Persistent frenulum of the epiglottis in four foals.

The research study looks into the occurrence of persistent frenulum of the epiglottis in foals, its symptoms, and effective management methods, including surgical intervention to correct the condition.

Introduction and Methods

• The researchers present the case studies of four newborn foals who were brought in with the issue of oronasal reflux after nursing.
• Nasal endoscopy was used as a tool to confirm a diagnosis of persistent dorsal displacement of the soft palate, architecture commonly attributed to persistent frenulum of the epiglottis.
• The detected condition was confirmed further with oral endoscopic examination.

Procedure and Results

• These foals underwent minor surgical procedures where the persistent frenulum of the epiglottis was transected or divided.
• Post-surgery, all four foals had their epiglottis reverted to the normal position, which is ideally dorsal to the soft palate.
• Three of the foals showed a resolution of clinical signs of oronasal reflux from their second nursing attempt onward. On the other hand, the evaluation was somewhat challenging in the case of one foal due to the mare’s behavior and intermittent nursing conditions. Tragically, this foal passed away two days post-surgery.
• The remaining three foals demonstrated normal epiglottic function, monitored over a period of 2-4 years after surgery.

Conclusion

• The study concludes that, among foals exhibiting oronasal reflux from birth, there could be a potential incidence of persistent frenulum of the epiglottis.
• Proper diagnosis and prompt surgical intervention can lead to a good prognosis for the resolution of this condition, including the restoration of normal epiglottic function. However, further study may be needed to confirm the congenital nature of this condition.