Exercise-induced Pulmonary Hemorrhage: Is It Important and Can It Be Prevented?

Area of Science:

• Equine sports medicine
• Veterinary cardiology
• Equine respiratory research

Background:

• Exercise-induced pulmonary hemorrhage (EIPH) is a frequent condition in horses during strenuous exercise.
• Risk factors identified include racing in cold weather and the use of bar shoes.

Purpose of the Study:

• To investigate strategies for mitigating the severity of EIPH in horses.
• To assess the impact of EIPH on equine performance.

Main Methods:

• Analysis of EIPH occurrence and severity in racing horses.
• Evaluation of interventions such as modified race intervals and pacing strategies.

Main Results:

• Moderate to severe EIPH impacts performance in approximately 6% of horses.
• Increased race intervals and negative race pace strategies may decrease EIPH severity.
• EIPH severity can be erratic between races but shows weak progression over multiple starts.

Conclusions:

• EIPH management strategies can potentially reduce its impact on performance.
• Targeted interventions may benefit horses experiencing moderate to severe EIPH.