Improving the generalizability of interstitial lung disease (ILD) research requires inclusion of diverse populations in clinical trials. Despite ongoing efforts to improve racial and ethnic minority participation, reporting and representation of sex, race, and ethnicity in ILD studies remain sub-optimally defined. This systematic review evaluated demographic reporting and participant representation in recent ILD clinical trials.

Non-cystic fibrosis bronchiectasis is characterized by chronic respiratory symptoms and radiologic airway dilatation. Sustained neutrophilic inflammation is a key driver, prompting interest in antiinflammatory pharmacotherapy as a new treatment paradigm; however, comparisons among antiinflammatory agents are lacking.

Individuals who do not smoke account for a growing proportion of lung cancer (LC) incidence, but the impact of prior lung diseases on lung cancer risk in this population remains unclear.

Severe asthma affects 5% to 10% of patients with asthma but constitutes close to one-half of the medical costs related to asthma due to higher morbidity and health care utilization. Biologic agents have become a standard of care in those unresponsive to standard treatments yet the choice of biologic agent is complex due to the varying mechanisms of action, efficacies, and lack of head-to-head comparisons. Therefore, clinicians need further clinical guidance to optimize their use.

High doses of a maintenance inhaled corticosteroids (ICSs) in asthma may achieve only modest additional clinical benefit beyond low-to-medium doses and are associated with an increased risk of adverse systemic effects. The ICS dose-response relationship when administered as maintenance combination ICS/long-acting beta2-agonist (LABA) therapy is uncertain.

Lung cancer remains the number 1 cause of cancer death in men and women in the United States and much of the world. This CHEST organization guideline examines the literature on primary treatment of patients with stage I and II non-small cell lung cancer (NSCLC) to provide evidence-based recommendations.

Lung cancer is the leading cause of global cancer mortality. It is also the third most common cancer in the United Kingdom and the most prevalent worldwide. Pulmonary nodules can indicate early-stage lung cancer, but adherence to guidelines for radiologic surveillance is suboptimal, which affects early detection and treatment. Although interventions have been developed to improve follow-up, it remains unclear which approaches are most effective.

Early detection and treatment of COPD are becoming important for improving the prognosis of individuals who have a history of heavy tobacco use. Despite the higher risk of COPD among individuals participating in lung cancer screening, many of these patients continue to show rates of underdiagnosis of lung cancer.

Alpha-1-antitrypsin (A1AT) deficiency is a common hereditary disorder associated with increased risk of developing chronic obstructive pulmonary disease (COPD). Many individuals with severe A1AT deficiency go undiagnosed, or are diagnosed late, and fail to benefit from disease-specific counseling and modifying care. Since the 2012 Canadian Thoracic Society (CTS) A1AT deficiency clinical practice guideline, new approaches to optimal diagnosis using modern genetic testing and studies of A1AT augmentation therapy have been published. We performed a systematic review and meta-analysis, which along with expert clinical input, informed recommendations. We conditionally recommend testing for A1AT deficiency in all individuals with COPD at the time of diagnosis, individuals with adult-onset asthma with persistent airway obstruction, and individuals with unexplained bronchiectasis. We suggest genetic testing with DNA sequencing of SERPINA1 gene as the initial test for individuals with high clinical suspicion for A1AT deficiency, and initial measurement of serum A1AT levels in individuals with moderate clinical suspicion of A1AT deficiency, followed by genetic testing with DNA sequencing of SERPINA1 gene if A1AT level is <23 μmol/L (<1.2 g/L). Following identification of an abnormal gene for A1AT in individuals, whether heterozygote or homozygote, we suggest first-degree relatives be provided genetic counseling and offered testing for A1AT deficiency. The panel conditionally recommends A1AT augmentation therapy to patients who do not smoke or who formerly smoked with COPD (forced expiratory volume in 1 s [FEV1] < 80% predicted; associated with emphysema), with documented deficiency genotypes and severely reduced A1AT level (< 11 μmol/L or < 0.57 g/L) in addition to receiving optimal pharmacological and nonpharmacological therapies for COPD.

The prevalence of chronic respiratory diseases is increasing globally. There is evidence that those with spirometric impairment and no signs of obstruction (termed preserved ratio impaired spirometry [PRISm]) have an increased risk of morbidity and mortality compared with those with normal lung function. Several gaps remain in characterizing PRISm.

Lower respiratory tract infections are common in patients receiving invasive mechanical ventilation in an ICU after an acute brain injury and may have deleterious consequences.

Endobronchial ultrasound-guided transbronchial aspiration (EBUS-TBNA) has become the standard for initial lung cancer diagnosis and staging. Previous guidelines have generally focused on the "when" and "how" of EBUS-TBNA; however, little guidance is available on handling and processing specimens during and after acquisition to help optimize both diagnostic yield and tissue integrity for ancillary studies. This document examines the available literature on EBUS-TBNA specimen processing and handling.

The latest meta-analysis indicated potential survival benefits from ultra-short-acting β-blockers in patients with sepsis with persistent tachycardia. However, subsequent multicenter randomized controlled trials (RCTs) have reported conflicting findings, prompting the need for an updated meta-analysis to incorporate these newly published RCTs.

Central airway obstruction (CAO), seen in a variety of malignant and nonmalignant airway disorders, is associated with a poor prognosis. The management of CAO is dependent on provider training and local resources, which may make the clinical approach and outcomes highly variable. We reviewed the current literature and provided evidence-based recommendations for the management of CAO.

Vasopressor administration at an appropriate time is crucial, but the optimal timing remains controversial.

Reintubation is associated with higher risk of mortality. There is no clear evidence on the best spontaneous breathing trial (SBT) method to reduce the risk of reintubation.

Refractory or unexplained chronic cough disrupts quality of life and burdens health care systems around the world. The P2X3 receptor antagonist gefapixant is approved in many countries for its antitussive effects, but taste disturbances are a common adverse effect. Four newer, more selective P2X3 receptor antagonists have been developed to address this problem.

Pulmonary hypertension (PH) is a key complication in interstitial lung disease (ILD), with recent therapeutic advances.

Inhaled antibiotics are recommended conditionally by international bronchiectasis guidelines for the treatment of patients with bronchiectasis, but results of individual studies are inconsistent. A previous meta-analysis demonstrated promising results regarding the efficacy and safety of inhaled antibiotics in bronchiectasis. Subsequent publications have supplemented the existing body of evidence further in this area.

Standard treatment for early-stage or locoregionally advanced non-small cell lung cancer (NSCLC) includes surgical resection. Recurrence after surgery is commonly reported, but a summary estimate for postsurgical recurrence-free survival (RFS) in patients with NSCLC is lacking.