Prognosis for return to racing after recovery from infectious pleuropneumonia in thoroughbred racehorses: 70 cases (1984-1989).

This study investigates the chances of Thoroughbred racehorses returning to competitive racing after recovery from infectious pleuropneumonia. The results show that the likelihood is good, although horses that develop complications related to the respiratory infection have a worse prognosis.

Research Methodology

• The research is based on a retrospective approach, looking back at the medical history and performance of 70 Thoroughbred horses that recovered from pleuropneumonia.
• The study focuses mainly on horses that were ≤ 5 years old or those > 5 years old, but only if they were known to be in race training during the illness.

Results and Findings

• Of the 70 horses studied, 43 (61%) were able to return to racing after recovering from the disease.
• Out of the 43 that returned to racing, 24 (56%) horses managed to win at least one race.
• The study found no significant difference in prognosis between horses that required an indwelling thoracic drain (a tube inserted into the chest cavity to drain fluid or air) and those that did not.

Impact of Complications and Hospitalization

• Horses that developed complications linked with pleuropneumonia such as pulmonary abscess, cranial thoracic mass, or bronchopleural fistula exhibited lower chances of returning to racing.
• The length of the horses’ hospitalization was not deemed indicative of the recovery outcome or their ability to return to racing.

Conclusions

• The study concludes that in Thoroughbreds, the prognosis for return to racing after recuperation from uncomplicated pleuropneumonia (without complications) appears to be positive.