Endoscopic electrosurgical excision of laryngeal granulation tissue in a standing pregnant mare

An Ii-year-old, eight-months pregnant mare suddenly developed severe respir atory distress. Endoscopic examination identified intralaryngeal granulatio n tissue obstructing the airway In order to avoid general anaesthesia and t he problems associated with a permanent tracheostomy, the mass was resected electrosurgically while the mare was standing. Patency was restored to the airway and the mare foaled without complication.