Radiographic features of cardiogenic pulmonary oedema in cats with left-sided cardiac disease
The aims of this study were to describe the radiographic features of cardiogenic pulmonary edema (CPE) in a large group of cats with left-sided cardiac disease. Researchers also aimed to determine the association between the radiographic features of CPE and the underlying cardiac disease.
The research team reviewed thoracic radiographs of cats with CPE and echocardiographic evidence of left-sided cardiac disease and left atrial enlargement (LAE), and performed cardiac silhouette, pulmonary vessels and pulmonary parenchyma evaluation. Interstitial or alveolar patterns were classified according to distribution (i.e., diffuse, multifocal or focal) and location (i.e., craniodorsal, cranioventral, caudodorsal, caudoventral and perihilar).
A Student's t-test and Mann-Whitney U-test, or the two-proportion z-test, were used to compare continuous or categorical variables, respectively, between cats affected by the two most represented cardiac diseases, namely hypertrophic cardiomyopathy (HCM) and restrictive cardiomyopathy (RCM).
The team included 71 cats in the study. Among them, 46 or 65%, and 13 or 18% had presented for HCM and RCM, respectively. Subjective and objective cardiomegaly, and subjective and objective LAE were detected in 97.2% and 91.9% of cats and in 80.3% and 40.6% of cats, respectively.
Pulmonary artery abnormalities, in particular caudal pulmonary artery dilation, were found in 77.5% of cats. Pulmonary artery to pulmonary vein ratio = 1 was found in 71.8% and 55% cats on right lateral and ventrodorsal or dorsoventral views, respectively. Interstitial (57.8%) and mixed interstitial-alveolar (38%) pattern, multifocal (84.5%) and symmetrical (75%) distribution with prevalent ventrocaudal (65.6% of cats) and ventrocranial (60.9% of cats) locations were most frequently observed. No difference was found for any of these radiographic features between cats with HCM and RCM.
The researchers concluded that moderate-to-severe cardiomegaly and LAE, caudal pulmonary artery and vein dilation, as well as a ventral, multifocal and symmetrical interstitial pulmonary pattern, were the main radiographic features of CPE in evaluated cats. Underlying cardiac disease did not influence the radiographic features.
Alessia Diana, et al. “Radiographic features of cardiogenic pulmonary oedema in cats with left-sided cardiac disease: 71 cases.” J Feline Med Surg. 2022 Dec;24(12): e568-e579. doi: 10.1177/1098612X221121922.
Comments
Tag
Related Articles
More news
Copyright © 2025 - All Rights Reserved
ISSN 2768-198X
List
Add
Please enter a comment