2019 #1 a retrospective study of the incidence and management of complications associated with regional nerve blocks in equine dental patients

Question 1

what complications were reported from the infraorbital nerve block

Answer 1

no reported complications

Question 2

what complications were reported from the maxillary nerve block

Answer 2

a suborbital haematoma - 3 patients

failure to desensitise - 1 patient

Question 3

what complications were reported from the mental nerve block

Answer 3

haematoma at the mental formen bilaterally

Question 4

what complications were reported from the mandiobular nerve block

Answer 4

lingual self trauma - 2 horses - only extraoral approach not intraoral approach

Question 5

What was the complications rate

Answer 5

2.96%

Question 6

What was the most frequent complication?

Answer 6

haematoma formation

Question 7

What are the recommendations?

Answer 7

• reducing anesthetic volumes, (in this study used lower volume than previous studies; 5ml instead of 10 ml )
• precise needle placement,
• familiarity with the facial anatomy relevant to nerve blocks,
• adequate restraint (chemical and physical), aseptic technique,
• postprocedural muzzling,
• assuring sterility of the anesthetic