Recovery and Complications of Anaesthesia Flashcards
What do you need in an equine anaesthesia recovery box
Dry floor
Towels
Nasal tubes
Oxygen
Sedatives
(De)cuffing syringe
Same some common complications during the recovery stage of anaesthesia (equine)
Upper airway obstruction
Laryngeal obstruction
Nasal oedema
Pulmonary oedema
Name 5 causes of bradycardia during anaesthesia
Drugs - volatile, alpha 2, induction agent
Toxaemia - hyperkalaemia is a common cause
Vagus nerve - stimulated by pulling on guts
Heart problems
Hypoxia
Describe the approach to treatment of bradycardia
Check if the output is compromised (ABP and SPO2)
Check the depth of anaesthesia
Determine the cause - vagal stimulation, alpha 2,
If alpha 2 induced - can reverse using atipamezole
Consider anticholinergics - atropine
What are some causes of tachycardia under anaesthetic
Sympathetic stimulation - anaesthetic is too light
CNS disturbances
LOW arterial BP
Drugs e.g. anticholinergics
What is the approach to treatment of tachycardia
Why is it happening
Check the depth of anaesthesia
Consider giving opioids or lidocaine or increase volatile agent
Add analgesia to stop pain
Name 3 commonest causes of hypotension
Anaesthetic drugs
Hypovolaemia and haemorrhage
Cardiac insufficiency
What should you do if a patient turns hypotensive under anaesthesia
Determine cause
Reduce volatile agent
Increase IVFT
Check urine output
Consider use of vasopressor or inotrope
What causes post-op myopathy in horses after anaesthesia
Caused my malposition and hypotension during surgery
Weight of the horse on a muscle - reduced perfusion
Occurs when the horse wakes up
Name 3 ways the risk of post-op myopathy can be reduced in horses
Mechanisms to improve perfusion and blood pressure
Using less inhalation anaesthesia can improve blood pressure
Using inotropes
