Effects of various cardiovascular drugs on indices obtained with two-dimensional speckle tracking echocardiography of the left atrium and time–left atrial area curve analysis in healthy dogs

Abstract

Results indicated that, following administration of dobutamine, esmolol, milrinone, or phenylephrine to healthy dogs, left atrial phasic function indices were fairly stable and did not parallel changes in left ventricular function indices.

Assessment of Left Atrial Deformation and Function by 2‐Dimensional Speckle Tracking Echocardiography in Healthy Dogs and Dogs With Myxomatous Mitral Valve Disease

“…The majority of STE studies in dogs to date focused on the evaluation of mechanical ventricular properties 18, 19, 20, 21, 22, 23, 24, 25, 26, 27. Few data are available regarding the application of this technique for LA assessment28, 29, 30, and no studies have focused on the evaluation of LA STE‐derived strain in dogs with cardiac disease.…”

“…3,4,10,16,17 The majority of STE studies in dogs to date focused on the evaluation of mechanical ventricular properties. [18][19][20][21][22][23][24][25][26][27] Few data are available regarding the application of this technique for LA assessment [28][29][30] , and no studies have focused on the evaluation of LA STE-derived strain in dogs with cardiac disease. Therefore, the aims of this study were (1) to document the feasibility and reproducibility of STE in the assessment of LA function in dogs; (2) to compare selected STE indices of LA function between healthy dogs and dogs with MMVD at different stages; and (3) to evaluate the association between these indices and traditional echocardiographic variables.…”