Equine pulmonary disease: a case control study of 300 referred cases. Part 4: Treatments and re-examination findings.

The research article investigates the effectiveness of treatment measures in horses suffering from various categories of pulmonary diseases and records the progress after treatment through multiple examinations or reports. It is discovered that recovery is generally high in most disease categories but alarming in some specific ones where the survival rate is markedly low.

Overview of the Study

The research focused on 270 horses that suffered from pulmonary disorders, of which 54.4% (147 horses) were provided at least one type of re-examination after initial treatment. This re-examination included clinical examinations, bronchoscopic observations, lung function tests, and cytological (cell-based) examinations. Additionally, about 30.7% (83 of these horses) had their clinical progress evaluated through either verbal or written reports.

Categories of Pulmonary Diseases

• The researchers divided the pulmonary diseases into several categories such as chronic obstructive pulmonary disease, infectious disease, S. zooepidemicus (a bacteria often associated with respiratory disease in horses), undifferentiated pulmonary disease, lungworm infection, miscellaneous pulmonary disease, idiopathic chronic hypoxaemic and exercise-induced pulmonary haemorrhage groups.
• The high recovery rate was recorded in most disorders like chronic obstructive pulmonary disease, infectious disease, S. zooepidemicus, undifferentiated pulmonary disease, and lungworm infection.

Concerning Findings

• The researchers expressed concern over less recovery or fatality rates in certain disease categories. For instance, in the miscellaneous pulmonary disease group, about 40% of the horses died post-treatment.
• Similarly, horses within the groups suffering idiopathic chronic hypoxaemic (chronic deficiency in the blood’s oxygen level without a known cause) and exercise-induced pulmonary haemorrhage (bleeding from the lungs caused by intense exercise) did not experience high recovery rates.

Implication of the Study

• The findings from this study play a crucial role in understanding the response to treatment across different categories of equine pulmonary diseases. Moreover, this study sheds light on certain diseases where further research and improved treatment protocols might be needed due to the surprisingly low recovery rates.