Abstract
Neonatal encephalopathy represents a broad neurological syndrome which encompasses newborn foals presenting a variety of non-infectious neurologic signs and/or abnormal behaviors in the immediate postpartum period. It is recognized as the most predominant neurological disorder in neonatal foals. Prognostic factors can guide clinicians in medical decision-making, aiding in the establishment of survival probabilities. The aim of this work was to scrutinize the prognostic value of clinical and laboratorial findings upon admission and posterior comorbidities developed during hospitalization, assessing their influence on the outcome of foals with NE. For this purpose, the medical records of 61 neonatal foals with a primary diagnosis of NE were retrospectively analyzed. The overall survival rate was 57.4%. Most foals presented recumbency at admission, which was associated with higher mortality rates (p = 0.002). Hypothermic foals at admission were 4.85 times more likely to succumb (p = 0.015). The presence of hypoglycemia at admission was associated with higher mortality rates (p = 0.002). Foals with hypercreatinemia at admission had 6.67 times greater odds of dying. The development of seizures contributed to 4.14 greater odds of dying. Foals that developed comorbidities during hospitalization had 40.1 times greater odds of dying, with pneumonia and sepsis being the most relevant comorbidities. In foals with NE, rectal temperature, hematocrit, blood glucose, and creatinine concentrations are simple, quick-to-measure parameters that may have prognostic value during admission.