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Pulmonary function testing

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https://www.readbyqxmd.com/read/28107543/quantification-of-pulmonary-fibrosis-in-a-bleomycin-mouse-model-using-automated-histological-image-analysis
#1
Jean-Claude Gilhodes, Yvon Julé, Sebastian Kreuz, Birgit Stierstorfer, Detlef Stiller, Lutz Wollin
Current literature on pulmonary fibrosis induced in animal models highlights the need of an accurate, reliable and reproducible histological quantitative analysis. One of the major limits of histological scoring concerns the fact that it is observer-dependent and consequently subject to variability, which may preclude comparative studies between different laboratories. To achieve a reliable and observer-independent quantification of lung fibrosis we developed an automated software histological image analysis performed from digital image of entire lung sections...
2017: PloS One
https://www.readbyqxmd.com/read/28107411/xenon-enhanced-dual-energy-ct-imaging-in-combined-pulmonary-fibrosis-and-emphysema
#2
Keishi Sugino, Masahiro Kobayashi, Yasuhiko Nakamura, Kyoko Gocho, Fumiaki Ishida, Kazutoshi Isobe, Nobuyuki Shiraga, Sakae Homma
BACKGROUND: Little has been reported on the feasibility of xenon-enhanced dual-energy computed tomography (Xe-DECT) in the visual and quantitative analysis of combined pulmonary fibrosis and emphysema (CPFE). OBJECTIVES: We compared CPFE with idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD), as well as correlation with parameters of pulmonary function tests (PFTs). METHODS: Studied in 3 groups were 25 patients with CPFE, 25 with IPF without emphysema (IPF alone), 30 with COPD...
2017: PloS One
https://www.readbyqxmd.com/read/28107276/the-effect-of-deep-versus-moderate-neuromuscular-block-on-surgical-conditions-and-postoperative-respiratory-function-in-bariatric-laparoscopic-surgery-a-randomized-double-blind-clinical-trial
#3
Sam Baete, Gerd Vercruysse, Margot Vander Laenen, Pieter De Vooght, Jeroen Van Melkebeek, Dimitri Dylst, Maud Beran, Jan Van Zundert, René Heylen, Willem Boer, Sam Van Boxstael, Tom Fret, Hans Verhelst, Cathy De Deyne, Frank Jans, Pascal Vanelderen
BACKGROUND: In recent literature, it has been suggested that deep neuromuscular block (NMB) improves surgical conditions during laparoscopy; however, the evidence supporting this statement is limited, and this was not investigated in laparoscopic bariatric surgery. Moreover, residual NMB could impair postoperative respiratory function. We tested the hypotheses that deep NMB could improve the quality of surgical conditions for laparoscopic bariatric surgery compared with moderate NMB and investigated whether deep NMB puts patients at risk for postoperative respiratory impairment compared with moderate NMB...
January 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28105965/genetic-and-environmental-basis-in-phenotype-correlation-between-physical-function-and-cognition-in-aging-chinese-twins
#4
Chunsheng Xu, Dongfeng Zhang, Xiaocao Tian, Yili Wu, Zengchang Pang, Shuxia Li, Qihua Tan
Although the correlation between cognition and physical function has been well studied in the general population, the genetic and environmental nature of the correlation has been rarely investigated. We conducted a classical twin analysis on cognitive and physical function, including forced expiratory volume in one second (FEV1), forced vital capacity (FVC), handgrip strength, five-times-sit-to-stand test (FTSST), near visual acuity, and number of teeth lost in 379 complete twin pairs. Bivariate twin models were fitted to estimate the genetic and environmental correlation between physical and cognitive function...
February 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28105962/genetic-and-environmental-influences-on-pulmonary-function-and-muscle-strength-the-chinese-twin-study-of-aging
#5
Xiaocao Tian, Chunsheng Xu, Yili Wu, Jianping Sun, Haiping Duan, Dongfeng Zhang, Baofa Jiang, Zengchang Pang, Shuxia Li, Qihua Tan
Genetic and environmental influences on predictors of decline in daily functioning, including forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC), handgrip, and five-times-sit-to-stand test (FTSST), have not been addressed in the aging Chinese population. We performed classical twin modeling on FEV1, FVC, handgrip, and FTSST in 379 twin pairs (240 MZ and 139 DZ) with median age of 50 years (40-80 years). Data were analyzed by fitting univariate and bivariate twin models to estimate the genetic and environmental influences on these measures of physical function...
February 2017: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/28102961/assessing-the-use-of-4dct-ventilation-in-pre-operative-surgical-lung-cancer-evaluation
#6
Yevgeniy Vinogradskiy, Matthew Jackson, Leah Schubert, Bernard Jones, Richard Castillo, Edward Castillo, Thomas Guerrero, John Mitchell, Chad Rusthoven, Moyed Miften, Brian Kavanagh
PURPOSE: A primary treatment option for lung cancer patients is surgical resection. Patients who have poor lung function prior to surgery are at increased risk of developing serious and life-threatening complications after surgical resection. Surgeons use nuclear medicine ventilation-perfusion (VQ) scans along with pulmonary function test (PFT) information to assess a patient's pre-surgical lung function. The nuclear medicine images and pre-surgery PFTs are used to calculate percent predicted postoperative (%PPO) PFT values by estimating the amount of functioning lung tissue that would be lost with surgical resection...
January 2017: Medical Physics
https://www.readbyqxmd.com/read/28100544/oscillatory-whole-body-vibration-improves-exercise-capacity-and-physical-performance-in-pulmonary-arterial-hypertension-a-randomised-clinical-study
#7
Felix Gerhardt, Daniel Dumitrescu, Carina Gärtner, Ralf Beccard, Thomas Viethen, Tilmann Kramer, Stephan Baldus, Martin Hellmich, Eckhard Schönau, Stephan Rosenkranz
OBJECTIVE: In patients with pulmonary arterial hypertension (PAH), supportive therapies may be beneficial in addition to targeted medical treatment. Here, we evaluated the effectiveness and safety of oscillatory whole-body vibration (WBV) in patients on stable PAH therapy. METHODS: Twenty-two patients with PAH (mean PAP≥25 mm Hg and pulmonary arterial wedge pressure (PAWP)≤15 mm Hg) who were in world health organization (WHO)-Functional Class II or III and on stable PAH therapy for≥3 months, were randomised to receive WBV (16 sessions of 1-hour duration within 4 weeks) or to a control group, that subsequently received WBV...
January 18, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28100361/-the-relationship-between-nutritional-status-and-oxidative-stress-markers-pulmonary-function-in-patients-with-stable-chronic-obstructive-pulmonary-disease
#8
X L Jiang, P Zhong, C L Huang, F He, X M Fan, X R Chen
Objective: To investigate the association between the nutritional status of patients with chronic obstructive pulmonary disease (COPD) and the levels of serum oxidative stress markers protein carbonyls (PC), malondialdehyde (MDA), 8-hydroxy-2'-deoxyguanosine (8-OHdG), total antioxidant capacity (TAC) and pulmonary function. Methods: 200 patients with stable COPD (the COPD group) and 100 healthy individuals (the control group) who visited during June 2014 and August 2014 were enrolled in our study. The levels of PC, MDA, 8-OHdG and TAC in serum were detected...
January 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28100360/-end-tidal-pco-2-for-evaluation-of-severity-of-disease-in-idiopathic-pulmonary-arterial-hypertension-and-chronic-thromboembolic-pulmonary-hypertension
#9
X Shi, G L Yang, Y Chen, J Guo, W L Yang, P Yuan, S G Gong, R Jiang, Q H Zhao, L Wang, J He, T X Chen, J M Liu
Objective: To explore the difference in end tidal PCO(2) (P(ET)CO(2)) between idiopathic pulmonary arterial hypertension (IPAH) and chronic thromboembolic pulmonary hypertension (CTEPH), and to analyze the correlation between P(ET)CO(2) and the indexes of disease severity in IPAH and CTEPH patients. Methods: Data were retrieved from 68 IPAH patients and 52 CTEPH patients who all had received right-heart catheterization, pulmonary function test and cardiopulmonary exercise testing at Shanghai Pulmonary Hospital from October 2011 to October 2014...
January 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28100357/-hemoptysis-in-adults-with-bronchiectasis-correlation-with-disease-severity-and-exacerbation-risk
#10
W J Guan, J J Yuan, Y H Gao, H M Li, N S Zhong, R C Chen
Objective: To investigate the association between hemoptysis and disease severity and risks of acute exacerbations in patients with bronchiectasis. Methods: Between September 2012 and January 2014, we recruited 148 patients (56 males, 92 females, mean age: 44.6 years) with clinically stable bronchiectasis, who were classified into hemoptysis group (36 males, 70 females, mean age: 45.6 years) and non-hemoptysis group (20 males, 22 females, mean age: 41.8 years). We inquired the past history, and evaluated chest imaging characteristics, lung function, cough sensitivity assessed using capsaicin cough challenge tests, and airway inflammation...
January 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28100228/association-of-stem-cell-factor-gene-expression-with-severity-and-atopic-state-in-patients-with-bronchial-asthma
#11
Safaa I Tayel, Sally M El-Hefnway, Eman M Abd El Gayed, Gehan A Abdelaal
BACKGROUND: Bronchial asthma is a chronic inflammatory and remodeling disorder of the airways, in which many cells, cellular elements, and cytokines play important roles. Stem cell factor (SCF) may contribute to the inflammatory changes occurring in asthma. We aimed to show the expression of SCF gene in patients with asthma as a means of diagnosis and its association with severity and atopic state in these patients. METHODS: This study was carried out on 80 subjects, 50 asthmatic patients and 30 age and gender matched healthy control persons...
January 18, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28099359/evaluation-of-pulmonary-function-using-single-breath-hold-dual-energy-computed-tomography-with-xenon-results-of-a-preliminary-study
#12
Hiroyuki Kyoyama, Yusuke Hirata, Satoshi Kikuchi, Kosuke Sakai, Yuriko Saito, Shintaro Mikami, Gaku Moriyama, Hisami Yanagita, Wataru Watanabe, Katharina Otani, Norinari Honda, Kazutsugu Uematsu
Xenon-enhanced dual-energy computed tomography (xenon-enhanced CT) can provide lung ventilation maps that may be useful for assessing structural and functional abnormalities of the lung. Xenon-enhanced CT has been performed using a multiple-breath-hold technique during xenon washout. We recently developed xenon-enhanced CT using a single-breath-hold technique to assess ventilation. We sought to evaluate whether xenon-enhanced CT using a single-breath-hold technique correlates with pulmonary function testing (PFT) results...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28095492/growth-hormone-deficiency-is-associated-with-worse-cardiac-function-physical-performance-and-outcome-in-chronic-heart-failure-insights-from-the-t-o-s-ca-ghd-study
#13
Michele Arcopinto, Andrea Salzano, Francesco Giallauria, Eduardo Bossone, Jörgen Isgaard, Alberto M Marra, Emanuele Bobbio, Olga Vriz, David N Åberg, Daniele Masarone, Amato De Paulis, Lavinia Saldamarco, Carlo Vigorito, Pietro Formisano, Massimo Niola, Francesco Perticone, Domenico Bonaduce, Luigi Saccà, Annamaria Colao, Antonio Cittadini
BACKGROUND: Although mounting evidence supports the concept that growth hormone (GH) deficiency (GHD) affects cardiovascular function, no study has systematically investigated its prevalence and role in a large cohort of chronic heart failure (CHF) patients. Aim of this study is to assess the prevalence of GHD in mild-to-moderate CHF and to explore clinical and functional correlates of GHD. METHODS: One-hundred thirty CHF patients underwent GH provocative test with GHRH+arginine and accordingly categorized into GH-deficiency (GHD, n = 88, age = 61...
2017: PloS One
https://www.readbyqxmd.com/read/28094013/pulmonary-outcome-of-esophageal-atresia-patients-and-its-potential-causes-in-early-childhood
#14
René Dittrich, Philippe Stock, Karin Rothe, Petra Degenhardt
INTRODUCTION: The aim of this study was to illustrate the pulmonary long term outcome of patients with repaired esophageal atresia and to further examine causes and correlations that might have led to this outcome. METHODS: Twenty-seven of 62 possible patients (43%) aged 5-20years, with repaired esophageal atresia were recruited. Body plethysmography and spirometry were performed to evaluate lung function, and the Bruce protocol treadmill exercise test to assess physical fitness...
January 3, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28093815/nigella-sativa-supplementation-improves-asthma-control-and-biomarkers-a-randomized-double-blind-placebo-controlled-trial
#15
Abdulrahman Koshak, Li Wei, Emad Koshak, Siraj Wali, Omer Alamoudi, Abdulrahman Demerdash, Majdy Qutub, Peter Natesan Pushparaj, Michael Heinrich
Poor compliance with conventional asthma medications remains a major problem in achieving asthma control. Nigella sativa oil (NSO) is used traditionally for many inflammatory conditions such as asthma. We aimed to investigate the benefits of NSO supplementation on clinical and inflammatory parameters of asthma. NSO capsules 500 mg twice daily for 4 weeks were used as a supplementary treatment in a randomized, double-blind, placebo-controlled trial in asthmatics (clinicaltrials.gov: NCT02407262). The primary outcome was Asthma Control Test score...
January 17, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28093768/short-term-and-long-term-follow-up-of-pulmonary-function-in-patients-with-copd-after-total-laryngectomy-a-prospective-study
#16
Charlotte Schönwald, Maria Isabel Körber, Dirk Beutner, Roman Pfister, Konrad Frank, Orlando Guntinas-Lichius, Guido Michels
OBJECTIVE: There exists no standardized method for examining lung function in laryngectomized patients. STUDY DESIGN AND METHODS: We established a base plate adapter (BPA) system for patients after laryngectomy. In 10 patients with chronic obstructive pulmonary disease (COPD), we evaluated pulmonary function before laryngectomy, as well as 2 weeks and 3 months after laryngectomy. RESULTS: The BPA system was well tolerated and delivered reliable results comparable to measurements with a mouthpiece...
January 17, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28093379/the-epital-care-model-a-new-person-centered-model-of-technology-enabled-integrated-care-for-people-with-long-term-conditions
#17
Klaus Phanareth, Søren Vingtoft, Anders Skovbo Christensen, Jakob Sylvest Nielsen, Jørgen Svenstrup, Gro Karine Rosvold Berntsen, Stanton Peter Newman, Lars Kayser
BACKGROUND: There is worldwide recognition that the future provision of health care requires a reorganization of provision of care, with increased empowerment and engagement of patients, along with skilled health professionals delivering services that are coordinated across sectors and organizations that provide health care. Technology may be a way to enable the creation of a coherent, cocreative, person-centered method to provide health care for individuals with one or more long-term conditions (LTCs)...
January 16, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28092910/effects-of-in-utero-and-postnatal-exposure-to-secondhand-smoke-on-lung-function-by-gender-and-asthma-status-the-seven-northeastern-cities-snec-study
#18
Li-Wen Hu, Mo Yang, Shu Chen, Kuntal Shah, Yismaw Hailegiorgis, Richai Burgens, Michael Vaughn, Jin Huang, Pamela Xaverius, Gunther Paul, Lidia Morawska, Tao Lu, Shao Lin, Shou-Qiang Zhong, Min-Li Kong, Yan-Qi Xie, Yuan-Tao Hao, Xiao-Wen Zeng, Zhengmin Qian, Guang-Hui Dong
BACKGROUND: Little information exists on whether gender or asthma status modifies the effects of secondhand smoke (SHS) exposure on lung function. OBJECTIVE: To evaluate whether gender or asthma status modifies the association of SHS exposure with lung function. METHODS: A total of 6,740 children (average 11.6 years) were recruited from 24 districts of 7 cities in northeast China in 2012. SHS exposure included exposure to environmental and maternal smoking both in utero and during early childhood (postnatal)...
January 17, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28092203/machine-learning-of-three-dimensional-right-ventricular-motion-enables-outcome-prediction-in-pulmonary-hypertension-a-cardiac-mr-imaging-study
#19
Timothy J W Dawes, Antonio de Marvao, Wenzhe Shi, Tristan Fletcher, Geoffrey M J Watson, John Wharton, Christopher J Rhodes, Luke S G E Howard, J Simon R Gibbs, Daniel Rueckert, Stuart A Cook, Martin R Wilkins, Declan P O'Regan
Purpose To determine if patient survival and mechanisms of right ventricular failure in pulmonary hypertension could be predicted by using supervised machine learning of three-dimensional patterns of systolic cardiac motion. Materials and Methods The study was approved by a research ethics committee, and participants gave written informed consent. Two hundred fifty-six patients (143 women; mean age ± standard deviation, 63 years ± 17) with newly diagnosed pulmonary hypertension underwent cardiac magnetic resonance (MR) imaging, right-sided heart catheterization, and 6-minute walk testing with a median follow-up of 4...
January 16, 2017: Radiology
https://www.readbyqxmd.com/read/28090303/genotype-phenotype-effects-of-bmpr2-mutations-on-disease-severity-in-mouse-models-of-pulmonary-hypertension
#20
Andrea L Frump, Arunima Datta, Sampa Ghose, James West, Mark P de Caestecker
More than 350 mutations in the type-2 BMP (bone morphogenetic protein) receptor, BMPR2, have been identified in patients with heritable pulmonary arterial hypertension (HPAH). However, only 30% of BMPR2 mutation carriers develop PAH, and we cannot predict which of these carriers will develop clinical disease. One possibility is that the nature of the BMPR2 mutation affects disease severity. This hypothesis has been difficult to test clinically, given the rarity of HPAH and the complexity of the confounding genetic and environmental risk factors...
December 2016: Pulmonary Circulation
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