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1.
Article in English | WPRIM | ID: wpr-919478

ABSTRACT

Background@#Although respiratory tract infection is one of the most important factors triggering acute exacerbation of chronic obstructive pulmonary disease (AE-COPD), limited data are available to suggest an epidemiologic pattern of microbiology in South Korea. @*Methods@#A multicenter observational study was conducted between January 2015 and December 2018 across 28 hospitals in South Korea. Adult patients with moderate-to-severe acute exacerbations of COPD were eligible to participate in the present study. The participants underwent all conventional tests to identify etiology of microbial pathogenesis. The primary outcome was the percentage of different microbiological pathogens causing AE-COPD. A comparative microbiological analysis of the patients with overlapping asthma–COPD (ACO) and pure COPD was performed. @*Results@#We included 1,186 patients with AE-COPD. Patients with pure COPD constituted 87.9% and those with ACO accounted for 12.1%. Nearly half of the patients used an inhaled corticosteroid-containing regimen and one-fifth used systemic corticosteroids. Respiratory pathogens were found in 55.3% of all such patients. Bacteria and viruses were detected in 33% and 33.2%, respectively. Bacterial and viral coinfections were found in 10.9%. The most frequently detected bacteria were Pseudomonas aeruginosa (9.8%), and the most frequently detected virus was influenza A (10.4%). Multiple bacterial infections were more likely to appear in ACO than in pure COPD (8.3% vs. 3.6%, p=0.016). @*Conclusion@#Distinct microbiological patterns were identified in patients with moderate-to-severe AE-COPD in South Korea. These findings may improve evidence-based management of patients with AE-COPD and represent the basis for further studies investigating infectious pathogens in patients with COPD.

2.
Article in Korean | WPRIM | ID: wpr-916285

ABSTRACT

Asthma is the most common chronic respiratory disease, affecting 1% to 18% of the population worldwide. It is characterized by various respiratory symptoms, such as wheezing, shortness of breath, chest tightness and cough, and variable airflow limitation. People with asthma often have periods of worsened symptoms and airway obstruction called exacerbations, which can be fatal. We would like to provide the updated clinical management protocols for patients with asthma.Current Concepts: The goal of asthma treatment is to control symptoms adequately and minimize exacerbations. Anti-inflammatory and bronchodilator therapies are the mainstay of asthma treatment and are recommended as a stepwise approach. The pharmacological treatment of asthma involves evaluating and reviewing the current control status based on the symptoms, future risk of exacerbation, comorbidities, side effects, and patient’s satisfaction. Asthma symptoms in some patients remain uncontrolled despite intensive treatment. The development of biomarkers, evaluation of the patient’s phenotype, and personalized treatment, including biologics, can provide new and effective treatment opportunities.Discussion and Conclusion: Successful asthma management can be achieved through accurate diagnosis of asthma, evaluation of the control stages, correct use of controllers and relievers, adjustment of asthma triggers, personalized approach, and training in self-management.

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