2017 ACVIM Forum Research Abstract Program

Twenty dogs of different brachiocephalic breeds with signs of upper airway obstruction were recruited. No difference was found before and after surgery in the total score obtained with the FETCHSV2-Q TM instrument: 30.1 AE 11.2 vs. 29.3 AE 6.7 (P > 0.05). In this sample, TAPSE values were reduced compared to the established reference ranges in dogs (population of this research: 0.9 AE 0.3 cm vs reference range: 1.5-2.0 cm). In addition, there was difference between TAPSE obtained 10 and 2 days before and 2-6 months after corrective surgery: 0.9 AE 0.3 vs. 1.4 AE 0.9 (P < 0.05). The maximum velocity of the S' wave of the tricuspid annulus before surgery was 8.4 AE 2.3 cm/s and after surgery was 9.25 AE 0.9 cm/s, being a statistically significant difference (P-value < 0.05). The values of the E 0 early wave velocity was similar and before the procedure was 7.75 AE 1.09 cm/s vs. 8.50 AE 0.89 cm/s afterward (P < 0.05). RVIMP was 0.19 AE 0.7 before surgery and similar after intervention 0.25 AE 0.2 (P-value > 0.05). The Pre-ejection time (PEP) was 81 AE 7.9 ms before surgery and markedly diminished post-recovery 64 AE 11 ms (P-value < 0.05).