2016 ACVIM Forum Research Abstract Program

Medical records and echocardiographic studies from 2008-2015 were reviewed and measured. Cats were categorized into four groups: 1) L-CHF cats with pleural effusion, with or without pulmonary edema, 2) L-CHF cats with pulmonary edema only, 3) cats with pulmonary disease without evidence of cardiomyopathy, and 4) healthy cats. Pulsed wave Doppler recordings of pulmonic outflow were used to measure acceleration time (AT), ejection time (ET), AT:ET ratio, and maximum velocity through the pulmonic valve (PA Vmax). The main pulmonary artery diameter (MPA), aortic diameter (Ao), MPA:Ao ratio, left atrial diameter (LA), and LA:Ao ratio were measured from right parasternal short axis images, while right atrial (RA) maximum diameter, left atrial maximal diameter (LA Long ), RA:LA Long ratio, and RA:Ao ratio were measured from right parasternal long axis images. Studies were reviewed for the presence of tricuspid regurgitation (TR) and the maximum TR velocity (TR Vmax) was measured when available. Groups were compared by one-way ANOVA or Kruskal Wallis tests where appropriate.