Lungs Flashcards
Latimer, JAVMA, 2017:
Lung lobe torsion
86% of the dogs also had what hematological finding?
Most commonly affected lung lobe?
Latimer, JAVMA, 2017:
86% also had anemia
Most commonly affect lung lobe was the left cranial lung lobe (57%), followed by the right middle (29%) then the right cranial (14%)
Park, Vet Surg, 2018:
Lung lobe torsion
Mortality rate?
What % of cases had torsion of the right middle or left cranial lung lobes?
In Pugs, which lung lobe was most commonly affected?
Survival rate was lower for torsion of which lung lobe(s)?
In 25% of the cases, what was identified as a predisposing cause of lung lobe torsion?
Park, Vet Surg, 2018:
Mortality rate: 8%
84% had torsion of the right middle or left cranial lung lobes
In Pugs, the left cranial lung lobe was most commonly affected (91%)
Dogs with concurrent torsion of the right cranial and right middle lung lobes were less likely to survive than those with torsion of the left cranial lung lobe
In 25% of the cases, pleural effusion was identified as a predisposing cause of lung lobe torsion, most of which were chylothorax
Bleakley, Vet Surg, 2018:
Short-term outcome following median sternotomy vs intercostal thoracotomy for lung lobectomy?
Bleakley, Vet Surg, 2018:
The median sternotomy group had increased fluid production from the chest tube, a greater A-a pressure gradient (hypoxemia), more complications requiring intervention, and a prolonged hospital stay
Cronin, Vet Surg, 2019:
Lung lobectomy
What % leaked?
Incidence of bronchial stump failures for lobectomies performed with a pre-tied ligature loop vs stapler vs suture ligation?
Cronin, Vet Surg, 2019:
0% leaked
Incidence of bronchial stump failures for lobectomies performed with a pre-tied ligature loop vs stapler vs suture ligation did not differ
Nylund, Vet Surg, 2019:
Thoracoscopic-assisted lung lobectomy
Outcome of lung lobectomies performed with a TA stapler?
Outcome of lung lobectomies performed with a resorbable self-locking ligation device (LigaTie)?
Nylund, Vet Surg, 2019:
40% of the TA stapled sites leaked at a mean pressure of 22cm H2O when the staple line was >5mm from the hilus, but no leaks occurred when the staple line was up to 5mm from the hilus
All LigaTie sites did not leak at maximum airway pressures
Bruckner, JSAP, 2019:
12mm Caiman vessel-sealing device for peripheral lung biopsy and lung lobectomy
What % of the samples leaked below a pressure of 25cm H2O?
Extent of collateral damage in specimens?
Quality of biopsy specimens?
Bruckner, JSAP, 2019:
0% leaked below 25cm H2O
2.7mm collateral damage in all specimens
All biopsy specimens were of good diagnostic quality
Dickson
Spontaneous Pneumothorax
JAVMA 2021
Recurrence rate?
Bulla most common in what lobes?
13% recurrence of pneumothorax
~median time 9 days
Bulla most common in?
Left cranial lung lobe 33%
Right cranial lung lobe 24%
Howes
Long term for pneumothorax caused by blebs
JSAP 2020
Survival rate at 2y and 5y?
Recurrance rate?
Risk factors for recurrence?
2y survival 88%
5y survival 84%
Recurrance 14% at 25d
Risk factor for recurrence:
Giant breed
Increasing body weight
Bruckner
Vessel sealing in lung lobectomies
JSAP 2019
Pressure of leakage
~Peripheral 39 cmH2O
~Total 38 cmH2O
Largest bronchial diameter 8.84mm
Collateral damage 2.7mm
Rossanese
Survival after idiopathic lung lobe torsion
VetSurg 2020
Survival to discharge?
PO complication rate?
Breed predisposition?
Survival to discharge 95%
Primary 77%
Secondary 21% (survival 921d)
Post-op complications 14%
Breeds
~Pugs 48%
~Sighthounds 16%
Park
Lung lobe torsion
VetSurg 2018
Survival to discharge?
Lobe torsion distribution?
MST?
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
According to Howes et all JSAP 2020, what is the recurrence rate for spontaneous pneumothorax? How quickly does it recur?
14% recurrence rate
25 days - median time to recurrence
Howes et al JSAP 2020 identified which risk factors for recurrence of spontaneous pneumothorax?
Giant breed
Increasing body weight
Ruby et al Vet Rad 2020
What radiographic findings can be used to differentiate between pulmonary masses vs mediastinal masses?
Pulmonary - lateral and caudal location
Mediastinal - more likely to displace other mediastinal structures
Cronin et al VetSurg 2019
What was the conclusion for a pre-tied ligature loop for canine total lung lobectomy?
No leakage of air at physiologic pressures
- sutures was 3-0 PDS, max loop diameter 15cm
