Exercise-induced pulmonary hemorrhage in thoroughbred horses: response to furosemide or hesperidin-citrus bioflavinoids.

The research investigates the effectivity of furosemide and hesperidin-citrus bioflavonoids in treating exercise-induced pulmonary hemorrhage (EIPH) in thoroughbred horses. The results showed that neither furosemide nor hesperidin-citrus bioflavonoids significantly alleviated EIPH in horses, based on comparisons of bleeding rates between treated and untreated groups, and reoccurrence of bleeding after 90 days in the group treated with hesperidin-citrus bioflavonoids.

Study Design and Groups

• The study includes 61 horses diagnosed with exercise-induced pulmonary hemorrhage (EIPH). EIPH is a condition characterized by bleeding from the lungs during intense physical activity, commonly occurring in racehorses.
• These horses were split into different groups for treatment evaluation: a group that received a furosemide treatment, a group that didn’t receive furosemide treatment, and a group that received hesperidin-citrus bioflavonoid.
• Furosemide is a diuretic, usually used to treat high blood pressure and heart failure, while hesperidin-citrus bioflavonoids are a type of plant-derived compound with various health benefits.

Furosemide Treatment Results

• Of those treated with furosemide 4 hours before racing, 55.7% (34 out of 61 horses) continued to bleed.
• By comparison, of the horses with EIPH that were not treated with furosemide prior to racing, 70.8% (17 out of 24 horses) continued to bleed.
• Statistical analysis revealed no significant difference in the bleeding frequencies between the treated and non-treated groups, indicating that furosemide did not have a significant impact on reducing EIPH in these horses.

Hesperidin-Citrus Bioflavonoids Treatment Results

• In the group of 45 horses given hesperidin-citrus bioflavonoids, 84.4% (38 out of 45 horses) still experienced bleeding when exercised 90 days later.
• There was no statistically significant difference between the results for hesperidin-citrus bioflavonoid-treated horses and those for horses known to stop bleeding without any treatment. This suggests that hesperidin-citrus bioflavonoids did not effectively alleviate EIPH in the treated horses.

Conclusion

• In sum, the study indicates that neither furosemide nor hesperidin-citrus bioflavonoids appear to be effective in significantly reducing the occurrence of EIPH in thoroughbred horses. These findings suggest that more research is needed to identify effective treatments for this condition.