Anaesthesia for airway dental and occular procedures Flashcards
What must be considered when completing an anaesthetic for a patient undergoing rhinoscopy trache-broncoscopy
Very stimulating procedure
Adequate depth anaesthesia (deep plane)
Antisussive drugs (butorphanol)
Why may the ET tube be removed in a rhinoscopy patient and what steps should be taken if the
Is takes place?
To observe further down the larynx
Preoxygenate
Laryngeal mask
Total infused Voltaire anaesthetic (propofol CRI) unable to use volatile
What condition associated with cats may be of concern when completing a rhinoscopy and what can be done to prevent it?
Laryngeal spasm
(Bronchoconstriction)
Pre-treat glycopyrrolate(anti-cholinergenic)
Beta 2 agonists inhaler for acute asthmatic crisis (salbutamol terbutaline)
Monitor recovery until breathing fully
Why should a BOAS case not be left alone after their pre med?
Soft tissues may block the airways
Upper airway obstruction due to muscle relaxation
What difficulties at a BOAS dog provide you with during induction?
Difficult intubation (soft tissues surrounding larynx)
Narrow trachea
Laryngeal collapse
Pre-oxygenate!!!
Have hands ready consider urinary catheter as guide
What problems may occur during surgery in a BOAS dog?
Risk of regurgitation
(Keep in sternal, extubate late, cuff tube, extubate mildly cuffed tube)
Manipulation of the surgical field may kink et tube or increase soft tissue swelling
Why should BOAS dogs be monitored closely in recovery?
Upper airway obstruction due to muscle relaxation Hang from canines Monitor SpO2 Check breathing pattern Extubate late Corticosteroids Tracheostomy Use sedatives
Why may laryngeal surgery be required?
Laryngeal paralysis horses and dogs
What may dogs with laryngeal paralysis present with?
Obstructive breathing
Tracheostomy
Sedatives to calm
What complications may arise during laryngeal paralysis surgery?
Tube may be in surgical field(make surgeon aware) have spare tube
may need to extubate
Pre-oxygenate TIVA
Blood in upper airway extubate mildly inflated cuff
Why may dental surgery cause problems with the ET tube?
Awkward positioning may kink or block the tube (reinforced tube)
Traction of the tube when moving over (disconnect patient)
Why is it important to consider the side effects of a mouth gag in dental procedures?
Cats of mouth opened too wide can cause blindness
What must be considered during the dental procedure?
Hypothermia
What must be considered when recovering a dental patient?
Tartar and water in the oropharynx
Extubate mildly inflated cuff
Pack with gauzes (count at the end of the procedure)
What loco-regional techniques can be used in the dental patient?
Maxillary
Inferior alveolar nerve
Infraortibal nerve
Mental