Suspected pulmonary oedema development in a pig following general anaesthesia and the associated complications encountered during a subsequent general anaesthetic

An 85 kg, 6-year-old pig presenting with stranguria was anaesthetised for computed tomography and cystotomy. During this anaesthetic, bradyarrhythmias occurred twice, both responding to medical intervention. A cystotomy tube placed but the removal of one urethrolith not possible. Recovery from anaesthesia uneventful. hospitalisation, animal's respiratory rate effort increased, crackles on thoracic auscultation. As responded antibiotics a reduction in intravenous fluid therapy, underwent second anaesthetic percutaneous cystolithotomy remove urethrolith. On induction anaesthesia, clear visible oropharynx. This removed by suction after intubation large volumes flowed tract via endotracheal tube. The pig's condition stabilised during furosemide intermittent positive-pressure ventilation. Surgery completed animal recovered anaesthesia. Postoperatively developed severe dyspnoea cardiopulmonary arrest.