, Bjorn T Gjertsen, Jeroen Janssen, Kourosh Lotfi, Berit Markevärn, Ulla Olsson-Strömberg, Leif Stenke, Jesper Stentoft, Johan Richter, Henrik Hjorth-Hansen, Anna Kreutzman, Satu Mustjoki
PURPOSE: Tyrosine kinase inhibitors (TKIs) have well-characterized immunomodulatory effects on T and NK cells, but the effects on the humoral immunity are less well known. In this project, we studied TKI-induced changes in B cell-mediated immunity. METHODS: We collected peripheral blood (PB) and bone marrow (BM) samples from chronic myeloid leukemia (CML) patients before and during first-line imatinib (n = 20), dasatinib (n = 16), nilotinib (n = 8), and bosutinib (n = 12) treatment...
March 23, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28273094/spirometry-questionnaire-and-electronic-medical-record-based-copd-in-a-population-survey-comparing-prevalence-level-of-agreement-and-associations-with-potential-risk-factors
#6
Floor Borlée, C Joris Yzermans, Esmeralda Krop, Bernadette Aalders, Jos Rooijackers, Jan-Paul Zock, Christel E van Dijk, Catharina B M Maassen, François Schellevis, Dick Heederik, Lidwien A M Smit
BACKGROUND: COPD-diagnosis is confirmed by post-bronchodilator (BD) spirometry. However, epidemiological studies often rely on pre-BD spirometry, self-reports, or medical records. This population-based study aims to determine COPD-prevalence based on four different operational definitions and their level of agreement, and to compare associations between COPD-definitions and risk factors. METHODS: COPD-prevalence in 1,793 adults from the general Dutch population (aged 18-70 years) was assessed based on self-reported data, Electronic Medical Records (EMR), and post-BD spirometry: using the FEV1/FVC below the lower limit of normal (LLN) and GOLD fixed cut-off (FEV1/FVC <0...
2017: PloS One
https://www.readbyqxmd.com/read/28255088/oral-n-acetylcysteine-and-exercise-tolerance-in-mild-chronic-obstructive-pulmonary-disease
#7
Daniel M Hirai, Joshua H Jones, Joel T Zelt, Marianne L da Silva, Robert F Bentley, Brittany Ann Edgett, Brendon James Gurd, Michael E Tschakovsky, Denis E O'Donnell, J Alberto Neder
Heightened oxidative stress is implicated in the progressive impairment of skeletal muscle vascular and mitochondrial function in chronic obstructive pulmonary disease (COPD). Whether accumulation of reactive oxygen species contribute to exercise intolerance in the early stages of COPD is unknown. We examined the effects of oral antioxidant treatment with N-acetylcysteine (NAC) on respiratory, cardiovascular and locomotor muscle function and exercise tolerance in patients with mild COPD. Thirteen patients with forced expiratory volume in one second and forced vital capacity ratio (FEV1/FVC) < lower limit of normal (LLN) and FEV1 ≥ LLN were enrolled in a double-blind, randomized crossover study to receive NAC (1800 mg/day) or placebo for 4 days...
March 2, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28244800/reduced-forced-vital-capacity-in-an-african-population-prevalence-and-risk-factors
#8
Daniel O Obaseki, Gregory E Erhabor, Olayemi F Awopeju, Olufemi O Adewole, Bamidele O Adeniyi, A Sonia Buist, Peter G Burney
RATIONALE: Black Africans have a reduced forced vital capacity compared with Caucasians, but the prevalence and determinants of reduced values are not well understood. OBJECTIVES: To evaluate the prevalence and factors leading to reduced forced vital capacity in a Nigerian population and to examine current theories regarding the determinants of this difference. METHODS: We studied the ventilatory function of 883 adults aged ≥40 years participating in the Burden of Obstructive Lung Disease (BOLD) study in Ile-Ife, Nigeria...
February 28, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28149572/effect-of-changing-from-the-national-health-and-nutritional-examination-survey-iii-spirometry-reference-range-to-that-of-the-global-lung-initiative-2012-at-gold-coast-hospital-and-health-service
#9
Laura A K Embling, Debbie Zagami, Krishna Bajee Sriram, Robert J Gordon, Pathmanathan Sivakumaran
The categorisation of lung disease into obstructive ventilatory defect (OVD) and tendency to a restrictive ventilatory defect (TRVD) patterns using spirometry is used to guide both prognostication and treatment. The effectiveness of categorisation depends upon having reference ranges that accurately represent the population they describe. The Global Lung Initiative 2012 (GLI 2012) has spirometry reference ranges drawn from the largest sample size to date. This study aimed to determine whether using spirometry reference ranges from the new GLI 2012 dataset, compared to the previously used National Health and Nutritional Examination Survey III (NHANES III) dataset, resulted in a change in diagnosis between OVD, TRVD and normal ventilatory pattern (NVP)...
December 2016: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28146643/childhood-lung-function-predicts-adult-copd-and-asthma-copd-overlap-syndrome-acos
#10
Dinh S Bui, John A Burgess, Adrian J Lowe, Jennifer L Perret, Caroline J Lodge, Minh Bui, Stephen Morrison, Bruce R Thompson, Paul S Thomas, Graham G Giles, Judith Garcia-Aymerich, Debbie Jarvis, Michael J Abramson, E Haydn Walters, Melanie C Matheson, Shyamali C Dharmage
RATIONALE: There are limited data on early life risk factors for COPD phenotypes. OBJECTIVE: To investigate the role of childhood lung function in adult spirometrically defined COPD phenotypes. METHOD: Pre-bronchodilator (BD) spirometry was performed for a cohort of 7-year old Tasmanian children. A sub-sample underwent pre-and post-BD spirometry at 45 years. For this analysis, COPD was spirometrically defined as a post-BD FEV1/FVC<lower limit of normal (LLN)...
February 1, 2017: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/28096493/combining-standard-clinical-blood-values-for-improving-survival-prediction-in-patients-with-newly-diagnosed-brain-metastases-development-and-validation-of-the-labbm-score
#11
Anna S Berghoff, Fabian Wolpert, Tim Holland-Letz, Romina Koller, Georg Widhalm, Brigitte Gatterbauer, Karin Dieckmann, Peter Birner, Rupert Bartsch, Christoph C Zielinski, Michael Weller, Matthias Preusser
BACKGROUND: We aimed to investigate the potential of standard hematologic and serum biochemical parameters to provide an independent and substantial contribution to the prediction of survival in patients with newly diagnosed brain metastases (BM). METHODS: Hemoglobin, white blood cell count, platelet count, serum albumin, creatinine, lactate dehydrogenase (LDH), and C-reactive protein (CRP) were assessed at diagnosis of BM in a discovery cohort of 1200 cancer patients...
January 17, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/27976661/an-approach-to-interpreting-restrictive-spirometric-pattern-results-in-occupational-settings
#12
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/27940105/occupational-airborne-exposure-in-relation-to-chronic-obstructive-pulmonary-disease-copd-and-lung-function-in-individuals-without-childhood-wheezing-illness-a-50-year-cohort-study
#13
Nara Tagiyeva, Steven Sadhra, Nuredin Mohammed, Shona Fielding, Graham Devereux, Ed Teo, Jon Ayres, J Graham Douglas
BACKGROUND: Evidence from longitudinal population-based studies relating occupational exposure to the full range of different forms of airborne pollutants and lung function and airway obstruction is limited. OBJECTIVE: To relate self-reported COPD and lung function impairment to occupational exposure to different forms of airborne chemical pollutants in individuals who did not have childhood wheeze. METHODS: A prospective cohort study was randomly selected in 1964 at age 10-15 years and followed up in 1989, 1995, 2001 and 2014 (aged 58-64) by spirometry and respiratory questionnaire...
December 8, 2016: Environmental Research
https://www.readbyqxmd.com/read/27899005/angle-%C3%AE-of-greater-than-80%C3%A2-at-the-start-of-spirometry-may-identify-high-quality-flow-volume-curves
#14
Ningfang Lian, Li Li, Weiying Ren, Zhilong Jiang, Lei Zhu
BACKGROUND AND OBJECTIVE: The American Thoracic Society (ATS) and European Respiratory Society (ERS) emphasize a satisfactory start in maximal expiratory flow-volume (MEFV) curves and highlight subjective parameters: performance without hesitation and expiration with maximum force. We described a new parameter, angle β for characterization of the start to the MEFV curve. METHODS: Subjects completed the MEFV curve at least three times and at least two curves met ATS/ERS quality...
April 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27884204/lateral-pelvic-lymph-node-dissection-after-neoadjuvant-chemo-radiation-for-preoperative-enlarged-lateral-nodes-in-advanced-low-rectal-cancer-study-protocol-for-a-randomized-controlled-trial
#15
Mingtian Wei, Qingbin Wu, Chuanwen Fan, Yan Li, Xiangzheng Chen, Zongguang Zhou, Junhong Han, Ziqiang Wang
BACKGROUND: Lateral lymph node (LLN) metastasis is a major cause of local recurrence of advanced rectal cancer. Although there is much controversy between Western and Eastern countries on whether lateral pelvic lymph node dissection (LLND) or neoadjuvant chemo-radiation (nCRT) is preferable for the treatment of LLN metastases, existing retrospective cohorts mainly focus on all middle/low advanced rectal cancer patients, not the specific individuals with suspicion of LLN metastases. The aim of this trial is to assess the efficacy and safety of LLND for rectal cancer patients with suspicion of LLN metastases...
November 25, 2016: Trials
https://www.readbyqxmd.com/read/27880044/tuberculosis-airway-obstruction-and-mortality-in-a-finnish-population
#16
Tiina Mattila, Markku Heliövaara, Harri Rissanen, Paul Knekt, Pauli Puukka, Tuula Vasankari
There is little long-term follow-up data concerning the association between past pulmonary tuberculosis (TB), airway obstruction and mortality. We aimed to analyse a national health examination survey data from 6701 adult Finns undergoing spirometry between 1978 and 1980 (follow-up through 2013). We identified TB either through a disease history or by a TB-indicative scar on a chest x-ray. We specified obstruction using the lower limit of normal (LLN) and classified severity using the Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages 1-4...
April 2017: COPD
https://www.readbyqxmd.com/read/27824594/global-lung-function-initiative-2012-reference-equations-for-spirometry-in-the-norwegian-population
#17
Arnulf Langhammer, Ane Johannessen, Turid L Holmen, Hasse Melbye, Sanja Stanojevic, May B Lund, Morten N Melsom, Per Bakke, Philip H Quanjer
We studied the fit of the Global Lung Function Initiative (GLI) all-age reference values to Norwegians, compared them with currently used references (European Community for Steel and Coal (ECSC) and Zapletal) and estimated the prevalence of obstructive lung disease.Spirometry data collected in 30 239 subjects (51.7% females) aged 12-90 years in three population-based studies were converted to z-scores.We studied healthy non-smokers comprising 2438 adults (57.4% females) aged 20-90 years and 8725 (47.7% female) adolescents aged 12-19 years...
December 2016: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/27817808/restrictive-spirometric-pattern-in-the-general-adult-population-methods-of-defining-the-condition-and-consequences-on-prevalence
#18
Helena Backman, Berne Eriksson, Linnea Hedman, Caroline Stridsman, Sven-Arne Jansson, Anssi Sovijärvi, Anne Lindberg, Eva Rönmark, Bo Lundbäck
BACKGROUND: Attempts have been made to use dynamic spirometry to define restrictive lung function, but the definition of a restrictive spirometric pattern (RSP) varies between studies such as BOLD and NHANES. The aim of this study was to estimate the prevalence and risk factors of RSP among adults in northern Sweden based on different definitions. METHODS: In 2008-2009 a general population sample aged 21-86y within the obstructive lung disease in northern Sweden (OLIN) studies was examined by structured interview and spirometry, and 726 subjects participated (71% of invited)...
November 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27817804/a-comparison-of-five-surveys-that-identify-individuals-at-risk-for-airflow-obstruction-and-chronic-obstructive-pulmonary-disease
#19
Folarin Sogbetun, William L Eschenbacher, Jeffrey A Welge, Ralph J Panos
BACKGROUND: The predictive characteristics of different screening surveys for the recognition of individuals at risk for airflow obstruction (AFO) have not been evaluated simultaneously in the same population. PURPOSE: To compare five AFO/COPD screening questionnaires. METHODS: 383 individuals completed the Veterans Airflow Obstruction Screening Questionnaire, Personal Level Screener for COPD (VAFOSQ), the 11-Q COPD Screening Questionnaire (11-Q), the COPD Population Screener (COPD-PS) and the Lung Function Questionnaire (LFQ) and performed spirometry...
November 2016: Respiratory Medicine
https://www.readbyqxmd.com/read/27730176/maximal-aerobic-capacity-in-ageing-subjects-actual-measurements-versus-predicted-values
#20
Cristina Pistea, Evelyne Lonsdorfer, Stéphane Doutreleau, Monique Oswald, Irina Enache, Anne Charloux
We evaluated the impact of selection of reference values on the categorisation of measured maximal oxygen consumption (V'O2peak) as "normal" or "abnormal" in an ageing population. We compared measured V'O2peak with predicted values and the lower limit of normal (LLN) calculated with five equations. 99 (58 males and 41 females) disease-free subjects aged ≥70 years completed an incremental maximal exercise test on a cycle ergometer. Mean V'O2peak was 1.88 L·min(-1) in men and 1.26 L·min(-1) in women...
January 2016: ERJ Open Research
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