Pharmacological treatments in asthma-affected horses: A pair-wise and network meta-analysis.
Authors: Calzetta L, Roncada P, di Cave D, Bonizzi L, Urbani A, Pistocchini E, Rogliani P, Matera M G
Journal: Equine veterinary journal
Summary
# Editorial Summary: Pharmacological Management of Equine Asthma Equine asthma represents a significant clinical challenge, characterised by reversible airflow obstruction, bronchial hyper-responsiveness and airway inflammation triggered by exposure to airborne irritants; whilst dust avoidance can induce clinical remission, recurrent exacerbations risk permanent airway remodelling that may limit long-term prognosis. Calzetta and colleagues conducted a comprehensive pair-wise and network meta-analysis of pharmacological interventions for equine asthma, synthesising data from multiple small-scale studies to establish comparative efficacy when direct head-to-head trials are absent. The analysis identified several treatment approaches with varying effectiveness profiles, allowing clinicians to make evidence-based decisions about drug selection based on severity and individual horse response rather than default protocols. Understanding the relative merits of available medications—alongside their practical administration routes and cost-effectiveness—enables equine professionals to tailor therapeutic strategies that maximise airway function whilst potentially preventing the irreversible changes associated with chronic poorly-managed disease. For practitioners managing asthma-affected horses, this synthesis provides a much-needed framework for optimising pharmacological support, particularly where environmental control alone proves insufficient or compliance is limited.
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Practical Takeaways
- •Environmental management (reducing airborne dust) is critical for achieving clinical remission and preventing irreversible airway damage in asthmatic horses
- •Current medication comparisons are limited by lack of direct clinical trials; use evidence-based selection while advocating for better comparative research
- •Early intervention may be important to prevent progression from reversible to irreversible airway changes
Key Findings
- •Equine asthma is characterized by reversible airflow obstruction, bronchial hyper-responsiveness, and airway inflammation triggered by airborne agent exposure in susceptible horses
- •Clinical remission is achievable in low-airborne dust environments, but repeated exacerbations can lead to irreversible airway remodelling
- •Available pharmacotherapy evidence comes from multiple small studies with no head-to-head clinical trials comparing available medications