scholarly journals OPPORTUNITIES OF LOW-DOSE DIGITAL FLUOROGRAPHY IN DIAGNOSIS OF PHENOTYPIC VARIANTS OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE

2018 ◽  
Vol 99 (4) ◽  
pp. 191-196
Author(s):  
N. A. Gorbunov ◽  
A. P. Dergilev ◽  
V. I. Kochura ◽  
Ya. L. Manakova ◽  
S. N. Volchenko ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Differential Diagnosis ◽  
Pulmonary Disease ◽  
Optical Density ◽  
Low Dose ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
X Ray ◽  
Average Value ◽  
Lung Emphysema

Objective. To determine the opportunities of low-dose digital fluorography (LDDF) in differential diagnosis of phenotypic variants of chronic obstructive pulmonary disease (COPD).Material and methods. There were 107 patients with clinically diagnosed COPD of varying severity examined. The average age of the patients was 51.8±1.5 years (46–59 years). All patients for LDDF of the chest in the frontal projection in the inspiratory and expiratory phase of respiration were undergone.Results. The electron optical density of the lungs was determined in the upper, middle and lower zones of both lungs. As a result in patients with a predominance of emphysematous variant of COPD (n=15) the most characteristic radiological symptom was lung hyperventilation (14% of 107 patients) and inspiratory electron optical density value was 748.18±4.72 optical density units (ODU). In patients with a predominance of bronchitic variant of COPD (n=43) the most common radiological symptom was the presence of symptom amplification and deformation of lung pattern (40% of 107 patients) and inspiratory electron optical density value was 668.04±12.26 ODU. For patients with mixed phenotypic variant of COPD (n=49) it was characterized by a combination of X-ray symptom amplification and deformation of lung pattern with lung emphysema (46% of 107 patients); the average value of inspiratory electron optical density value was 815.24±17.25 ODU.Conclusion. The technique of LDDF can detect X-ray symptoms and determine inspiratory and expiratory electron optical density of the lungs in patients with COPD that allows optimizing the differential diagnosis of phenotypic variants of chronic obstructive pulmonary disease.

scholarly journals Simultaneous Assessment of Airway Instability and Respiratory Dynamics with Low-Dose 4D-CT in Chronic Obstructive Pulmonary Disease: A Technical Note

Respiration ◽  
2014 ◽  
Vol 87 (4) ◽  
pp. 294-300 ◽  
Author(s):  
Mark O. Wielpütz ◽  
Ralf Eberhardt ◽  
Michael Puderbach ◽  
Oliver Weinheimer ◽  
Hans-Ulrich Kauczor ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Low Dose ◽  
Technical Note ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
4D Ct ◽  
Respiratory Dynamics ◽  
Simultaneous Assessment

The Effects of Oral Almitrine on Pattern of Breathing and Gas Exchange in Patients with Chronic Obstructive Pulmonary Disease

1984 ◽  
Vol 66 (4) ◽  
pp. 435-442 ◽  
Author(s):  
J. R. Stradling ◽  
C. G. Nicholl ◽  
D. Cover ◽  
E. E. Davies ◽  
J. M. B. Hughes ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Gas Exchange ◽  
Pulmonary Disease ◽  
Low Dose ◽  
Statistical Significance ◽  
Chronic Obstructive ◽  
Inspiratory Flow Rate ◽  
Obstructive Pulmonary Disease ◽  
Oxygen Breathing ◽  
Arterial Po2

1. Almitrine at a low dose of 100 mg orally significantly raises Pao2 and lowers Paco2 in patients with chronic obstructive pulmonary disease, compared with placebo, when they were breathing air or 28% oxygen. 2. The estimated ideal alveolar — arterial Po2 difference was less after almitrine compared with placebo, when patients were breathing either air or 28% oxygen. 3. After almitrine overall ventilation breathing air increased by 10% but this did not reach statistical significance. During 28% oxygen breathing almitrine hardly altered overall ventilation but the inspiratory duty cycle (Ti/Ttot.) decreased and mean inspiratory flow rate (VT/Ti) increased compared with placebo. These changes were significant on a paired t-test (P<0.05). 4. Changes in both volume and pattern of breathing may explain the improved gas exchange in the lung after almitrine.

Chronic Obstructive Pulmonary Disease

2014 ◽  
pp. 334-345 ◽  
Author(s):  
John J. Reilly
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Health Care ◽  
Differential Diagnosis ◽  
Pulmonary Disease ◽  
Airflow Obstruction ◽  
Health Care Practitioner ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
Definition Of ◽  
The U.S

Virtually every health care practitioner who provides care to adults will encounter individuals with chronic obstructive pulmonary disease (COPD). Current estimates of the prevalence of the condition vary based on the method of ascertainment: most surveys show that approximately 6% of adults report a doctor's diagnosis of COPD but that approximately 25% have airflow obstruction when assessed by spirometry. COPD is common, morbid, mortal, and expensive: estimates are that 〉20 million U.S. adults have COPD and that it is responsible for 〉120,000 deaths annually with a cost to the U.S. economy of more than $38 billion. This chapter describes the definition of COPD, presenting clinical symptomatology and evaluation, natural history, differential diagnosis, current concepts of pathogenesis, therapeutic options, and the evaluation of a patient with known or suspected COPD considering surgery.

Surface Proteome of Plasma Extracellular Vesicles as Biomarkers for Pneumonia and Acute Exacerbation of Chronic Obstructive Pulmonary Disease

2019 ◽  
Author(s):  
Anna Lena Jung ◽  
Malene Møller Jørgensen ◽  
Rikke Bæk ◽  
Kathrin Griss ◽  
Maria Han ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Differential Diagnosis ◽  
Pulmonary Disease ◽  
Acute Exacerbation ◽  
Extracellular Vesicles ◽  
Cytotoxic T Lymphocyte ◽  
Area Under The Curve ◽  
Chronic Obstructive ◽  
Healthy Controls ◽  
Obstructive Pulmonary Disease

Abstract Background Community-acquired pneumonia (CAP) and acute exacerbation of chronic obstructive pulmonary disease (AECOPD) represent a major burden of disease and death and their differential diagnosis is critical. A potential source of relevant accessible biomarkers are blood-borne small extracellular vesicles (sEVs). Methods We performed an extracellular vesicle array to find proteins on plasma sEVs that are differentially expressed and possibly allow the differential diagnosis between CAP and AECOPD. Plasma samples were analyzed from 21 healthy controls, 24 patients with CAP, and 10 with AECOPD . The array contained 40 antibodies to capture sEVs, which were then visualized with a cocktail of biotin-conjugated CD9, CD63, and CD81 antibodies. Results We detected significant differences in the protein decoration of sEVs between healthy controls and patients with CAP or AECOPD. We found CD45 and CD28 to be the best discrimination markers between CAP and AECOPD in receiver operating characteristic analyses, with an area under the curve >0.92. Additional ensemble feature selection revealed the possibility to distinguish between CAP and AECOPD even if the patient with CAP had COPD, with a panel of CD45, CD28, CTLA4 (cytotoxic T-lymphocyte-associated protein 4), tumor necrosis factor–R-II, and CD16. Conclusion The discrimination of sEV-associated proteins is a minimally invasive method with potential to discriminate between CAP and AECOPD.

Prevalência de sarcopenia na Doença Pulmonar Obstrutiva Crônica: revisão sistemática

2018 ◽  
Vol 8 (4) ◽  
pp. 564-578
Author(s):  
Kelly Roberta Souza Andrade Caria ◽  
Fernanda Warken Rosa Camelier ◽  
Natasha Cordeiro ◽  
Airton Moreira ◽  
Bárbara Silva dos Santos ◽  
...  
Keyword(s):  
Chronic Obstructive Pulmonary Disease ◽  
Pulmonary Disease ◽  
Chronic Obstructive ◽  
Obstructive Pulmonary Disease ◽  
X Ray ◽  
Para Determinar

INTRODUÇÃO: DPOC está associada a um processo inflamatório sistêmico que pode causar sarcopenia, redução da função e massa muscular, embora sua frequência e intensidade não seja completamente conhecida em portadores dessa enfermidade. OBJETIVO: descrever a prevalência e métodos de identificação da sarcopenia na DPOC através de uma revisão sistemática. MATERIAIS E MÉTODOS: Revisão sistemática utilizando a metodologia PICO e palavras-chave (Chronic Obstructive Pulmonary Disease, Sarcopenia). Foram incluídos estudos publicados que estimaram a prevalência de sarcopenia na DPOC. Excluídos aqueles cujo método não detalhou o diagnóstico da sarcopenia. RESULTADOS: A pesquisa resultou inicialmente em 897 artigos. Desses, 877 foram excluídos, sendo 20 selecionados (15 transversais, cinco longitudinais, um caso/controle). As amostras variaram de 57 a 2.582 participantes, a maioria (70%) conduzida em ambulatório. Um estudo foi de base populacional. A idade média foi de 66 anos. A prevalência de sarcopenia na DPOC variou (4,4% a 86,5%). Os métodos diagnósticos utilizados para determinar massa muscular foram o Dual X-ray Absorptiometry, a bioimpedância e as equações de referência. A força muscular foi estimada utilizando-se a preensão manual em dinamômetros portáteis ou a flexão/extensão do joelho através do dinamômetro isocinético. A capacidade funcional foi avaliada pelo teste de caminhada dos seis minutos ou através do teste de velocidade da marcha. CONCLUSÃO: A prevalência de sarcopenia na DPOC encontrada nos estudos (4,4 a 86,5%) é muito variável. Influenciada não somente pela característica do paciente, mas também pelo local, delineamento e método diagnóstico utilizado. Uma padronização de métodos parece ser necessária para se uniformizar condutas na literatura.

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