Chronic obstructive pulmonary disease (COPD) is the name for a group of lung conditions that cause breathing difficulties. It includes: emphysema – damage to the air sacs in the lungs; chronic bronchitis – long-term inflammation of the airways; COPD is a common condition that mainly affects middle-aged or older adults who smoke.

Oct 01, 2015 · In addition, the beneficiary must have a severe lung disease, such as chronic obstructive pulmonary disease, diffuse interstitial lung disease, cystic fibrosis, bronchiectasis, widespread pulmonary neoplasm, or hypoxia-related symptoms or findings that might be expected to improve with oxygen therapy (see Oxygen LCD for additional information).

Obstructive airway disease is a common manifestation of BPD and can present with signs and symptoms similar to asthma. Both airway inflammation and structural changes may play a role in the obstructive lung disease related to BPD. ... An FEV 1 of < 2 L or an FEV 1: VC ratio of less than 50% are sometimes quoted as values which define serious ...

With this systematic review we aimed to determine the prevalence of obstructive sleep apnea (OSA) in adults in the general population and how it varied between population sub-groups. ... generate consensus on methodology and diagnostic threshold to define OSA so that the prevalence of OSA can be validly compared across regions and countries ...

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Mar 01, 2022 · CME Information and Guidelines for Manuscript Review. The Editors of American Journal of Ophthalmology in conjunction with the Elsevier Office of Continuing Medical Education (EOCME) are pleased to offer an AMA PRA Category 1 CreditsTM credit program for registered American Journal of Ophthalmology physician reviewers ("reviewers") who complete …

In a cross-sectional study, George Qian, Michiko Toizumi, and colleagues estimate carriage prevalence of Streptococcus pneumoniae among infants and the risk of …

May 15, 2018 · Chronic obstructive pulmonary disease (COPD) is comprised primarily of three related conditions: 1) chronic bronchitis, 2) chronic asthma, and 3) emphysema. With each of these three conditions there is a chronic obstruction of air flow through the airways and out of the lungs. The obstruction generally is permanent and may progress over time.

Obstruction definition, something that obstructs, blocks, or closes up with an obstacle or obstacles; obstacle or hindrance: obstructions to navigation. See more.

Introduction. Chronic obstructive pulmonary disease (COPD) is an inflammatory disorder of the lung that is characterized by irreversible or partially reversible airflow limitation (Rabe et al 2007).It is highly prevalent affecting 600 million people worldwide and accounting for nearly 4 million deaths annually (Murray and Lopez 1997b).Over the next 20 years, the burden of COPD …