Lungs

Question 1

Dickson
Spontaneous Pneumothorax
JAVMA 2021

Answer 1

13% recurrence of pneumothorax
~median time 9 days

after 30d 3%

Left cranial lung lobe 33%
Right cranial lung lobe 24%

Question 2

Howes
Long term for pneumothorax caused by blebs
JSAP 2020

Answer 2

2y survival 88%
5y survival 84%

Recurrance 14% at 25d

Risk factor:
Giant breed
Increasing body weight

Cranial lung lobes and multiple lesions 41%

Question 3

Bruckner
Vessel sealing in lung lobectomies
JSAP 2019

Answer 3

Pressure of leakage
~Peripheral 39 cmH2O
~Total 38 cmH2O

Largest bronchial diameter 8.84mm

Collateral damage 2.7mm

Question 4

Rossanese
Survival after idiopathic lung lobe torsion
VetSurg 2020

Answer 4

Primary 77%
Secondary 21% (survival 921d)

Post-op complications 14%

Breeds
~Pugs 48%
~Sighthounds 16%

Survival to discharge 95%

Question 5

Wavreille
Pneumonectomy
VetSurg 2016

Answer 5

Complications
Dog 76%
Cats 80%

Periop 2 week death
Dog 6%
Cats 20%

Neoplasia 52%

Question 6

Majeski
Pneumonectomy
VetSurg 2016

Answer 6

Survival to discharge
Dog 94%
Cats 86%

Dogs had significant
~increase in PO PaO2
~decrease in PO AA gradient
(more than a single lung lobectomy)

Survival times
Dog 1,868 days
Cats from 1,585 days

Question 7

Park
Lung lobe torsion
VetSurg 2018

Answer 7

92% survival to discharge

Concurrent right cranial and middle: 50% survival
Left cranial 100% survival

MST 1369D

4/52 had >1 episode of lung lobe torsion

Question 8

Oxygen dissociation curve shifted to right

Answer 8

Acidosis
Increased temperature
Increased 2,3-diphosphoglycerate in RBC
Increased CO2

Better unloading of oxygen