Utility of tricuspid annular plane systolic excursion normalized by right ventricular size indices in dogs with postcapillary pulmonary hypertension

Autor: Yunosuke Yuchi, Ryohei Suzuki, Takahiro Teshima, Hirotaka Matsumoto, Hidekazu Koyama
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Veterinary Internal Medicine, Vol 35, Iss 1, Pp 107-119 (2021)
Druh dokumentu: article
ISSN: 1939-1676
0891-6640
DOI: 10.1111/jvim.15984
Popis: Abstract Background Tricuspid annular plane systolic excursion (TAPSE) is a common right ventricular (RV) function indicator. However, TAPSE was not decreased in dogs with myxomatous mitral valve disease (MMVD) and postcapillary pulmonary hypertension (PH) because of its load, angle, and body weight dependency, and TAPSE was considered a preload‐dependent index. Objectives To evaluate the utility of TAPSE normalized by RV size in dogs with postcapillary PH. Animals Twenty healthy dogs and 71 MMVD dogs with or without PH. Methods In this prospective observational study, end‐diastolic RV internal dimension (RVIDd), end‐diastolic and end‐systolic RV area, and end‐diastolic RV wall thickness were measured as RV size indices. The TAPSE was measured using B‐mode and M‐mode methods. Normalized TAPSE was calculated by dividing TAPSE by each RV size index. The RV strain was obtained as the detailed RV function using 2‐dimensional speckle tracking echocardiography. All indices were compared among the PH severity groups and in the presence of right‐sided congestive heart failure (R‐CHF). Results Although nonnormalized TAPSE was higher with PH severity progression, each normalized TAPSE showed a significant decrease in the severe PH group (P
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