Ears

Question 1

Wainberg
Unilateral, staged bilateral, single-stage bilateral VBO Cats
JAVMA 2019

Answer 1

Respiratory complications
~unilateral 9%
~staged bilateral 29%
~single-stage 47%

Horner’s 68%
Head tilt 30%
Facial n. paralysis 14%

Dz Recurrance 6%

Before = Permanent
Horner’s 2.6
Head tilt 3.3
Facial n paralysis 5.6

Question 2

Krainer
Ear Effusions & BOAS
VetSurg 2021

Answer 2

Middle Ear Effusion
~Frenchie 57%
~Pug 17%

Contrast enhancement of Bulla
~Frenchie 42%
~Pug 50%

Question 3

Coleman
Bilateral vs. Unilateral TECA-BO
VetSurg 2016

Answer 3

Complication rates
~Bilateral 73%
~Unilateral 64%

No significant difference between the 2

Question 4

Sounds travel through inner ear

Answer 4

Tympanic membrane
Melleus
Incus
Stapes
Round window
Cochlea
Semicircular canals