Anaesthesia Safety in Cats: Minimising Risk and Improving Outcomes

Anaesthetic complications are a significant source of preventable suffering in cats. Species-specific protocols, careful monitoring, and appropriate pain management are essential to safe feline anaesthesia.

Key Facts

Cats are at higher anaesthetic risk than dogs due to unique metabolic differences in drug processing
Feline anaesthetic mortality is estimated at 0.11-0.24% — higher than in dogs (0.05-0.17%)
Cats cannot metabolise many drugs as efficiently as dogs due to limited glucuronidation capacity in the liver
Hypothermia during and after anaesthesia is common in cats and significantly worsens recovery outcomes
Pre-anaesthetic blood work detects subclinical organ disease that may increase risk in apparently healthy cats

Welfare Considerations

Cats are not small dogs, and their anaesthetic management must account for significant metabolic and physiological differences. Drug choices, monitoring protocols, and recovery care all require species-specific approaches. Common welfare failures include inadequate pain management, hypothermia during and after procedures, and failure to detect pre-existing organ disease that increases risk. Good anaesthetic practice includes pre-operative assessment, appropriate premedication, intraoperative temperature maintenance, and multimodal pain management. Owners should ask their veterinarian about their protocols and advocate for pre-anaesthetic blood screening, especially in older cats.

What You Can Do

Request pre-anaesthetic blood work for your cat, particularly if they are over 7 years old
Ask your vet about their feline-specific anaesthetic protocols and pain management approach
Ensure your cat is kept warm before and after procedures to prevent hypothermia
Support veterinary education in feline-specific anaesthesia to raise standards across the profession