Detection of Alpha-1 Antitrypsin Levels in Chronic Obstructive Pulmonary Disease in Respiratory Clinics in Spain: Results of the EPOCONSUL 2021 Audit.

BACKGROUND: Alpha-1 antitrypsin deficiency (AATD) is an underdiagnosed condition despite being one of the most common inherited disorders in adults that is associated with an increased risk of developing chronic obstructive pulmonary disease (COPD). The aim was to evaluate the frequency of performing AAT levels and associated factors in COPD patients in an audit conducted in 2021-2022, as well as to compare with a previous audit conducted in 2014-2015. METHODS: EPOCONSUL 2021 is a cross-sectional audit that evaluated the outpatient care provided to COPD patients in respiratory clinics in Spain based on available data from medical registries. RESULTS: 4225 patients with a diagnosis of COPD from 45 centers were audited in 2021. A total of 1670 (39.5%) patients underwent AAT determination. Being treated at a specialized COPD outpatient clinic (OR 1.88, p = 0.007), age ≤ 55 years old (OR 1.84, p = 0.007) and a FEV1 < 50% (OR 1.86, p < 0.001) were associated with a higher likelihood of being tested for AAT, while Charlson index ≥ 3 (OR 0.63, p < 0.001) and genotyping of AATD availability (OR 0.42, p < 0.001) showed a statistically significant negative association. The analysis of cases included in respiratory units that participated in both audits showed an increase in the proportion of cases with AAT serum level testing available (adjusted OR 2.81, p < 0.001). The percentage of individuals with serum AAT levels < 60 mg/dL (a severe AATD) was 4%. CONCLUSIONS: Our analysis identifies significant improvements in adherence to the recommendation to test AAT levels in COPD patients, performed in 4 out of 10 patients, being more likely at younger ages and with higher COPD severity, and with a detection of severe AATD of 4% among those tested, suggesting that clinicians still perform AAT testing in COPD patients selectively. Therefore, efforts are still needed to optimize AATD screening and establish new early detection strategies to reduce morbidity and mortality in these patients.

Inhaled Maintenance Therapy in the Follow-Up of COPD in Outpatient Respiratory Clinics. Factors Related to Inhaled Corticosteroid Use. EPOCONSUL 2021 Audit

Objective: The aim of this analysis was to describe the patterns of inhaled maintenance therapy according to risk level and to explore the determinants associated with the decision to prescribe inhaled corticosteroids (ICS) in addition to bronchodilator therapy according to risk level as strategy in the follow-up of COPD in daily clinical practice. Methods: EPOCONSUL 2021 is a cross-sectional audit that evaluated the outpatient care provided to patients with a diagnosis of chronic obstructive pulmonary disease (COPD) in respiratory clinics in Spain with prospective recruitment between April 15, 2021 and January 31, 2022. Results: 4225 patients from 45 hospitals in Spain were audited. Risk levels were analyzed in 2678 patients. 74.5% of patients were classified as high risk and 25.5% as low risk according to GesEPOC criteria. Factors associated with the prescription of ICS in low-risk COPD were symptoms suggestive of asthma [OR: 6.70 (3.14–14.29), p<0.001], peripheral blood eosinophilia>300mm3 [OR: 2.16 (1.10–4.24), p=0.025], and having a predicted FEV1%<80% [OR: 2.17 (1.15–4.08), p=0.016]. In high-risk COPD, factors associated with triple therapy versus dual bronchodilator therapy were a mMRC dyspnea score of ≥2 [OR: 1.97 (1.41–2.75), p<0.001], symptoms suggestive of asthma [OR: 6.70 (3.14–14.29), p<0.001], and a predicted FEV1%<50% [OR: 3.09 (1.29–7.41), p<0.011]. Conclusions: Inhaled therapy in the follow-up of COPD does not always conform to the current guidelines. Few changes in inhaled therapy are made at follow-up visits. The use of ICS is common in COPD patients who meet low-risk criteria in their follow-up and triple therapy in high-risk COPD patients is used as an escalation strategy in patients with high clinical impact. However, a history of exacerbations and eosinophil count in peripheral blood were not factors predicting triple therapy. (AU)

Recommendations for the Implementation of the Self-Administration of Alpha-1 Antitrypsin.

Purpose: Administration of exogenous alpha-1 antitrypsin (AAT) is the only specific therapy for the management of pulmonary morbidity in patients with AAT deficiency. It requires weekly or biweekly intravenous infusions, which may impact patient independence and quality of life. Self-administration of AAT therapy is an alternative to reduce the burden for patients who require AAT therapy. We presented herein experts' recommendations for the implementation of a program for the self-administration of AAT. Methods: This project was conducted using a modified nominal group technique and was undertaken in two online meetings involving the participation of 25 experts: specialists in pulmonology (n=17), nurses (n=5) and hospital pharmacists (n=3). Results: The following issues were discussed, and several recommendations were agreed upon on the following topics: a) patient profile and clinical evaluation, establishing selection criteria that should include clinical as well as social criteria; b) role of health care professionals, suggested roles for specialists in pulmonology, nurses, and hospital pharmacists; c) training by the nurse, including recommendations before initiating the training and the content of the training sessions; and d) logistic issues and follow-up, adherence, and patient support. Conclusion: We expect this proposal to increase awareness of this therapeutic alternative and facilitate the implementation of self-administration programs, thus contributing to optimizing the patient experience with AAT therapy. Further research on the outcomes of these programs, especially from the patient perspective, will also help to improve their design and implementation.

Inhaled Maintenance Therapy in the Follow-Up of COPD in Outpatient Respiratory Clinics. Factors Related to Inhaled Corticosteroid Use. EPOCONSUL 2021 Audit.

OBJECTIVE: The aim of this analysis was to describe the patterns of inhaled maintenance therapy according to risk level and to explore the determinants associated with the decision to prescribe inhaled corticosteroids (ICS) in addition to bronchodilator therapy according to risk level as strategy in the follow-up of COPD in daily clinical practice. METHODS: EPOCONSUL 2021 is a cross-sectional audit that evaluated the outpatient care provided to patients with a diagnosis of chronic obstructive pulmonary disease (COPD) in respiratory clinics in Spain with prospective recruitment between April 15, 2021 and January 31, 2022. RESULTS: 4225 patients from 45 hospitals in Spain were audited. Risk levels were analyzed in 2678 patients. 74.5% of patients were classified as high risk and 25.5% as low risk according to GesEPOC criteria. Factors associated with the prescription of ICS in low-risk COPD were symptoms suggestive of asthma [OR: 6.70 (3.14-14.29), p<0.001], peripheral blood eosinophilia>300mm3 [OR: 2.16 (1.10-4.24), p=0.025], and having a predicted FEV1%<80% [OR: 2.17 (1.15-4.08), p=0.016]. In high-risk COPD, factors associated with triple therapy versus dual bronchodilator therapy were a mMRC dyspnea score of ≥2 [OR: 1.97 (1.41-2.75), p<0.001], symptoms suggestive of asthma [OR: 6.70 (3.14-14.29), p<0.001], and a predicted FEV1%<50% [OR: 3.09 (1.29-7.41), p<0.011]. CONCLUSIONS: Inhaled therapy in the follow-up of COPD does not always conform to the current guidelines. Few changes in inhaled therapy are made at follow-up visits. The use of ICS is common in COPD patients who meet low-risk criteria in their follow-up and triple therapy in high-risk COPD patients is used as an escalation strategy in patients with high clinical impact. However, a history of exacerbations and eosinophil count in peripheral blood were not factors predicting triple therapy.

Smoking and COPD Knowledge in the General Spanish Population: A CONOCEPOC Study.

BACKGROUND: The objective of this analysis is to evaluate tobacco use and the level of chronic obstructive pulmonary disease (COPD) knowledge among the general adult population in Spain and to compare these results to those obtained in the 2011 survey. METHODS: A cross-sectional, observational, epidemiological study was conducted by telephone interviews and stratified by sex, age, and setting. The study design was identical to that of the study conducted in 2011. RESULTS: Of a total of 89,601 phone contacts, there were 6534 respondents. The average age was 61.5 years. With respect to smoking, 30.9% reported being former smokers and 14.7% were current smokers, 63.6% of whom reported having attempted to quit. Among the current smokers, 19.7% claimed to use electronic cigarettes, although 88% believe these pose a health risk. No significant differences were found in smoking prevalence or frequency of attempts to quit according to residential setting (rural/urban). The highest prevalence of current smoking in men was recorded in the 55-64 years age range (31.6%), while in women it was from 45 to 54 years (34.6%). Smoking has decreased with respect to 2011, from 21.1% to 16.1% in men and from 17.9% to 13.2% in women, with a clear variability according to region. Of the population surveyed, 32.5% had spontaneous knowledge about COPD, with significant geographic variability. The most frequent sources of information about the disease were social media and the Internet (39.6%), followed by the media (35.2%). CONCLUSIONS: The prevalence of tobacco use in adults has considerably decreased and there is greater knowledge about COPD in Spain, although there is significant variability according to region, which could explain the geographic variability in the prevalence of COPD. Strategies are needed to increase COPD education and awareness and to reinforce smoking prevention measures among women.

Variations in Chronic Obstructive Pulmonary Disease Outpatient Care in Respiratory Clinics: Results From the 2021 EPOCONSUL Audit.

INTRODUCTION: The aim of our work has been to describe the results of the clinical audit carried out in 2021 and to compare the results with 2015 EPOCONSUL audit. METHODS: EPOCONSUL 2021 is a cross-sectional audit that evaluated the outpatient care provided to patients with a diagnosis of chronic obstructive pulmonary disease (COPD) in respiratory clinics in Spain with prospective recruitment between April 15, 2021, and January 31, 2022. RESULTS: A total of 45 hospitals participated in the 2021 audit and 4.225 clinical records of patients were evaluated. Clinical phenotype according to the Spanish National Guidelines for COPD care (GesEPOC) was reported in 63.1% of the audited patients, and the COPD type assessment for the Global initiative for chronic Obstructive Lung Disease (GOLD) was present in 38.3%. There was an improved compliance with clinical practice guideline (CPG) recommendations in the 2021 audit with respect to the 2015 audit. There was an increase in the proportion of cases with alfa-1-antitrypsin serum level testing available (audit 1: 18.9%; audit 2: 38.7%, p<0.001) and 6-min walk test carried out (audit 1: 24%; audit 2: 45.2%, p<0.001). However, these significant variations adherence to CPG recommendations were not reached for the clinical evaluation and therapeutic intervention category when adjusting for patient and resource variables. CONCLUSIONS: The 2021 EPOCONSUL audit showed increased adherence to recommendations although they seem to be related to the availability of resources for care. These results should be taken into account in order to establish improvements in resources to achieve a better quality of care.

Alterations in the immune system persist after one year of convalescence in severe COVID-19 patients.

Introduction: Severe COVID-19 originates a myriad of alterations in the immune system during active disease, especially in the T and NK cell compartments, but several studies in the last year have unveiled some alterations that persist in convalescence. Although most of the studies follow the participants for a short recovery time, studies following patients up to three or six months still find alterations. We aimed at evaluating changes in the NK, T and B cell compartments after severe COVID-19 in participants with a median recovery time of eleven months. Methods: Eighteen convalescent of severe COVID-19 (CSC), 14 convalescent of mild COVID-19 (CMC) and nine controls were recruited. NKG2A, NKG2C, NKG2D and the activating receptor NKp44 were evaluated in NKbright, NKdim and NKT subpopulations. In addition, CD3 and CD19 were measured and a basic biochemistry with IL-6 levels was obtained. Results: CSC participants showed lower NKbright/NKdim ratio, higher NKp44 expression in NKbright subpopulations, higher levels of serum IL-6, lower levels of NKG2A+ T lymphocytes and a trend to a lower expression of CD19 in B lymphocytes compared to controls. CMC participants showed no significant alterations in the immune system compared to controls. Conclusions: These results are concordant with previous studies, which find alterations in CSC weeks or months after resolution of the symptoms, and point to the possibility of these alterations lasting one year or more after COVID-19 resolution.

Severe COVID-19 Illness and α1-Antitrypsin Deficiency: COVID-AATD Study.

BACKGROUND: Epidemiologic studies have reported that the geographical distribution of the prevalence of allelic variants of serine protein inhibitor-A1 (SERPINA1) and severe cases of COVID-19 were similar. METHODS: A multicenter, cross-sectional, observational study to evaluate the frequency of alpha-1 antitrypsin deficiency (AATD) in patients with COVID-19 and whether it was associated with having suffered severe COVID-19. RESULTS: 2022 patients who had laboratory-confirmed SARS-CoV-2 infection. Mutations associated with AATD were more frequent in severe COVID versus non-severe (23% vs. 18.8%, p = 0.022). The frequency of Pi*Z was 37.8/1000 in severe COVID versus 17.5/1000 in non-severe, p = 0.001. Having an A1AT level below 116 was more frequent in severe COVID versus non-severe (29.5% vs. 23.1, p = 0.003). Factors associated with a higher likelihood of severe COVID-19 were being male, older, smoking, age-associated comorbidities, and having an A1AT level below 116 mg/dL [OR 1.398, p = 0.003], and a variant of the SERPINA1 gene that could affect A1AT protein [OR 1.294, p = 0.022]. CONCLUSIONS: These observations suggest that patients with AATD should be considered at a higher risk of developing severe COVID-19. Further studies are needed on the role of A1AT in the prognosis of SARS-CoV-2 infection and its possible therapeutic role.

COVID-19's impact on care practice for alpha-1-antitrypsin deficiency patients.

BACKGROUND: Patients with alpha-1 antitrypsin deficiency (AATD), commonly categorized as a rare disease, have been affected by the changes in healthcare management brought about by COVID-19. This study's aim was to identify the changes that have taken place in AATD patient care as a result of the COVID-19 pandemic in Spain and to propose experts' recommendations aimed at ensuring humanized and quality care for people with AATD in the post-pandemic situation. METHODS: A qualitative descriptive case study with a holistic single-case design was conducted, using focus groups with experts in AATD clinical management, including 15 health professionals with ties to the Spanish health system (12 pneumologists and 2 hospital pharmacists from 11 different hospitals in Spain) and 1 patient representative. RESULTS: COVID-19 has had a major impact on numerous aspects of AATD clinical patient management in Spain, including diagnostic, treatment, and follow-up phases. The experts concluded that there is a need to strengthen coordination between Primary Care and Hospital Care and improve the coordination processes across all the organizations and actors involved in the healthcare system. Regarding telemedicine and telecare, experts have concluded that it is necessary to promote this methodology and to develop protocols and training programs. Experts have recommended developing personalized and precision medicine, and patient participation in decision-making, promoting self-care and patient autonomy to optimize their healthcare and improve their quality of life. The possibility of monitoring and treating AATD patients from home has also been proposed by experts. Another result of the study was the recommendation of the need to ensure that plasma donations are made on a regular basis by a sufficient number of healthy individuals. CONCLUSION: The study advances knowledge by highlighting the challenges faced by health professionals and changes in AATD patient management in the context of the COVID-19 pandemic. It also proposes experts' recommendations aimed at ensuring humanized and quality care for people with AATD in the post-pandemic situation. This work could serve as a reference study for physicians on their daily clinical practice with AATD patients and may also provide guidance on the changes to be put in place for the post-pandemic situation.

Association of anti-SARS-COV-2 vaccine with increased incidence of myositis-related anti-RNA-synthetases auto-antibodies.

Introduction: SARS-CoV-2 is a RNA virus that associates with heterogeneous clinical manifestations and complications. Auto-antibodies are identified in approximately 50% of hospitalized COVID-19 patients. Objectives: To determine the global incidence of myositis-related auto-antibodies (non Jo1-RNA synthetases: anti-PL7, anti-PL12, anti-EJ, anti-OJ and RNA-sensor: anti-MDA5) in our laboratory during COVID-19 pandemics, and to describe the clinical and laboratory features of these patients. Study design: A retrospective study was performed from 2015 to 2021 in a cohort of 444 patients with suspected inflammatory myopathy. The incidence of positive results for the MSA was expressed as absolute value per year for the reference population. Immunoblot analysis, indirect immunofluorescence and HLA typing of 36 patients with positivity for MSAs were collected and analyzed. Results: We observed MSA positive in 28 patients in 2020 and 36 patients in 2021, representing a mean increase of 6-fold respect to previous years since 2015 (range, 0 to 19). In 2020, the most common antibody detected was anti-MDA5 (68%). In contrast, in 2021 the most common antibodies were anti-PL7 and/or anti-PL12 (69%). All patients in 2021 with positive anti-synthetases were fully vaccinated, 4 had previous documented infection, with median time from vaccine to MSA positivity of 5 months. Eight out of 36 patients (22%) reported clinical onset after SARS-CoV-2 vaccination and 6 out of 36 (17%) presented clinical and/or radiological worsening after SARS-CoV-2 vaccination. All patients presented with a known human leukocyte antigen (HLA)-DRB1* allele associated with ASS. The most prevalent alleles identified were DRB1*03:01, DRB1*04, DRB1*11:01, corresponding to 70% (16/23) of our cohort. Conclusions: Our preliminary data show an increased incidence of anti-synthetase antibodies during COVID-19 pandemic and SARS-CoV-2 vaccination associated to HLA DRB1* risk allele. Differential profiles of MSA specificities were observed: mainly against RNA-sensors in 2020 and against RNA-synthetases in 2021. Further studies are needed to support the association between SARS-CoV-2 infection and/or vaccination and the occurrence of this autoimmune syndrome.

Determinants in the Underdiagnosis of COPD in Spain-CONOCEPOC Study.

Factors such as seeking medical attention for respiratory symptoms and health professionals ordering spirometry come into play in the underdiagnosis of chronic obstructive pulmonary disease (COPD). The objective of this study was to analyze seeking medical attention and the use of spirometry in individuals with chronic respiratory symptoms and to compare these results with those obtained in the 2005 and 2011 surveys. Material and Methods: A cross-sectional, observational, epidemiological study was conducted via phone interview in December 2020 in Spain, with a representative sample from 17 autonomous communities. The study design was identical to that of the studies carried out in 2005 and 2011 to evaluate the changes that have occurred in seeking medical attention and performing spirometry in Spain, as well as the variability between autonomous communities. Results: From 89,601 phone contacts, a total of 6534 respondents were obtained. A total of 24.8% reported having some chronic respiratory symptom, and 17.9% reported a respiratory disease. Only 51.6% of those who had some chronic respiratory symptom had seen their doctor, which was less likely among current smokers (OR: 0.599, 95% CI: 0.467−0.769, p < 0.001) and those living in a rural setting (OR: 0.797, 95% CI: 0.651−0.975, p = 0.027). A total of 68.7% of the individuals who saw a doctor reported having undergone spirometry, most frequently males (OR: 1.535, 95% CI: 2.074−1.136, p < 0.005), former smokers (OR: 1.696, 95% CI: 2.407−1.195, p < 0.003), and those seen by a pulmonologist (OR: 6.151, 95% CI: 8.869−4.265, p < 0.001). With respect to the 2005 survey, more frequent use of spirometry has been observed (42.6 vs. 68.7%), without any change in seeking medical attention for respiratory symptoms. There is a clear variability according to the autonomous community (p < 0.05). Conclusions: Many individuals with chronic respiratory symptoms do not seek medical attention and although the use of spirometry has increased in the past 15 years, it is still an important area that needs improving in the primary care setting, especially among women. Both of these factors can be determinants in the underdiagnosis of COPD and its variability between autonomous communities.

Long-term Outcomes and Recovery of Patients who Survived COVID-19: LUNG INJURY COVID-19 Study.

Background: LUNG INJURY COVID-19 (clinicaltrials.gov NCT 21/399-E) is a registry-based prospective observational cohort study to evaluate long-term outcomes and recovery 12 months after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection according to severity. Methods: Three hundred five coronavirus disease 2019 (COVID-19) survivors were included (moderate, 162; severe, 143). Twelve months after SARS-CoV-2 infection, there was resolution of respiratory symptoms (37.9% in severe vs 27.3% in moderate pneumonia; P = .089). Results: Exertional dyspnea was present (20% in severe vs 18.4% in moderate; P = .810). Abnormalities on chest radiology imaging were detected more often in severe COVID-19 infection vs moderate infection (29% vs 8.8%; P < .001). Pulmonary function testing (forced spirometry or diffusion) performed at 12 months of mean follow-up according to protocol detected anomalies in 31.4% of patients with severe COVID-19 courses and in 27.7% of moderate patients. Risk factors associated with diffusion impairment at 12 months were age (odds ratio [OR], 1.05; 95% CI, 1.01-1.10; P = .008), forced expiratory volume in 1 second predicted at follow-up (OR, 0.96; 95% CI, 0.93-0.99; P = .017), and dyspnea score at follow-up (OR, 3.16; 95% CI, 1.43-6.97; P = .004). Computed tomography (CT) scans performed at 12 months of mean follow-up showed evidence of fibrosis in almost half of patients with severe COVID-19 courses, who underwent CT according to protocol. Conclusions: At 12 months from infection onset, most patients refer to symptoms, particularly muscle weakness and dyspnea, and almost one-third of patients with severe COVID-19 pneumonia had impaired pulmonary diffusion and abnormalities on chest radiology imaging. These results emphasize the importance of systematic follow-up after severe COVID-19, with appropriate management of pulmonary sequelae.

Testing for Vitamin D in High-Risk COPD in Outpatient Clinics in Spain: A Cross-Sectional Analysis of the VITADEPOC Study.

Background: Vitamin D deficiency has been associated with an accelerated deterioration in lung function and increased exacerbations in chronic obstructive pulmonary disease (COPD). 25(OH) vitamin D levels have been indicated as a potentially useful marker for adverse results related to COPD. Methods: VITADEPOC is a cross-sectional clinical study recruiting consecutive patients with high-risk COPD. The objective of our study was to investigate vitamin D determination frequency in patients with high-risk COPD in clinical practice at outpatient clinics in Spain and to describe the factors associated with vitamin D testing. We also aimed to determine the frequency of vitamin D deficiency in these patients. Results: Only 51 (44%) patients underwent vitamin D determination and 33 (28.4%) had received vitamin D supplements in clinical practice. The patients who underwent testing for vitamin D in clinical practice were more often women (58.8% vs. 26.2%, p < 0.001) with comorbidities such as osteoporosis (19.6% vs. 6.2%, p < 0.001) or chronic renal failure (7.8% vs. 0%, p < 0.001) and with exacerbator phenotype (55% vs. 32.3%, p = 0.015). A total of 63 (54.3%) patients had serum vitamin D levels <20 ng/mL at the inclusion visit. Of these, 29 (46%) had serum vitamin D levels <12 ng/mL (severe deficiency). Having a history of inhaled corticosteroids (OR 3.210, p < 0.016), being treated with a cycle of systemic corticosteroids (OR 2.149, p < 0.002), and having a lower physical activity level (OR 3.840, p < 0.004) showed a statistically significant positive association with vitamin D deficiency. Conclusion: The testing of vitamin D levels in patients with high-risk COPD treated at outpatient respiratory clinics in Spain is infrequent. However, when tested, a severe deficiency is detected in one in four patients. Efforts to optimize case detection in COPD are needed.

Knowledge of chronic obstructive pulmonary disease, presence of chronic respiratory symptoms and use of spirometry among the Spanish population: CONOCEPOC 2019 study / Conocimiento de la enfermedad pulmonar obstructiva crónica, presencia de síntomas respiratorios crónicos y uso de la espirometría en la población española: estudio CONOCEPOC 2019

Objective: The aim of this study was to analyze current data on the population's level of knowledge about COPD and to evaluate certain diagnostic interventions, such as the use of spirometry. Material and methods: An epidemiological, observational, cross-sectional study by telephone interview, with random dialing of landline telephone numbers, was conducted in November 2019, in a nationally representative sample of adults over 40 years of age. Results: From a total of 51,079 telephone calls, a total of 1920 individuals responded. Mean age was 61.9 years and 31.6% were men. Overall, 19.4% were current smokers and 13.4% reported respiratory disease (5% reported COPD). In total, 27.9% had spontaneous knowledge of COPD, which is a relative increase from the 17% observed in 2011. The most frequent information channel was the media (35.5%), with a significant presence of social networks and the Internet (25.7%). Almost one fifth (18.1%) had chronic respiratory symptoms. Of these, 59.3% had requested medical care, and 66.2% had undergone spirometry. Spirometry was performed less frequently in subjects treated in primary care compared to respiratory medicine departments (51.9% versus 79.1%; P < .001). Conclusions: Knowledge of COPD is still scarce, and strategies are needed to increase awareness and the importance of assessing respiratory symptoms and increased use of spirometry. (AU)

Objetivo: El objetivo de este estudio es analizar los datos actuales del nivel de conocimiento de la población sobre la EPOC y evaluar algunas actuaciones diagnósticas, como el uso de espirometría. Material y métodos: Estudio epidemiológico, observacional y transversal mediante entrevista telefónica, con marcación aleatoria de números de teléfono fijos, realizado en noviembre del 2019, con una muestra representativa a nivel nacional en adultos mayores de 40 años. Resultados: De un total de 51079 contactos telefónicos se obtuvo un total de 1920 encuestados. La edad media era 61,9 años con 31,6% de hombres. 19,4% eran fumadores actuales y un 13,4% referían tener alguna enfermedad respiratoria (5% referían una EPOC). El 27,9% tenía conocimiento espontáneo sobre la EPOC, lo que supone un aumento relativo respecto al 17% observado en el 2011. El canal de información más frecuente eran los medios de comunicación (35,5%), con importante presencia de redes sociales e internet (25,7%). Un 18,1% tenían síntomas respiratorios crónicos. De ellos, un 59,3% solicitaron atención médica, y 66,2% se realizó la espirometría. La espirometría era realizada con menor frecuencia en sujetos atendidos en atención primaria respecto a neumología (51,9% versus 79,1%; P < .001). Conclusiones: El conocimiento de la EPOC es todavía escaso, y son necesarias estrategias para aumentar la concienciación y la importancia de evaluar los síntomas respiratorios y el mayor uso de la espirometría. (AU)

Effect of a Pulmonary Embolism Diagnostic Strategy on Clinical Outcomes in Patients Hospitalized for COPD Exacerbation: A Randomized Clinical Trial.

Importance: Active search for pulmonary embolism (PE) may improve outcomes in patients hospitalized for exacerbations of chronic obstructive pulmonary disease (COPD). Objective: To compare usual care plus an active strategy for diagnosing PE with usual care alone in patients hospitalized for COPD exacerbation. Design, Setting, and Participants: Randomized clinical trial conducted across 18 hospitals in Spain. A total of 746 patients were randomized from September 2014 to July 2020 (final follow-up was November 2020). Interventions: Usual care plus an active strategy for diagnosing PE (D-dimer testing and, if positive, computed tomography pulmonary angiogram) (n = 370) vs usual care (n = 367). Main Outcomes and Measures: The primary outcome was a composite of nonfatal symptomatic venous thromboembolism (VTE), readmission for COPD, or death within 90 days after randomization. There were 4 secondary outcomes, including nonfatal new or recurrent VTE, readmission for COPD, and death from any cause within 90 days. Adverse events were also collected. Results: Among the 746 patients who were randomized, 737 (98.8%) completed the trial (mean age, 70 years; 195 [26%] women). The primary outcome occurred in 110 patients (29.7%) in the intervention group and 107 patients (29.2%) in the control group (absolute risk difference, 0.5% [95% CI, -6.2% to 7.3%]; relative risk, 1.02 [95% CI, 0.82-1.28]; P = .86). Nonfatal new or recurrent VTE was not significantly different in the 2 groups (0.5% vs 2.5%; risk difference, -2.0% [95% CI, -4.3% to 0.1%]). By day 90, a total of 94 patients (25.4%) in the intervention group and 84 (22.9%) in the control group had been readmitted for exacerbation of COPD (risk difference, 2.5% [95% CI, -3.9% to 8.9%]). Death from any cause occurred in 23 patients (6.2%) in the intervention group and 29 (7.9%) in the control group (risk difference, -1.7% [95% CI, -5.7% to 2.3%]). Major bleeding occurred in 3 patients (0.8%) in the intervention group and 3 patients (0.8%) in the control group (risk difference, 0% [95% CI, -1.9% to 1.8%]; P = .99). Conclusions and Relevance: Among patients hospitalized for an exacerbation of COPD, the addition of an active strategy for the diagnosis of PE to usual care, compared with usual care alone, did not significantly improve a composite health outcome. The study may not have had adequate power to assess individual components of the composite outcome. Trial Registration: ClinicalTrials.gov Identifier: NCT02238639.