Key result
Moderate grades of pulmonary regurgitation in athletic horses did not significantly alter echocardiographic cardiac indices compared to normal horses.
Why the study?
Does the presence of pulmonary murmurs (grades 3 and 4) correlate with altered echocardiographic cardiac indices in athletic horses?
Observational (n=18)
Does the presence of pulmonary murmurs (grades 3 and 4) correlate with altered echocardiographic cardiac indices in athletic horses?
p-value: p=<0.05
Moderate grades of pulmonary regurgitation murmurs in athletic horses are not associated with significant changes in echocardiographic cardiac indices.
Moderate pulmonary regurgitation leaves echocardiographic indices unchanged in athletic horses; leaves open long-term prognostic implications.
BACKGROUND: Determining the clinical significance of cardiac murmurs is widely considered in equine practice. Pulmonary murmurs are commonly detected in athletic horses. Echocardiography plays a leading role in assessment of these murmurs. OBJECTIVES: Echocardiographic evaluation of horses with pulmonary regurgitation and determining the importance of pulmonary valve murmurs. METHODS: A total number of 450 athletic horses were examined with focus on cardiac and respiratory systems and 18 horses (8 horses with pulmonary murmur grades 3 and 4 and 10 normal horses) were included in echocardiographic examination. RESULTS: B-mode, M-mode, color flow Doppler and spectral Doppler were performed on two groups and the calculated indices were compared. No statistical difference was found between the values of the two groups (p<0.05). CONCLUSIONS: No significant correlation was found between severity of murmurs grade and the severity of regurgitating jets. We found that with moderate grades of pulmonary regurgitation, no change in cardiac indices is present.
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Rostami et al. (2015) conducted an observational in Pulmonary regurgitation (n=18). Pulmonary regurgitation (murmur grades 3 and 4) vs. Normal horses was evaluated on Echocardiographic indices (p=<0.05). Moderate grades of pulmonary regurgitation in athletic horses did not significantly alter echocardiographic cardiac indices compared to normal horses.
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