Peer-reviewed veterinary case report
Dog atrial septal defect closed with Amplatzer device and outcomes
By Gordon, S G et al.·Published in Journal of veterinary internal medicine·2009·Department of Small Animal Clinical Sciences, United States·View original on PubMed →
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Original publication title: Transcatheter atrial septal defect closure with the Amplatzer atrial septal occluder in 13 dogs: short- and mid-term outcome.
- Species:
- dog
Plain-English summary
Thirteen dogs with a heart condition called atrial septal defect (ASD) underwent a procedure to close the defect using a device called the Amplatzer atrial septal occluder. Most of the dogs had successful closures, with follow-up tests showing that six had no remaining issues, while others had minor residual shunting that wasn't significant. The dogs were monitored for an average of about 12 months after the procedure, and those with successful closures lived an average of over 22 months without major complications. Overall, the procedure showed promising results for treating this heart condition in dogs.
People also search for: dog heart murmur treatment · atrial septal defect in dogs · Amplatzer device for dog heart condition
Abstract
BACKGROUND: Transcatheter atrial septal defect (ASD) closure in the dog was first reported in 2005. OBJECTIVES: Describe the technique and both short- and mid-term outcome of transcatheter ASD closure with the Amplatzer atrial septal occluder (ASO). ANIMALS: Thirteen client-owned dogs with ASD. METHODS: Records of the initial 13 dogs in which transcatheter ASD closure was attempted at Texas A&M University were reviewed. RESULTS: All dogs had hemodynamically relevant septum secundum ASD. Two dogs had concurrent congenital abnormalities. ASOs were deployed in 13 dogs and released in 12. Eleven were released by a right jugular approach and 1 by a transatrial approach through a right lateral thoracotomy. Transthoracic echocardiographic estimates of ASD size were 14.0 + or - 5.4 mm (mean + or - 1 standard deviation) with a range of 7-22 mm. Accidental right atrial release occurred in 1 dog and embolization after release occurred in 2 dogs. Transcatheter ASD closure was successful in 10 dogs. Transthoracic color Doppler echocardiography the day after ASD closure indicated complete occlusion in 5 dogs, trivial to mild residual shunting in 4 dogs, and moderate residual shunting in 1 dog. Follow-up echocardiograms (mean of 12.4 + or - 7.4 months postprocedure) were available for 9 dogs. There was no residual ASD shunting in 6 dogs. In 3 of the 5 dogs with postoperative residual shunting it was judged to be decreased and hemodynamically unimportant relative to the dogs' postoperative evaluations. The mean length of event-free survival in the 10 dogs that underwent successful transcatheter ASD closure was 22.2 + or - 10.2 months.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/19678889/