A retrospective study of horses investigated for weight loss despite a good appetite (2002-2011).

This study examines historical and clinical data of horses that experienced unexplained weight loss despite having a healthy appetite. Results indicate that lower albumin and total protein concentrations in the body were associated with higher mortality rates. The severity of these conditions and the horse’s body condition might potentially serve as indicators of survival chances.

Objective and Methodology of the Study

• The research is a retrospective study seeking to provide an illustrative epidemiological analysis of horses that were evaluated for unexplained weight loss despite a good appetite. This condition presents an often diagnostic challenge for equine veterinarians, warranting such a research.
• Data was gathered from the medical records of horses that were referred for investigation regarding this condition.
• The data collected comprised the history of the cases, clinical findings, diagnostic findings, and the final outcomes. Notably, the outcome of interest was either survival or nonsurvival.
• Statistical analyses including the Mann-Whitney U test, Fisher’s exact test or Pearson’s rank correlation were employed to evaluate associations, with the significance level set at p≤0.05.

Results of the Study

• Out of all cases reviewed, forty met the inclusion criteria.
• The findings suggest that total protein and albumin concentrations upon admission were higher in horses that survived than in those that did not.
• There was a positive correlation between these concentrations and outcome, with hypoproteinaemic and hypoalbuminaemic horses posing higher odds for nonsurvival.
• Also, the study found a positive correlation between the body condition score and the total protein and albumin concentrations upon admission. This correlation also extends to the duration of clinical signs.

Conclusions of the Study

• The research concluded that the severity of hypoproteinaemia and hypoalbuminaemia are related to nonsurvival. Thus, the concentration level of these proteins could act a potential prognostic indicator for survival in horses.
• The study also highlights the importance of assessing the body condition in conjunction with clinicopathological evaluation in horses presenting weight loss despite a healthy appetite. Thus, veterinarians could potentially use body condition and albumin concentration as a prognostic tool.