What does this research mean for the field?

Pulsed wave Doppler echocardiography yields repeatable measurements of cardiac blood flow in horses, establishing baseline reference values that vary significantly by imaging view, vessel type, and the presence of functional murmurs. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To establish reference values for selected pulsed wave Doppler echocardiographic variables and evaluate cardiac blood flow dynamics in normal horses.

September 1, 1995Equine Veterinary Journal

Pulsed wave Doppler echocardiography in normal horses

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Why the study?

What are the reference values for pulsed wave Doppler echocardiography variables in normal horses?

Population

40 normal Thoroughbred and Thoroughbred cross horses

Design

Preclinical

Authors

KBKaren BlissittUniversity of Edinburgh JBJohn D. BonaguraCardiac Imaging

Discussion

Member takes

Implication

Documents higher aortic than pulmonary peak flow acceleration in horses; extends reference values but leaves open clinical ventricular assessment.

Key Points

To establish reference values for selected pulsed wave Doppler echocardiographic variables and evaluate cardiac blood flow dynamics in normal horses.
Evaluated 40 healthy Thoroughbred and Thoroughbred-cross horses using standard two-dimensional echocardiography to guide pulsed wave Doppler sample site alignment.
Measured tricuspid inflow velocities, mitral inflow, and great vessel flow parameters, including pre-ejection period, ejection time, and acceleration time.
Peak blood flow acceleration was significantly higher in the aorta (mean 8.01 m/s²) than in the pulmonary artery (4.45 m/s², P = 0.000).
Horses with functional ejection murmurs exhibited lower peak aortic acceleration and longer acceleration times, whereas horses with left hemithorax filling murmurs displayed significantly higher peak mitral E velocities.

Structured PICO

What are the reference values for pulsed wave Doppler echocardiography variables in normal horses?

Population

40 normal Thoroughbred and Thoroughbred cross horses

Intervention

Pulsed wave Doppler echocardiography guided by standard two-dimensional (2-D) images

Outcome

Reference values for selected Doppler derived variables (including tricuspid inflow velocities, peak acceleration of blood flow, pre-ejection period, ejection time, and acceleration time)surrogate

Pulsed wave Doppler echocardiography provides repeatable measurements that may be useful in assessing ventricular function in horses.

Cite This Study

Blissitt et al. (1995) studied this question.

synapsesocial.com/papers/6a1d2f7a7328fa9a742f17f7 https://doi.org/10.1111/j.2042-3306.1995.tb04988.x

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Implication

Documents higher aortic than pulmonary peak flow acceleration in horses; extends reference values but leaves open clinical ventricular assessment.

Pulsed wave Doppler echocardiography in normal horses

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Pulsed wave Doppler echocardiography in normal horses

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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