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"apellidos" => "Morais" ] ] ] ] ] "idiomaDefecto" => "pt" "Traduccion" => array:1 [ "en" => array:9 [ "pii" => "S2173511512000541" "doi" => "10.1016/j.rppnen.2012.06.003" "estado" => "S300" "subdocumento" => "" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:1 [ "total" => 0 ] "idiomaDefecto" => "en" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S2173511512000541?idApp=UINPBA00004E" ] ] "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0873215912000918?idApp=UINPBA00004E" "url" => "/08732159/0000001900000001/v2_201509041433/S0873215912000918/v2_201509041433/pt/main.assets" ] "itemAnterior" => array:19 [ "pii" => "S0873215912001286" "issn" => "08732159" "doi" => "10.1016/j.rppneu.2012.08.002" "estado" => "S300" "fechaPublicacion" => "2013-01-01" "aid" => "117" "copyright" => "Sociedade Portuguesa de Pneumologia" "documento" => "article" "crossmark" => 0 "licencia" => "http://creativecommons.org/licenses/by-nc-nd/4.0/" "subdocumento" => "fla" "cita" => "Rev Port Pneumol. 2013;19:7-12" "abierto" => array:3 [ "ES" => true "ES2" => true "LATM" => true ] "gratuito" => true "lecturas" => array:2 [ "total" => 9122 "formatos" => array:3 [ "EPUB" => 266 "HTML" => 7495 "PDF" => 1361 ] ] "pt" => array:13 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Artigo original</span>" "titulo" => "Estudo da mutação do <span class="elsevierStyleItalic">recetor do fator de crescimento epidérmico</span>, durante 5 anos, numa população de doentes com cancro do pulmão de não pequenas células" "tienePdf" => "pt" "tieneTextoCompleto" => "pt" "tieneResumen" => array:2 [ 0 => "pt" 1 => "en" ] "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "7" "paginaFinal" => "12" ] ] "titulosAlternativos" => array:1 [ "en" => array:1 [ "titulo" => "Epidermal Growth Factor Recetor mutation study for 5 years, in a population of patients with non-small cell lung cancer" ] ] "contieneResumen" => array:2 [ "pt" => true "en" => true ] "contieneTextoCompleto" => array:1 [ "pt" => true ] "contienePdf" => array:1 [ "pt" => true ] "resumenGrafico" => array:2 [ "original" => 0 "multimedia" => array:7 [ "identificador" => "fig0005" "etiqueta" => "Figura 1" "tipo" => "MULTIMEDIAFIGURA" "mostrarFloat" => true "mostrarDisplay" => false "figura" => array:1 [ 0 => array:4 [ "imagen" => "gr1.jpeg" "Alto" => 999 "Ancho" => 2944 "Tamanyo" => 143186 ] ] "descripcion" => array:1 [ "pt" => "<p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">A. Curva de sobrevida global dos doentes mutados versus não mutados (47 vs. 22 meses, p = 0,038).</p> <p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">B. Curva de sobrevida após tratamento com erlotinib em doentes mutados e WT (14 vs. 6 meses, p = 0,003).</p>" ] ] ] "autores" => array:1 [ 0 => array:2 [ "autoresLista" => "A.S. Castro, B. Parente, I. Gonçalves, A. Antunes, A. Barroso, S. Conde, S. Neves, J.C. Machado" "autores" => array:8 [ 0 => array:2 [ "nombre" => "A.S." "apellidos" => "Castro" ] 1 => array:2 [ "nombre" => "B." "apellidos" => "Parente" ] 2 => array:2 [ "nombre" => "I." "apellidos" => "Gonçalves" ] 3 => array:2 [ "nombre" => "A." "apellidos" => "Antunes" ] 4 => array:2 [ "nombre" => "A." "apellidos" => "Barroso" ] 5 => array:2 [ "nombre" => "S." "apellidos" => "Conde" ] 6 => array:2 [ "nombre" => "S." "apellidos" => "Neves" ] 7 => array:2 [ "nombre" => "J.C." "apellidos" => "Machado" ] ] ] ] ] "idiomaDefecto" => "pt" "EPUB" => "https://multimedia.elsevier.es/PublicationsMultimediaV1/item/epub/S0873215912001286?idApp=UINPBA00004E" "url" => "/08732159/0000001900000001/v2_201509041433/S0873215912001286/v2_201509041433/pt/main.assets" ] "en" => array:18 [ "idiomaDefecto" => true "cabecera" => "<span class="elsevierStyleTextfn">Original article</span>" "titulo" => "Severe obstructive disease: Similarities and differences between smoker and non-smoker patients with COPD and/or bronchiectasis" "tieneTextoCompleto" => true "paginas" => array:1 [ 0 => array:2 [ "paginaInicial" => "13" "paginaFinal" => "18" ] ] "autores" => array:1 [ 0 => array:4 [ "autoresLista" => "J. Rezende Gonçalves, M. Corso Pereira, E.M. Figueiras Pedreira De Cerqueira, D. Oliveira Magro, M. Mello Moreira, I.A. Paschoal" "autores" => array:6 [ 0 => array:3 [ "nombre" => "J." "apellidos" => "Rezende Gonçalves" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 1 => array:3 [ "nombre" => "M." "apellidos" => "Corso Pereira" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] ] ] 2 => array:3 [ "nombre" => "E.M." "apellidos" => "Figueiras Pedreira De Cerqueira" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">a</span>" "identificador" => "aff0005" ] ] ] 3 => array:3 [ "nombre" => "D." "apellidos" => "Oliveira Magro" "referencia" => array:1 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] ] ] 4 => array:3 [ "nombre" => "M." 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"apellidos" => "Paschoal" "email" => array:1 [ 0 => "ilma@fcm.unicamp.br" ] "referencia" => array:2 [ 0 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">b</span>" "identificador" => "aff0010" ] 1 => array:2 [ "etiqueta" => "<span class="elsevierStyleSup">*</span>" "identificador" => "cor0005" ] ] ] ] "afiliaciones" => array:2 [ 0 => array:3 [ "entidad" => "Master, University of Campinas – UNICAMP, Campinas, SP, Brazil" "etiqueta" => "a" "identificador" => "aff0005" ] 1 => array:3 [ "entidad" => "PhD, University of Campinas – UNICAMP, Campinas, SP, Brazil" "etiqueta" => "b" "identificador" => "aff0010" ] ] "correspondencia" => array:1 [ 0 => array:3 [ "identificador" => "cor0005" "etiqueta" => "⁎" "correspondencia" => "Corresponding author." ] ] ] ] "titulosAlternativos" => array:1 [ "pt" => array:1 [ "titulo" => "Doença obstrutiva grave: semelhanças e diferenças entre os pacientes fumadores e não-fumadores com DPOC e/ou bronquiectasias" ] ] "textoCompleto" => "<span class="elsevierStyleSections"><span id="sec0005" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Introduction</span><p id="par0005" class="elsevierStylePara elsevierViewall">It is quite clear nowadays that the most frequent cause of chronic and progressive airway disease that leads to chronic respiratory failure is Chronic Obstructive Pulmonary Disease (COPD) related to tobacco use. COPD is diagnosed if poorly reversible airflow obstruction can be demonstrated by spirometry and the exposure to noxious gases is present.</p><p id="par0010" class="elsevierStylePara elsevierViewall">Poorly reversible airflow obstruction is not confined to smokers. Kohansal et al.,<a class="elsevierStyleCrossRef" href="#bib0005"><span class="elsevierStyleSup">1</span></a> in a study about the natural history of chronic airflow obstruction, analyzed the Framingham Offspring cohort, who were followed for 23 years. One third of the individuals, who continued to smoke, developed airflow obstruction during follow-up. But so did 7.4% of never-smoker males and 5.6% of never-smoker females.</p><p id="par0015" class="elsevierStylePara elsevierViewall">The classic work of Fletcher et al.<a class="elsevierStyleCrossRef" href="#bib0010"><span class="elsevierStyleSup">2</span></a> on the natural history of COPD did not include non-smokers and therefore provides no information about the subjects who do not smoke but do have chronic airflow obstruction. In the United States, 20% of the patients who have obstruction in spirometry and 20% of those who die of COPD are non-smokers.<a class="elsevierStyleCrossRefs" href="#bib0015"><span class="elsevierStyleSup">3–6</span></a> Few studies have been performed in this group and little is known about its natural history and clinical course.</p><p id="par0020" class="elsevierStylePara elsevierViewall">Mucus hypersecretion, one of the classic features of COPD, is associated with exacerbations and both situations are related to progressive loss of airflow.<a class="elsevierStyleCrossRefs" href="#bib0035"><span class="elsevierStyleSup">7,8</span></a></p><p id="par0025" class="elsevierStylePara elsevierViewall">On the other hand, patients with hypersecretion unrelated to COPD may present functional and clinical pictures that overlap with chronic bronchitis associated with smoking.<a class="elsevierStyleCrossRef" href="#bib0045"><span class="elsevierStyleSup">9</span></a></p><p id="par0030" class="elsevierStylePara elsevierViewall">In addition to the symptoms and the spirometric changes, other similarities may exist between COPD and bronchiectasis from various causes: the predominant neutrophilic inflammation,<a class="elsevierStyleCrossRef" href="#bib0050"><span class="elsevierStyleSup">10</span></a> the pattern of response to bronchodilators (BD),<a class="elsevierStyleCrossRefs" href="#bib0055"><span class="elsevierStyleSup">11–13</span></a> and the findings on imaging studies.</p><p id="par0035" class="elsevierStylePara elsevierViewall">Having taken this previous data into account we decided to investigate the hypothesis that there are more similarities than differences among patients with severe chronic bronchial disease, regardless of whether they have smoking related COPD or bronchiectasis due to other causes.</p></span><span id="sec0010" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Methods</span><p id="par0040" class="elsevierStylePara elsevierViewall">Patients who attended our referral outpatient clinic for chronic respiratory failure and whose spirometry showed a pre-BD FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>50% of predicted, and FEV<span class="elsevierStyleInf">1</span>/CVF<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>70% were invited to participate in this study. We excluded patients with neuromuscular diseases, thoracic deformities, restrictive lung diseases, pulmonary vascular disease and those who had undergone lung resection.</p><p id="par0045" class="elsevierStylePara elsevierViewall">The study was approved by the Ethics Research Committee of our institution and all participants signed an informed consent form.</p><p id="par0050" class="elsevierStylePara elsevierViewall">Clinical data were gathered from patient files. To assess the degree of breathlessness we used the British MRC (Medical Research Council) questionnaire.<a class="elsevierStyleCrossRef" href="#bib0070"><span class="elsevierStyleSup">14</span></a> All patients underwent spirometry before and after the use of formoterol 12<span class="elsevierStyleHsp" style=""></span>mcg (Foradil<span class="elsevierStyleSup">®</span>, Novartis, Brazil). Forced vital capacity (FVC) and slow vital capacity (VC) curves were performed using a flow spirometer (MicroQuark; COSMED SRL, Rome, Italy) with Brazilian reference values.<a class="elsevierStyleCrossRef" href="#bib0075"><span class="elsevierStyleSup">15</span></a> The six-minute walk test (6MWT) was performed by the patients who had pulse oxymetry (SpO<span class="elsevierStyleInf">2</span>) above 90% at rest and the procedure followed that proposed by ATS.<a class="elsevierStyleCrossRef" href="#bib0080"><span class="elsevierStyleSup">16</span></a> Body mass index (BMI) was determined and the body composition was assessed by the bioimpedance technique (Biodynamics 310, Seattle, WA, USA). All tests were conducted during periods of clinical stability.</p><p id="par0055" class="elsevierStylePara elsevierViewall">To analyze the data we first compared smokers and non-smokers and secondly we identified two groups according to the pattern of response to BD on spirometry.</p><p id="par0060" class="elsevierStylePara elsevierViewall">When comparing smokers and non-smokers we set parameters and cutoff values for each variable: BMI<span class="elsevierStyleHsp" style=""></span>≤<span class="elsevierStyleHsp" style=""></span>21<span class="elsevierStyleHsp" style=""></span>kg/m<span class="elsevierStyleSup">2</span>,<a class="elsevierStyleCrossRefs" href="#bib0010"><span class="elsevierStyleSup">2,17</span></a> MRC<span class="elsevierStyleHsp" style=""></span>><span class="elsevierStyleHsp" style=""></span>1,<a class="elsevierStyleCrossRef" href="#bib0085"><span class="elsevierStyleSup">17</span></a> resting SpO<span class="elsevierStyleInf">2</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>90%, use of long-term oxygen therapy (LTOT), FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>30% of predicted, inspiratory capacity (IC)<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>80% predicted, 6MWD<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>350<span class="elsevierStyleHsp" style=""></span>m,<a class="elsevierStyleCrossRef" href="#bib0085"><span class="elsevierStyleSup">17</span></a> and a drop in SpO<span class="elsevierStyleInf">2</span> during the 6MWT (SpO<span class="elsevierStyleInf">2</span> final–initial)<span class="elsevierStyleHsp" style=""></span>≥<span class="elsevierStyleHsp" style=""></span>4%, which were considered signs of greater severity. For numerical variables [FVC, VC, LM (lean mass) in % of predicted, and lean-to-fat body mass ratio (LM/FM)], we calculated the mean and median of the two groups.</p><p id="par0065" class="elsevierStylePara elsevierViewall">For the analysis of BD response we compared two criteria: ATS/ERS [volume response (FVC) or flow response (FEV<span class="elsevierStyleInf">1</span>) 200<span class="elsevierStyleHsp" style=""></span>ml and 12%],<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a> and the parameters used in the study of Paré et al.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> which were applied only when the increase in FEV<span class="elsevierStyleInf">1</span> or FVC post-BD was at least 12%. According to Paré et al. the volume response is reflected by the presence of ΔFEV<span class="elsevierStyleInf">1</span>/ΔCVF<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>1, and flow response, ΔFEV<span class="elsevierStyleInf">1</span>/ΔCVF<span class="elsevierStyleHsp" style=""></span>><span class="elsevierStyleHsp" style=""></span>1, where Δ means the (post-BD<span class="elsevierStyleHsp" style=""></span>−<span class="elsevierStyleHsp" style=""></span>pre-BD) value.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a></p><p id="par0070" class="elsevierStylePara elsevierViewall">HRCT of the thorax was performed (sections 1.5–2<span class="elsevierStyleHsp" style=""></span>mm thick, 10<span class="elsevierStyleHsp" style=""></span>mm intervals, at maximum inspiration and expiration)<a class="elsevierStyleCrossRef" href="#bib0100"><span class="elsevierStyleSup">20</span></a> and the following CT findings were analyzed: presence of emphysema (centrilobular, paraseptal and panlobular), bronchiectasis, and signs of disease in small airways (air trapping in expiratory scans, tree-in-bud pattern, centrilobular nodules). We also compared the number of lobes affected by bronchiectasis or emphysema.</p><p id="par0075" class="elsevierStylePara elsevierViewall">Variables with normal distribution were analyzed with the Student's <span class="elsevierStyleItalic">t</span>-test. Variables without normal distribution were studied with the Wilcoxon test. Categorical data were compared using Chi-square test or Fisher's exact test when necessary (SAS, version 8, significance with <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>0.05).</p></span><span id="sec0015" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Results</span><p id="par0080" class="elsevierStylePara elsevierViewall">Of the 68 patients enrolled, 37 were being followed with a diagnosis of COPD and 31, of extensive bronchiectasis. Patients were diagnosed with COPD if they had chronic respiratory symptoms related to tobacco exposure of at least 10 pack-years (PY), had no history of previous respiratory disease before smoking and showed spirometric findings compatible with the disease; a patient was diagnosed with bronchiectasis if he/she had never smoked or had had a long history of chronic cough and sputum production which preceded the beginning of tobacco use, with the addition of abnormal findings on HRCT (>2 segments with bronchial dilatations).<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a> The majority of non-smoker patients were diagnosed with bronchiectasis.</p><p id="par0085" class="elsevierStylePara elsevierViewall">Clinical features, spirometric findings and body composition of the two groups are shown in <a class="elsevierStyleCrossRef" href="#tbl0005">Table 1</a>.</p><elsevierMultimedia ident="tbl0005"></elsevierMultimedia><p id="par0090" class="elsevierStylePara elsevierViewall">Among the group with the diagnosis of bronchiectasis, there were ten patients with atypical cystic fibrosis (adults, with late diagnosis and two abnormally elevated sweat chloride concentrations), two with residual lesions from tuberculosis, one with alpha-1-antitrypsin deficiency, one with a history of occupational exposure, and 18 of unknown etiology.</p><p id="par0095" class="elsevierStylePara elsevierViewall">Among 37 COPD patients the CT scans showed some type of emphysema in 29 (78.4%), and bronchiectasis in 18 (48.6%). In the group with the diagnosis of bronchiectasis, 27(87%) had bronchial dilation in more than three lobes and none were found to have emphysema on HRCT scans.</p><p id="par0100" class="elsevierStylePara elsevierViewall">Of 37 COPD patients, 30 were considered current smokers,<a class="elsevierStyleCrossRef" href="#bib0110"><span class="elsevierStyleSup">22</span></a> and seven, non-smokers (had never smoked or smoked less than 10 PY). Among the non-smokers, four had diffuse centrilobular emphysema; one patient reported a lifetime of passive smoking; and two patients had panlobular emphysema.</p><p id="par0105" class="elsevierStylePara elsevierViewall">Irrespective of the diagnosis of the COPD, smokers and non-smokers were compared based on their functional and radiological parameters (<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>). In spirometry, FVC and VC were found significantly smaller in non-smokers (<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>0.001), and there was no significant difference between smokers and non-smokers in FEV<span class="elsevierStyleInf">1</span> and IC. In the assessment of BMI, MRC, SpO<span class="elsevierStyleInf">2</span> at rest, use of LTOT, 6MWD and bioimpedance findings there was no statistically significant difference between groups.</p><elsevierMultimedia ident="tbl0010"></elsevierMultimedia><p id="par0110" class="elsevierStylePara elsevierViewall">HRCT scan findings associated smoking with the presence of centrilobular and paraseptal emphysema (<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>0.001 and 0.017, respectively). More lobes were found with bronchiectasis in non-smokers (<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>0.001) and more lobes with emphysema in smokers (<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>0.001). The signs of small airways disease were more frequently found in non-smokers (<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>0.001).</p><p id="par0115" class="elsevierStylePara elsevierViewall">20 patients met the ATS/ERS criteria for volume responders and 7, for flow responders; by Paré et al.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> 29 patients could be classified as volume responders and 4 patients were flow responders, respectively. Due to the low number of flow responders, only the characteristics of volume responders and non-responders were compared.</p><p id="par0120" class="elsevierStylePara elsevierViewall">There were 18 patients with FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>30% predicted among 29 volume responders and 12 patients with FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>30% predicted among 39 without volume response (<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>0.010), identified by Paré et al.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> criteria.</p><p id="par0125" class="elsevierStylePara elsevierViewall">The analysis of the other clinical parameters, functional measurements, radiological findings and systemic repercussions showed no statistically significant difference between volume responders and non-responders, regardless of the criteria used.</p><p id="par0130" class="elsevierStylePara elsevierViewall">Patients were not compared by diagnosis, COPD or bronchiectasis.</p></span><span id="sec0020" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Discussion</span><p id="par0135" class="elsevierStylePara elsevierViewall">We included in this study patients with obstructive disease, defined by pre-BD FEV<span class="elsevierStyleInf">1</span>/FVC<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>70%, and pre-BD FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>50% predicted, with the aim of evaluating severely ill patients. In the literature a European consensus<a class="elsevierStyleCrossRef" href="#bib0115"><span class="elsevierStyleSup">23</span></a> provides a precedent for our choice as well as relevant recent studies that have used this criteria.<a class="elsevierStyleCrossRefs" href="#bib0110"><span class="elsevierStyleSup">22,24,25</span></a></p><p id="par0140" class="elsevierStylePara elsevierViewall">All subjects included in our study had a post-BD FEV<span class="elsevierStyleInf">1</span>/FVC<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>70% and a post-BD FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>80% predicted, which is in accordance with GOLD diagnostic criteria for COPD.<a class="elsevierStyleCrossRef" href="#bib0130"><span class="elsevierStyleSup">26</span></a></p><p id="par0145" class="elsevierStylePara elsevierViewall">Normal spirometry values following BD were an exclusion criterion and therefore asthmatic patients were not included. It was known beforehand that the two diseases that would show up in this series of patients would be COPD and bronchiectasis, which do have several characteristics in common, such as obstruction not fully reversible with BD.</p><p id="par0150" class="elsevierStylePara elsevierViewall">In our study, patients were considered smokers if they had smoked more than 10 PY.<a class="elsevierStyleCrossRef" href="#bib0110"><span class="elsevierStyleSup">22</span></a></p><p id="par0155" class="elsevierStylePara elsevierViewall">The comparison of smokers and non-smokers with the same degree of lung function compromise (FEV<span class="elsevierStyleInf">1</span>) showed that there were few differences between the groups. There was overlap in all clinical and functional parameters, except for VC and FVC which were significantly smaller in non-smokers. When systemic effects were assessed (BMI, the ratio LM/FM and 6MWT) smoking did not affect the results (<a class="elsevierStyleCrossRef" href="#tbl0010">Table 2</a>).</p><p id="par0160" class="elsevierStylePara elsevierViewall">On HRCT scans, signs of small airway disease were more frequently found in non-smokers (94.3% of the patients, <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>0.001). This finding fits in with the hypothesis that bronchiolitis affecting the airways of under 2<span class="elsevierStyleHsp" style=""></span>mm in diameter is a central event in the pathogenesis of bronchiectasis.<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">27</span></a></p><p id="par0165" class="elsevierStylePara elsevierViewall">Signs of small airway involvement were also frequent in smokers and were found on HRCT scans in 57.6% of them.</p><p id="par0170" class="elsevierStylePara elsevierViewall">In 1950, Reid<a class="elsevierStyleCrossRef" href="#bib0135"><span class="elsevierStyleSup">27</span></a> published a cornerstone study on the pathology of extensive bronchiectasis. One of the most important findings was the reduction of bronchial subdivisions between the hilum and the periphery of the lung. The missing bronchi, whenever their remnants could be identified, were obliterated by fibrous tissue and all the generations of bronchi and small airways that should arise from them had completely disappeared.</p><p id="par0175" class="elsevierStylePara elsevierViewall">Hansell et al.<a class="elsevierStyleCrossRef" href="#bib0140"><span class="elsevierStyleSup">28</span></a> suggest that bronchiolitis is the initial lesion in bronchiectasis.</p><p id="par0180" class="elsevierStylePara elsevierViewall">Roberts et al.<a class="elsevierStyleCrossRef" href="#bib0105"><span class="elsevierStyleSup">21</span></a> evaluated the presence of airflow obstruction in 100 patients with bronchiectasis and also found that the presence and severity of airflow obstruction correlated with the intensity of mosaic attenuation detected on HRCT.</p><p id="par0185" class="elsevierStylePara elsevierViewall">In patients with clinical diagnosis of COPD in our study bronchiectasis was seen in the scans of 18 subjects (48.6%), a finding that is consistent with the literature in patients of equivalent severity of airway obstruction.<a class="elsevierStyleCrossRefs" href="#bib0145"><span class="elsevierStyleSup">29–31</span></a></p><p id="par0190" class="elsevierStylePara elsevierViewall">Taking all this into account the hypothesis that smoking related chronic bronchitis and bronchiectasis share many pathogenic events is not farfetched. In fact, according to Boucher,<a class="elsevierStyleCrossRef" href="#bib0160"><span class="elsevierStyleSup">32</span></a> there are three well known causes of chronic bronchitis: two of them, cystic fibrosis and primary ciliary diskynesia, are genetically determined, and one is acquired after birth by those individuals who are susceptible, and is most commonly related to tobacco exposure. All three conditions compromise the mucociliary transport apparatus and during their course they all may lead to bronchiectasis.</p><p id="par0195" class="elsevierStylePara elsevierViewall">Considering the pattern of response to bronchodilator in patients with severe obstruction, an important finding was that using both criteria (ATS/ERS<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a> and Paré et al.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a>) fewer individuals were considered volume responders by ATS/ERS criteria.</p><p id="par0200" class="elsevierStylePara elsevierViewall">What distinguishes Paré et al.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> criteria is the fact that they do not refer to absolute values; a variation of 12% in FVC and FEV<span class="elsevierStyleInf">1</span> is sufficient for the classification of an individual as a volume or flow responder. For patients like the ones in this study, with baseline volumes that are very low, “small” volume variation may represent a large variation in percentage, without reaching the 200<span class="elsevierStyleHsp" style=""></span>ml required by ATS/ERS.<a class="elsevierStyleCrossRef" href="#bib0090"><span class="elsevierStyleSup">18</span></a></p><p id="par0205" class="elsevierStylePara elsevierViewall">As expected, flow response was not significant in our sample of patients with severe bronchial obstruction.</p><p id="par0210" class="elsevierStylePara elsevierViewall">In addition to detecting a larger number of volume responder patients, Paré et al.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> criteria allowed the demonstration of an association between the severity of obstructive disease, as assessed by FEV<span class="elsevierStyleInf">1</span>, and the volume response (18 patients with FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>30% among 29 volume responders and 12 patients with FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>30% among 39 without volume response, <span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>0.010).</p><p id="par0215" class="elsevierStylePara elsevierViewall">Schermer et al.<a class="elsevierStyleCrossRef" href="#bib0060"><span class="elsevierStyleSup">12</span></a> analyzing BD response in 2210 COPD patients found a positive correlation between ΔFEV<span class="elsevierStyleInf">1</span> and ΔCVF with each stage: ΔFEV<span class="elsevierStyleInf">1</span> declined toward the most severe GOLD stages, while ΔCVF augmented. These findings are in agreement with ours, provided that Paré et al.<a class="elsevierStyleCrossRef" href="#bib0095"><span class="elsevierStyleSup">19</span></a> criteria are applied to the sample.</p></span><span id="sec0025" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Conclusions</span><p id="par0220" class="elsevierStylePara elsevierViewall">In patients with severe obstruction the smoking etiology does not appear to be relevant in determining systemic complications such as hypoxemia, exercise capacity and loss of lean body mass. Bronchiectasis was found in a significant proportion of patients with severe COPD.</p><p id="par0225" class="elsevierStylePara elsevierViewall">Volume response is more common than flow response in patients with severe obstruction. The comparison of two criteria for assessing bronchodilator response showed that Paré et al. criteria are more sensitive than ATS/ERS criteria in identifying volume response in this subgroup of patients. Further studies with a larger number of patients might confirm our findings.</p></span><span id="sec0030" class="elsevierStyleSection elsevierViewall"><span class="elsevierStyleSectionTitle">Conflicts of interest</span><p id="par0230" class="elsevierStylePara elsevierViewall">The authors have no conflicts of interest to declare.</p></span></span>" "textoCompletoSecciones" => array:1 [ "secciones" => array:11 [ 0 => array:2 [ "identificador" => "xres547861" "titulo" => array:6 [ 0 => "Abstract" 1 => "Introduction" 2 => "Objectives" 3 => "Methods" 4 => "Results" 5 => "Conclusions" ] ] 1 => array:2 [ "identificador" => "xpalclavsec565729" "titulo" => "Keywords" ] 2 => array:2 [ "identificador" => "xres547860" "titulo" => array:6 [ 0 => "Resumo" 1 => "Introdução" 2 => "Objetivos" 3 => "Métodos" 4 => "Resultados" 5 => "Conclusões" ] ] 3 => array:2 [ "identificador" => "xpalclavsec565730" "titulo" => "Palavras-chave" ] 4 => array:2 [ "identificador" => "sec0005" "titulo" => "Introduction" ] 5 => array:2 [ "identificador" => "sec0010" "titulo" => "Methods" ] 6 => array:2 [ "identificador" => "sec0015" "titulo" => "Results" ] 7 => array:2 [ "identificador" => "sec0020" "titulo" => "Discussion" ] 8 => array:2 [ "identificador" => "sec0025" "titulo" => "Conclusions" ] 9 => array:2 [ "identificador" => "sec0030" "titulo" => "Conflicts of interest" ] 10 => array:1 [ "titulo" => "References" ] ] ] "pdfFichero" => "main.pdf" "tienePdf" => true "fechaRecibido" => "2012-02-06" "fechaAceptado" => "2012-05-31" "PalabrasClave" => array:2 [ "en" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Keywords" "identificador" => "xpalclavsec565729" "palabras" => array:6 [ 0 => "Airway obstruction" 1 => "Respiratory function tests" 2 => "Bronchitis" 3 => "Bronchiectasis" 4 => "Bronchodilator tests" 5 => "Computed tomography of the thorax" ] ] ] "pt" => array:1 [ 0 => array:4 [ "clase" => "keyword" "titulo" => "Palavras-chave" "identificador" => "xpalclavsec565730" "palabras" => array:6 [ 0 => "Obstrução das Vias Respiratórias" 1 => "Testes de Função Respiratória" 2 => "Bronquite" 3 => "Bronquiectasias" 4 => "Testes de Broncodilatador" 5 => "Tomografia de tórax" ] ] ] ] "tieneResumen" => true "resumen" => array:2 [ "en" => array:2 [ "titulo" => "Abstract" "resumen" => "<span><span class="elsevierStyleSectionTitle">Introduction</span><p id="spar0005" class="elsevierStyleSimplePara elsevierViewall">Poorly reversible airflow obstruction may or may not be related to smoking.</p></span> <span><span class="elsevierStyleSectionTitle">Objectives</span><p id="spar0010" class="elsevierStyleSimplePara elsevierViewall">To describe patients with severe obstructive lung disease including etiology, imaging, functional aspects, systemic manifestations, and the pattern of bronchodilator response.</p></span> <span><span class="elsevierStyleSectionTitle">Methods</span><p id="spar0015" class="elsevierStyleSimplePara elsevierViewall">Sixty-eight patients (age 55.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>13.7 years, FEV<span class="elsevierStyleInf">1</span> [forced expiratory volume in one second] 31.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10.2% predicted) underwent spirometry, evaluation of body mass composition, 6-minute walk test, X-ray, thorax high-resolution CT scanning, and clinical evaluation.</p></span> <span><span class="elsevierStyleSectionTitle">Results</span><p id="spar0020" class="elsevierStyleSimplePara elsevierViewall">Of 68 patients enrolled, 37 had chronic obstructive pulmonary disease (COPD) and 31, extensive bronchiectasis. Among COPD patients the CT scans showed emphysema in 78.4%, and bronchiectasis in 48.6%. There were no significant differences between smokers and non-smokers, except for vital capacity, significantly smaller in non-smokers (<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>0.001). We found 29 and 20 volume responders (VR) according to Paré et al. (FEV<span class="elsevierStyleInf">1</span>/FVC<span class="elsevierStyleHsp" style=""></span>><span class="elsevierStyleHsp" style=""></span>1<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>flow responder or <1<span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>VR) and ATS/ERS criteria, respectively. According to Paré et al. criteria, there were 18 patients with FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>30% predicted among 29 VR, and 12 with FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>30% predicted among 39 without volume response (<span class="elsevierStyleItalic">p</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>0.0101).</p></span> <span><span class="elsevierStyleSectionTitle">Conclusions</span><p id="spar0025" class="elsevierStyleSimplePara elsevierViewall">In patients with severe obstruction, smoking does not appear to be relevant in determining functional or systemic differences, and Paré et al. criteria can detect more VR. Bronchiectasis is a common finding in severe COPD.</p></span>" ] "pt" => array:2 [ "titulo" => "Resumo" "resumen" => "<span><span class="elsevierStyleSectionTitle">Introdução</span><p id="spar0030" class="elsevierStyleSimplePara elsevierViewall">A obstrução das vias respiratórias pouco reversível pode ou não estar relacionada com o tabagismo.</p></span> <span><span class="elsevierStyleSectionTitle">Objetivos</span><p id="spar0035" class="elsevierStyleSimplePara elsevierViewall">Descrever pacientes com doença pulmonar obstrutiva grave, incluindo etiologia, aspectos dos exames de imagem, parâmetros funcionais, manifestações sistémicas, e o padrão da resposta ao broncodilatador.</p></span> <span><span class="elsevierStyleSectionTitle">Métodos</span><p id="spar0040" class="elsevierStyleSimplePara elsevierViewall">Sessenta e oito pacientes (idades de 55,9±13,7 anos, FEV<span class="elsevierStyleInf">1</span> [volume expiratório forçado num segundo] 31,9±10,2% previsto) foram submetidos a espirometria, avaliação da composição de massa corporal, teste de caminhada de 6 minutos, radiografia, tomografia computorizadas (TAC) de alta resolução do tórax, e avaliação clínica.</p></span> <span><span class="elsevierStyleSectionTitle">Resultados</span><p id="spar0045" class="elsevierStyleSimplePara elsevierViewall">Dos 68 pacientes inscritos, 37 sofriam de doença pulmonar obstrutiva crónica (DPOC) e 31 de bronquiectasias extensa. Entre os pacientes com DPOC, as tomografias computadorizadas apresentaram enfisema em 78,4% e bronquietasias em 48,6%. Não existiram diferenças significativas entre os fumadores e os não-fumadores, exceto para a capacidade vital, significativamente inferior nos não-fumadores (p < 0,001). Encontramos 29 respondedores de volume (RV) pelos criterios de Paré et al. (VEF1/CVF > 1= respondedor de fluxo, se > 1 respondedor de volume), e 20 RV pelos criterios da ATS/ERS. De acordo com os critérios de Paré et al., existiam 18 pacientes com FEV<span class="elsevierStyleInf">1</span>< 30% previsto entre os 29 RV, e 12 com FEV<span class="elsevierStyleInf">1</span> < 30% previsto entre os 39 sem resposta a uma prova de volume (p = 0,0101).</p></span> <span><span class="elsevierStyleSectionTitle">Conclusões</span><p id="spar0050" class="elsevierStyleSimplePara elsevierViewall">Em pacientes com obstrução grave, o tabagismo não parece ser relevante na determinação de diferenças funcionais ou sistémicas, e os critérios de Paré et al. podem detetar mais RV. A bronquiectasias é uma descoberta comum em DPOC grave.</p></span>" ] ] "multimedia" => array:2 [ 0 => array:7 [ "identificador" => "tbl0005" "etiqueta" => "Table 1" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "tabla" => array:2 [ "leyenda" => "<p id="spar0060" class="elsevierStyleSimplePara elsevierViewall">All data are expressed as mean<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>sd, except sex.</p><p id="spar0065" class="elsevierStyleSimplePara elsevierViewall">BMI: body mass index; FVC: forced vital capacity; VC: slow vital capacity; FEV1: forced expiratory volume in one second; MM: mean mass.</p>" "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head " align="" valign="top" scope="col" style="border-bottom: 2px solid black"> \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">All patients (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>68) \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">COPD patients (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>37) \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Patients with bronchiectasis (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>31) \t\t\t\t\t\t\n \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Age (years) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">55.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>13.7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">59.8<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10.7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">51.3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>15.5 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Sex (M/F) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">30/38 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">16/21 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">14/17 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">BMI (kg/m<span class="elsevierStyleSup">2</span>) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">24.0<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>5.2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">24.6<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>5.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">23.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>4.69 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">FVC (% predicted) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">53.4<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>15.2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">57.0<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>15.4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">49.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>14.1 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">VC (% predicted) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">59.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>17.4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">65.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>17.7 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">52.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>14.2 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">FVC (L) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">1.82<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.79 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">1.91<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.74 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">1.71<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.84 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">FEV<span class="elsevierStyleInf">1</span> (% predicted) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">31.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10.2 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">30.2<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>9.8 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">34<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10.5 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">FEV<span class="elsevierStyleInf">1</span> (L) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">0.96<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.39 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">0.80<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.38 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">0.93<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>0.41 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Smoking (pack-years) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">23.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>34.4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">40.7<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>38.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">2.1<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>4.8 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">MM (% predicted) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">89.4<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">89.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">88.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>10.5 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab884888.png" ] ] ] ] "descripcion" => array:1 [ "en" => "<p id="spar0055" class="elsevierStyleSimplePara elsevierViewall">Clinical features, spirometric findings and body composition of patients.</p>" ] ] 1 => array:7 [ "identificador" => "tbl0010" "etiqueta" => "Table 2" "tipo" => "MULTIMEDIATABLA" "mostrarFloat" => true "mostrarDisplay" => false "tabla" => array:3 [ "leyenda" => "<p id="spar0075" class="elsevierStyleSimplePara elsevierViewall">FEV1: forced expiratory volume in 1<span class="elsevierStyleHsp" style=""></span>s; FVC: forced vital capacity; VC: slow vital capacity; IC: inspiratory capacity.</p>" "tablatextoimagen" => array:1 [ 0 => array:2 [ "tabla" => array:1 [ 0 => """ <table border="0" frame="\n \t\t\t\t\tvoid\n \t\t\t\t" class=""><thead title="thead"><tr title="table-row"><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Variables \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Non-smokers (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>35) \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black">Smokers (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>33) \t\t\t\t\t\t\n \t\t\t\t</th><th class="td" title="table-head " align="left" valign="top" scope="col" style="border-bottom: 2px solid black"><span class="elsevierStyleItalic">P</span> \t\t\t\t\t\t\n \t\t\t\t</th></tr></thead><tbody title="tbody"><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">FEV<span class="elsevierStyleInf">1</span><span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>30% predicted \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">13/35 (37.1%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">17/33 (51.5%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">0.2329 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Mean FVC in % predicted<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>sd \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">47.3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>13.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">59.9<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>14.4 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top"><0.001 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Mean VC in % predicted<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>sd \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">51.5<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>13.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">67.3<span class="elsevierStyleHsp" style=""></span>±<span class="elsevierStyleHsp" style=""></span>17.5 \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top"><0.001 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">IC<span class="elsevierStyleHsp" style=""></span><<span class="elsevierStyleHsp" style=""></span>80% predicted \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">25/35 (71.4%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">21/33 (63.6%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">0.4924 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Flattened diaphragm (lateral radiographs)<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">12/32 (37.5%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">16/25 (64%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">0.047 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Centrilobular emphysema<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">5/35 (14.3%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">25/32 (78.1%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top"><0.001 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Paraseptal emphysema<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">6/35 (17.1%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">14/32 (43.7%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top">0.017 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Presence of bronchiectasis \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">33/35 (94.3%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">16/33 (48.5%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top"><0.001 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Air trapping or tree in bud or centrilobular nodules<a class="elsevierStyleCrossRef" href="#tblfn0010"><span class="elsevierStyleSup">b</span></a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">33/35 (94.3%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">19/33 (57.6%) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top"><0.001 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Median number of lobes with emphysema<a class="elsevierStyleCrossRef" href="#tblfn0005"><span class="elsevierStyleSup">a</span></a> \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">0.0 (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>35) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">6.0 (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>31) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top"><0.001 \t\t\t\t\t\t\n \t\t\t\t</td></tr><tr title="table-row"><td class="td" title="table-entry " align="left" valign="top">Median number of lobes with bronchiectasis \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">5.0 (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>35) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="left" valign="top">0.0 (<span class="elsevierStyleItalic">n</span><span class="elsevierStyleHsp" style=""></span>=<span class="elsevierStyleHsp" style=""></span>33) \t\t\t\t\t\t\n \t\t\t\t</td><td class="td" title="table-entry " align="char" valign="top"><0.001 \t\t\t\t\t\t\n \t\t\t\t</td></tr></tbody></table> """ ] "imagenFichero" => array:1 [ 0 => "xTab884887.png" ] ] ] "notaPie" => array:2 [ 0 => array:3 [ "identificador" => "tblfn0005" "etiqueta" => "a" "nota" => "<p class="elsevierStyleNotepara">The results indicate the presence of the finding in the group analyzed. 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Year/Month | Html | Total | |
---|---|---|---|
2024 November | 9 | 9 | 18 |
2024 October | 45 | 27 | 72 |
2024 September | 51 | 20 | 71 |
2024 August | 72 | 31 | 103 |
2024 July | 35 | 29 | 64 |
2024 June | 24 | 21 | 45 |
2024 May | 33 | 25 | 58 |
2024 April | 43 | 40 | 83 |
2024 March | 39 | 18 | 57 |
2024 February | 34 | 22 | 56 |
2024 January | 21 | 28 | 49 |
2023 December | 20 | 17 | 37 |
2023 November | 32 | 32 | 64 |
2023 October | 30 | 32 | 62 |
2023 September | 22 | 29 | 51 |
2023 August | 29 | 23 | 52 |
2023 July | 27 | 24 | 51 |
2023 June | 23 | 14 | 37 |
2023 May | 35 | 21 | 56 |
2023 April | 31 | 20 | 51 |
2023 March | 61 | 23 | 84 |
2023 February | 42 | 19 | 61 |
2023 January | 25 | 28 | 53 |
2022 December | 53 | 24 | 77 |
2022 November | 48 | 36 | 84 |
2022 October | 60 | 33 | 93 |
2022 September | 21 | 34 | 55 |
2022 August | 31 | 36 | 67 |
2022 July | 29 | 38 | 67 |
2022 June | 25 | 27 | 52 |
2022 May | 35 | 34 | 69 |
2022 April | 23 | 29 | 52 |
2022 March | 25 | 47 | 72 |
2022 February | 29 | 37 | 66 |
2022 January | 41 | 42 | 83 |
2021 December | 29 | 35 | 64 |
2021 November | 36 | 32 | 68 |
2021 October | 34 | 36 | 70 |
2021 September | 31 | 32 | 63 |
2021 August | 23 | 21 | 44 |
2021 July | 34 | 23 | 57 |
2021 June | 24 | 15 | 39 |
2021 May | 42 | 32 | 74 |
2021 April | 38 | 63 | 101 |
2021 March | 92 | 14 | 106 |
2021 February | 64 | 22 | 86 |
2021 January | 28 | 18 | 46 |
2020 December | 53 | 11 | 64 |
2020 November | 47 | 18 | 65 |
2020 October | 26 | 20 | 46 |
2020 September | 73 | 17 | 90 |
2020 August | 67 | 26 | 93 |
2020 July | 87 | 19 | 106 |
2020 June | 72 | 12 | 84 |
2020 May | 100 | 27 | 127 |
2020 April | 82 | 9 | 91 |
2020 March | 62 | 15 | 77 |
2020 February | 63 | 15 | 78 |
2020 January | 80 | 13 | 93 |
2019 December | 73 | 20 | 93 |
2019 November | 97 | 13 | 110 |
2019 October | 87 | 13 | 100 |
2019 September | 85 | 20 | 105 |
2019 August | 188 | 20 | 208 |
2019 July | 203 | 17 | 220 |
2019 June | 220 | 17 | 237 |
2019 May | 251 | 11 | 262 |
2019 April | 248 | 25 | 273 |
2019 March | 248 | 13 | 261 |
2019 February | 204 | 10 | 214 |
2019 January | 224 | 25 | 249 |
2018 December | 124 | 6 | 130 |
2018 November | 36 | 0 | 36 |
2018 October | 76 | 9 | 85 |
2018 September | 57 | 8 | 65 |
2018 August | 72 | 9 | 81 |
2018 July | 77 | 41 | 118 |
2018 June | 65 | 16 | 81 |
2018 May | 96 | 14 | 110 |
2018 April | 136 | 35 | 171 |
2018 March | 171 | 19 | 190 |
2018 February | 94 | 8 | 102 |
2018 January | 165 | 21 | 186 |
2017 December | 172 | 14 | 186 |
2017 November | 83 | 26 | 109 |
2017 October | 39 | 26 | 65 |
2017 September | 60 | 29 | 89 |
2017 August | 37 | 23 | 60 |
2017 July | 43 | 22 | 65 |
2017 June | 30 | 17 | 47 |
2017 May | 34 | 11 | 45 |
2017 April | 10 | 1 | 11 |
2017 March | 21 | 4 | 25 |
2017 February | 20 | 10 | 30 |
2017 January | 10 | 3 | 13 |
2016 December | 21 | 14 | 35 |
2016 November | 20 | 11 | 31 |
2016 October | 30 | 14 | 44 |
2016 September | 14 | 4 | 18 |
2016 August | 5 | 2 | 7 |
2016 July | 7 | 5 | 12 |
2016 May | 20 | 0 | 20 |
2016 April | 43 | 1 | 44 |
2016 March | 74 | 12 | 86 |
2016 February | 83 | 16 | 99 |
2016 January | 58 | 12 | 70 |
2015 December | 59 | 5 | 64 |
2015 November | 69 | 8 | 77 |
2015 October | 96 | 10 | 106 |
2015 September | 96 | 12 | 108 |
2015 August | 74 | 4 | 78 |
2015 July | 87 | 9 | 96 |
2015 June | 88 | 8 | 96 |
2015 May | 88 | 5 | 93 |
2015 April | 137 | 11 | 148 |
2015 March | 129 | 2 | 131 |
2015 February | 131 | 6 | 137 |
2015 January | 129 | 9 | 138 |
2014 December | 135 | 13 | 148 |
2014 November | 134 | 10 | 144 |
2014 October | 254 | 18 | 272 |
2014 September | 262 | 7 | 269 |
2014 August | 240 | 17 | 257 |
2014 July | 266 | 17 | 283 |
2014 June | 220 | 9 | 229 |
2014 May | 195 | 16 | 211 |
2014 April | 172 | 17 | 189 |
2014 March | 217 | 16 | 233 |
2014 February | 207 | 24 | 231 |
2014 January | 258 | 14 | 272 |
2013 December | 222 | 15 | 237 |
2013 November | 336 | 16 | 352 |
2013 October | 286 | 25 | 311 |
2013 September | 189 | 26 | 215 |
2013 August | 136 | 20 | 156 |
2013 July | 158 | 41 | 199 |
2013 June | 126 | 25 | 151 |
2013 May | 109 | 35 | 144 |
2013 April | 100 | 55 | 155 |
2013 March | 89 | 51 | 140 |
2013 February | 97 | 46 | 143 |
2013 January | 112 | 39 | 151 |