Two-dimensional, long-axis echocardiographic ratios for assessment of left atrial and ventricular size in dogs

Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology
L E StrohmJ D Bonagura

Abstract

Left ventricular (LV) and left atrial (LA) enlargement affect management and outcome of dogs with cardiac disease. Short-axis, two-dimensional echocardiographic (2DE) images, indexed to the aorta (Ao), are frequently used to identify cardiomegaly. Long-axis images offer complementary views of the left heart. Eighty healthy dogs and 25 dogs with MMVD. Healthy dogs were prospectively recruited to determine reference intervals (Clinical Laboratory Standards Institute methodology) for long-axis ratios. Measurement variability and repeatability were quantified by intraclass correlation coefficient and coefficient of variation. Mean long-axis ratios from dogs with MMVD were compared with healthy dogs (unpaired t-test). In addition, the proportion of MMVD dogs exceeding the 97.5 percentile by LV/Ao and a conventional, allometric method were compared (McNemar's test). Two-dimensional echocardiographic long-axis reference intervals were as follows: left ventricular to aortic dimension (LV/Ao) 1.8-2.5; left atrial to aortic dimension (LA/Ao) 1.8-2.4, and left atrial to left ventricular dimension (LA/LV) 0.9-1.1. Intraobserver and interobserver measurement agreement was good-to-excellent (intraclass correlation coefficients ≥0.84), and da...Continue Reading

Citations

Apr 12, 2019·Journal of Veterinary Internal Medicine·Bruce W KeeneMasami Uechi
Jul 10, 2020·Journal of Veterinary Internal Medicine·Weihow Hsue, Lance C Visser
Aug 13, 2020·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Shen LiHao Cheng
Sep 17, 2020·Animals : an Open Access Journal From MDPI·Mila Benito, Laure Boutigny
Apr 1, 2019·Veterinary World·Yury A VatnikovAndrey N Zharov
Nov 24, 2020·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Mara BagardiChiara Locatelli
Dec 8, 2020·Journal of Veterinary Internal Medicine·Rebekah E DonaldsonKaren Humm
Jan 14, 2021·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Laetitia DulerMason W Wanamaker
Feb 23, 2021·Journal of Veterinary Internal Medicine·Abigail E RomanoSonya Wesselowski
May 25, 2021·Animal Genetics·M J O'BrienC M Wade
Jun 11, 2021·Journal of Veterinary Cardiology : the Official Journal of the European Society of Veterinary Cardiology·V PatataO Domenech
May 17, 2021·Journal of Veterinary Internal Medicine·Derek J MatthewsSarah A Hamer

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