“…Of these parameters, ESVI, LVIDSN, FS, EF, and E wave remained statistically unchanged from the Compared to the values of the Control group at the same timepoint, the PIMO PO group showed significant differences in FS and EF at T30, and in CI, ESVI, LVIDSN, FS, EF, LA/Ao, IVCT, and LVET at T60. This suggests that the effect of oral pimobendan was enhanced up to 90 min after administration, which is consistent with previous studies on the pharmacokinetics of oral pimobendan (34,35). In one study, maximal cardiovascular effects were observed 2-4 h after a single oral dose (0.26-0.28 mg/kg) in healthy dogs (35) whereas, in another study, the mean time to peak concentration with a single oral dose of pimobendan in dogs with MMVD was 1.66 h, independent of the ACVIM stage (34).…”