Large Colon Volvulus in a Neonatal Foal Secondary to Atresia Coli.

The research article is about a newborn foal (a horse less than a year old) who was diagnosed with a condition called ‘atresia coli’ and was subsequently found to have ‘large colon volvulus‘. The foal did not respond to initial treatment and was euthanized, with a post-mortem examination confirming the conditions.

Introduction and Case Presentation

• The article focuses on a case that involved an 18-hour-old foal that was brought in with a suspicion of meconium impaction – a common complication in newborn foals where the first fecal matter is unable to pass normally.
• The initial treatment did not produce any positive response, leading to a preliminary diagnosis of ‘atresia coli’ – a congenital condition where parts of a horse’s colon are absent or closed.
• The owner of the foal declined surgical intervention and instead, the foal was euthanized approximately 12 hours post-admission.

Post-mortem Examination

• Upon conducting a post-mortem examination, the diagnosis of atresia coli was confirmed, specifically type 3. This means that the foal’s colon ended at the left ventral colon, leaving a large portion of it non-functional.
• Further, a 1,080-degree large colon volvulus (LCV) at the sternal flexure was discovered. LCV is a potentially fatal condition where a horse’s large intestine twists around itself.

Discussion

• The research article speculates a possible relationship between atresia coli and large colon volvulus. This implies that the presence of atresia coli could increase the risk or predispose a foal to developing LCV. However, the authors indicate that there isn’t sufficient evidence to conclusively establish this link.
• Additionally, histopathology was not carried out in this case. Histopathology is a microscopic examination of tissues to study the manifestations of the disease. The authors suggest that histopathology could provide additional insights in future cases of atresia coli.
• The unique aspect of this case, as related to its clinical relevance, is the coexistence of atresia coli and large colon volvulus in the same subject which is rare. Understanding such cases could contribute to improved diagnostic processes and treatment strategies for similar cases in future.