Chest
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The current approach to interpretation of lung function measurements assumes that differences in lung function between racial and ethnic groups represent inherent and biological differences. Observed differences in lung function between White and Black populations are often attributed to physiological differences in body proportions (eg, chest size, leg length); however, most studies investigating the observed differences have not considered the impact of socioeconomic status (SES). ⋯ Reproducible research aimed at explaining the etiology of the differences in lung function between populations is difficult to achieve. The evidence to support the use of race/ethnic specific equations is limited, and the practice needs to be re-evaluated.
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Recent clinical practice guidelines have addressed the diagnosis of idiopathic pulmonary fibrosis (IPF) and fibrotic hypersensitivity pneumonitis (fHP). These disease-specific guidelines were developed independently, without clear direction on how to apply their respective recommendations concurrently within a single patient, where discrimination between these two fibrotic interstitial lung diseases represents a frequent diagnostic challenge. ⋯ Although these algorithms necessarily reflect some uncertainty wherever strong evidence is lacking, they provide insight into the current approach favored by experts in the field based on currently available knowledge. The authors further identify priorities for future research to clarify ongoing uncertainties in the diagnosis of fibrotic interstitial lung diseases.
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Broad-scale adoption of spontaneous awakening trials (SATs) and spontaneous breathing trials (SBTs) into everyday practice has been slow, and uncertainty exists regarding what factors facilitate or impede their routine delivery. ⋯ There are a number of modifiable factors associated with SAT/SBT performance that are amenable to the development and testing of implementation interventions.