Persistent right aortic arch associated with a persistent left ductus arteriosus and an interventricular septal defect in a horse

Abstract

SUMMARYIn this article a description is given of the clinical and postmortem findings of a persistent right aortic arch in association with a persistent left ductus arteriosus and a ventricular septal defect in a horse.

Congenital oesophageal stricture in anArabian filly treated by balloon dilation

“…The most common congenital oesophageal anomalies in foals are related to vascular ring anomalies mainly, but not exclusively, persistent aortic arches (Bartels and Vaughan ; van der Linde‐Sipman et al . ; Mackey et al . ; Butt et al .…”

“…Oesophageal anomalies are far less common in neonatal foals and are encountered more frequently in older foals as a result of gastroesophageal reflux and ulceration (Murray et al 1988). The most common congenital oesophageal anomalies in foals are related to vascular ring anomalies mainly, but not exclusively, persistent aortic arches (Bartels and Vaughan 1969;van der Linde-Sipman et al 1979;Mackey et al 1986;Butt et al 1998;Smith 2004;Bauer et al 2006). Functional and stenotic anomalies are rarely reported or suspected (Craig et al 1989;Clabough et al 1991).…”

Dilatación de estenosis esofágica proximal con balón guiado por endoscopia y radiografía en potro falabella

“…Most of the causes are linked to both pharyngeal and laryngeal abnormalities, like soft palate displacement and cleft palate (16). On the other side, there are some reports describing congenital esophageal abnormalities ending in esophageal obstruction in foals (17)(18)(19)(20)(21)(22)(23).…”

Advances in diagnosis and treatment of persistent right aortic arch in a neonatal foal

“…The second clinically important message in this report is that, even with prompt and accurate diagnosis, careful presurgical management, skilled surgical correction and an uncomplicated post operative recovery, foals with PRAA apparently have a poor prognosis for long-term survival. Of the 6 equine cases now reported (Bartels and Vaughan 1969;Petrick et al 1978;Van der Linde-Sipman et al 1979;Mackey et al 1986;Butt et al 1998;Bauer et al 2006), only 1 of 4 foals that underwent surgery survived longer than 3 months post operatively.…”

“…As PRAA is a developmental anomaly, it is possible that the foal had another anatomical abnormality or, more likely, a functional defect not identified by routine bloodwork, CT, thoracotomy or necropsy. Van der Linde-Sipman et al (1979) described other cardiovascular anomalies in association with PRAA in a horse, so it is entirely possible that other less obvious abnormalities of structure or function were present in the case described by Bauer et al (2006).…”