The authors declare no conflict of interests.
Acquired Gerbode defect and third-degree atrioventricular block secondary to vehicular trauma in a dog
Article first published online: 24 SEP 2013
© Veterinary Emergency and Critical Care Society 2013
Journal of Veterinary Emergency and Critical Care
Volume 23, Issue 6, pages 637–642, November/December 2013
How to Cite
Cunningham, S. M., Lindsey, K. J. and Rush, J. E. (2013), Acquired Gerbode defect and third-degree atrioventricular block secondary to vehicular trauma in a dog. Journal of Veterinary Emergency and Critical Care, 23: 637–642. doi: 10.1111/vec.12094
- Issue published online: 4 DEC 2013
- Article first published online: 24 SEP 2013
- Manuscript Accepted: 2 AUG 2013
- Manuscript Received: 11 JUN 2012
- acquired septal defect;
- pacemaker therapy;
- traumatic heart block
To describe a case of traumatically acquired left ventricular to right atrial communication (Gerbode defect), atrial septal defect (ASD), and third-degree atrioventricular block (AVB) necessitating permanent pacemaker placement in a dog.
A 1.5-year-old neutered male Newfoundland dog was struck by a car and was referred for further evaluation and treatment of hemoabdomen. Persistent third-degree AVB, a right-sided cardiac murmur and right-sided congestive heart failure (CHF) were identified, and echocardiographic examination revealed a type-A Gerbode defect and ASD. Pimobendan, furosemide, and enalapril therapies were initiated for treatment of CHF. Persistent AVB eventually necessitated permanent pacemaker implantation. Initial attempts at minimally invasive occlusion of the Gerbode defect were unsuccessful; however the dog continues to do well clinically on chronic cardiac medications.
New or Unique Information Provided
To our knowledge, an acquired Gerbode defect secondary to trauma with associated ASD, CHF, and third-degree AVB necessitating permanent pacemaker therapy have not yet been reported in the veterinary literature. The extended survival and follow-up available on this patient postpacemaker implantation also documents that longer term survival is possible with this defect.