A 71-year-old man with a history of recurrent tonsillar squamous cell carcinoma was admitted to the hospital with oropharyngeal bleeding. He received high-dose radiation therapy with curative intent. On day 4 of hospitalization, he demonstrated hypoxia resulting from an airway mucus plug and was brought to the medical ICU.

Tranexamic acid is a commonly used hemostatic agent with broad clinical uses across multiple specialties. Systemic toxicity is due to gamma-aminobutyric acid type A and glycine receptor competitive antagonism and has been reported by multiple routes, but toxicity after pulmonary administration via nebulization and BAL has not yet been described. A 44-year-old man with a history of congenital pulmonary arteriovenous malformations underwent routine bronchoscopy for hemoptysis. He received preprocedure nebulized tranexamic acid 500 mg three times daily for 48 h. An additional 1,000 mg was given via BAL for intraprocedural hemostasis. One hour after the procedure, he developed altered mental status, myoclonus, and hyperthermia, which was ultimately controlled with propofol and vecuronium. As the use of pulmonary tranexamic acid increases, toxicity from this agent should be considered. Dose reductions and alternate treatment modalities should be considered in patients with advanced age, arteriovenous malformations, and renal insufficiency.

It remains uncertain for how long pure ground-glass nodules (pGGNs) detected on low-dose CT (LDCT) imaging should be followed up. Further studies with longer follow-up periods are needed to determine the optimal follow-up duration for pGGNs.

Obesity hypoventilation syndrome (OHS) is associated with high morbidity and mortality. There are few data on whether there are gender differences in outcomes.

Pulmonary arteriovenous malformations (PAVMs) are direct connections between the pulmonary artery and vein, creating a right-to-left shunt (RLS). Embolization is indicated to prevent complications. Guidelines recommend follow-up chest CT scans to confirm persistent occlusion and embolization of all treatable PAVMs. Graded transthoracic contrast echocardiography (TTCE) after PAVM embolization may offer a reliable alternative in a subgroup of patients while preventing radiation exposure.

COPD inhaler regimens should be appropriate for the patient's peak inspiratory flow (PIF) and should ideally consist of single or similar device(s).

This narrative review emphasizes the growing interest in palliative care for people with serious lung diseases such as COPD. It reflects on recent publications from the American Thoracic Society, the World Health Organization, and European Respiratory Society, with a focus on nonpharmacologic palliative care for people with COPD from both the health care professional and organizational perspective.

There are physician shortages in the United States including in the cardiopulmonary specialty. Nonphysician advanced practice providers, including nurse practitioners or physician assistants, have been proposed to meet some more routine patient care needs. A supplementary provider called an advanced practice respiratory therapist (APRT) has been proposed. Such personnel start as respiratory therapists followed by training in a graduate degree program. The Commission on Accreditation for Respiratory Care has published a set of standards for such an education program, and one program has begun to train APRTs. The Commission on Accreditation for Respiratory Care requires each accredited program to publish its outcomes. The respiratory therapy credentialing board, the National Board for Respiratory Care, has undertaken stewardship of assessing APRT education program outcomes. The research question asks whether there is national support to develop a standardized assessment of graduates' performances near the end of an APRT education program. This paper describes methods used during this study of the nascent APRT role, which informed decisions of an advisory committee as they considered what content to assess and how to design the measurement instrument. The study exposed a set of survey-derived metrics about potential content signaling whether there was endorsement among physicians, nonphysician advanced practice providers, and APRT graduates. Metrics are described from these and other subgroups plus the committee's decisions are explained about what content to assess and how. Most of the surveyed content was endorsed for being part of the APRT role; therefore, the committee proceeded to make design decisions about the outcome assessment.

Although it is generally accepted that aerobic exercise training does not change lung structure or function, some work suggests that greater pulmonary vascular structure and function are associated with higher exercise capacity (peak rate of oxygen consumption [V˙o2peak]).