Introdução: Transtornos psiquiátricos são comuns em pacientes com doenças pulmonares obstrutivas. Portadores de asma de difícil controle manifestam estes transtornos com freqüência superior àqueles com asma controlada. Entre os pacientes com Doença Pulmonar Obstrutiva Crônica (DPOC) os sintomas de depressão podem estar relacionados à incapacidade progressiva e as limitações das atividades de vida diária. O objetivo do estudo foi verificar a presença de sintomas de ansiedade e depressão entre os portadores de asma e DPOC. Método: Foram avaliados os instrumentos específicos de quantificação de sintomas de ansiedade e depressão, IDATE e BDI respectivamente, respondidos por pacientes do ambulatório de asma e DPOC. A população constitui-se de 189 pacientes selecionados de três grupos de estudo com objetivos terapêuticos diferentes, sendo 140 asmáticos e 49 portadores de DPOC. Entre as variáveis destes estudos constavam sintomas de ansiedade e depressão como parte da metodologia. Os dados obtidos foram comparados levando-se em consideração aspectos demográficos, funcionais e de gravidade. Resultados: Entre os pacientes asmáticos foi significativamente maior a prevalência de ansiedade moderada e grave quando comparados com aqueles com DPOC (p<0,05). Em relação a depressão, o grupo de asma não controlada apresentou resultados significativamente maiores quando comparado ao grupo de asma controlada (p<0,05). Conclusão: Entre os pacientes asmáticos a freqüência de sintomas de ansiedade e depressão foi maior que entre aqueles com DPOC, o que pode dificultar o controle clínico / Introduction: Psychiatric disorders appear to be common in obstructive pulmonary disease patients. Difficult to control asthmatics show higher frequency of these disorders than controlled asthmatics. In Chronic Obstructive Pulmonary Disease (COPD) patients the depression symptoms may be related to progressive disability and limitations in daily living activities. Our objective was to verify the presence of anxiety and depression symptoms between asthmatic and COPD patients. Methods: Evaluation of anxiety and depression symptoms questionnaires, STAI and BDI respectively, from asthmatics and COPD outpatients clinics. It was a comparative study with 189 patients, 140 asthmatics and 49 with COPD. These patients were enrolled in three different treatment protocols: controlled asthmatics, not controlled asthmatics and stable COPD; all studies measured anxiety and depression symptoms in methodology. Data among groups were analyzed and correlated through demographic, functional and gravity aspects. Results: Moderate and severe anxiety symptoms in asthmatics were significantly higher when compared with COPD group (p<0,05). Not controlled asthmatics showed depression values significantly higher when compared with asthma controlled group (p<0,05). Conclusion: This study showed that anxiety and depression symptoms frequency is higher between asthmatics when compared to COPD patients, which may prevent a good clinical control

Submitted by Renata Lopes (renatasil82@gmail.com) on 2016-02-26T14:07:22Z No. of bitstreams: 1 antoniocarlosmaneiragodinhonetto.pdf: 473934 bytes, checksum: a2e5620f93620359b89e694ba7b5b2bf (MD5) / Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2016-03-03T14:05:24Z (GMT) No. of bitstreams: 1 antoniocarlosmaneiragodinhonetto.pdf: 473934 bytes, checksum: a2e5620f93620359b89e694ba7b5b2bf (MD5) / Made available in DSpace on 2016-03-03T14:05:24Z (GMT). No. of bitstreams: 1 antoniocarlosmaneiragodinhonetto.pdf: 473934 bytes, checksum: a2e5620f93620359b89e694ba7b5b2bf (MD5) Previous issue date: 2015-09-23 / A imunocenessência e a diminuição da função pulmonar que ocorrem com o envelhecimento tornam o idoso mais vulnerável as doenças respiratórias obstrutivas crônicas. A dosagem do óxido nítrico exalado (FeNO) na avaliação do processo inflamatório da asma na criança e adulto jovem está bem sedimentado por pesquisas e, apesar de não ser invasivo, ter boa aceitabilidade e apresentar resultados imediatos tem poucos estudos em idosos. Nosso estudo tem como objetivo principal avaliar a possível contribuição do FeNO para o diagnóstico de doenças respiratórias obstrutivas em idosos através de um estudo descritivo transversal onde a amostra foi composta por 202 idosos que frequentam o ambulatório do Hospital Therezinha de Jesus em Juiz de Fora. Passaram pela avaliação de sintomas clínicos através da aplicação do modulo de Asma do teste de ISAAC modificado para o idoso e roteiro para diagnóstico de DPOC baseado nos critérios do estudo GOLD, sendo que, destes, 43 fizeram avaliação da função pulmonar (espirometria) e FeNO. Foi critério de exclusão Idosos que apresentarem Insuficiência cardíaca congestiva classe III e IV, Demência, Parkinson ou sequela de AVC, idosos em uso crônico de corticosteroides sistêmicos ou portadores de doenças que acarretam imunodeficiência, idosos que apresentem contra indicação ao uso de broncodilatadores, tabagistas ou ex-tabagistas que tenham parado de fumar há menos de 1 ano e aqueles que não concordarem em participar do estudo. Dos 202 idosos, 34 apresentaram asma (23 definitiva e 11 provável), 20 contemplaram os critérios para DPOC, 13 tiveram a sobreposição de asma + DPOC e 135 não apresentaram critérios para doença respiratória obstrutiva. Dos 43 idosos que dosaram FeNO, 10 apresentaram resultados alterados (23,2%) e 33 normais (76,7%). A média do valor de FeNO dos pacientes com asma definitiva e provável que fizeram este procedimento foi de 29,2 ppb, enquanto os não asmáticos tiveram uma média de FeNO de 17,5 ppb, com um valor de p=0,002. Os resultados do presente estudo mostram relação evidente dos níveis de FeNO com os sintomas de asma ou diagnóstico prévio de asma no paciente idoso. / Immunosenescence and aging-related decreases of pulmonary function make the elderly more vulnerable to chronic obstructive pulmonary disease (COPD). The usefulness of measurements of the fraction of exhaled nitric oxide (FeNO) has been well documented in evaluations of asthma inflammatory processes in children and young adults. However, few reports have examined FeNO measurements in elderly patients. The main objective of this descriptive cross-sectional study was to assess the contribution of FeNO measurements in the diagnoses of obstructive pulmonary diseases in 202 elderly out patients of the Hospital Teresinha de Jesus in Juiz de Fora, Brazil. The patients’ clinical symptoms were assessed with the International Study of Asthma and Allergies in Childhood (ISAAC) asthma module for elderly patients and the diagnostic routine for COPD, which was based on the Global Initiative for Chronic Obstructive Lung Disease (GOLD) criteria. Of the 202 patients, 43 were subjected to pulmonary function evaluations (spirometry) and FeNO measurements. The exclusion criteria included class III/IV congestive heart insufficiency, dementia, Parkinson’s disease, cerebral vascular accident sequelae, chronic systemic corticosteroid use, immunodeficiency diseases, contraindications for bronchodilator use, smokers or smokers who had stopped smoking forless than one year, and patient refusal to participate. Of the 202 patients, 34 had asthma (23 definite and 11 probable), 20 fit the criteria for COPD, 13 had asthma-COPD overlap, and 135 did not fit the criteria for obstructive pulmonary disease. Of the 43 who were tested for FeNO, 10 showed altered results (23.2%), and 33 showed normal results (76.7%). The FeNO measurements were significantly increased (p = 0.002) in the patients with definite and probable asthma (29.2 parts per billion) compared withn on asthmatic patients (17.5 parts per billion).These results suggested that elderly patients have a significant incidence of asthma-COPD overlap syndrome and that it is important that this syndrome be diagnosed in this population. In addition, this study showed a significant relationship between FeNO values and asthma symptoms or previous asthma diagnoses in elderly patients.

ABSTRACT Nontypable Haemophilus influenzae is a common cause of otitis, sinusitis and conjunctivitis. It is the most common bacterial pathogen associated with chronic obstructive pulmonary disease (COPD). Studies have shown that nonpathogenic Haemophilus haemolyticus are often mistaken for Haemophilus influenzae due to an absent hemolytic reaction on blood agar. Distinguishing H. haemolyticus from H. influenzae is important to prevent unnecessary antibiotic use, and to understand the role of H. influenzae in clinical infections. In this study, PCR-primers for amplifying 16S rDNA sequences were used to set up a method for distinguishing H. haemolyticus from H. influenzae. The aim was to use the method for analyzing apparent H. influenzae strains, to investigate if some strains were in fact H. haemolyticus. However, because of problems with unspecific primerannealing,no conclusions could be drawn regarding misclassification of H. haemolyticus. Moraxella catarrhalis is the second most common bacterial pathogen associated with COPD. It also causes otitis and sinusitis. An important virulence factor of M. catarrhalis is the outer membrane protein Moraxella catarrhalis IgD-binding protein (MID). One part of the protein; MID764-913 , has been shown to function as an adhesin, and this part has been fragmented to further investigate its adhesive properties. The aim of this second, independent study, was to express some of these proteinfragments by cloning in E. coli. The time spent on this project was too short, and no proteins could be expressed duing this period.

Dans ce travail de recherche doctorale, l’IRM des poumons à temps d'écho courts dite UTE (Ultra-short EchoTime) a été utilisée pour détecter le signal RMN du tissu pulmonaire afin de caractériser et étudier des modèlesexpérimentaux de maladies pulmonaires chez les rongeurs (rats et souris). En particulier, la technique radialeUTE a été appliquée pour détecter des biomarqueurs dans des modèles de broncho-pneumopathie chroniqueobstructive (BPCO) induite expérimentalement chez les rongeurs. La détection du signal RMN en provenancedu parenchyme pulmonaire a fourni de précieux indicateurs de la maladie associés à l'élargissement des alvéolespulmonaires et aux processus inflammatoires. De plus, la simplicité de mise en oeuvre de cette technique(absence de synchronisation cardiaque et pulmonaire) permet de réduire les temps d’acquisition et apparait bienadaptée aux études longitudinales. La mesure répétée du centre de l’espace-k à chaque temps de répétition de laséquence a été utilisée pour développer une méthode de post-synchronisation reposant sur la détection desmouvements cardio-respiratoires, et permettant de produire des images sans artefacts de mouvement. / In this work, ultra-short echo time (UTE) MR imaging of the lungs is presented as a way of detecting pulmonaryMRI signal, thus providing an opportunity to develop new imaging tools for the investigation of experimentalmodels of lung diseases in rodents. The UTE imaging technique (TE=450 μs) was implemented on a 4.7 Tscanner and applied to detect indicators of Chronic Obstructive Pulmonary Disease (COPD) inducedexperimentally in rodents. The improved signal detection from the lung parenchyma provided valuable markersof disease associated with airspace enlargement and inflammation. When used to investigate of inflammationspecificity, this technique had advantages when delineating regions of early cellular infiltration into the site ofinflammation. In the case of edematous signal quantification, the UTE technique was explored to improve thereliability of the volumetric measurements. This technique was demonstrated to be of use when easy protocolimplementation (relatively high throughput and low-cost experiments) and longitudinal studies (limitedinterference with physiopathology) are of concern. The repetitive probing of the k-space center with a temporalresolution of the sequence's repetition time achieved with this technique was used to develop a self-gatingmethod which relies on the tracking of cardio-respiratory motions, yielding images free from motion artifacts.

Bakgrund: KOL är en sjukdom som drabbar luftvägarna och lungorna. Sjukdomen kännetecknas av att patienten får ett begränsat luftflöde och den vanligaste riskfaktorn för KOL är tobaksrökning. KOL påverkar hela patientens livsvärld då sjukdomen har både fysisk och psykisk påverkan och patienten är ofta i behov av stöd. För att hantera faktorer som orsakar stress använder människan olika copingstrategier och dessa kan variera beroende på situation, erfarenhet och vilket stöd som finns runt människan. Syfte: Att beskriva copingstrategier hos patienter med KOL och därmed skapa förståelse för dessa patienters behov av stöd. Metod: Studien är en litteraturöversikt där nio artiklar med kvalitativ ansats och en artikel med kvantitativ ansats har analyserats. Resultat: Resultatet presenteras med kategorierna Copingstrategier för att hantera känslor och tankar samt Copingstrategier som fokuserar på förändring. Under dessa kategorier beskrivs KOL- patienters olika copingstrategier i tio underkategorier. Konklusion: Vilka copingstrategier KOL-patienter använder beror på deras livsvärld och vilket socialt och professionellt stöd som finns runt dem. De copingstrategier som fokuserar på förändring är framför allt de som också främjar hälsa men andra copingstrategier är också vanliga då sjukdomen är förknippad med skam och skuld. Sjuksköterskan måste uppmärksamma patienternas copingstrategier och ge dem stöd i att implementera copingstrategier som är hälsofrämjande. / Background: COPD is a disease that affects the airways and the lungs. The disease is characterized by the patient having a limited airflow and the most common risk factor for COPD is tobacco smoke. COPD affects the entire lifeworld of the patient as the disease has both physical and mental impact and the patient is often in need of support. To handle stress-causing factors, people use different coping strategies, and these may vary depending on the situation, experience, and support available around the person. Aim: To describe coping strategies in patients with COPD and thereby create an understanding of these patients need for support. Method: The study is a literature review where nine articles with a qualitative approach and one article with a quantitative approach have been analyzed. Result: The result is presented with the categories Coping strategies for managing emotions and thoughts and Coping strategies that focus on change. In these categories different coping strategies of COPD patients are described in ten subcategories. Conclusion: Which coping strategies COPD-patients use depends on their lifeworld and what social and professional support is available around them. The coping strategies that focus on change are especially those who promote health, but other coping strategies are also common since the disease is associated with shame and guilt. The nurse must pay attention to the patients' coping strategies and provide them with support in implementing coping strategies that promote health.

Les maladies pulmonaires, responsables de 3,1 millions de décès de part le monde représentent un problème majeur de santé publique. En particulier, la fibrose pulmonaire et la broncho-pneumopathie chronique obstructive (BPCO) conduisent à la perte de la fonction pulmonaire. Aucun traitement efficace n’a été identifié à ce jour pour lutter contre ces maladies, la seule alternative étant la transplantation. Au cours de ma thèse, j’ai exploré les mécanismes du développement de ces maladies en utilisant différents modèles chez la souris, soit par l’instillation de nanoparticules de métaux ou de bléomycine, conduisant à l’inflammation et/ou à la fibrose pulmonaire, soit par exposition à la fumée de cigarette provoquant une inflammation. Nous avons montré le rôle de la voie de signalisation IL-33/ST2 dans les réponses inflammatoires induites par les nanoparticules ou la bléomycine et identifié de nouveaux mécanismes de régulation de l’IL-33 au sein des macrophages, différents de ceux décrits pour les cellules épithéliales. Nos résultats indiquent que l’expression intracellulaire de l’IL-33 et de son récepteur ST2, joue un rôle important dans l’inflammation, ainsi que la translocation nucléaire de l’IL-33. D’autre part, mes travaux de thèse ont permis d’identifier le rôle clef du senseur intracytosolique NLRP6 dans l’inflammation provoquée par l’exposition à la fumée de cigarette. Nos résultats indiquent que NLRP6, aux fonctions pulmonaires inexplorées, contrôle l’activation des cellules épithéliales et le recrutement des neutrophiles de façon indépendante de la formation d’un inflammasome mais dépendante de la signalisation par les récepteurs des interférons de type I et III. / Pulmonary diseases are a major health problem with 3.1 million deaths in the worldwide. Among them pulmonary fibrosis and chronic obstructive pulmonary disease (COPD), which occur after repeated lung epithelium injury, are characterized by impaired lung functions. To date, no effective therapy against pulmonary fibrosis and COPD were developed, lung transplantation being the only alternative. During my thesis, I studied the mechanisms leading to disease development using different experimental models in mice in particular by metal dioxide nanoparticles or bleomycin instillation leading to inflammation and/or pulmonary fibrosis, or by cigarette smoke exposure promoting pulmonary inflammation which may lead to emphysema. We show the crucial role of IL-33/ST2 signaling pathway in response to nanoparticles or bleomycine and identify new mechanisms for IL-33 regulation in macrophages which are different from those described in epithelial cells. Our results indicate that intracellular expression of IL-33 and of its receptor ST2, together with nuclear IL-33 translocation, play an important role in inflammatory response to nanoparticles instillation. On the other hand, my thesis work allowed identifying that the cytosolic sensor NLRP6 as a key player in pulmonary inflammation developed upon mouse cigarette smoke exposure. Interestingly, our results show that the receptor NLRP6, whose pulmonary functions are still unexplored, controls epithelial cells activation leading to neutrophils recruitment in the airways, in an inflammasome-independent manner but dependently of type I and III interferon receptors signaling.

Introduction: The participation profile of patients with chronic obstructive pulmonary disease (COPD) in pulmonary rehabilitation (PR) and the effectiveness of a video-based home exercise programme (VBHEP) were investigated using various research methods. Methods: The content analysis of the Move-On-Up exercise video against NICE guidelines and published research was performed. The video was evaluated for its suitability for use in VBHEP through focus groups involving UK population of patients with COPD and respiratory clinicians. Using the data from the content analysis and the focus groups, questionnaire items were synthesised for a national survey of both patients and clinicians. A study examined the relationship between participation in outpatient PR and patient measures of depression (Brief Assessment Depression Card), social support (Duke Social Support Index), multidimensional health locus of control (MHLC) and COPD severity (Medical Research Council dyspnea score). A randomised control trial (RCT) evaluated the effect of combining VBHEP and conventional outpatient PR on walking ability and PR benefit maintenance. The intervention arm received VBHEP concurrently with outpatient PR, while the control arm received only outpatient PR. Outcome measures included: the endurance shuttle walk test (ESWT), quality of life (QoL) (St George's Respiratory Questionnaire- SGRQ), MHLC and a modified Follick's activity diary. Measures were taken before PR, at the fourth and eighth weeks of PR and at six months post-PR. Focus groups were conducted between six and 20 months post-PR to evaluate patients' experience of and adherence to the use of VBHEP. Results: Critical review of 46 RCTs aided evaluation of the video demonstrating that the video content was consistent with both NICE recommendations and published research. The six focus groups that were part of the initial evaluation of the video involved 14 patients and 14 clinicians. The national survey generated responses from 60 patients and 62 clinicians; between 79 and 100% of respondents in each domain of the questionnaire indicated that the video is suitable for use. Fifty-one patients completed the study investigating the profile of patients participating in PR. The results indicated that depression has a moderate and negative statistically significant association with the uptake of PR (p < 0.05). Fifty-seven patients participated in the RCT [mean age 66.51 years (SD 9.96), mean FEV1% predicted 54.51% (SD 10.47)]. The results indicated that the use of VBHEP with outpatient PR has no significant additive effect in improving or maintaining the benefits of walking ability following PR (p<0.05). Seven patients participated in the follow-up focus groups where findings suggested that patients were still participating in VBHEP up to 20 months after it was first prescribed, though the frequency of its use appeared to diminish after PR ended. Conclusion: The Move-On-Up exercise video is suitable for VBHEP in patients with COPD. Patients with COPD and depression are less likely to take up a referral to PR compared to those without depression. The use of VBHEP concurrently with PR has no additive effect in improving or maintaining benefits of walking ability following PR. Adverse social circumstances and disease severity reduce the duration of participation in VBHEP.

Background Chronic Obstructive Pulmonary disease (COPD) is an under-diagnosed disease with a prevalence of approximately 10%, highly dependent on age and smoking habits. Comorbidities are common in COPD and of these, cardiovascular diseases (CVD) are the most common. COPD is the fourth leading cause of death globally, and CVD probably contribute to the high mortality. Within CVD, Ischemic Heart Disease (IHD) is the most common. It is highly clinically relevant to identify signs of ischemic heart disease, other cardiac conditions, and risk factors for CVD in COPD. Electrocardiogram (ECG) is a simple but still major diagnostic tool in clinical cardiology, including disturbances in the electric conduction system and ischemia. Due to the under-diagnosis of COPD, there is limited knowledge regarding the prevalence and prognostic impact of ECG abnormalities in COPD. Arterial stiffness is a risk factor for CVD, which has raised an increased interest, however not evaluated in population based studies of COPD. Aim The overall aim was to describe cardiovascular aspects on COPD, with a specific focus on arterial stiffness, prevalence and prognostic impact of ischemic ECG abnormalities and prolonged QT interval, by comparing subjects with and without obstructive lung function impairment in a population-based cohort. Methods The thesis is based on the Obstructive Lung Disease in Northern Sweden (OLIN) COPD study; a population-based longitudinal cohort study. During the years 2002-2004, all participants in clinical examinations from previously recruited large population-based cohorts were invited to re-examination including spirometry and a structured interview. All subjects with obstructive lung function impairment (n=993) were identified, together with 993 age and sex-matched referents without airway obstruction. The study population (n=1986) has been invited to annual examinations since 2005 including spirometry and structured interview. Papers I-III are based on data from 2005 when electrocardiogram (ECG) was recorded in addition to the basic program. All ECGs were Minnesota coded and QT-time was measured. Paper IV is based data from 2010 when non-invasive measurements of arterial stiffness, assessed as pulse wave velocity (PWV), was added to the program. Spirometric data were classified as normal lung function (NLF), restrictive spirometric pattern (RSP) and airway obstruction (COPD). The following spirometric criteria for COPD were used: post-bronchodilator FEV1/VC&lt;0.70 (papers I-IV, in paper III labelled GOLD-COPD) and lower limit of normal, LLN (LLN-COPD) (paper III). Spirometric classification of COPD severity was based on FEV1 % predicted as a continuous variable or according to the Global Initiative for Obstructive Lung Disease (GOLD), divided into GOLD 1-4. Results The prevalence of ischemic heart disease (IHD), both self-reported and assessed as probable and possible ischemic ECG abnormalities (I-ECG) according to the Whitehall criteria, was similar among subjects with NLF and COPD. The prevalence of both self-reported and probable (I-ECG) according to Whitehall increased by GOLD grade.  Among those with COPD, self-reported IHD was associated with disease severity, assessed as FEV1 % predicted also after adjustment for age and sex (paper I). In both COPD and NLF, those with I-ECG had a higher cumulative mortality over 5 years than those without I-ECG (29.6 vs. 10.6%, p&lt;0.001 and 17.1 vs. 6.3 %, p=0.001). When analysed in a multivariate model, the Mortality Risk Ratio (MRR, 95%CI) was increased for subjects with COPD and I-ECG (2.4, 1.5-3.9), and non-significantly so for NLF with I-ECG (1.65, 0.94-2.90), when compared to NLF without I-ECG.  When analyzed separately among subjects with COPD, the increased risk for death associated with I-ECG persisted independent of age, sex, BMI-class, smoking habits and disease severity assessed as FEV1 % predicted (1.89, 1.20-2.99). The proportion without reported IHD was high among those with I-ECG; 72.4% in NLF and 67.3% in COPD. The pattern was similar also among them; I-ECG was associated with an increased risk for death in COPD and non-significantly so in NLF (paper II). Mean corrected QT-time (QTc) and prevalence of QTc prolongation was higher in RSP than NLF but similar in NLF and GOLD-COPD. The prevalence of borderline as well as prolonged QTc increased by GOLD grade (test for trend p=0.012 for both groups). Of those with GOLD-COPD, 52% fulfilled the LLN-criterion (LLN-COPD). When comparing LLN-COPD and NLF, the pattern was similar as when comparing NLF and GOLD-COPD. The cumulative mortality over 5 years was higher among subjects with borderline and prolonged QTc than those with normal QTc in subjects with GOLD-COPD and LLN-COPD but not in NLF and RSP (paper III). Arterial stiffness, assessed as PWV, was higher in GOLD 3-4 compared to non-COPD (10.52 vs. 9.13 m/s, p=0.042). Reported CVD and age &gt;60 were both associated with significantly higher PWV in COPD as well as in non-COPD. In a multivariate model, GOLD 3-4 remained associated with higher PWV when compared with non-COPD, also when adjusted for sex, age group, smoking habits, blood pressure, reported CVD and pulse rate (paper IV). Conclusion In this population-based study, the prevalence of ischemic ECG abnormalities was similar among subjects with normal lung function and COPD, but increased by disease severity among subjects with COPD. Ischemic ECG abnormalities were associated with an increased mortality among subjects with COPD, independent of common confounders and disease severity, also among those without known heart disease. Whilst the prevalence of QTc prolongation was similar in NLF, COPD and LLN-COPD, it was associated with an increased mortality only in the COPD-groups. ECG is a simple non-invasive method and seems to identify findings of prognostic importance among subjects with COPD. Central arterial stiffness, a known risk factor for cardiovascular disease, was increased among subjects with severe and very severe COPD when compared to subjects without COPD independent of common confounders.

Dans le cadre d’un programme de réhabilitation respiratoire (PRR) chez les patients atteints de BPCO, les sociétés savantes recommandent d’inclure un entrainement des muscles inspiratoires (EMI) chez les patients présentant une diminution objective de la force des muscles inspiratoires. Cette recommandation fait suite à une méta-analyse qui suggère qu’un EMI serait bénéfique lorsque la pression inspiratoire (PI) maximale est inferieure a 60 cm H2O.L’entraînement des muscles améliore la force et l’endurance des muscles inspiratoires, la capacité d’exercice et la dyspnée. Dans la dernière méta-analyse, les auteurs précisent que, dans le cadre d’un PRR, il n’est pas certain que l’EMI améliore davantage la dyspnée par rapport à un PRR seul.La question de départ est la suivante : est-ce que l’EMI au cours d’un PRR permet de diminuer davantage la dyspnée qu’un PRR seul ?Dans la première étude contrôlée randomisée, nous montrons que dans le cadre d’un PRR, l’EMI n’améliore pas davantage la dyspnée, chez des patients avec une force des muscles inspiratoires normale. Cependant, une analyse en sous-groupe tend à montrer que chez les patients plus sévèrement atteints (VEMS<50% théorique), l’EMI permettrait une amélioration plus importante de la dyspnée.La deuxième étude est le plus important essai contrôle randomise à propos de l’effet de l’EMI sur la dyspnée dans le cadre d’un PRR. Dans cette étude trois outils différents sont utilisés afin d’évaluer la dyspnée des patients, dont le questionnaire multidimensionnel MDP. Nous montrons que l’EMI ajoute a un PRR n’apporte pas une amélioration significativement plus importante de la dyspnée en comparaison a un PRR seul. Ainsi l’intérêt clinique de l’EMI dans le cadre d’un PRR semble remis en cause. / During a pulmonary rehabilitation program (PRP) in COPD patients, French and international respiratory societies recommend to include inspiratory muscles training (IMT) in patients with an objective inspiratory muscles weakness. This recommendation follows upon a meta-analysis which suggests that IMT would be beneficial when the maximal Inspiratory pressure (PImax) is lower than 60 cm H2O. IMT improves the strength and the endurance of the inspiratory muscles, the exercise capacity and the dyspnea. In the last meta-analysis, the authors specifies that, when IMT is associated to a PRP, it is not certain that IMT improves more the dyspnea compared with a PRP alone.The initial question of this work is: does IMT during a PRP allow decreasing more the dyspnea than a PRP alone?In the first randomized controlled trial, we show that during a PRP, IMT in COPD patients with normal inspiratory muscles strength does not improve more the dyspnea, compared to a PRP alone. However, an analysis in sub-groups tends to show that in severe or very severe COPD patients (VEMS < 50 % of predictive value), IMT would allow a higher improvement of the dyspnea.The second study is the most important randomized controlled trial about the effect of IMT on the dyspnea during pulmonary rehabilitation. In this study we used three different tools to estimate the dyspnea of the patients, of which the multidimensional Dyspnea Profile questionnaire (MDP). We show that IMT added to a PRP does not improve significantly more dyspnea compared to a PRP alone. So the clinical interest of IMT during a PRP seems questionnable.

Class of 2016 Abstract / Objectives: To assess the relationship between adherence to the Global Initiative for Chronic Obstructive Lung Disease (GOLD) guidelines for the management of chronic obstructive pulmonary disease (COPD) exacerbations and the corresponding 30-day, all-cause readmissions rate in a community hospital. Methods: A retrospective chart review was conducted on patients admitted with the primary diagnosis of a COPD exacerbation. Medications administration records relevant to the GOLD guidelines were examined as separate independent variables in relation to a readmission within 30 days of discharge. Additional factors examined included: demographic data, resident of a long-term care facility, pre-index hospitalization, pulmonary consult, vaccines, length of stay (LOS), discharge medications, and follow-up appointments. Results: Electronic health records of 120 patients were reviewed and divided into non-readmitted patients (n = 65, mean age 73.4 ± 10.1 years), all-cause readmissions (n = 55, mean age 70.15 ± 9.69 years), and COPD-related readmissions (n = 21, mean age 70.7 ± 11.1 years). Patients with heart failure (p = 0.024), a LOS >5 days (p = 0.045), a pre-index hospitalization (p = 0.001), or who were long-term care residents (p = 0.024) experienced more all-cause readmissions. Females experienced less all-cause readmissions (p = 0.035). Significantly more patients with a pre-index hospitalization had a COPD-related readmission (p = 0.027). Lastly, adherence to the GOLD treatment parameters was not significantly different across all groups. Conclusions: COPD is a complex disease and adherence to the GOLD guidelines during an exacerbation is unlikely to significantly impact 30-day readmission rates.