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https://www.readbyqxmd.com/read/28549020/lung-density-and-pulmonary-artery-diameter-are-predictors-of-pulmonary-hypertension-in-systemic-sclerosis
#1
Margreet E Bakker, Maarten K Ninaber, Jan Stolk, Lucia J M Kroft, Anne A Schouffoer, Jeska K de Vries Bouwstra, Suzanne E van Wijngaarden, Berend C Stoel
PURPOSE: The aim was to evaluate computed tomography (CT)-measured pulmonary artery diameter (PAD) and lung density as predictors of pulmonary hypertension (PH) in subjects with systemic sclerosis (SSc). We compared these PAD values with normal values and between SSc subgroups with PH and/or interstitial lung disease (ILD). We investigated whether PAD predicts PH and whether lung densitometry, by using the 85th percentile density value (Perc85) as a measure for ILD, can predict PH. MATERIALS AND METHODS: PAD and Perc85 were measured in axial CT scans and compared between 54 SSc and 76 control subjects...
May 25, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28548989/imaging-adult-patients-with-fontan-circulation
#2
Salil Ginde, Benjamin H Goot, Peter C Frommelt
PURPOSE OF REVIEW: Survival after the Fontan procedure for palliation of single ventricle congenital heart disease has improved. However, adults with Fontan circulation are at risk for several complications including heart failure, thromboembolism, and protein-losing enteropathy. This review discusses the role of noninvasive imaging for surveillance and early detection of anatomic and functional abnormalities of the Fontan circulation that can impact the risk for Fontan failure over time...
May 25, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28548545/mild-chronic-obstructive-pulmonary-disease-why-spirometry-is-not-sufficient
#3
Amany F Elbehairy, Grace Parraga, Katherine A Webb, J Alberto Neder, Denis E O'Donnell
Chronic obstructive pulmonary disease (COPD) - an inflammatory disease of the airways, alveoli and lung microvasculature - is a leading cause of death worldwide. Smokers with milder airway obstruction constitute the majority of patients with this disease. Many studies have shown increased morbidity, activity-related dyspnea, exercise intolerance and mortality in such patients, compared with age-matched healthy populations. Clinical evaluation of symptomatic smokers with ostensibly mild airway obstruction poses a challenge in clinical practice as spirometry can obscure extensive heterogeneous pathophysiological impairment...
May 26, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28547381/purinergic-signalling-links-mechanical-breath-profile-and-alveolar-mechanics-with-the-pro-inflammatory-innate-immune-response-causing-ventilation-induced-lung-injury
#4
REVIEW
Djo Hasan, Paul Blankman, Gary F Nieman
Severe pulmonary infection or vigorous cyclic deformation of the alveolar epithelial type I (AT I) cells by mechanical ventilation leads to massive extracellular ATP release. High levels of extracellular ATP saturate the ATP hydrolysis enzymes CD39 and CD73 resulting in persistent high ATP levels despite the conversion to adenosine. Above a certain level, extracellular ATP molecules act as danger-associated molecular patterns (DAMPs) and activate the pro-inflammatory response of the innate immunity through purinergic receptors on the surface of the immune cells...
May 26, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28546153/impact-of-ventilation-induced-lung-injury-on-the-structure-and-function-of-lamellar-bodies
#5
Scott Milos, Reza Khazaee, Lynda A McCaig, Karen Nygard, Richard B Gardiner, Yi Y Zuo, Cory M Yamashita, Ruud A W Veldhuizen
Alterations to the pulmonary surfactant system have been observed consistently in ventilation-induced lung injury including composition changes and impairments in the surface tension reducing ability of the isolated extracellular surfactant. However, there is limited information about the effects of VILI on the intracellular form of surfactant, the lamellar body. It is hypothesized that VILI leads to alterations of lamellar bodies numbers and function. To test this hypothesis, rats were randomized to one of three groups, non-ventilated controls, control ventilation and high tidal volume ventilation (VILI)...
May 25, 2017: American Journal of Physiology. Lung Cellular and Molecular Physiology
https://www.readbyqxmd.com/read/28544828/acute-aortic-regurgitation-in-the-current-era-of-percutaneous-treatment-pathophysiology-and-hemodynamics
#6
Baris Bugan, Erkan Yildirim, Murat Celik, Uygar Cagdas Yuksel
Aortic regurgitation (AR) is characterized by the backflow of blood from the aorta to the left ventricle. Acute AR typically causes severe pulmonary edema and hypotension, and is a surgical emergency. In chronic AR, however, compensatory mechanisms can clinically compensate for years, with normal left ventricular function and no symptoms. While the hemodynamic mechanisms of chronic AR on the left ventricle are well described, the hemodynamic mechanisms of acute AR are not clear. Most of the literature on acute AR includes either small series or case reports...
January 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/28544706/exhaled-nitric-oxide-pulmonary-function-and-disease-activity-in-children-with-systemic-lupus-erythematosus
#7
Jitladda Deerojanawong, Pitchaya Leartphichalak, Ankanee Chanakul, Suchada Sritippayawan, Rujipat Samransamruajkit
AIM: To determine the association among fractional exhaled nitric oxide (FENO), pulmonary function, and disease activity in children with systemic lupus erythematosus (SLE). METHODS: Children aged 7-18 years, diagnosed with SLE under the criteria of the American Rheumatism Association (revised 2012), were enrolled. All eligible participants had disease activity, FENO, and pulmonary function evaluated and re-evaluated at 6-month follow-up. RESULTS: Twenty-four children (95...
May 22, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28544189/year-in-review-2016-interstitial-lung-disease-pulmonary-vascular-disease-pulmonary-function-paediatric-lung-disease-cystic-fibrosis-and-sleep
#8
REVIEW
Adelle S Jee, Tamera J Corte, Stephen J Wort, Neil D Eves, Claire E Wainwright, Amanda Piper
No abstract text is available yet for this article.
May 25, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28544079/cough-is-less-common-and-less-severe-in-systemic-sclerosis-associated-interstitial-lung-disease-compared-to-other-fibrotic-interstitial-lung-diseases
#9
Jasmine Z Cheng, Pearce G Wilcox, Ian Glaspole, Tamera J Corte, Darra Murphy, Cameron J Hague, Christopher J Ryerson
BACKGROUND AND OBJECTIVE: The objectives of this study were to determine the prevalence and characteristics of cough in idiopathic pulmonary fibrosis (IPF), chronic hypersensitivity pneumonitis (HP) and systemic sclerosis-associated interstitial lung disease (SSc-ILD). METHODS: Cough severity was measured in consecutive patients with IPF (n = 77), HP (n = 32) and SSc-ILD (n = 67) using a 10-cm visual analogue scale (VAS). Dyspnoea and quality of life were measured using established questionnaires...
May 23, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28543872/pai-1-gain-of-function-genotype-factors-increasing-pai-1-levels-and-airway-obstruction-the-gala-ii-cohort
#10
Michael G Sherenian, Seong H Cho, Albert Levin, Jin-Young Min, Sam S Oh, Donglei Hu, Joshua Galanter, Saunak Sen, Scott Huntsman, Celeste Eng, Jose R Rodriguez-Santana, Denise Serebrisky, Pedro C Avila, Ravi Kalhan, Lewis J Smith, Luisa N Borrell, Max A Seibold, L Keoki Williams, Esteban G Burchard, Rajesh Kumar
BACKGROUND: PAI-1 gain of function variants promote airway fibrosis, and are associated with asthma and with worse lung function in subjects with asthma. OBJECTIVE: We sought to determine if the association of a gain-of-function polymorphism in Plasminogen Activator Inhibitor -1 (PAI-1) with airway obstruction is modified by asthma status, and whether any genotype effect persists after accounting for common exposures that increase PAI-1 level. METHODS: We studied 2070 Latino children (8-21y) with genotypic and pulmonary function data from the GALA II cohort...
May 24, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28543309/adenovirus-vector-expressing-keratinocyte-growth-factor-using-cag-promoter-impaired-pulmonary-function-of-elastase-induced-emphysema
#11
Hiroshi Oki, Takuya Yazawa, Yasuko Baba, Yumi Kanegae, Hanako Sato, Seiko Sakamoto, Takahisa Goto, Izumu Saito, Kiyoyasu Kurahashi
Pulmonary emphysema impairs quality of life and increases mortality. Previous studies demonstrated that administration of KGF before elastase instillation prevented pulmonary emphysema in mice. We hypothesized that KGF could improve pulmonary function, and that the therapeutic administration of KGF would restore damaged lungs caused by elastase instillation in an animal model. We constructed KGF expressing adenovirus vector, which prevented bleomycin induced pulmonary fibrosis in the previous study. Adenovirus vector (1...
May 24, 2017: Microbiology and Immunology
https://www.readbyqxmd.com/read/28542364/inspiratory-muscle-activation-increases-with-copd-severity-as-confirmed-by-non-invasive-mechanomyographic-analysis
#12
Leonardo Sarlabous, Abel Torres, José A Fiz, Juana M Martínez-Llorens, Joaquim Gea, Raimon Jané
There is a lack of instruments for assessing respiratory muscle activation during the breathing cycle in clinical conditions. The aim of the present study was to evaluate the usefulness of the respiratory muscle mechanomyogram (MMG) for non-invasively assessing the mechanical activation of the inspiratory muscles of the lower chest wall in both patients with chronic obstructive pulmonary disease (COPD) and healthy subjects, and to investigate the relationship between inspiratory muscle activation and pulmonary function parameters...
2017: PloS One
https://www.readbyqxmd.com/read/28542286/clinical-impact-of-chronic-obstructive-pulmonary-disease-on-non-cystic-fibrosis-bronchiectasis-a-study-on-1-790-patients-from-the-spanish-bronchiectasis-historical-registry
#13
David De la Rosa, Miguel-Angel Martínez-Garcia, Rosa Maria Giron, Montserrat Vendrell, Casilda Olveira, Luis Borderias, Luis Maiz, Antoni Torres, Eva Martinez-Moragon, Olga Rajas, Francisco Casas, Rosa Cordovilla, Javier de Gracia
BACKGROUND: Few studies have evaluated the coexistence of bronchiectasis (BE) and chronic obstructive pulmonary disease (COPD) in series of patients diagnosed primarily with BE. The aim of this study was to analyse the characteristics of patients with BE associated with COPD included in the Spanish Bronchiectasis Historical Registry and compare them to the remaining patients with non-cystic fibrosis BE. METHODS: We conducted a multicentre observational study of historical cohorts, analysing the characteristics of 1,790 patients who had been included in the registry between 2002 and 2011...
2017: PloS One
https://www.readbyqxmd.com/read/28542209/cigarette-smoke-inhibits-lps-induced-fabp5-expression-by-preventing-c-jun-binding-to-the-fabp5-promoter
#14
Deviyani Rao, Anne-Laure Perraud, Carsten Schmitz, Fabienne Gally
Cigarette smoking is the primary cause of chronic obstructive pulmonary disease (COPD) with repeated and sustained infections linked to disease pathogenesis and exacerbations. The airway epithelium constitutes the first line of host defense against infection and is known to be impaired in COPD. We have previously identified Fatty Acid Binding Protein 5 (FABP5) as an important anti-inflammatory player during respiratory infections and showed that overexpression of FABP5 in primary airway epithelial cells protects against bacterial infection and inflammation...
2017: PloS One
https://www.readbyqxmd.com/read/28541599/improvement-of-left-ventricular-diastolic-function-and-left-heart-morphology-in-young-women-with-morbid-obesity-six-months-after-bariatric-surgery
#15
Katarzyna Kurnicka, Justyna Domienik-Karłowicz, Barbara Lichodziejewska, Maksymilian Bielecki, Marta Kozłowska, Sylwia Goliszek, Olga Dzikowska-Diduch, Wojciech Lisik, Maciej Kosieradzki, Piotr Pruszczyk
BACKGROUND: Obesity contributes to left ventricular diastolic dysfunction (LVDD) and may lead to diastolic heart failure. Weight loss (WL) after bariatric surgery (BS) may influence LV morphology and function. Using echocardiography, this study assessed the effect of WL on LV diastolic function (LVDF) and LV and left atrium (LA) morphology 6 months after BS in young women with morbid obesity. METHODS: Echocardiography was performed in 60 women with BMI ≥ 40kg/m², aged 37...
May 25, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28540844/a-6-month-safety-and-efficacy-study-of-fluticasone-propionate-and-fluticasone-propionate-salmeterol-multidose-dry-powder-inhalers-in-persistent-asthma
#16
L Mansfield, G Yiu, A Sakov, S Liu, C Caracta
BACKGROUND: A novel multidose dry powder inhaler (MDPI) that is breath actuated, easy, and intuitive to use has beendeveloped for administering fluticasone propionate (Fp) and Fp/salmeterol (FS). OBJECTIVE: To assess the safety and efficacy of Fp MDPI versus Fp hydrofluoroalkane (HFA) and FS MDPI versus FS dry-powder inhaler (DPI). METHODS: This phase III, 26-week, open-label, active drug-controlled study enrolled subjects 12 years old with persistentasthma...
May 24, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28540802/embolisation-of-pulmonary-radio-frequency-pathway-a-randomised-trial
#17
Jean Izaaryene, Julien Mancini, Guillaume Louis, Kathia Chaumoitre, Jean-Michel Bartoli, Vincent Vidal, Jean-Yves Gaubert
PURPOSE: Pneumothorax is the most common complication following a pulmonary percutaneous radiofrequency ablation (RFA), and thoracic drainages are the most frequent causes of an extended hospital stay. Our main objective was to show that the use of gelatin torpedoes may significantly decrease the number of chest tube placement. MATERIALS AND METHODS: Seventy-three patients were prospectively included in this study and then randomised into two groups: 34 with embolisation and without 39 without embolisation...
April 23, 2017: International Journal of Hyperthermia
https://www.readbyqxmd.com/read/28540230/genital-tuberculosis-current-status-of-diagnosis-and-management
#18
REVIEW
Siddharth Yadav, Prabhjot Singh, Ashok Hemal, Rajeev Kumar
Genitourinary Tuberculosis (GUTB) is the second most common extra-pulmonary manifestation of tuberculosis (Tb) and an isolated involvement of genital organs is reported in 5-30% of the cases. Genital involvement results from primary reactivation of latent bacilli either in the epididymis or the prostate or by secondary spread from the already infected urinary organs. The epididymis are the commonest involved organs affected primarily by a hematogenous mode of spread. Tb is characterized by extensive destruction and fibrosis, thus an early diagnosis may prevent function and organ loss...
April 2017: Translational Andrology and Urology
https://www.readbyqxmd.com/read/28540182/mannose-binding-lectin-mbl-gene-polymorphisms-in-susceptibility-to-pulmonary-tuberculosis-among-the-lur-population-of-lorestan-province-of-iran
#19
Ali Amiri, Toomaj Sabooteh, Farhad Shahsavar, Khatereh Anbari, Flora Pouremadi
OBJECTIVE: Tuberculosis (TB) is caused by infection of Mycobacterium tuberculosis. Host genetic variability is an important determinant of the risk of developing TB in humans. Although the association between MBL polymorphisms and TB has been studied in various populations, the results are controversial. The aim of this study was to investigate mannose-binding lectin (MBL) gene polymorphisms with susceptibility to pulmonary tuberculosis (PTB) in a Lur population of Iran. METHODS: In this case-control study, four functional MBL gene polymorphisms (HL, XY, PQ and AB) were genotyped by using PCR Single Strand Conformation Polymorphism (SSCP) technique in a Lur population living in Lorestan Province, consisting of 100 patients with pulmonary tuberculosis (PTB) age and sex matched 100 healthy controls (HCs)...
June 2017: Genomics Data
https://www.readbyqxmd.com/read/28540092/anti-musk-positive-myasthenic-crisis-in-a-7-year-old-female
#20
Harrison J Matthews, Apisadaporn Thambundit, Brandon R Allen
A seven-year-old African American female with anti-MuSK-positive Juvenile Myasthenia Gravis collapsed while at school from progressively worsening weakness and dyspnea. On initial emergency department presentation, she required 15 liters per minute of supplemental oxygen to maintain oxygen saturation above 92%. Initial pulmonary function tests and venous blood gas led to the decision to place her on noninvasive positive pressure ventilation (NPPV) with BiPAP in the emergency department. Due to worsening hypercarbia, she later required mechanical intubation in the PICU and underwent IVIG therapy followed by plasmapheresis in order to achieve a stable discharge from the hospital...
2017: Case Reports in Emergency Medicine
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