Background: High rates of thrombotic events and systemic inflammation among COVID-19 hospitalized patients led researchers to test whether intensified anticoagulation strategies could reduce morbidity and mortality. Previous trials yielded conflicting results, partly due to varying doses of anticoagulants—prophylactic, intermediate, or therapeutic—and heterogeneous patient severity. This comprehensive investigation, conducted by the WHO Rapid Evidence Appraisal for COVID-19 […]

The post Meta-analysis: Therapeutic-Dose Heparin Improves 28-Day Mortality in COVID-19 Hospitalized Patients appeared first on Links Medicus.

Introduction: This summary outlines new clinical practice guidelines from the American Thoracic Society, U.S. Centers for Disease Control and Prevention, European Respiratory Society, and Infectious Diseases Society of America on updated treatment regimens for tuberculosis (TB) in low-incidence settings. These recommendations build on recent clinical trials, World Health Organization (WHO) guidance, and were developed using […]

The post Joint ATS/CDC/ERS/IDSA Guideline Recommends Shorter, All-Oral Regimens for Drug-Susceptible and Drug-Resistant TB appeared first on Links Medicus.

Background: Highly pathogenic avian influenza A(H5N1) has reemerged in the United States with documented infections in poultry and dairy cows since 2021. From March through October 2024, 46 human cases were identified, most of whom were workers engaged in poultry depopulation or dairy-farm activities where infected or presumably infected animals were present. Objective: To characterize […]

The post Avian Influenza A(H5N1) Outbreak Among US Farm Exposures: Clinical Findings and Early Treatment Outcomes appeared first on Links Medicus.

Background: The Advanced Trauma Life Support (ATLS) guidelines recommend providing supplemental oxygen to severely injured patients in the early phase after trauma, although the evidence base is limited. Observational research suggests that liberal oxygen administration may raise the risk of death and respiratory complications. Therefore, the TRAUMOX2 trial examined whether an 8-hour restrictive oxygen strategy […]

The post RCT: Early Restrictive vs Liberal Oxygen Strategy in Severe Trauma – No Significant Outcome Difference appeared first on Links Medicus.

Background: Multidrug-resistant (MDR) and rifampin-resistant tuberculosis pose significant global health challenges. Preventing active disease among contacts exposed to resistant strains is critical, yet limited evidence exists on targeted chemopreventive interventions. This study investigated whether a six-month course of daily levofloxacin could reduce the incidence of bacteriologically confirmed tuberculosis among household contacts of individuals with confirmed […]

The post RCT: Levofloxacin for the Prevention of Multidrug-Resistant Tuberculosis in Vietnam appeared first on Links Medicus.

Background: Patients with asthma frequently have comorbid obesity and type 2 diabetes (T2D), conditions associated with an increased risk of asthma attacks. Experimental studies suggest that metformin and glucagon-like peptide-1 receptor agonists (GLP-1RAs) can reduce airway inflammation and hyperresponsiveness. However, epidemiological evidence supporting these effects is limited.

Objective: To evaluate the association between metformin use, with or without add-on antidiabetic medications, and the risk of asthma attacks in patients with asthma and T2D.

Methods: This study utilized data from the UK Clinical Practice Research Datalink Aurum from 2004 to 2020, employing two analytical approaches: a self-controlled case series (SCCS) of 4,278 new metformin users with asthma who experienced asthma attacks, and a population-based cohort study using inverse probability of treatment weighting (IPTW) including 8,424 patients. The primary exposure was initiation of metformin; secondary exposures included add-on antidiabetic medications. The primary outcome was the first asthma exacerbation—defined as a short course of oral corticosteroids, unscheduled asthma-related hospital attendance, or death—during 12 months of follow-up.

Results: Metformin use was associated with a significant reduction in asthma attacks in both analyses. In the SCCS, metformin initiation was linked to a 32% reduction in risk (incidence rate ratio [IRR], 0.68; 95% CI, 0.62-0.75). In the IPTW cohort, metformin use was associated with a 24% reduction (hazard ratio [HR], 0.76; 95% CI, 0.67-0.85). Addition of GLP-1RAs led to a further reduction in asthma attacks (IRR, 0.60; 95% CI, 0.49-0.73). Associations were consistent regardless of glycemic control, body mass index, asthma severity, or blood eosinophil counts.

Conclusions: The findings suggest that metformin use is associated with a lower rate of asthma attacks among patients with asthma and T2D, with additional benefits when GLP-1RAs are added. These effects appear independent of glycemic control or weight loss and occur across different asthma phenotypes.

Implications for Practice: These results indicate potential for repurposing metformin as an adjunct therapy to reduce asthma attacks in patients with asthma and T2D. However, as observational studies cannot establish causality, clinicians should interpret these findings cautiously. The higher cost and side-effect profile of GLP-1RAs warrant careful consideration before widespread adoption.

Reference: Lee B, et al. Antidiabetic Medication and Asthma Attacks. JAMA Internal Medicine. 2024. DOI: http://doi.org/10.1001/jamainternmed.2024.5982

Introduction: Lung transplantation has progressed from experimental to standard therapy for life-threatening lung diseases, offering improved survival and quality of life. Challenges include primary graft dysfunction, chronic lung allograft dysfunction (CLAD), infections, and long-term immunosuppression effects. This review highlights current practices, developments, and opportunities to enhance this transformative therapy. Key Recommendations Candidate Selection: Selection criteria […]

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Background: Asthma affects millions worldwide and is managed using inhaled relievers to alleviate acute symptoms. While short-acting β agonists (SABA) are commonly used, combining inhaled corticosteroids (ICS) with SABA or formoterol may enhance outcomes. Recent guidelines recommend ICS-formoterol as the preferred reliever, but the optimal choice remains uncertain, especially following the recent FDA approval of […]

The post RCT: ICS-Formoterol and ICS-SABA Reduce Severe Asthma Exacerbations Compared With SABA Alone appeared first on Links Medicus.

Introduction: Obesity Hypoventilation Syndrome (OHS) is a serious condition characterized by obesity (BMI ≥30 kg/m²), sleep-disordered breathing, and daytime hypercapnia (PaCO₂ ≥45 mm Hg), after excluding other causes of hypoventilation. Recognizing the need for standardized evaluation and management, the American Thoracic Society (ATS) has developed comprehensive guidelines. These aim to improve early recognition, optimize treatment […]

The post ATS Guideline: Evaluation and Management of Obesity Hypoventilation Syndrome appeared first on Links Medicus.

Background: Patients with advanced lung cancer often face a high symptom burden and decreased quality of life (QOL), but access to early palliative care, which can improve these outcomes, remains limited. While telehealth has become increasingly utilized due to the COVID-19 pandemic, it is unclear whether virtual palliative care is as effective as in-person care. […]

The post RCT: Telehealth-Delivered Early Palliative Care Equivalent to In-Person Care in Advanced Lung Cancer appeared first on Links Medicus.