Key result
Transthoracic echocardiography establishes healthy feline right ventricular reference values, with mean TAPSE of ~0.8 cm.
Why the study?
Right ventricular parameters change in many cardiovascular diseases, making normal reference values necessary to diagnose these conditions.
Cross-Sectional (n=10)
No
This study establishes normal reference values for right ventricular echocardiographic parameters in healthy domestic short-haired cats to aid in the early diagnosis of feline heart disease.
Answers are grounded in this paper and cite their sources.
Provides reference RV values in healthy cats; leaves open diagnostic utility until validated in larger clinical cohorts.
Right ventricular parameters change in many cardiovascular diseases; so, the presence of normal right ventricular parameters is necessary to diagnose these diseases. Ten clinically healthy adult domestic short-haired cats including six males and four females in the range of 2.70 to 4.80 kg were studied using echocardiography without sedation. The speed and pressure of blood flow through the tricuspid and pulmonary valves, speed of the movement of tricuspid valve and tricuspid annular plane systolic excursion (TAPSE) were recorded using conventional pulsed-wave (PW) Doppler, tissue Doppler imaging (TDI) and M-mode, respectively. No significant statistical differences were observed between the measured values and sex, heart rate and body weight. A positive correlation was observed between the maximum velocity of the right ventricular outflow tract and heart rate and also between TAPSE slope and body weight. With determining the normal values of PW-TDI of the right ventricle in apparently healthy domestic short-haired cats, it is expected that with providing normal reference values, the diagnosis of heart diseases especially asymptomatic heart disease be achieved as soon as possible to provide the best appropriate therapeutic management and monitoring decision about them.
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Darabizadeh et al. (2023) conducted a cross-sectional in Healthy adult domestic short-haired cats (normal right ventricular reference values) (n=10). Echocardiography (pulsed-wave Doppler, tissue Doppler imaging, and M-mode) was evaluated on Tricuspid annular plane systolic excursion (TAPSE) and right ventricular outflow tract maximum velocity (RVOT Vmax) (p=<0.001). Echocardiography in 10 healthy cats yielded mean TAPSE of 0.79 cm and RVOT Vmax of 0.93 m/s, with RVOT Vmax correlating with heart rate and TAPSE slope with weight.
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