Guttural pouch mycosis in horses: a retrospective study of 28 cases.
Authors: Dobesova O, Schwarz B, Velde K, Jahn P, Zert Z, Bezdekova B
Journal: The Veterinary record
Summary
# Guttural Pouch Mycosis: Outcomes and Treatment Considerations Guttural pouch mycosis remains a serious condition in horses, presenting clinically with nasal discharge, epistaxis, dysphagia and cough, though diagnosis often requires advanced imaging given the non-specific nature of these signs. A retrospective analysis of 28 cases found that whilst disease typically originated unilaterally, septal involvement allowed contralateral spread in nearly 18% of cases, highlighting the importance of thorough bilateral examination. Survival outcomes were poorest in horses presenting with dysphagia (p=0.008), which also constituted the primary indication for euthanasia, suggesting that pharyngeal dysfunction represents a critical prognostic indicator independent of treatment approach. Notably, no significant survival advantage emerged between medical management (three cases), surgical intervention (11 cases) or combination therapy (seven cases), with half the cohort surviving regardless of approach, indicating that treatment selection should be individualised based on disease extent and patient tolerance rather than on predicted efficacy alone. For practitioners managing these cases, careful assessment of swallowing ability and early recognition of pharyngeal compromise are essential for prognostication and welfare-based decision-making, whilst the lack of superior outcomes with any single modality suggests that collaboration between surgical and medical specialists, alongside owner counselling regarding realistic expectations, remains paramount.
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Practical Takeaways
- •Prognosis in guttural pouch mycosis is guarded with 50% survival regardless of treatment approach; dysphagia severity should guide euthanasia decisions
- •Nasal discharge, epistaxis, and cough warrant investigation for guttural pouch mycosis, but dysphagia indicates a poorer prognosis
- •Medical and surgical treatments appear equally effective, so choice should be based on individual case factors and horse owner preferences rather than expected outcome differences
Key Findings
- •50% of horses (14/28) with guttural pouch mycosis survived, while 50% were euthanased or died
- •Dysphagia due to pharyngeal dysfunction was the most common reason for euthanasia and showed highly significant correlation with non-survival (p=0.008)
- •Treatment method (medical, surgical, or combination) showed no significant correlation with survival rate
- •Disease was unilateral in all 28 cases, though 5 horses had contralateral spread via the mesial septum