BOAS Flashcards
Riggs, Vet Surg, 2019:
Exercise testing and laryngeal auscultation
- Sensitivity of clinical examination for BOAS diagnosis pre-exercise test vs after a 5-min walk vs after a 3-min trot?
- Sensitivity of laryngeal stridor as a predictor of laryngeal collapse before vs after exercise?
Riggs, Vet Surg, 2019:
- Sensitivity of clinical examination for BOAS diagnosis was 57% pre-exercise test vs 70% after a 5-min walk vs 93% after a 3-min trot
- Sensitivity of laryngeal stridor as a predictor of laryngeal collapse was 60% before exercise vs 70% after exercise
Tarricone, Vet Surg, 2019: Brachycephalic risk (BRisk) score for predicting risk of post-op complications
- Association between BRisk and outcome?
- Dogs with BRisk scores greater than what value were 9 times more likely to have a negative outcome?
Tarricone, Vet Surg, 2019:
- BRisk score was associated with negative outcome
- Dogs with BRisk scores >3 were 9 times more likely to have a negative outcome
Oechtering, Vet Surg, 2016:
Aberrant turbinates
- What % of dogs had varying conformations of caudal aberrant turbinates within the meatus nasopharyngei?
- What breed of dog had the highest prevalence of aberrant turbinate growth?
- In Pugs, what was associated with nasal septum deviations?
Oechtering, Vet Surg, 2016:
- 67% of dogs had varying conformations of caudal aberrant turbinates within the meatus nasopharyngei
- Pugs had the highest prevalence of aberrant turbinate growth
- In Pugs, nasal septum deviations were associated with a rostral aberrant turbinate on the concave side
Oechtering, Vet Surg, 2016:
Laser-assisted turbinectomy (LATE)
- Overall mortality rate?
- Most common side effects?
- What % of dogs required repeat conchal tissue resection due to partial regrowth, and which breed of dog required this most frequently?
- Is LATE appropriate as a standalone technique for the treatment of BOAS, or is it recommended as part of a multilevel surgery?
Oechtering, Vet Surg, 2016:
- 2% mortality rate
- 95% of the dogs had mild nasal discharge and scabbing
- 11% required repeat conchal tissue resection and 96% of these dogs were Frenchies
- LATE is not considered to be an appropriate standalone treatment for BOAS but should be an integral part of a multilevel surgery
Liu, Vet Surg, 2019:
Laser-assisted turbinectomy (LATE)
- What measurement was the only predictor for candidacy for LATE in addition to conventional multilevel BOAS surgery?
- What were the most common clinical signs observed after LATE?
Liu, Vet Surg, 2019:
- CT-based measurement of soft tissue proportion at the rostral entrance of choanae was the only predictor for candidacy for LATE in addition to conventional multilevel BOAS surgery
- 60% had temporary episodes of reverse sneezing, and 40% had nasal noise when sniffing and excited
Gobbetti, Vet Surg, 2018:
Permanent tracheostomy for severe laryngeal collapse secondary to BOAS
- Major complication rate?
- Early mortality rate?
- What was the leading cause of acute early death?
- What % of dogs had obstruction of the stoma caused by skin folds?
Gobbetti, Vet Surg, 2018:
- 80% major complication rate
- 40% early mortality rate
- Stoma obstruction by secretions and mucus plugs was the leading cause of acute early death
- 20% had obstruction of the stoma caused by skin folds
Gianella, JVIM, 2019:
- What % of dogs had GI signs?
- What % of dogs had varying degrees of laryngeal collapse?
Gianella, JVIM, 2019:
- 77% had GI signs
- 87% had varying degrees of laryngeal collapse
Heidenreich, Vet Surg, 2016:
CT of Pugs vs Frenchies with BOAS
- Which breed had significantly smaller cross-sectional areas of the airway dorsal to the soft and hard palates?
- Difference in soft palate between Pugs and Frenchies?
- Which breed was more likely to have nasopharyngeal aberrant turbinates?
Heidenreich, Vet Surg, 2016:
- Pugs had significantly smaller cross-sectional areas of the airway dorsal to the soft and hard palates compared to Frenchies
- The soft palate of Pugs was shorter and thinner than that of Frenchies
- Pugs were more likely to have nasopharyngeal aberrant turbinates
Liu, Vet Surg, 2017:
Traditional vs modified multilevel surgery (addition of partial resection of the cuneiform process)
- What % of dogs had grade I laryngeal collapse vs grade II or III laryngeal collapse?
- Outcomes?
- Did partial cuneiformectomy improve the post-op BOAS indices in dogs with advanced laryngeal collapse?
Liu, Vet Surg, 2017:
- 44% grade I laryngeal collapse vs 52% grade II or III laryngeal collapse (and 4% normal laryngeal conformation)
- 32% satisfactory outcome, 68% poor outcome
- No, post-op BOAS indices were not significantly different in dogs that did or did not have partial cuneiformectomy
Worth, JAVMA, 2018:
Temporary tracheostomy requirement post-op
- What factor increased the odds of requiring temporary tracheostomy post-op?
- Did the staphylectomy technique (CO2 laser vs incisional) affect the odds of requiring temporary tracheostomy post-op?
Worth, JAVMA, 2018:
- The odds of requiring temporary tracheostomy post-op increased 1.3 times for each 1 year increase in age
- No, staphylectomy technique was not associated with the odds of requiring temporary tracheostomy post-op