Publications by authors named "J Bourbeau"

The Global initiative for chronic Obstructive Lung Disease (GOLD) report states that the diagnosis of chronic obstructive pulmonary disease (COPD) should be considered in individuals with chronic respiratory symptoms and / or exposure to risk factors. Forced spirometry demonstrating airflow obstruction after bronchodilation is required to confirm the diagnosis using a threshold of forced expiratory volume in 1 s (FEV) / forced vital capacity (FVC) ratio<0.7.

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Background: COPD management is guided by the respiratory symptom burden, assessed using the modified Medical Research Council (mMRC) scale, the COPD Assessment Test (CAT), or both.

Research Question: What are the abilities of mMRC and CAT to detect abnormally high exertional breathlessness on incremental cardiopulmonary cycle exercise testing (CPET) in people with COPD?

Study Design And Methods: Analysis of people ≥ 40 years of age with FEV to FVC ratio of < 0.70 after bronchodilator administration and ≥ 10 pack-years of smoking from the Canadian Cohort Obstructive Lung Disease study.

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Article Synopsis
  • The study hypothesizes that better cardiorespiratory fitness (CRF) can slow down aging, especially in people with chronic airflow limitation (CAL).
  • Researchers analyzed DNA methylation and conducted exercise tests on 78 participants aged 40 and older to see how CRF impacts biological aging.
  • Findings showed that higher initial CRF was linked to slower aging according to various epigenetic markers, suggesting that improving CRF could benefit health in those with chronic respiratory issues.
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Background: COPD inhaler regimens should be appropriate for the patient's peak inspiratory flow (PIF) and should ideally consist of single or similar device(s).

Research Questions: In a subspecialized COPD clinic: (1) What is the prevalence of patients with suboptimal PIF and with inappropriate device(s) for measured PIF? (2) Are there patient-related risk factors associated with suboptimal PIF? (3) What is the prevalence of patients with non-single inhaler therapy (SIT)/nonsimilar devices? (4) Does point-of-care PIF affect clinical decision-making?

Study Design And Methods: In this single-center real-world observational study, PIF was measured systematically at every outpatient visit in a subspecialized COPD clinic, and point-of-care results were provided to the clinician. Coprimary outcomes were the prevalence of outpatients with suboptimal PIF and with inappropriate devices for measured PIF.

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